Heat pump
Eco-smart heat pump
... Esta dissertação focou-se principalmente no desenvolvimento e conceção de um sistema de controlo sem fios para ser integrado num sistema de climatização baseado em Bomba de Calor, de nome “Eco-Smart Heat ...
122
Energy and exergy analysis of heat pump using R744/R32 refrigerant mixture
... The heat pump cycle with the new refrigerant mixture R744/R32 is shown in ...the heat pump system with R744/R32 are evaluated based on thermody- namic cycle analysis methods, steady flow ...
6
Theoretical study of heat pump system using CO2/dimethylether as refrigerant
... tems for water heating and space heating [13, 14]. Then it is essential to confirm which com- position of mixture is optimum, or at least appropriate, for a certain heat pump application. Based on the ...
8
Ground Source Heat Pump in Heating System with Electronics Monitoring
... coupled heat pump in heating/ system. The borehole heat exchangers – which are 150 m long - are filled with a mixture of water and ethilene glycol called ...for: heat pump, circulation ...
4
Experimental comparison between R409A and R437A performance in a heat pump unit
... Abstract: This paper reports an experimental comparison between the use of the refrigerants R409A and R437A in a heat pump unit designed and developed to work with R12. Although the use of both refrigerants ...
15
Advective Heat Transport in an Unconfined Aquifer Induced by the Field Injection of an Open-Loop Groundwater Heat Pump
... Analysis of those data clearly highlights three phases (Fig. 2). The phase 1 (February-May) corresponds to the period when the plant had not yet started. The T in the P4 and S2 is constant around 15°C. The relative ...
7
Geothermal heat pump system assisted by geothermal hot spring
... usage, two underground mines, a cold mine and a hot mine, would be identified and utilized. Cold water stored in the cold mine would be used in summer, and warm water stored in the hot mine would be used in winter to ...
10
ENERGY SUPPLY OF COMMERTIAL GREENHOUSE WITH THE GAS DRIVEN HEAT PUMP part II
... of heat exchanger for utilization of heat of flue gases with vapor source is ...of heat pump and compensation of pulsation of temperature of flue gases and pressure of ...of heat ...
12
Theoretical energy and exergy analyses of solar assisted heat pump space heating system
... expanded heat pump space heating system using a working fluid R410A is theoretically investigated with the simulation ...assisted heat pump space heating system with reasonable ...assisted ...
11
Performance analysis and optimization for an endoreversible Carnot heat pump cycle with finite speed of the piston
... Carnot heat pump cycle with finite speed of the piston is investigated by using finite time ...Carnot heat pump without consideration of the finite speed of the ...
8
Advanced Fuzzy Logic Heat Pump Controller
... the heat source, below this point additional heat is ...early heat pump systems augmented the reversed-refrigerant cycle heating with resistance electrical heating coils in the air ...
89
Experimental Investigations of Heat Pump for Domestic and Light Commercial Market.
... A heat pump is a device which pumps heat from a low temperature source to a high temperature sink, with the help of an external source of energy. Improving living standard and globalization is ...
12
HEAT PUMP FOR THERMAL POWER PRODUCTION IN DAIRY FARM
... water-water heat pumping for simultaneous cold and heat ...three heat-pump prototypes designed for dairy farms, in both laboratory and field ...
13
Multifunctional Heat Pump Installation for Dairy Plants
... dioxide heat pump in pasteurization and cooling installation for milk and in installations for preparing of hot and "icy" ...additional heat exchangers and of their connection to the main ...
6
Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers
... Abstract. The problem of coordination of the values of the refrigerant flow through the evaporators and gas coolers of the heat pump for the simultaneous production of heat and cold is studied. The ...
4
Advanced Fuzzy Logic Heat-Pump Controller
... of Heat-Pump systems equipments has increased significantly mainly due to their environmental benefits and ...for heat pumps is still emerging, the search for maximum efficiency means that the ...
94
Minimum energy requirement of an endoreversible desalination system of sea water
... endoreversible heat pumps and the power outputs produced by the endoreversible heat engines when the recovery ratio varies with given pure water ...endoreversible heat pump is a constant when ...
16
Energetic and exergetic analyses of carbon dioxide transcritical refrigeration systems for hot climates
... Sarkar et al. [19] discussed an exergy analysis for transcritical CO 2 heat pump systems with focus on the heat transfer and fluid flow effects. The temperature of the environment is as- sumed to be ...
10
Braz. J. Chem. Eng. vol.24 número3
... a heat pump at the top of the ...compression heat pump and a heat pump that flashes the bottom product in the ...compression heat pump was used as the proposed ...
9
Int. braz j urol. vol.37 número6
... tions, including ED. Coronary artery bypass graft- ing (CABG) is mainly performed for patients who cannot be treated medically or by stent placement. In the last decade, off-pump choice is successfully performed ...
6