Desiccant Rotors International Pvt. Ltd. Udyog Vihar, Gurugram, Haryana

Our company is reputed as one amidst the prime Manufacturers of Treated Fresh Air Units, based in India. Our Treated Fresh Air Units are designed to serve as ultimate solution for IEQ and Energy Saving in a single modular unit with option to add modules for cooling, heating, humidification, high efficiency filtration, mixing, sound attenuation, etc. The advance configurations make our Treated Fresh Air Units easy to operate and ensure excellent performance. Treated Fresh Air Units (TFA) are also sometimes referred to in the industry as Fresh Air Handing Untis FAHU, Fresh Air Units, Rooftop Units, Outdoor Air Handing Units OAHU, Energy Recovery Units or simply Air Handling Units. Advantages with new series DRI TFA Time tested Reliability : The DRI TFA . . . . FlexAir Series comes from plant having over 10 years' experience in making two stream systems.Casing Air Leakage : The casing air leakage is of prime importance in two tier systems i.e. systems with two streams with high latent difference between both. The FlexAir Series TFA from DRI is designed in accordance with European Standard for leakage Class B.Maintenance-free Reliable Operation : Assured problem free operations even under tough circumstances as a result of solid construction with tight sealing between supply and exhaust air ensures minimal leakage.Very Low Pressure Drops : All functions like coils, heat exchangers etc. are optimised to give lowest possible pressure drop in proportion to highest possible efficiency resulting in very low LCC. Easy to Maintain Fan Assembly Fan assembly slides out for servicing. Saves time and money !Reliable solid transmission construction saves belts and bearing High Quality Standardised Filters Deep folded bag filters with big filter areas and good sealingThe good tightness ensures clean air supply to the room is of high quality Uniquely Designed Connection System : The unique design makes it possible for the assembler to choose from two different ways of connection when he assembles the unit in the machine room. Best Technology in Casing Manufacturing : The DRI TFA is manufactured in accordance with the best technology in casing manufacturing. New Modular Design . . . More Model Options : The new design allows several functions to be placed in the same casing. The FlexAir series has a wider range to cover the flow range better making it possible for you to easily select the right unit with the lowest LCC. Molecular sieve coated Heat Wheels Almost no cross contaminationOver 80% energy recovery, both latent and sensible. Ideal for tropical climates where latent loads are 2-3 times the sensible loadTotal energy recovery, recovers both latent and sensible energySpecially, adjustable purge section rules out cross contamination of air stream (less than 0.04%)Special labyrinth sealing arrangement ensure no cross leakage of air stream between the supply and exhaust sectionMost advanced technologyCertified/ Tested in international labsWheels edges hardened to suit marine/ coastal application needsBest LCC (Life Cycle Cost) How does the DRI Treated Freah Air Unit work? The heart of the FlexAir Treated Fresh Air Unit is the EcoFresh desiccant coated energy recovery wheel, which slowly rotates between its two sections. In one section, the stale, conditioned air is passed through the wheel, and exhausted in the atmosphere. During this process, the wheel absorbs sensible and latent energy from the conditioned air, which is used to condition (cool / heat) the incoming fresh Air in the other section, during the second half of its rotation cycle. Thus, you can have more fresh Air at lower humidity levels and energy costs inside your conditioned space. Ideal For Hospitality � Hotels, Restaurants, Pubs, Bars, DiscothequesHealthcare � Hospitals, Nursing Homes, Operation Theatres, Nurseries, Burn WardsCommercial Areas � Supermarkets, Departmental Stores, Office Buildings, Conference Facility Educational and Recreational Areas � Schools, Auditoriums, Bowling alleys

The DRI Treated Fresh Air Units provide a complete solution for IEQ and Energy Saving in a single modular unit with option to add modules for cooling, heating, humidification, high efficiency filtration, mixing, sound attenuation, etc. Treated Fresh Air Units (TFA) are also sometimes referred to in the industry as Fresh Air Handing Untis FAHU, Fresh Air Units, Rooftop Units, Outdoor Air Handing Units OAHU, Energy Recovery Units or simply Air Handling Units.

