The effects of relative humidity of air-conditioned environments on water evaporation
Date Issued
2010
Date
2010
Author(s)
Cheng, Hsin-Yu
Abstract
The relative humidity of Taiwan is between 70-90% throughout the year. People living in Taiwan are used to a 50-70% humidity. However, the relative humidity of air-conditioning facilities are usually under 50%, which are not suitable for Taiwan’s climate. The objective of this study is to provide experimental data to explain the flaws of the regulations of Taiwan’s air-conditioning systems.
Put papaya, kiwi, and apple into the temperature and humidity chamber to simulate the condition of people staying in air-conditioned space. Then investigate the amount and rate of water loss of the fruits under various temperature and relative humidity.
The experimental results show that lager surface area, higher temperature and lower relative humidity lead to more and faster water loss. When the relative humidity increases from 30% to 45%, energy consumption can be reduced by 13.67% under 25℃ and 24.80% under 30℃; when the relative humidity increases from 45% to 70%, energy consumption can be reduced by 14.96% under 25℃ and 22.27% under 30℃. Therefore, set relative humidity for a higher value can not only improve thermal comfort but also save a lot of energy.
Subjects
Relative humidity
Air-conditioning system
Water evaporation
Thermal comfort
Energy saving
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-99-R97522303-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):e96bb941090f57d98a393d60a61c870b