The solar cooling tube and the economic analysis were studied for supplying cooling and heating capacity on the building. The following conclusion could be drown: The refrigerating output of a single solar cooling tube was about 2 W to 13 W varying with the time. And the unit made up by 20 solar cooling tubes could supply about 3.96 MJ cooling capacity and 10.73 MJ heating capacity. The investment of the solar cooling tube combined with average 20m2 building is about 46000 RMB at present price and the fixed number of years necessary for redemption is about 7.5 years.
The thermal vacuum method was used to test the adsorption performance of compound adsorbent. This thermal vacuum method, without vacuum pump, can expel the air of system up to its partial pressure, lower than 2 Pa. the adsorption performance of 13X zeolite and some compound adsorbent were tested by this way. Conclusions can be drawn as following: the adsorption capacity of 13X measured by this way has the less difference (<10%) with the reference. In this experimental system, the compound adsorbent, which has better adsorption performance and mould performance, was used in a solar cooling tube system as adsorbent and the experimental coefficient of performance (COP) of the solar cooling tube can reach about 0.26.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.