We are offering spot coolers. dri spot coolers provide an easy and effective method of cooling over heated areas within a larger area, as opposed to providing general cooling by means of a remote cooler fixed at one place. the arctic spot cooler benefits * portable cooling * durable & reliable * environment friendly * economical operation * comfortable working environment * easy maintenance

We are recognized as a trusted Manufacturer, Exporter & Supplier of Spot Cooler. DRI Spot Coolers are reckoned worldwide for providing effective cooling within larger & much heated areas when compared to general cooling by means of a remote cooler fixed at one place. We offer the Spot Cooler to the clients at the market leading price. Benefits Economical operationPortable CoolingComfortable working environmentEasy MaintenanceDurable & reliableEnvironment friendly

We hold specialization in the production & distribution of Passive Dehumidification Wheels. The Passive Dehumidification Wheels precisely regenerates desiccant without additional energy usage. The Passive Dehumidification Wheels with unique G3MA technology capably regenerates with the 50% RH room return air allowing for substantial moisture removal through dehumidification of the fresh air being supplied to the room. Highlights Average removal around 14 gr/lbHigh performance �in-situ� synthesized desiccant (wheel)Fully water washable100% non-flammableRemoves moisture from a saturated air stream without heat / thermal regenerationNo washing away of desiccant on continued exposure to saturated / wet air

We are known in the industry for consistently manufacturing and exporting qualitative Air Washer. In this range, we offer all types of Air Washer that can also be customized.

We are offering energy recovery wheels (HRWs). The ecofresh energy recovery wheel, which recovers total energy (sensible as well as latent), assists in meeting all the requirements of indoor air quality (IAQ), humidity control and energy saving. DRI offers the highest recovery enthalpy wheels in the world (aluminum substrate coated with a choice of desiccants). Incorporation of ecofresh heat wheels into the air-conditioning system means more outdoor air at lower energy cost (reduced chiller load). Energy recovery wheels also known in the industry as energy conservation wheels, energy recovery wheels, enthalpy wheels, sensible wheels, hygroscopic wheels, condensation wheels or sorption wheels. These air-to-air heat exchangers can recover both sensible (heat) and latent (moisture) energy but may use different technologies and offer different efficiencies. How does the ecofresh wheel work? In a typical installation, the wheel is positioned in an air handling unit so that it is divided into two half moon sections. Stale exhaust air is drawn through one half and outdoor air through the other in a counter flow pattern. At the same time, the wheel is rotated. Sensible heat is transferred as the metallic substrate picks up and stores heat from the warmer air stream and gives it up to the cooler one. Latent heat is transferred as the desiccant coating on the metallic substrate adsorbs moisture from the air stream that has the higher humidity ratio and releases the moisture into the air stream that has the lower humidity ratio. Operating principle Latent heat is transferred as the synthesized metallic substrate condenses moisture from the air stream that has the higher humidity ratio through adsorption by ecosorb (with a simultaneous release of heat) and releases the moisture through evaporation (and heat pick-up) into the air stream that has the lower humidity ratio. Benefits of ecofresh energy recovery wheels * pre-conditions incoming fresh air. * easily integrated/retrofitted into new/existing ventilation systems. * delivers fresh air throughout the year at conditions very near inside conditions. * helps to meet ventilation standard without raising energy cost. * maintains humidity conditions at no additional cost. * allows reduction in system capacity by 30 to 65%.

We are reputed as one amidst the reliable manufacturers and exporters of Heat Recovery Wheels. The use of optimum quality materials and advanced manufacturing techniques makes our Heat Recovery Wheels highly distinguished from others available in the market in terms durability, working and maintenance. Benefits Pre-conditions incoming fresh airEasily integrated/retrofitted into new/existing ventilation systemsDelivers fresh air throughout the year at conditions very near inside conditionsHelps to meet ventilation standard without raising energy costMaintains humidity conditions at no additional costAllows reduction in system capacity by 30 to 65% Wide Range Total energy recovery (Enthalpy) as well as sensible wheelsCustomised Flute height and Rotor depth optionsCassette as well as Rotor optionsStandard and Customized options500 mm to 5000 mm (dia.)Easy retrofit options Working Principle In a typical installation, the wheel is positioned in an Air Handling Unit so that it is divided into two half moon sections. Stale exhaust air is drawn through one half and outdoor air through the other in a counter flow pattern. At the same time, the wheel is rotated. Sensible heat is transferred as the metallic substrate picks up and stores heat from the warmer air stream and gives it up to the cooler one. Latent heat is transferred as the desiccant coating on the metallic substrate adsorbs moisture from the air stream that has the higher humidity ratio and releases the moisture into the air stream that has the lower humidity ratio. Operating Principle Latent heat is transferred as the synthesized metallic substrate condenses moisture from the air stream that has the higher humidity ratio through adsorption by EcoSorb (with a simultaneous release of heat) and releases the moisture through evaporation (and heat pick-up) into the air stream that has the lower humidity ratio.

