In extremely hot conditions regulating the temperature is extremely important if not lifesaving. Air coolers date back to ancient civilizations. In ancient Egypt, slaves used water jars with large palm fronds to fan and cool the rooms of their masters. This seems to have been a common practice of cooling houses in ancient civilizations.
A development of this form of cooling was the use of porous water pots that were built within the building’s walls, water from these pots would seep into the walls and keep the rooms cool during the heat of the day. This was the precursor to modern-day evaporative cooling systems.
Air coolers are heat exchange systems that soak up heat and release cool air. Modern air coolers are used to cool or dehumidify the air. Using brine water or many other coolants that run through copper or steel piping fitted on aluminum fins that dissipate heat.
Evaporative air coolers are the commonest cooling systems. Borrowing heavily from their ancient precursors, they absorb heat from their surroundings which heats and causes the water or coolant within to evaporate, releasing cooler humid vapor that causes a significant drop in the room’s temperature. In hot and dry conditions Evaporative coolers make buildings more comfortable.
There are two types of air cooling systems, dry air cooling systems which use vapor compression refrigeration cycles and evaporative cooling systems which use water or coolants are more passive, they consume less energy and are environmentally friendly. There are three types of Evaporative cooling systems:
1. Direct evaporative air coolers.
2. Indirect evaporative air coolers.
3. Mechanical direct evaporative air coolers.
Direct evaporative air coolers use latent heat of evaporation in an open circuit to lower the temperature and increase humidity, the hot air heats up water in the air cooler, the warm dry air is changed to cool moist air cooling the house.
Indirect evaporative air coolers use a closed circuit, direct evaporative cooling with heat exchanging mechanism to transfer coolant to the air supply. The cool air is pumped into the room as a moist air stream is released to the outside with the use of a wet-bulb regulator.
Mechanical direct evaporative air coolers consist of a water pump, centrifugal fan, and a membrane. They use fans to draw air through a wet membrane pad.
The pump sprays water on the membrane pad which has a large evaporative surface, the water continuously drips down into the membrane the cooled air is released into the room, excess water is collected in a pan at the bottom of the membrane and recirculated back to the top.
Evaporative air coolers are best suited in hot areas with low humidity. Here are several jaw-dropping uses of air coolers:
1. Industrial plants
Industrial units can operate at their optimum when in peak conditions, and performing under favorable conditions for the workers. Industrial air coolers alleviate and decrease humidity and heat making creating a conducive atmosphere for both machine and man. Industries located in hot climates have to install and maintain powerful air coolers to create a comfortable environment.
2. Commercial kitchens
The heat in commercial kitchens can be unbearable, air coolers help to get outside air to circulate into the kitchen. Air coolers help in odor leak, negative air pressure back drafting, air quality, etc. evaporative cooling systems make up an efficient air unit, that provides a steady supply of fresh outside air, improving air quality, temperature control, and odor control. Commercial kitchens benefit from evaporative cooling systems making them safer, and enjoyable working places.
Laundries generate a great amount of heat, this heat can be stifling during summer but can be recovered and recirculated in winter. evaporative air coolers in a properly planned laundry service will help keep the laundry’s temperature at normal levels in addition to providing free energy recovered from the heat generated.
4. Dry Cleaners
Dry cleaners use spot cooling air coolers to cool their facilities, some dry cleaners install evaporative air coolers depending on the size of the facility. The air coolers blow directly on employees and individual work stations, creating a conducive work environment.
Greenhouses need a controlled environment for healthy crop production. Excessive sunlight increases temperature and humidity. Plants need temperatures ranging between 70 and 80 degrees to grow optimally, they need controlling relative humidity. Evaporative air coolers with pads discharge use pressure fans to draw air into the greenhouse, displacing bad air in the greenhouse, vents must be provided to allow air circulation.
6. Mist Cooling
Mist cooling can also be used to control greenhouses humidity and temperature; evaporative cooling systems spray tiny droplets of well-filtered water in the greenhouse.
