A numerical investigation on how to efficiently utilise carbon dioxide   in convection-based energy systems

doi:10.1504/IJGW.2016.10000503

CORC > 北京大学 > 工学院

	A numerical investigation on how to efficiently utilise carbon dioxide in convection-based energy systems
	Cao, Yuhui ; Zhang, Xin-Rong
刊名	INTERNATIONAL JOURNAL OF GLOBAL WARMING
	2016
关键词	carbon dioxide natural convection heat transfer global warming LATTICE BOLTZMANN METHOD HEAT-TRANSFER NATURAL-CONVECTION SUPERCRITICAL CO2 EXCHANGERS EMISSIONS LAMINAR CAVITY FLOWS MODEL
DOI	10.1504/IJGW.2016.10000503
英文摘要	Owing to the environmentally benign nature and the special property variation at supercritical pressure, greenhouse gas carbon dioxide is regarded as the best retrofit to meet the future demand on long-term environmental-friendly working fluids. However, how to efficiently utilise carbon dioxide to reduce energy consumption and mitigate global warming is still an unsolved problem. In this paper, the natural convection heat transfer of carbon dioxide under supercritical pressure condition in a small cavity is studied for the first time. The potential of carbon dioxide as working fluid is quantitatively estimated in terms of enhancing heat transfer and reducing the cost of heat exchangers. It is found that the operating conditions including the temperature, temperature difference and pressure all have significant effects on heat transfer rate due to the special property variations of the CO2 fluid. Furthermore, a heat transfer correlation is proposed for the first time to quantitatively describe the natural convection heat transfer of CO2 at supercritical pressure in a small cavity.; National Science Foundation of China [51376006, 51476001]; SCI(E); ARTICLE; yhcao@ucas.ac.cn; xrzhang@coe.pku.edu.cn; 4,SI; 404-422; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/459125]
专题	工学院
推荐引用方式 GB/T 7714	Cao, Yuhui,Zhang, Xin-Rong. A numerical investigation on how to efficiently utilise carbon dioxide in convection-based energy systems[J]. INTERNATIONAL JOURNAL OF GLOBAL WARMING,2016.
APA	Cao, Yuhui,&Zhang, Xin-Rong.(2016).A numerical investigation on how to efficiently utilise carbon dioxide in convection-based energy systems.INTERNATIONAL JOURNAL OF GLOBAL WARMING.
MLA	Cao, Yuhui,et al."A numerical investigation on how to efficiently utilise carbon dioxide in convection-based energy systems".INTERNATIONAL JOURNAL OF GLOBAL WARMING (2016).