|Conţinutul numărului revistei|
|Ultima descărcare din IBN:|
|Căutarea după subiecte |
similare conform CZU
|Heating, ventilation and air conditioning of buildings (51)|
|Pneumatic energy, machinery and tools. Refrigeration (49)|
| SM ISO690:2012|
ШИТ, М.; ЖУРАВЛЕВ, А.А.. Hybrid Carbon Dioxide Heat Pump for the Multifamily Residential Buildings in the Heat Supply System Based on CHP. In: Problemele Energeticii Regionale. 2021, nr. 3(51), pp. 91-98. ISSN 1857-0070.
|Problemele Energeticii Regionale|
|Numărul 3(51) / 2021 / ISSN 1857-0070|
The work is devoted to centralized heat supply systems based on CHP plants and the use with them heat pumps (HP) on carbon dioxide as refrigerant. Heat pumps are used in heat supply systems for buildings and use the heat of the outside air and, at the same time, the heat of the return network water (WWR) as a source of low-grade heat (LHP). The aim of the study is to develop a structural diagram of such a heat pump, where the outside air is heated by a heat exchanger installed in the return water line of the heating system, to develop a hydraulic circuit of a heat pump taking into account the law of regulation of the building heating system, to develop an algorithm for controlling the operating modes of the so-called balancing heat exchanger installed after gas cooler and internal heat exchanger of the heat pump. The most significant results were the hydraulic circuit of the heat pump, the aerodynamic circuit of the air supply path to the heat pump evaporator, the balancing heat exchanger control system, taking into account the requirement to ensure the operation of the control valve in a single-phase flow. The significance of the results obtained consisted in obtaining the dependences between the CO temper-ature graph and the parameters of the thermodynamic cycle of the heat pump, which ensured the opera-tion of the control valve of the heat pump in a single-phase environment.
carbon dioxide heat pump, district heating, automatic control,
pompa de căldură cu dioxid de carbon, încălzire, sistem de control al pompei de căldură, ciclu termodinamic,
тепловой насос на диоксиде углерода, отопление, система управления тепловым насосом, термодинамический цикл
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