The Rooms Air Conditioning by Cooling the Conventional Water Tank Using Hot Summer Air and Solar Energy

Abstract

In the present work, an experimental study has been carried out to investigate a method to reduce the water tank temperature and used it in room air condition. The tests were conducted in the hot season (July and August) in Iraq. The results proved that the device succeeded in reducing the water tank temperature to 23℃, which is a low temperature in the summer and kept at this value by continuous work of the device. It was almost constant at the hot afternoon compared to the temperature of the uncooled tank, which reached its temperature at 2:00 pm to about 43℃ and the difference was 46.5%. The dry air temperature of the test room is very close to the temperature of the house room air (30-33) ℃, compared to the ambient temperature (45-50) ℃. Decrease in the relative humidity to (51-45) % for the test room compared with house room (94-90) %. The power consumption of the system is lower than traditional air evaporative cooler in a rate of 67%.

Thermoelectric-Driven Room Air Cooling via a Multi-U Shaped Heat Sink System

“…Containing 20 circular holes with a diameter of 2 mm for water spray to increase water contact with the air and thus increase the evaporation rate. Which results in dragging the latent heat of evaporation from the hot water and rapidly decrease the water temperature[31]. Then cooled water return to the heat exchanger, indoor air conditional split unit (1200 Btu/h, 220 Volt, 40 Watt, 725 m 3 /h and 1250 rpm).…”