| 摘要 |
<p>Evaporative cooling can be successfully used anywhere the wet bulb temperature is lower than the dry bulb which is almost everywhere. Evaporative coolers provide cool air by forcing hot dry air over a wetted pad. The water in the pad evaporates, removing heat from the air while adding moisture. Although the concept has been used in residential coolers for decades, technology advances have made evaporative cooling a viable alternative to conventional cooling in commercial buildings and in other areas. Evaporative cooling has a number of applications in the residential and light commercial markets. Direct evaporative cooling is primarily used in very hot and dry regions and residential markets. The current approach is economical, effective, environmentally friendly and healthy. It reduces power consumption and can reduce energy use by 70%. Increase cooling capacity and life of cooler as it is free from metal parts. Noiseless as it is free from vibration. No special skills are requires to operate and therefore is most suitable for any type of user. It can be made from locally available PVC pipes and materials. Highly efficient evaporative cooling systems, less expensive to install and operate. It can be easily assemble and maintained. Totally foldable require less space for storage when not in use or after the season. It is suitable for offices due to its compactness and low level of noise. Does not require any structure for mounting, can be place anywhere either inside the room or outside the window. Compared to refrigerated air conditioning, the result is cheaper, fresher and completely natural air.</p> |