7. Spot cooling – Loading docks
Spot cooling refers to portable air coolers used to control temperatures in overheated areas. Of large spaces. Spot coolers are placed in areas that require stable temperatures. Loading docks can get extremely hot, spot coolers are an excellent air cooling solution.
8. Spot cooling- data centers
Data centers have computers, servers in a confined space. Spot air coolers are compact and portable and can be moved to be placed in strategic positions to cool the equipment and ensure there is the temperature is stable.
9. Spot cooling – Leased Office Spaces
Leased offices may not call for heavy investment in air conditioning. During summer they may get hot and cramped, spot cooling air coolers will ensure the environment is cool and comfortable keeping the employees happy.
10. Social gatherings
Tent gatherings, weddings, conferences or meetings can get uncomfortably hot, evaporative air coolers are the best cooling solution especially in hot and dry climates. The evaporative fan blows moist and water in the atmosphere lowering the temperature and increasing humidity.
11. Theatre and movie sets
Theater, television studios, music shoots and still shoots involving a large crew, the sets can get intolerably hot climates or during the summer. Air coolers keep crew cooled and guarantee minimal disruption during shooting.
12. Retail outlets
Retail outlets may sometimes become stuffy and hot, air conditioning may prove too costly to install and maintain. Air coolers will not only keep the premises cooled but will keep perishable products fresher for longer.
Restaurants have kitchens and during peak time may become uncomfortably hot for the customers, evaporative air coolers are an affordable way of cooling the premises and regulating humidity.
Churches need a comfortable environment for worshippers, air coolers are a cost-effective way of keeping cool and saving on energy costs. Air coolers that have advanced HVAC controls have the ability to modulate and match temperature variables
Like churches schools too cannot afford to run high electricity and maintenance costs of air conditioning. Air coolers are therefore and affordable alternative that will keep both learners and teachers relaxed and in the right frame of mind to concentrate on their studies.
16. Event hall
Exhibitions and event halls are temporary venues that may have large crowds and do not require expensive air conditioning. Air coolers are a viable option for temperature controls because they are easy to install in strategic positions to keep the room cooled.
17. Homes and other spaces
Home and other dwelling places need proper ventilation and an effective cooling system that will not overtax the homeowners. Air coolers placed in the right position for example near the window will keep the room cool and humidified.
Health facilities hospitals, nursing homes, laboratories, etc. are crucial places that the right temperature must be maintained at all times. The right air cooler will keep the patients, machines, and equipment cooled without causing drafts and air loss.
19. Medical Equipment
Medical equipment is very delicate and expensive a hot environment will cause stress to their functionality. Spot air coolers are mostly hand in circulating around the premises
20. Server Rooms
Computers and communication equipment run the risk of crashing if under extremely hot conditions. Air coolers are used to cool the room and directly cool the equipment under hot conditions.
21. Industrial warehouses.
Industrial air coolers are used to provide large scale cooling. They provide effective cooling solutions to warehouses factories and huge indoor spaces. They are cost-efficient and humidify the premises in dry conditions.
22. Call centers.
Data centers require intensive power demands, for air conditioning, air coolers are a viable energy-efficient solution for most call centers. The most efficient cooling system is the use of a chiller plant that chills water evaporated by the air coolers.
23. Heat sensitive equipment(Electronics)
High sensitive equipment generates excess heat and requires careful thermal management. To guarantee their reliability, and proper function forced air systems air coolers are amongst the best ways of keeping this equipment cooled.
24. Warehouse Mezzanine Floors
Many warehouses that build mezzanine floors for offices etc. may not have adequate access to outside air, evaporative air coolers offer a balanced cooling system that easy to maintain and affordable.
Factories cannot allow outside air into the facility because of the risk of dust, insects and other contaminants that may pose a risk to the equipment and the manufacturing process air coolers are therefore the only alternatives to cool the premises and keep the temperature stable.
26. Construction sites
Construction sites may have heat-generating equipment or may need to keep low temperatures.
Air coolers bring air from the outside and pump hot air outside.
