Ventilation and cooling characteristics of environmental protection air-conditioning workshop for ventilation and cooling engineering
Compared with traditional mechanical air conditioners, ventilation and cooling projects
have the following characteristics: (1) Low initial investment
<br> Install centralized air conditioners and evaporative air conditioners in the same area. The initial investment of evaporative air conditioners is about 3/5 of traditional mechanical air conditioners; (2) Low power consumption
<br> The energy consumption of the evaporative air conditioning system is about 1/5 of that of traditional mechanical air conditioners, which saves about 80% of electricity; the COP value is about 2.5 to 5 times that of mechanical refrigeration; (3) Fresh air operation, good air quality.
<br> As the straight-through fresh air operation is adopted, the air quality of the supply air is guaranteed, which significantly improves the air quality in the workshop; (4) Large air volume, long air supply, good cooling effect
<br> Adopting centrifugal or axial flow fan, large air volume, high pressure and long distance of air supply. In Guangdong, the unit can generally achieve a cooling effect of 4 ~ 8 ℃ ; (5) High relative humidity
<br> However, compared with mechanical refrigeration air conditioners, the disadvantage of evaporative air conditioners is that the supply air temperature is relatively