Open AccessTWO-STAGE HEAT PUMPS FOR ENERGY SAVING TECHNOLOGIES
Author(s) -
Alla Denysova,
G. V. Luzhanska,
Imre Bodnár,
Anastasiia Sergeevna Denysova
Publication year - 2017
Publication title -
holodilʹnaâ tehnika i tehnologiâ
Language(s) - English
Resource type - Journals
eISSN - 2409-6792
pISSN - 0453-8307
DOI - 10.15673/ret.v53i1.539
Subject(s) - heat pump , coefficient of performance , air source heat pumps , hybrid heat , environmental science , gas compressor , renewable heat , petroleum engineering , process engineering , mechanical engineering , engineering , heat exchanger
The problem of energy saving becomes one of the most important in power engineering. It is caused by exhaustion of world reserves in hydrocarbon fuel, such as gas, oil and coal representing sources of traditional heat supply. Conventional sources have essential shortcomings: low power, ecological and economic efficiencies, that can be eliminated by using alternative methods of power supply, like the considered one: low-temperature natural heat of ground waters of on the basis of heat pump installations application. The heat supply system considered provides an effective use of two stages heat pump installation operating as heat source at ground waters during the lowest ambient temperature period. Proposed is a calculation method of heat pump installations on the basis of groundwater energy. Calculated are the values of electric energy consumption by the compressors’ drive, and the heat supply system transformation coefficient µ for a low-potential source of heat from ground waters allowing to estimate high efficiency of two stages heat pump installations.