Effect of Refrigerant Circuitry on Indoor Coil Serving as Condenser and Evaporator in Heat Pump

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Effect of Refrigerant Circuitry on Indoor Coil Serving as Condenser and Evaporator in Heat Pump

更新时间：2025-07-09

- Effect of Refrigerant Circuitry on Indoor Coil Serving as Condenser and Evaporator in Heat Pump
- Vol. 42, Issue 9, Pages: 1107-1112(2008)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB65
- Online First：10 September 2008，
  
  Published：2008
- 稿件说明：
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Effect of Refrigerant Circuitry on Indoor Coil Serving as Condenser and Evaporator in Heat Pump[J]. 2008, 42(9): 1107-1112.
DOI：

Effect of Refrigerant Circuitry on Indoor Coil Serving as Condenser and Evaporator in Heat Pump[J]. 2008, 42(9): 1107-1112. DOI：

摘要

研究了顺交叉、逆交叉和NU型三种流路布置对R22热泵空调中冷凝和蒸发两用换热器性能的影响规律.结果表明:作为蒸发器时

NU型的换热量最大

比逆交叉和顺交叉的换热量分别增加了1.5%和3.25%; 作为冷凝器时

顺交叉的换热量最大

分别比逆交叉和NU型的换热量增加了7.4%和1.28%; 依据蒸发器和冷凝器的换热量之和比较

NU型的最大

顺交叉的次之

逆交叉的最小.因此

NU型是使制冷循环和制热循环效率较高的流路布置.

Abstract

The effects of three refrigerant circuitries on the indoor coil in a split-type air-source heat pump using R22 were investigated numerically by EVAP-COND 2.0. The results show that both the air-and-refrigerant temperature difference and overall heat transfer coefficient change with the space location. Moreover

the evaporator capacity with NU-shape arrangement is 1.5% and 3.25% more than that with counter and parallel arrangements

respectively. Furthermore

the condenser capacity with parallel arrangement is 7.4% and 1.28% more than that with counter and NU-shape arrangements

respectively. From the sum of condenser capacity and evaporator capacity

it seems that the NU-shape arrangement might be the reasonable one for indoor coil with higher energy efficiency in both cooling cycle and heating cycle.

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references

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