首页|Experimental investigation on heating performance of a gas engine-driven heat pump system with R410A
Experimental investigation on heating performance of a gas engine-driven heat pump system with R410A
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NSTL
Elsevier
In this study, the performance characteristics of a gas engine-driven heat pump (GHP) system for heating applications were experimentally investigated。 A novel energy-efficient air-source GHP experimental platform was designed based on scroll compressors with R410A。 The changes in heating capacity (Q_h), gas consumption power (P_(gas)), compressor power (P_(comp)), primary energy ratio (PER), and coefficient of performance (COP) were obtained under varying conditions of condenser water flow rate G_w (6。10-15。25 m~3/h), water inlet temperature t_(w,in) (24。0-44。2℃), engine speed N_(eng) (1200-2400 r/min), and ambient air temperature T_(amb) (-15-7℃)。 The performances of the four heating modes (mode-1 to mode-4) were compared at an ambient air temperature of -20℃。 The results showed that t_(w,in), N_(eng), and T_(amb) had significant influences on heating performance, whereas G_w had a slight impact。 Compared with other heating modes, mode-4, wherein the recovered waste heat was only transferred to the heating water, could improve the heating performance of the GHP system。 In the mode-4 heating experiments, PER was between 0。981 and 2。155, the rate of waste heat recovery was between 49。12% and 77。70%, and the engine thermal efficiency was between 27。02% and 33。24%。
Gas engine-driven heat pumpHeating performanceWaste heat recoveryPrimary energy ratioR410ADistributed energy system