DRI offers the Highest Recovery Enthalpy Wheels in the world (Aluminum substrate coated with a choice of desiccants). Incorporation of EcoFresh Heat Wheels into the air-conditioning system means more outdoor air at lower energy cost (reduced chiller load).

DRI Energy Recovery Ventilators are equipped with EcoFresh Energy Recovery Wheels (ERW); capable of recovering more than upto 75% of each sensible and latent energy from the stale exhaust air and transferring it to the fresh outside air. The rotating wheel transfers the sensible and latent energy between the counter flowing exhaust and supply air and in the process preconditions (cool heat dehumidify humidify) the fresh air.Energy Recovery Ventilators (ERV) are also known in the industry as Heat Recovery Ventilators HRV, Energy Recovery Units ERU and Heat Recovery Units, HRU.The heart of the Energy Recovery Ventilator is the EcoFresh desiccant coated energy recovery wheel, which slowly rotates between its two sections. In one section, the stale, conditioned air is passed through the wheel , and exhausted to the atmosphere .

Owing to years of experience in the industry, we offer a wide range of Silkey Green Pad Scrubber that are quality assured and have high tensile strength. With the assistance of experienced and dedicated.

We are listed amongst the forefront Evaporative Cooling Pads Manufacturers and Exporters, based in India. Our Evaporative Cooling Pads are highly distinguished from others available in the market on grounds like most economical cooling method, high structural strength, high wettability, extremely low pressure drops and negligibly small edge buildup. Moreover, our Evaporative Cooling Pads are also manufactured as per the specifications and drawings provided by the clients. Evaporative Cooling is the process in which air is cooled by using the heat in the air to evaporate the water from an adjacent surface. A temperature reduction of 10 to 20oC (50-68oF) can be achieved by passing the hot fresh air through the wetted pads. The temperature reduction depends on the dry bulb and wet bulb temperature of the ambient incoming air, the thickness of the pad (in the direction of the air travel), the geometry of the pad, the air velocity through the pad and provided the proper amount of water is used and distributed evenly so that all of the pads are wet through their depth, height and width. The hotter and drier the incoming air, the higher the temperature reduction, after passing through the wetted EcoCool pads. Why EcoCool Evaporative Cooling Pad? Exported to Europe, Australia, Middle East and USAAvailable in standard and customized sizesDurableCompatibleEconomicalAll-India networkTechnical supportNo edge build upGood quality gluingQuick deliveriesWater retentionSamples available on request Ideal For Green houses, mushroom farming, agrihot and floriculturePoultry farms, hatcheries, breeding areas, livestock and dairy farmsCommercial and industrial areasIndustrial Coolers

