Abstract
The paper presents a concept of building a passive heat transport system based on the use of an antigravity thermosyphon with a bubble pump. Such solutions are suggested when the heat source is located above the place of its reception, e.g. in the case of solar collector installations. One of the components of the system is the device forcing the circulation of the heating medium. In the presented system, this process is carried out without the use of additional external sources of energy, such as electricity, to supply the circulating pumps. Such an installation is autonomous, so the risk of failure is diminished. It is also possible to automatically adjust the system to changing operating conditions without the need for additional automation. Other known solutions of this type are not used due to their imperfection. The challenge is to select the right working medium, whose physical properties should on the one hand transmit as much heat as possible, and on the other hand enable the pumping of the heating medium to be performed with low energy consumption. In the opinion of the authors of the paper, it is possible to achieve with the use of two working media in one system: water and a substance with a low boiling point.
Highlights
Rapid technological development spurs the search for new solutions to improve the performance and reliability of equipment
Group C includes closed-loop pulsating heat pipes (CLPHP) where heat can be transferred by natural convection as well as against gravity
When the temperature of the heat source drops below 100°C, negative pressure is created, which compromises the system’s tightness
Summary
Rapid technological development spurs the search for new solutions to improve the performance and reliability of equipment. From the point of view of energy conservation, passive systems (thermosiphons) are preferred because they do not require an external power source (electricity) They are characterized by simple design and high. Some systems feature porous materials to lift the condensate by capillary force In such solutions, heat can be transferred only across small distances (several meters) [5]. A two-phase thermosiphon with a liquid heat exchanger supports passive downward transport of heat across greater distances In this solution, condensate does not have to be lifted. Vast amounts of coolant are needed to fill the entire system, which increases cost and exerts a negative impact on the environment These types of systems are not widely used due to the problems associated with the selection of the optimal working medium. The liquid medium is water, and the second medium is a substance with a low boiling point
Sign-in/Register to view highlights & summary 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.
