干旱区生态环境知识资源中心(Arid): Design and demonstration of Knudsen heat pump without moving parts free from electricity

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DOI	10.1016/j.apenergy.2019.05.065
	Design and demonstration of Knudsen heat pump without moving parts free from electricity
	Kugimoto, K.1,2; Hirota, Y.1; Yamauchi, T.1; Yamaguchi, H.2; Niimi, T.2
通讯作者	Kugimoto, K.
来源期刊	APPLIED ENERGY
ISSN	0306-2619
EISSN	1872-9118
出版年	2019
卷号	250 页码:1260-1269
英文摘要	A heat pump with low power consumption and a simple mechanical configuration is required to save energy and reduce carbon dioxide emissions. We show the design and demonstration of a novel heat pump using a Knudsen compressor, referring this device as a Knudsen heat pump. Water is employed as a refrigerant. The motionless nature of the Knudsen heat pump is accomplished by using a Knudsen compressor to transport the refrigerant vapor from the evaporator to the condenser, and thermal energy alone supplies the needed power. We employ a simple single-stage Knudsen compressor powered by light from a halogen lamp as an energy source. Experiments confirmed heat transport from the evaporator to the condenser with an output power of 3.09 W. The output power tended to increase linearly as the temperature difference between the evaporator and condenser decreased. The pressure-enthalpy diagram of the proposed Knudsen heat pump cycle was shown, and the thermal efficiency of this heat pump was analyzed. The application of a multi-stage Knudsen compressor to improve the heat pump performance was also discussed. This heat pump is free from noise, vibration, and maintenance, and it can utilize low-quality energy, such as a solar energy, and it does not require any electrical input. These properties make the Knudsen heat pump a particularly significant technology in harsh environments such as space and desert.
英文关键词	Thermal molecular pump Micro gaseous flow High Knudsen number flow Thermal transpiration Heat recovery Low-quality energy
类型	Article
语种	英语
国家	Japan
收录类别	SCI-E
WOS记录号	WOS:000482245500005
WOS关键词	PRESSURE MEMS GAS ; THERMAL TRANSPIRATION ; MASS-TRANSFER ; EQUATION
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS研究方向	Energy & Fuels ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214252
作者单位	1.Toyota Cent Res & Dev Labs Inc, 41-1 Yokomichi, Nagakute, Aichi 4801192, Japan; 2.Nagoya Univ, Dept Micronano Mech Sci & Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan
推荐引用方式 GB/T 7714	Kugimoto, K.,Hirota, Y.,Yamauchi, T.,et al. Design and demonstration of Knudsen heat pump without moving parts free from electricity[J],2019,250:1260-1269.
APA	Kugimoto, K.,Hirota, Y.,Yamauchi, T.,Yamaguchi, H.,&Niimi, T..(2019).Design and demonstration of Knudsen heat pump without moving parts free from electricity.APPLIED ENERGY,250,1260-1269.
MLA	Kugimoto, K.,et al."Design and demonstration of Knudsen heat pump without moving parts free from electricity".APPLIED ENERGY 250(2019):1260-1269.