Experimental thermal performance of deionized water and iron oxide nanofluid for cold thermal storage

作     者：Chandrasekaran, Ponnusamy Premnath, Doss Cheralathan, Marimuthu Senthil, Ramalingam 

作者机构：Department of Mechanical Engineering SRM Institute of Science and Technology Kattankulathur Chennai603203 India 

出 版 物：《Environmental Science and Pollution Research》 (Environ. Sci. Pollut. Res.)

年 卷 期：2024年第31卷第17期

页      面：26330-26339页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 081404[工学-供热、供燃气、通风及空调工程] 0703[理学-化学] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：The authors thank the SRM Institute of Science and Technology  Kattankulathur Campus  Chennai  for providing the required research infrastructure 

主　　题：Thermal energy 

摘      要：Phase change materials enhance the thermal comfort of buildings by utilizing stored thermal energy. In large air-conditioning systems, ice storage plays a crucial role in managing peak power loads. This experimental study explores the freezing characteristics of deionized water containing suspended iron oxide nanoparticles in spherical containers for cold storage. The synthesized nanofluid phase change material (NFPCM) was investigated for its freezing behavior under surrounding fluid temperatures of − 2 °C and − 6 °C. The uniformity in charging of NFPCM is the unique feature prevalent in the first quarter of the charging, with 50% mass frozen observed. An increased surface heat flux of 200% was achieved using NFPCM at Tsurr = -6 °C. The chiller operational time is optimally reduced by 75% by considering twice the container design’s phase change materials. Adding iron oxide nanoparticles and partial charging is suitable for uniform heat transfer for the shorter freezing duration in cooling applications. The novelty of the present study is that the proposed NFPCM nearly nullifies the subcooling effects of deionized water without using nucleating agents. This NFPCM appreciably enhances power competence, yielding large-scale air-conditioning systems’ desired economic impact and sustainability. The reported results align with Sustainable Development Goals (7—Affordable and Clean Energy and 13—Climate Action). © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.