Abstract
In passive solar greenhouses, the solar energy obtained by the wall cannot be used efficiently for heating the indoor environment, due to a thermal-stable layer inside the wall, which is caused by the limitation in heat transfer properties of building materials. In order to solve this problem, a new system combining an active–passive triple phase change material wall (APTPCMW) and solar concentrators is proposed and introduced in this paper. To investigate the active heat storage performance of APTPCMW, an experiment is designed and carried out. From the experiment, the significant contribution of the new proposed system to improving the heat storage capacity of the middle layer of APTPCMW has been confirmed. Additionally, factors, namely, the gap between air tunnels, the flow direction of heated air, the temperature and velocity of the supply air, have been identified to have influence on the active heat storage performance of APTPCMW. For real applications, optimum operational conditions of APTPCMW have also been identified from the experiment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.