27. Indoor Arenas
Indoor arenas for basketball hockey, boxing, and other indoor games need a dedicated cooling system. Air coolers work hard to keep the environment conducive for both fans and players.
Swamp coolers keep Workshops aerated and cooled they maintain effective air circulation, integrated fan the get rid of stale air that continually draws in and circulates fresh cool air.
Garages may sometimes lack windows and adequate ventilation keeping cool during the hot months of the year will require air coolers strategically placed to humidify the garage.
Dogs can get extremely hot and uncomfortable and in some instances may suffer heatstroke. To alleviate this problem a portable air cooler can keep the dog’s kennel cool and comfortable.
31. Poultry farms
Poultry farms use different methods to cool poultry house, evaporative cooling systems help maintain coolness and the right level of humidity this has a positive effect on the chicken increasing egg and meat production.
32. Pig Farms
Pigs are susceptible to heat stress, particularly in warm regions. Ventilation in itself is not the best solution for cooling. Pigs are homoeothermic animals meaning that they have to maintain a core balanced temperature, sows are especially susceptible to heat stress during lactation evaporative air cooling systems are efficient coolers that help maintain regular temperature and humidity
33. Dairy Farms
Extreme heat affects milk production on dairy farms when cows are hot, they lose appetite which affects milk production, cooling the cow barns without stressing the cows is important. Evaporative cooling and mist air coolers are hygienic and effective ways of cooling the barns.
34. Domestic Pets
Domestic pets suffer heat-related discomforts and need to be cooled down. Air coolers installed in the room and their sleeping areas cool down the pet.
35. Livestock farms
Evaporative coolers have many advantages on livestock farms they help maintain a stable temperature for sheep, goats, rabbits, and many other types of livestock farming.
36. Insect control
Grains are susceptible to pest attacks proper aeration helps control pest infestation, dry air, air coolers are air coolers will keep the temperatures silos low and interfere with pests breeding cycles.
37. Odor control
Swamp air coolers will help get rid of bad odor in kitchens or buildings. The pads and water moisture soak up the bad odor over time leaving a fresh room
Specially designed air coolers can be used to cool down animals in zoos who may not have many options of cooling themselves down unlike if they were in the wild.
39. Hospitals and Patient Care
Hospitals are sensitive facilities that must maintain the correct environment to help fast recovery, evaporative air coolers allow efficiently to regulate hospital wards while minimizing airborne infections.
40. Automotive Manufacturing
Automotive manufacturing plants can be hot and polluted. Evaporative air coolers help lower the temperatures and control the level of pollution. Dust particles and other health hazards are kept to a minimum.
41. Educational Facilities
Educational facilities like schools, colleges, libraries, and other learning facilities, have students crowding in confined spaces. This may cause discomfort and impact negatively the students learning abilities evaporative cooling will help cool down the learning rooms, halls or auditoriums.
42. Offices and Call Centers
Offices and call centers must maintain optimum temperatures for the comfort of the staff. The air needs to be clean and fresh. Evaporative cooling systems help stabilize the temperature making the office more comfortable and staff more productive.
43. Cold Storage
Cold storages require consistent air and humidity regulation to keep food from perishing. Evaporative air coolers will draw clean air from outside and help control the humidity.
44. Cooling farm produce
Horticultural produce like flowers and fruits need low constant temperatures to remain fresh for longer. Air Coolers are a good way of preserving them and helping control physiological changes to the produce. Evaporative air coolers have the potential to extend the shelf life of horticultural produce.
External Air coolers help draw air from the outside, they filter the air and blow it across bread trays, this temperature regulation guarantees well-baked tasty loaves.
Furnaces need air blown into them to keep up the heat, this dries the climate. Air coolers help circulate air in foundries and furnaces while keeping up the level of humidity.
47. Induction heaters
Induction heaters are heat exchangers and need air coolers to maintain optimum performance. Chillers installed with open evaporative towers will exchange the heat and allow the free movement of cooled air helping reduce power costs.
48. Welding equipment
Welding operations need efficient cooling systems, air cooling chillers are an efficient way of cooling welding operations they help maintain ambient air temperatures.
