Discussion on the Design of Freezing Dehumidification-Based Radiant Air-Conditioning System

Abstract

For the purpose of realizing non-dewfall condition of the radiant panels, low energy consumption and nice comfort of the freezing dehumidification-based radiant air-conditioning system, the design temperature and humidity of the room were figured out according to the mean comfort index of human body during the design. And in order to lower the energy consumption, the necessity of the reasonable load allocation between the dehumidification unit and the radiant unit was discussed by means of the calculation with the quasi heat-humidity-ratio line. As a result, much more precise design parameters were acquired through the approximation calculation. And it was proven to be a good design method by applying these parameters to the design of the reading rooms of the library. In the design example of the reading room, the load ratio between the dehumidification unit and the radiant unit was 48 to 52, and the recirculation air flow rate of the dehumidification unit was not less than 36.8% of the total air rate of the room.

Applicability Research on Evaporative Cooling Technology in Hunan Province

“…Among them, power consumption is 446.7 billion kWh. A variety of research aimed at reducing energy consumption of air conditioning systems are carried out in public buildings [3,4] . However, power consumption of air conditioning systems accounts for about 1/3 of the total city electricity at the summer electricity surge in Hunan province each year.…”

Study on Load Distribution of Temperature and Humidity Independent Control Air-Conditioning System

“…Professor Yin Ping from Hunan University introduced Dedicated Outdoor Air System(Abbreviated as DOAS) proposed by professor Mumma from American in 2001 [2], which had a same principle with THIC system. In recent years, researchers in our country have carried out a lot of researches and engineering practices [3][4][5] around the THIC technology, aiming at gradually solving core problems related to THIC technology and promote it, and they have made obvious progresses.…”