Experimental study of gas engine driven air to water heat pump in cooling mode

被引：46

作者：

Elgendy, E. ^{[1
]}

Schmidt, J. ^{[1
]}

机构：

[1] Otto Von Guericke Univ, Fac Proc & Syst Engn, Inst Fluid Dynam & Thermodynam, D-39106 Magdeburg, Germany

来源：

ENERGY | 2010年 / 35卷 / 06期

关键词：

Gas engine heat pump; Cooling mode; R410A; Experimental study; Energy efficiency; SOUTH-AFRICA; ENERGY; SYSTEMS;

D O I：

10.1016/j.energy.2010.02.040

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Nowadays a sustainable development for more efficient use of energy and protection of the environment is of increasing importance. Gas engine heat pumps represent one of the most practicable solutions which offer high energy efficiency and environmentally friendly for heating and cooling applications. In this paper, the performance characteristics of gas engine driven heat pump used in water cooling were investigated experimentally without engine heat recovery. The effects of several important factors (evaporator water inlet temperature, evaporator water volume flow rate, ambient air temperature, and engine speed) on the performance of gas engine driven heat pump were studied in a wide range of operating conditions. The results showed that primary energy ratio of the system increased by 22.5% as evaporator water inlet temperature increased from 13 degrees C to 24 degrees C. On the other hand, varying of engine speed from 1300 rpm to 1750 rpm led to decrease in system primary energy ratio by 13%. Maximum primary energy ratio has been estimated with a value of two over a wide range of operating conditions. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2461 / 2467

页数：7

共 20 条

[1] On the robustness, effectiveness and reliability of chemical and mechanical heat pumps for low-temperature heat source district heating: A comparative simulation-based analysis and evaluation [J].