Available with us is the precisely made Energy Recovery Wheels. The Energy Recovery Wheels recovers total energy (sensible as well as latent), assists in meeting all the requirements of Indoor Air Quality (IAQ), humidity control and energy saving. DRI offers the Highest Recovery Enthalpy Wheels in the world (Aluminum substrate coated with a choice of desiccants). Incorporation of EcoFresh Heat Wheels into the air-conditioning system means more outdoor air at lower energy cost (reduced chiller load). Also Known As Energy Conservation WheelsEnergy Recovery WheelsEnthalpy WheelsSensible WheelsHygroscopic WheelsCondensation WheelsSorption Wheels How Does the EcoFresh Wheel Work? In a typical installation, the wheel is positioned in an Air Handling Unit so that it is divided into two half moon sections. Stale exhaust air is drawn through one half and outdoor air through the other in a counter flow pattern. At the same time, the wheel is rotated. Sensible heat is transferred as the metallic substrate picks up and stores heat from the warmer air stream and gives it up to the cooler one. Latent heat is transferred as the desiccant coating on the metallic substrate adsorbs moisture from the air stream that has the higher humidity ratio and releases the moisture into the air stream that has the lower humidity ratio. Operating Principle Latent heat is transferred as the synthesized metallic substrate condenses moisture from the air stream that has the higher humidity ratio through adsorption by EcoSorb (with a simultaneous release of heat) and releases the moisture through evaporation (and heat pick-up) into the air stream that has the lower humidity ratio. Benefits of EcoFresh Energy Recovery Wheels Pre-conditions incoming fresh airEasily integrated/retrofitted into new/existing ventilation systemsDelivers fresh air throughout the year at conditions very near inside conditionsHelps to meet ventilation standard without raising energy costMaintains humidity conditions at no additional costAllows reduction in system capacity by 30 to 65% Why EcoFresh is your best buy? High Selectivity . . . Almost no cross contamination : EcoFresh Heat Wheels MS 270 use desiccant Molecular Sieve 3� (EcoSorb 300) coated/used on aluminum substrate. This limits the cross contamination to absolute minimum and ensure exclusion of contaminants in the air streams, while transferring water vapor molecules.In-built purge sector eliminates cross contamination : Purge section provides strict separation of air flows, preventing carryover of bacteria, dust and pollutants from exhaust air to supply air. Purge section and labyrinth sealing system limit cross contamination to (-) 04% of the exhaust air concentration by volume. Structural Rigidity State-of-the-art winding technology and adhesives give EcoFresh rotors a high structural strengthEcoFresh is 270 mm deep, which also gives it a higher structural strength Highly Polished Surface Vertical run out less than 1 mm per 1000 mm resulting in extremely low leakage across the seals Innovative manufacturing design Segmented and non-segmented optionsSpoke structure also ensures easy removal of individual wheels sections for cleaning or repair/replacement (in case of segmented plus)Metallic construction, coupled with the robust spoke structure allows for projects to be specified for larger wheel diameters Industry�s Highest Recovery/Performance High Desiccant loading / coatingEqual sensible and latent recovery, thus, comparatively higher sensible and latent recoveryHigher performance, lower pressure drops : 78% nominal at 700 FPM (3.5 m/s) and 0.67" w.c. (170 Pa) pressure dropLaminar airflow due to thin aluminum substrate and uniform desiccant coatingSuperior airflow characteristics allow design for higher velocities and flow rates Non contact labyrinth seal No wear and tearEffective sealingLong lifeBrush seal as option also available Frost Protection Wheel rotation speed control helps to limit frost formation by keeping the exhaust air temperature above the dew point. Wide Range Total energy recovery (Enthalpy) as well as sensible wheelsCustomized Flute height and Rotor depth optionsCassette as well as Rotor optionsStandard and Customized options500 mm to 5000 mm (dia.)Easy retrofit options

DRI Energy Recovery Ventilators are equipped with EcoFresh Energy Recovery Wheels (ERW); capable of recovering more than upto 75% of each sensible and latent energy from the stale exhaust air and transferring it to the fresh outside air. The rotating wheel transfers the sensible and latent energy between the counter flowing exhaust and supply air and in the process preconditions (cool heat dehumidify humidify) the fresh air. Energy Recovery Ventilators (ERV) are also known in the industry as Heat Recovery Ventilators HRV, Energy Recovery Units ERU and Heat Recovery Units, HRU.

We are offering energy recovery ventilators (ervs). dri energy recovery ventilators are equipped with ecofresh energy recovery wheels (erw); capable of recovering more than upto 75% of each sensible and latent energy from the stale exhaust air and transferring it to the fresh outside air. The rotating wheel transfers the sensible and latent energy between the counter flowing exhaust and supply air and in the process preconditions (cool/ heat/ dehumidify/ humidify) the fresh air. energy recovery ventilators (erv) are also known in the industry as heat recovery ventilators hrv, energy recovery units eru and heat recovery units, hru. the ecofresh rotor hrw is the first choice of oems in n.america, japan and europe. the dri erv helps to meet ashrae 62 and other international standards specified ventilation rates without increasing the air conditioning tonnage, saving capital and operating costs considerably. available in various models, dri ervs address the basic requirements of a commercial energy recovery ventilator including - * high energy transfer efficiency (both sensible and latent) (making it the ideal choice in tropical regions as india) * no cross contamination - cross contamination between air streams limited to an absolute minimum with molecular sieve 3å* (ecosorb 300) coated energy recovery wheels. * economical first cost * low operating costs * low maintenance how does the dri energy recovery ventilator work ? the heart of the energy recovery ventilator is the ecofresh desiccant coated energy recovery wheel, which slowly rotates between its two sections. In one section, the stale, conditioned air is passed through the wheel , and exhausted to the atmosphere . During this process , the wheel absorbs sensible and latent energy from the conditioned air, which is used to pre-condition the incoming fresh air in the other section, during the second half of its rotation cycle. Thus, you can have more fresh air at lower energy costs inside your conditioned space. ideal for : residential : apartment complexes, homes, luxury villas light commercial : showrooms, pubs, gyms, spas, beauty saloons, cafeterias commercial : cabins, conference rooms, institutions, labs, speciality clinics, offices, auditoriums, automobile showrooms and other air conditioned environment for human comfort . . . * currently not available in usa, europe & some other countries. Check with us for details.

