THE USE OF THERMAL ENERGY OF VENTILATION AND HEATING SYSTEMS IN LIVESTOCK PREMISES

Abstract

In order to save energy resources when managing microclimate in livestock premises, installations and systems based on renewable energy sources are being developed, in particular, regenerative heat exchangers made using heat pipes. Among the well-known designs of heat exchangers using heat pipes, static designs of heat exchangers using heat pipes have become widespread, since they do not have moving parts, their warranty life is 15-20 years. They are easy to manufacture, have a higher thermal and energy efficiency than heat exchangers with intermediate operating fluid, can be used for both heating and cooling without changing their design. (Research purpose) The research purpose is analyzing the use of heat pipes (thermosiphons) in heat recovery plants of agricultural technological processes and developing a heat exchanger circuit using heat pipes with a thermoelectric heat pump. (Materials and methods) Patent search has been made using the websites of the Eurasian Patent Organization, the World Intellectual Property Organization, Rospatent and Google patents. (Results and discussion) The article presents the analysis of the use of heat pipes (thermosiphons) in heat recovery plants of technological processes of agricultural production. The article presents the developed functional and technological schemes of a heat exchanger using heat pipes for livestock premises. The use of a thermoelectric heat pump for additional heating of the supply air was justified in order to overcome freezing of the surface of the heat exchanger instead of using the electric heater. Smooth-walled gravitational heat pipes (thermosiphons) are the most promising in agriculture. (Conclusions) The process of heat utilization from the removed ventilation air is effectively carried out using a regenerative heat exchanger with heat pipes. The usage of thermal energy from the air removed from the room is possible using the proposed design of a heat exchanger on heat pipes with a thermoelectric heat pump.