Evacuated tube heat pipe solar collector for Encontech engine-driven reverse osmosis solar desalination
Author | Takalkar, Gorakshnath |
Author | Bhosale, Rahul R. |
Available date | 2024-03-12T04:41:21Z |
Publication Date | 2020 |
Publication Name | International Journal of Energy Research |
Resource | Scopus |
ISSN | 0363-907X |
Abstract | Utilization of a single evacuated tube heat pipe solar collector (ETHPSC) for the efficient deployment of the solar energy toward driving the Encontech heat engine for reverse osmosis desalination is considered in this study. The effects of the mass flow rate of water urn:x-wiley:0363907X:media:er5414:er5414-math-0001, inlet temperature (T i), solar intensity (I), the ratio of the condenser to absorber area (A co/A abs), heat transfer coefficients ( h air and h vacuum) on energy and exergy efficiency (η, η Ex), the absorber ( T abs), condenser ( T co), and the outlet temperature ( T o) are explored by using a heat transfer resistance model. An open-source SCILAB software was used for performing the computer simulations. The simulation results show that for each h air there is an optimum T i (based on the exergetic performance). The lower h air and h vacuum appears to be more promising to improve the efficiency and temperature gain ( T i − T o) of the ETHPSC. The maximum energetic efficiency of 52.5% is obtained for h vacuum (1 W/m2 K). Obtained results further demonstrate that the energetic and exergetic performances of the ETHPSC are higher at T i = 50°C. Both energetic and exergetic efficiencies exhibit upper values at A co/A abs ratio up to 1. Further increment in this ratio up to 3 resulted in a decrease in the efficiency of the ETHPSC. |
Sponsor | This publication was made possible by the NPRP grant (NPRP8-547-2-222) from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of author(s). We also would like to thank Metco Qatar W.L.L for providing technical support for the operation of the solar facility. |
Language | en |
Publisher | John Wiley and Sons Ltd |
Subject | desalination Encontech heat engine evacuated tube heat pipe solar collector (ETHPSC) exergy analysis solar energy thermal analysis |
Type | Article |
Pagination | 12460-12473 |
Issue Number | 15 |
Volume Number | 44 |
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