We are enlisted as one amidst the prime manufacturers of the Energy Recovery Ventilators, based in India. Catering the bulk requirements of the domestic as well as international market, we have also positioned ourselves amongst the leading players. Additionally, features like economical first cost, low operating costs, low maintenance etc. distinguish our Energy Recovery Ventilator from others available in the market. Features High energy transfer efficiency (both sensible and latent) (Making it the ideal choice in tropical regions as India)No cross contamination - Cross contamination between air streams limited to an absolute minimum with molecular sieve 3�* (EcoSorb 300) coated energy recovery wheelsIncorporates High Performance EcoFresh Total Energy Recovery Wheel in Aluminium, coated with Molecular Sieve 3�* for limiting cross contaminationEfficient uptake of both sensible and latent energy each being more than 65%CNC fabricated cabinet type units in sheet steel constructionPowder coated to world-class finish in siemens grey shade/off white leather finishVery low noise levels to meet advanced installation requirementsRemovable and washable Synthetic pre filtersLarge panel opening for easy access to filters and inspection of other componentsProvided with factory set purgeCasing insulated with 19 mm close cells high density insulation to prevent condensation of moisture on exteriors or interiors of the unitProvided with metalic collars for duct connectionCompact models, easy to install, operate and maintainFeather touch brush seals minimize cross contamination & ensure long lifeDRI ERVs are CE certified

We are reputed for providing Dedicated Outdoor Air Systems (DOAS) that are loaded with all the advanced configurations ensuring easy and hassle-free operation. We manufacture Dedicated Outdoor Air Systems using the technology that confirms to the international standards. DRI�s cutting edge R&D has resulted in the development of the ULTIMA DOAS, which allows designers to provide ultimate fresh air ventilation as a single source responsibility.DOAS allows designers the DAQ (Divide and Conquer) approach in which DOAS takes care of the fresh air and internal latent load. The parallel system takes care of the internal sensible load.Unitary System-single point responsibility to provide Dry Cool Fresh Air in an energy efficient mannerConstant Supply Air conditions throughout the yearIntelligent microprocessor controlled DRISMART EMS (Energy Management System)Applications include chilled beams and parallel systems (which separately cater for internal sensible load)Helps obtain substantial LEED points How does the ULTIMA Work? The new DOAS is a unitized Fresh Air Management System integrated through a unique configuration of EcoFresh Heat Wheel, a cooling coil and the innovative G3MA �Passive� desiccant dehumidification wheel (patent pending) and a proprietory controlled embedded logic in the DRISMART EMS. Ultimate for The �Moisture Centric� tropical countriesAchieving both RH control and energy recovery Ideal for Hotels / HospitalityOffice Spaces / IT OfficesCommercial Spaces / MallsHospitals / Health Care FacilitiesSubstaintial Green Building LEED Points forEnergy saving (55%) approxImproved IEQInnovative new technology

DRI’s cutting edge R&D has resulted in the development of the ULTIMA DOAS which allows designers to provide ultimate fresh air ventilation as a single source responsibility. DOAS allows designers the DAQ (Divide and Conquer) approach in which DOAS takes care of the fresh air and internal latUnitary System – single point responsibility to provide Dry Cool Fresh Air in an energy effi cient manner ent load. The parallel system takes care of the internal sensible load.

