Thermal Performance Analysis of U-pipe Evacuated Tube Solar Heater System with and without PCM
| Autor: | Salah Noori ALali, Jasim Abdulateef, Qusay Hassan, Marek Jaszczur |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Solar heater
Evacuated tube PCM Solidification Useful energy Engineering machinery tools and implements TA213-215 Mechanics of engineering. Applied mechanics TA349-359 Electrical engineering. Electronics. Nuclear engineering TK1-9971 Chemical engineering TP155-156 Environmental engineering TA170-171 |
| Zdroj: | Diyala Journal of Engineering Sciences, Vol 16, Iss 4 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1999-8716 2616-6909 |
| DOI: | 10.24237/djes.2023.160403 |
| Popis: | The study presents a comprehensive thermal performance analysis of a U-pipe Evacuated Tube Solar Collector (U-ETSC) system, integrated with Phase Change Material (PCM), for satisfying water demand in domestic applications. The innovative approach of incorporating PCM aims to enhance the system's efficiency during night or off-sunny hours, addressing a common limitation in solar heater systems. The research primarily focuses on the impact of varying mass flow rates of the heat transfer fluid (HTF) on the thermal dynamics of the system. Experimental results reveal that as the mass flow rates of HTF increase from 0.5 to 1 and then to 1.5 liters per minute, there is a notable change in the phase transition times of the PCM. Specifically, the melting time of the PCM is increased by 13% and 16% for the respective flow rates, suggesting a delayed response in energy absorption. Conversely, the solidification time of the PCM is reduced by 16% and 18% respectively, indicating a faster release of stored thermal energy. This behavior underscores the PCM's significant role in stabilizing the system's thermal output during varying solar intensities. The findings of this study highlight the potential of integrating PCM in U-ETSC systems to achieve a more consistent and reliable supply of hot water for domestic purposes, especially during periods when solar irradiance is low or absent. |
| Databáze: | Directory of Open Access Journals |
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