干旱区生态环境知识资源中心(Arid): Thermal performance assessment of lauric acid and palmitic acid based multi-transformation phase change material and exfoliated graphite composites

Arid

DOI	10.1080/15567036.2020.1818004
	Thermal performance assessment of lauric acid and palmitic acid based multi-transformation phase change material and exfoliated graphite composites
	Nirwan, Anju; Kumar, Rohitash; Mondal, Bobin; Kumar, Jeetendra; Bera, Anuradha; Kumar, Ravindra
通讯作者	Nirwan, A
来源期刊	ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
ISSN	1556-7036
EISSN	1556-7230
出版年	2020-09
英文摘要	The large variation in day and night temperature of Thar Desert area provides an opportunity to reduce temperature fluctuations and thermal discomfort inside temporary shelters and buildings using phase change materials. Melting and solidification temperature of lauric and palmitic acid based multitransformation phase change material (MTPCM) are tuned in such a way that it melts during day time and solidifies during night time passively throughout summer season of Desert area. However, the poor thermal conductivity of MTPCM (0.2 W m(-1)K(-1)) hampers its complete phase reversal from liquid to solid with natural convection during peak summer night time. Therefore, the natural graphite flakes are exfoliated with similar to 300 times volume expansion and micropores are generated to imbibe MTPCM. The exfoliated graphite - MTPCM composites are prepared using vacuum impregnation technique to enhance thermal conductivity of MTPCM. The effect of exfoliated graphite mass fraction and composite samples density on thermal conductivity, latent heat of fusion, melting temperature, and solidification temperature of MTPCM is investigated. Thermal conductivity of exfoliated graphite-MTPCM composite is increased up to 11.95 Wm(-1)K(-1) at density 1170 kg m(-3). The Morphology of composite samples is also investigated using scanning electron microscopic analysis. The MTPCM with significant latent heat of fusion, appropriate melting and solidification temperature, and high thermal conductivity make it suitable for passive building cooling applications in Desert area.
英文关键词	Multi transformation phase change material exfoliated graphite vacuum impregnation thermal conductivity
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000571636800001
WOS类目	Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS研究方向	Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328263
作者单位	[Nirwan, Anju; Kumar, Rohitash; Mondal, Bobin; Kumar, Jeetendra; Bera, Anuradha; Kumar, Ravindra] Def Lab, Heat Management Grp, Jodhpur, Rajasthan, India
推荐引用方式 GB/T 7714	Nirwan, Anju,Kumar, Rohitash,Mondal, Bobin,et al. Thermal performance assessment of lauric acid and palmitic acid based multi-transformation phase change material and exfoliated graphite composites[J],2020.
APA	Nirwan, Anju,Kumar, Rohitash,Mondal, Bobin,Kumar, Jeetendra,Bera, Anuradha,&Kumar, Ravindra.(2020).Thermal performance assessment of lauric acid and palmitic acid based multi-transformation phase change material and exfoliated graphite composites.ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS.
MLA	Nirwan, Anju,et al."Thermal performance assessment of lauric acid and palmitic acid based multi-transformation phase change material and exfoliated graphite composites".ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS (2020).