We are offering arctic cooler, evaporative coolers etc. dri arctic coolers also called evaporative coolers, industrial coolers, commercial coolers, air washers, swamp coolers and industrial ventilation coolers, offer a completely natural way of delivering refreshing cool air. Dri arctic range of evaporative cooling units have been specifically designed for the cooling of industrial and commercial buildings. they are capable of lowering the fresh air dry bulb temperature by 7-12â°c, e.g- the air-off temperature from the evaporative cooler for an outside temperature of 40-43â°c can be as low as 28-30â°c. They allow cool fresh air to be introduced throughout a building and also the stale hot air to be displaced out through openings like windows. Unlike mechanical air-conditioning which continuously cools re-circulated air, arctic coolers introduced 100% cool fresh air into the space. dri arctic coolers use the ecocool evaporative cooling pads. Ecocool pads are highly efficient, consistent in performance over a very long life, self-supporting, highly absorbent and can be easily cleaned. They allow higher cooling with lower air volume and are over 80% efficient. 10 standard models available: 6800 cmh (4000 cfm) to 170000 cmh (100000 cfm) ideal for : commercial facilities like * office complexes * manufacturing facilities * workshops * commercial complexes * restaurants * residential buildings * shopping malls, banquets, marriage halls * textile mills * gymnasiums. And any other hot spot industrial facilities like * poultry * green house * tea manufacturing units * textile processing * additional benefits a reduction in temperature in the work place creates the obvious benefits of improved staff morale, increased productivity and a reduction in absenteeism: evaporative cooling can provide additional benefits : * an environmentally friendly solution - evaporation is a natural process. * eliminates odors and stale air instead of re-circulating them. * money saving - running costs up to 90% less than a mechanical air conditioning system * doors and windows can remain open with no detrimental effect on the efficiency or operating cost. * provides a natural environment and improves air quality

