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Energies 2015, 8(5), 3867-3881; doi:10.3390/en8053867

Simulation of a Standalone, Portable Steam Generator Driven by a Solar Concentrator

1
Physics Department, College of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia
2
Solar Research Department, National Research Institute of Astronomy and Geophysics, Cairo 11421, Egypt
3
Electrical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah 21955, Saudi Arabia
*
Author to whom correspondence should be addressed.
Academic Editor: Sima Aminorroaya-Yamini
Received: 9 February 2015 / Revised: 10 April 2015 / Accepted: 14 April 2015 / Published: 5 May 2015
(This article belongs to the Special Issue Thermoelectric Energy Harvesting)
View Full-Text   |   Download PDF [1245 KB, uploaded 5 May 2015]   |  

Abstract

Solar energy is a good solution for energy-deficiency problems, especially in regions such ‎as rural areas in the Middle East that have not been electrified yet or are ‎under electrification. In ‎this paper, with the aid of a Computational Fluid Dynamics simulation, we propose a ‎system that comprises a trough solar concentrator and a pipe—with flowing water—that ‎is set in the concentrator focus. The aim of this work is to investigate the feasibility of generating steam ‎from such a system as well as analyzing the generated steam quantitatively ‎and qualitatively. Effects of variation of solar radiation intensity, ambient temperature, water ‎flow rate and pipe diameter on the quantity and quality of the generated steam have been investigated. The results ‎show that a quantity of about 130 kg of steam could be generated per day with a 0.01 m diameter with 0.0042 kg/s flowing water, although qualitatively, a narrower pipe achieves better performance than a wider one. About 74 kg of daily accumulated steam mass with a temperature >423 K could be achieved for a 0.005 m diameter tube compared to about 50 kg for the 0.01 m diameter tube. Steam quality factor is higher at all flow rates for the 0.005 m diameter tube compared to that of 0.01 m. View Full-Text
Keywords: solar energy; steam generation; Computational Fluid Dynamics (CFD) simulation solar energy; steam generation; Computational Fluid Dynamics (CFD) simulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Sabry, M.; Nahas, M.; Al-Lehyani, S.H. Simulation of a Standalone, Portable Steam Generator Driven by a Solar Concentrator. Energies 2015, 8, 3867-3881.

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