Results 41 to 50 of about 70,791 (209)
TWO-STAGE HEAT PUMPS FOR ENERGY SAVING TECHNOLOGIES
Holodilʹnaâ Tehnika i Tehnologiâ, 2017 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.
A. E. Denysova +3 more
doaj +1 more source
High-temperature heat pumps: Fundamentals, modelling approaches and applications
EnergyData availability: Data will be made available on request. In March 2023, the European Parliament and Council reached a consensus to increRCiase the binding renewable energy target (RES) to a minimum of 42.5% by 2030, effectively doubling the proportion of RES from the 2020 baseline.
Jouhara, H. +5 more
openaire +4 more sources
Cycle Analysis of Heating and Refrigeration in New Air-source Heat Pump
Zhileng xuebao, 2005 An air source heat pump operating in cascade cycle way was presented. The new-type heat pump can operate not only in a single-stage cycle, but also in a cascade cycle. The operation performance of the heat pump was stimulated.
王林, 陈光明, 陈斌, 王勤
doaj +2 more sources
Zhileng xuebao, 2010 When an air source heat pump water heater runs at higher water temperature,the power input and the discharge temperature of its compressor are high,leading to problems of security and stability,and the significant decrease of the system efficiency.In our
江明旒 +4 more
doaj
Experimental Study on Hot Water System with Two-stage Condensation Heat Pump
Zhileng xuebao, 2010 When an air source heat pump water heater runs at higher water temperature,the power input and the discharge temperature of its compressor are high,leading to problems of security and stability,and the significant decrease of the system efficiency.In our
江明旒 +4 more
doaj
Theoretical study of low-GWP refrigerants in high-temperature heat pump systems [PDF]
, 2023 Dong Zhou +7 more
openalex +1 more source
Zhileng xuebao, 2018 This study develops a set of CO2 transcritical automobile heat pump air-conditioning systems, which adopts a CO2 vehicle electrical compressor, micro-channel heat exchanger, electronic expansion valve and other key components.
Wang Dandong +5 more
doaj
Zhileng xuebaoWinter heating of passenger compartments in electric vehicles relies on vehicle air-conditioning systems， in which the air outlet temperature must be rapidly increased to the set value.
Zhang Tian +6 more
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