We are reckoned as one of the preeminent Manufacturers and Exporters of Arctic Coolers, also called Evaporative Coolers, Swamp Coolers and Industrial Ventilation Coolers. The unmatched quality and unsurpassable performance of delivering cool & refreshing air have made the Arctic Coolers highly demanded in the market. The Arctic Coolers, offered by us, comply with the international standards thus, are best suited for cooling applications for industrial and commercial buildings. Technical Specifications Capable of lowering the fresh air dry bulb temperature by 7-12oC, e.g- the air-off temperature from the evaporative cooler for an outside temperature of 40-43oC can be as low as 28-30oCIntroduce cool fresh air throughout a building and stale hot air out through openings like windowsArctic coolers introduced 100% cool fresh air into the space, unlike mechanical air-conditioning which continuously cools re-circulated airDRI Arctic Coolers use the EcoCool Evaporative Cooling PadsEcoCool pads are highly efficient, consistent in performance over a very long life, self-supporting, highly absorbent and can be easily cleanedThey allow higher cooling with lower air volume and are over 80% efficient 10 Standard Models Available : 6800 CMH (4000 CFM) to 170000 CMH (100000 CFM) Ideal for Commercial Facilities LikeManufacturing FacilitiesOffice ComplexesCommercial ComplexesWorkshopsTextile MillsGymnasiumsResidential BuildingsShopping Malls, Banquets, Marriage HallsRestaurantsIndustrial Facilities LikePoultryTextile ProcessingTea Manufacturing UnitsGreen House A reduction in temperature in the work place creates the obvious benefits of improved staff morale, increased productivity and a reduction in absenteeism: evaporative cooling can provide additional benefits :An Environmentally friendly solution - evaporation is a natural processDoors and windows can remain open with no detrimental effect on the efficiency or operating costEliminates odors and stale air instead of re-circulating themProvides a natural environment and improves air qualityMoney saving - running costs up to 90% less than a mechanical air conditioning system Evaporative Cooling Concept : As the name implies, evaporative cooling works by evaporating water into the air stream. This principle is best illustrated in a personal way by chilling effect that you feel when you come out of a swimming pool and a breeze blows across your body! The chilling effect is caused by the evaporation process of the water drying quickly from your body. The same thing happens when you sweat. A �cool breeze� is just air flowing over your body evaporating the sweat. It is nature�s way of keeping us cool during hot weather or physical exertion. Evaporative cooling is the use of this evaporation process to cool the air passing through a wetted cooling media. The cooling media could be as simple as a wet cloth. In fact, this process has been used for hundreds (if not thousands) of years. Hanging a wet cloth over an open window cools the air passing through the cloth. In technical terms, temperature is measured in two (2) important ways that relate to evaporative cooling. These are �dry bulb� and �wet bulb� temperatures expressed in degrees Fahrenheit or Celsius. There are several other measurements that reflect the amount of moisture in the air. These are �dewpoint�, �grains of moisture per pound of dry air� and �pounds of moisture per pound of dry air�, �absolute humidity� and �relative humidity�. The following brief explanation of these measurements will help in the understanding of this process. Dry Bulb : The ambient (surrounding air) temperature taken with a thermometer. Wet Bulb : The lowest temperature level of the air that can be reached by evaporatively cooling the air. Wet Bulb Depression : The difference between the Dry Bulb and Wet Bulb temperatures. I.E. if Dry Bulb is 100 degrees (f) and the Wet Bulb is 70 degrees (f), the Web Bulb Depression is 30 degrees (f). The Wet Bulb Depression depends upon the efficiency of the cooling media and depth of cooling media used. Cooling Efficiency : The percent of the temperature drop across the media compared to the Wet Bulb Depression. I.E. if the Wet Bulb Depression is 30 degrees (f) (as in the above example) and the actual temperature drop measured across the cooling media is 27 degrees (f), the cooling efficiency of the media is 90%. (27/30 = .90). The cooling efficiency is also referred to as �Saturation Efficiency� because it refers to the amount of moisture that is packed into the air. 100% Saturation Efficiency would indicate a temperature drop of 30 degrees (f) in the above example of wet bulb depression. Dewpoint : The temperature at which moisture begins to form on a slick surface indicating 100% saturation of the air with moisture. That is how the dew gets on the grass in the morning. The dry bulb air temperature drops to the wet bulb temperature level. Grains of moisture per pound of dry air : A method of measuring actual water vapor (moisture) in a pound of dry air, Most often referred to as �humidity ratio�. I.E. 50 grains of moisture at 100 degrees (f) equals 12% relative humidity and 70 degrees (f) wet bulb at sea level. Pounds of moisture per pound of dry air : Same as grains except weight of water vapor (moisture) is expressed in pounds. In same example above, the pounds of moisture would equal .009 # per pound of dry air. Absolute Humidity : Actual measurement of water vapor in the air. Relative Humidity : The percent of moisture in the air compared to the amount of moisture the air could contain. This is the most common reading to be reported in the weather reports. The report of �100 degrees and 12% relative humidity (RH)� is the same as all the above examples. Using the analogy of a glass half filled with water means the glass is 50% full. It could hold an additional 50% at which point it would start to overflow if more water was added. Evaporation Rate : The rate at which water is absorbed into the air passing through the cooling media. For practical purposes, this rate is measured in gallons of water per hour (or minute). Cooling Media : The Evaporative Cooling Pad (ECP), made of cellulose paper is engineered from cross-sectional specially treated flute media capable of absorbing and retaining water to provide the maximum cooling efficiencies. The cellulose media is treated with stiffening and rot-resisting agents to increase its useful life. The geometry of the cellulose media provides cooling without any water carryover as long as the air velocity through the pads is less than the recommended maximum. The most efficient media is EcoCool Evaporative Cooling Media. The EcoCool ECP media is treated with anti-rot and regidifying resins. The media is cross-corrugated to maximize the mixing of air & water. Saturation effectiveness ranging from 60 to 98% can be achieved depending upon air velocity and depth of the cooling pad.

Evaporative Cooling is the process in which air is cooled by using the heat in the air to evaporate the water from an adjacent surface. A temperature reduction of 10 to 20°C (50-68°F) can be achieved by passing the hot fresh air through the wetted pads. The hotter and drier the incoming air, the higher the temperature reduction, after passing through the wetted EcoCool pads.

Leveraging upon our well-developed manufacturing unit, we are actively involved in the production & distribution of Active Dehumidification Wheels. The DRI's EcoDry Rotors and Cassettes are recognized for excellent performance, durability & user friendliness. We provide the Active Dehumidification Wheels to the clients at the most competitive price. Details Metal silicate synthesized on inorganic fiber substrate (net organics less than 2%)Customized depth and diameter to meet specific requirementsAll EcoDry G3 series rotors allow for a very high moisture removal over a vast range of inlet conditionsThe rotors are maintenance free and there is no deliquescence, and hence no special storage needsRotors can simply be cleaned by blowing air or even washed with waterThe rotors are composed of stable, chemically inert inorganic material and offer excellent resistance to most chemicalsHigh Mechanical strengthThe rotors can be reactivated using electrical heat, steam, hot water, natural gas, LPG, or thermic fluid heatingThe rotors neither burns nor supports combustionIntegral long life bearingsRotor has perimeter flanges as standard