49. Refineries Heat Exchangers
Air-cooled heat exchangers are air coolers used in refineries and petrochemical plants, gas plants and compressor stations. They help to cool and condense machinery and equipment.
50. CAT scanners
CAT scanners have many moving parts and need to regulate the temperature of parts that heat up. Air-cooled systems help circulate clean air and keep ambient air through the fans.
51. Hydraulic equipment
Excessive heat buildup in hydraulic systems can cause fluid decomposition, and damage seals, bearings and other operating components. Hydraulic air coolers help keep low temperatures and optimum performance of the hydraulic systems.
Condensers help remove redundant heat generated by technology in various industrial plants. Air-cooled condensers are used to remove low potential heat during steam condensation cooling down the atmospheric air. Forced air flow is provided by a propellers fan.
53. Air compressors
Air compressors are designed to remove compression heat from the equipment, air coolers help draw air out of the compressor.
54. Vacuum pumps
Vacuum pumps are air coolers that are used to remove the air and moisture from the refrigeration system.
55. X-ray equipment
X-ray machines are used in a variety of ways; they can get pretty heated up. Air coolers help keep them in their optimum operating condition
56. Restaurant Kitchens
Restaurant kitchens trap heat and need an efficient way to cool without creating a draft. Swamp Evaporative air coolers cool and humidify the kitchens.
57. Sandwich Shops
Sandwich shops need portable air coolers that will provide spot cooling solutions.
Delis can be hot and cramped Spot air coolers help maintain the temperature at acceptable levels.
59. Convenience Stores,
Convenience stores need to have fresh air and the right temperature at all times air coolers help regulate temperatures in convenience stores.
60. Healthcare Facilities
Healthcare facilities like nursing homes must maintain ambient air and need clean cooling solutions to maintain proper indoor temperatures without the risk of pollutants. Evaporative air coolers help maintain a perfect environment.
Supermarkets have a lot of human traffic and need constant temperature regulation air coolers to help keep them cooled and the environment humid
Cafeterias need controlled air cooling system evaporative coolers to help maintain balanced airflow.
Air coolers work really well in cooling Hotel rooms and lobbies without wasting too much energy. They help keep power bills low.
Motels need to keep their rooms cooled especially in hot regions. Air coolers keep rooms cool and humid.
65. Fast Food Restaurant Chains.
Fast food restaurants chains have to need a cooling system that extracts bad air, smoke, and effluents generated during cooking. HVAC air coolers will do all of the above in addition to controlling temperature and humidity.
66. Sterilizers and autoclaves
Autoclaves are used for applications that need constant pressure and a maintained temperature air cooler help keep them functioning optimally.
67. Industrial Boilers
Industrial boilers generate steam for industrial heating and humidification applications dry air coolers helps keep the premises cooled and comfortable for employees.
Burners are heating devices that use fuel gas to heat up different applications. Air coolers will help maintain an environmentally friendly atmosphere.
69. Compressed air and vortex cooling tubes
Industrial chillers use refrigeration cycles to provide a constant stream of coolant for manufacturing and laboratories.
Deaerators help remove dissolved corrosive gases from boiler feedwater. they heat incoming makeup water and condense the temperature, air coolers help keep the environment refreshing.
71. Cooling Towers
Cooling towers are water recirculation devices that use fans to draw air and cool water by evaporation.
72. Cooling tunnels
Cooling tunnels control temperatures used together with air coolers they regulate the ambiance of the premises.
Crucibles are used to heat up and melt material at high temperatures. Evaporative air coolers help maintain comfortable temperatures.
74. Cryogenic Equipment
Cryogenic equipment produces low-temperature material and needs temperature regulated atmosphere, air coolers keep the premises aerated and at low temperatures.
75. Cryostats and Dewars
Cryostats and dewars are used to keep sensors and to store material samples at extremely low temperatures. Air coolers help keep the environment chilled.
Air coolers are necessary for these and many more applications they are an integrated part of our homes, industrial processes, manufacturing processes, preservation process, and food production processes.