Abstract
After reviewing passive systems for downward transprot of heat, this article presents an approximate mathematical model for one particular system in which refrigerant that is evaporated in a solar collector transports heat to a condenser located at some arbitrary elevation below the collector. The vapor pressure lifts the liquid from the condenser to an accumulator above the collector, from which it periodically flows into the collector. It is shown that the maximum energy delivery to the condenser can occur when the accumulator loses a specified amount of energy to the environment. Use of one of the ordinary refrigerants as the working fluid should be appropriate for passive space- or water-heating systems in which the collector can be several meters above the condenser.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
