Performance Enhancement of Heat Pump Dryer using Heat Recovery

Q3 Chemical Engineering

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences Pub Date : 2024-07-04 DOI:10.37934/arfmts.118.2.3446

Praphanpong Somsila, Eakpoom Boonthum, Songsupa Pumchumpol, Umphisak Teeboonma, Apinunt Namkhat

引用次数: 0

Abstract

The purpose of this research was to study on performance of a heat pump dryer using R32 refrigerant by recovering waste heat from an external condenser. Drying was carried out with drying temperatures of 45, 50 and 55 °C and water flow rates in the heat exchanger of 2, 3 and 4 L/min. Criteria for evaluating performance of heat pump dryer include: drying rate (DR), specific moisture extraction rate, specific energy consumption (SEC) and coefficient of performance of heat pump (COPh). The result shown that the performance of a heat pump dryer with heat recovery is higher than that of a traditional heat pump dryer. It was also found that increasing in drying temperature and water flow rate in heat exchanger resulted in an increase in the drying rate, power of the heat pump dryer and the specific moisture extraction rate. Whereas the specific energy consumption had decreased.

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利用热回收提高热泵干燥机的性能

本研究的目的是通过回收外部冷凝器的废热，研究使用 R32 制冷剂的热泵干燥机的性能。干燥温度分别为 45、50 和 55 °C，热交换器中的水流量分别为 2、3 和 4 升/分钟。评价热泵干燥机性能的标准包括：干燥速率（DR）、特定水分提取率、特定能耗（SEC）和热泵性能系数（COPh）。结果表明，带热回收功能的热泵干燥机的性能高于传统的热泵干燥机。研究还发现，提高热交换器中的干燥温度和水流量可提高干燥速率、热泵干燥机的功率和特定水分提取率。而具体能耗则有所下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

2.40

自引率

0.00%

发文量

176

期刊介绍： This journal welcomes high-quality original contributions on experimental, computational, and physical aspects of fluid mechanics and thermal sciences relevant to engineering or the environment, multiphase and microscale flows, microscale electronic and mechanical systems; medical and biological systems; and thermal and flow control in both the internal and external environment.