Zero emission /energy building heating through parabolic dish collector focused KNO3–NaNO3 and KNO3–NaNO3–NaNO2 PCM absorber: a case study

Sathish, T and Pelluru, Suresh and Sharma, Kamal and Saravanan, R. and Saleel, C Ahamed and Shaikh, Saboor and Khan, Sher Afghan and Panchal, Hitesh (2023) Zero emission /energy building heating through parabolic dish collector focused KNO3–NaNO3 and KNO3–NaNO3–NaNO2 PCM absorber: a case study. Case Studies in Thermal Engineering, 44 (102854). pp. 1-10. ISSN 2214-157X

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Abstract

Globally During the winter of the year, having a warm place to stay is a necessity, especially true in mountainous regions. Electric heating and biomass burning are the most common methods for this purpose. However, solar PV-based electric heating is a sustainable way to eliminate the cost of heating, which requires more panels and a large floor area. Alternatively, a solar thermal system is used for building heating during the winter season. But the effectiveness and duration of heating support depend on the system’s features and the researchers’ efforts to maximize them. This research aims to develop a zero-emission/energy-building heating system with a PCM. The influence of PCM choice is validated experimentally to maximize winter heating. Solar parabolic dish collectors (14 sq. m) with two distinct PCM embedded absorbers, such as KNO3–NaNO3 and KNO3–NaNO3–NaNO2, were considered for the investigation to optimize the PCM for the best performance with respect to building heating. The experimental results reveal that the KNO3–NaNO3 PCM outperformed by exhibiting a higher heat transfer rate than the PCM of KNO3–NaNO3–NaNO2. Hence the maximum output water temperature was recorded as 94 ◦C, and the quantity of heat transfer was 6273 W. The system’s energy efficiency was 50.6%, and the exergy was 5.99% with the absorber, which embedded KNO3–NaNO3 PCM. It was found that the black coating decreased heat loss from

Item Type:	Article (Journal)
Uncontrolled Keywords:	Zero energyParabolic dish collectorPCMZero emission building heatingEnergy efficiencyExergy efficiency
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ163.26 Energy conservation
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	09 Mar 2023 11:36
Last Modified:	19 Jun 2023 08:53
URI:	http://irep.iium.edu.my/id/eprint/104011

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