Development and thermal characteristics of a novel composite oleic acid for cold storage

被引：9
作者：
Jiang, L. [1 ,2 ]
Wang, R. Z. [2 ]
Roskilly, A. P. [1 ]
机构：
[1] Newcastle Univ, Sir Joseph Swan Ctr Energy Res, Claymt Rd, Newcastle NE1 7RU, Tyne & Wear, England
[2] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2019年 / 100卷
基金：
英国工程与自然科学研究理事会; 中国国家自然科学基金;
关键词：
Oleic acid; Carbon coated aluminum; Thermal conductivity; Solar sorption; PHASE-CHANGE MATERIALS; SPHERICAL CAPSULE; NANOFLUID PCM; EUTECTIC PCM; ENERGY; PERFORMANCE; ADSORPTION; CONDUCTIVITY; SYSTEM; SOLIDIFICATION;
D O I：
10.1016/j.ijrefrig.2019.01.025
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents a novel composite material for cold storage. Oleic acid is selected as phase change material whereas carbon coated aluminum is adopted as additive. Thermal conductivities and viscosities of samples are investigated by light flash method and viscometer. Phase change temperature and latent heat are analyzed through DSC measurements. It is indicated that thermal conductivities of composite oleic acid using nanoparticles are remarkably improved when compared with pure sample. The highest thermal conductivity of composite oleic acid with 1 wt% mass ratio of Al@C could reach 0.42 W m(-1) K-1, which is 2 times higher than that of pure oleic acid. When testing temperature increases from 25 degrees C to 75 degrees C, dynamic viscosities decrease from 3.67 mPa s to 1.062 mPa s. Phase change temperature and latent heat are slightly shifted from that of pure oleic acid. This novel composite oleic acid reveals vast potentials to stabilize the performance of solar sorption cooling system. (C) 2019 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码：55 / 62
页数：8
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