Experimental Study on Solar Heat Battery using Phase Change Materials for Parabolic Dish Collectors Show others and affiliations
2021 (English) In: INTERNATIONAL JOURNAL OF RENEWABLE ENERGY DEVELOPMENT-IJRED, ISSN 2252-4940, Vol. 10, no 4, p. 819-825Article in journal (Refereed) Published
Abstract [en]
Energy consumption has increased with the population increase, and fossil fuel dependency has risen and causing pollutions. Solar energy is suitable to provide society's thermo-electric needs. Thermal energy storage-based concentrated solar receivers are aimed at store heat energy and transportable to the applications. A cavity receiver with two-phase change materials (PCM) is experimentally investigated using a parabolic dish collector to act as the solar heat battery. The selected PCMs are MgCl2 center dot 6H(2)O and KNO3-NaNO3. PCMs are chosen and placed as per the temperature zones of the receiver. The outdoor test was conducted to determine the conical receiver's storage performance using cascaded PCMs. The complete melting of PCM attains at an average receiver surface temperature of 230 degrees C. The complete melting of the PCM in the receiver took around 30 minutes at average radiation around 700 W/m(2), and heat stored is approximately 5000 kJ. The estimated number of cavity receivers to be charged on a sunny day is about 10-15 according to the present design and selected PCMs, for later use.
Place, publisher, year, edition, pages Institute of Research and Community Services Diponegoro University (LPPM UNDIP) , 2021. Vol. 10, no 4, p. 819-825
Keywords [en]
Solar energy, parabolic dish, thermal energy storage, heat battery, phase change material, cascaded PCM
National Category
Energy Engineering
Identifiers URN: urn:nbn:se:kth:diva-307061 DOI: 10.14710/ijred.2021.38376 ISI: 000734065600004 Scopus ID: 2-s2.0-85113735572 OAI: oai:DiVA.org:kth-307061 DiVA, id: diva2:1625945
Note QC 20220110
2022-01-102022-01-102022-06-25 Bibliographically approved