用于空调能量回收的板式脉动热管换热器

doi:10.16085/j.issn.1000-6613.2017-2255

化工进展 ›› 2018, Vol. 37 ›› Issue (08): 2919-2926.DOI: 10.16085/j.issn.1000-6613.2017-2255

用于空调能量回收的板式脉动热管换热器

夏侯国伟¹, 张俊杰¹, 龙葵², 马锐¹, 张苗¹

1 长沙理工大学能源与动力工程学院, 湖南长沙 410004;
2 广东电网有限责任公司东莞供电局, 广东东莞 523850

收稿日期:2017-11-02 修回日期:2018-01-16 出版日期:2018-08-05 发布日期:2018-08-05
通讯作者: 夏侯国伟(1963-),副教授,硕士生导师,研究方向为高效强化传热。
作者简介:夏侯国伟(1963-),副教授,硕士生导师,研究方向为高效强化传热。E-mail:xh_gw@126.com。
基金资助:
国家自然科学基金（51376025）、能源高效清洁利用湖南省高校重点实验室开放基金（2015NGQ010）及长沙市科技计划（qk1602041）项目。

A plate pulsating heat pipe heat exchanger for air-conditioning energy recovery

XIAHOU Guowei¹, ZHANG Junjie¹, LONG Kui², MA Rui¹, ZHANG Miao¹

1 School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410004, Hunan, China;
2 Guangdong Power Grid Co., Ltd., Dongguan Power Supply Bureau, Dongguan 523850, Guangdong, China

Received:2017-11-02 Revised:2018-01-16 Online:2018-08-05 Published:2018-08-05

摘要/Abstract

摘要： 为提高脉动热管换热器在空调系统排风能量回收中的换热效率，提出了一种新型并联槽道板式脉动热管及由其组成的换热器。首先对单片热管在空调排风夏季工况下的能量回收情况进行了传热性能实验研究，影响因素包括槽道当量直径、充液率、工质种类、风速、风温、微倾角；然后对一组由7片热管顺排形成的板式脉动热管换热器的换热效率进行了计算。研究表明：新型板式脉动热管的适用工质为R141b，最佳充液率为25%；传热性能随新风温度及风速的升高而增强，新风、排风温差小于6℃时热管不启动；随风速增加，换热量增加，但换热效率有所降低；给定工况下板式脉动热管散热器的换热效率为44.1%；微倾角可使空调能量回收系统在保证良好换热效率的同时实现换季不换向，热管安装宜采用+2°左右的微倾角。

关键词: 板式脉动热管, 回收, 传热, 多相反应, 换热效率

Abstract: In order to improve the heat transfer efficiency of the pulsating heat pipe heat exchanger(PHPHE)in the exhaust energy recovery of air conditioning system, a new type of parallel channel plate pulsating heat pipe heat exchanger was proposed. Firstly, the detailed research was carried out on the heat transfer performance of the single-chip heat pipe in the air-conditioning of exhaust energy in summer condition. The influencing factors include channel equivalent diameter, liquid filling rate, working fluid type, speed of wind and inclination angle. On the bases of the above, the heat transfer efficiency of the PHPHE formed by seven pieces of heat pipe in line was calculated. Results showed that R141b is an appropriate working fluid and the optimum filling rate is 25%. The heat transfer performance was enhanced with the increase of fresh air temperature and wind speed. The pulsating heat pipe almost cannot start up, when the difference between the indoor air temperature and the exhaust air temperature is less than 6℃. The heat transfer efficiency of the PHPHE is 44.1%. The micro-inclination angle can make this system keeping higher heat transfer efficiency without orientation changes in different seasons. The better installation angle is around +2°.

Key words: plate pulsating heat pipe, recovery, heat transfer, multiphase reaction, heat exchange efficiency

中图分类号:

TK11⁺5

夏侯国伟, 张俊杰, 龙葵, 马锐, 张苗. 用于空调能量回收的板式脉动热管换热器[J]. 化工进展, 2018, 37(08): 2919-2926.

XIAHOU Guowei, ZHANG Junjie, LONG Kui, MA Rui, ZHANG Miao. A plate pulsating heat pipe heat exchanger for air-conditioning energy recovery[J]. Chemical Industry and Engineering Progress, 2018, 37(08): 2919-2926.

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用于空调能量回收的板式脉动热管换热器

A plate pulsating heat pipe heat exchanger for air-conditioning energy recovery

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