ПЕРСПЕКТИВИ ЗАСТОСУВАННЯ ТЕРМОЕЛЕКТРИЧНИХ ТЕПЛОВИХ НАСОСІВ У НИЗЬКОТЕМПЕРАТУРНИХ СИСТЕМАХ ЦЕНТРАЛІЗОВАНОГО ТЕПЛОПОСТАЧАННЯ

• Дата: 2025
• Автор: Lobunets , Yu.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2025
• Теми: district heating; low-temperature heating; thermoelectric heat pump.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/589
• Назва журналу: Vidnovluvana energetika

The aim of this work is to analyze the potential for the effective application of thermoelectric heat pumps in district heating systems. The need to improve the characteristics of heat pumps for heating, ventilation, and air-conditioning systems in the municipal sector is driven by plans to transition, in the near future, to low-temperature district heating systems as a component of the energy sector’s decarbonization strategy. The history and current state of district heating systems are reviewed, demonstrating that the implementation of heat pumps (HPs) is a fundamental factor supporting the ongoing trend toward lowering distribution temperatures of heat carriers in modern heating systems. The technical characteristics of heat-pump equipment will largely determine the efficiency of future heating systems, prompting the search for more advanced thermal energy conversion technologies. The thermoelectric method of energy conversion is one such technology, showing promising prospects for application in these systems due to its capability to provide efficient HP thermal configurations. A schematic design of a thermoelectric heat pump implementing a reverse Lorenz thermodynamic cycle with internal heat regeneration is proposed. An analysis of the characteristics of this configuration demonstrates that its efficiency may exceed that of modern compression-type HPs. A preliminary assessment of the normalized cost of thermal energy in such a system confirms the competitiveness of this technology, supporting the conclusion that further theoretical and experimental research aimed at optimizing the characteristics of the proposed configuration is justified.