Experimental research on the operation characteristics of solar chimney power plant combined with distillation (SCPPCD)

Lu Zuo, Ziyang Yan, Pengzhan Dai, Tian Zhou, Bo Qu, Yue Yuan and Yunting Ge

Applied Energy, 2022, vol. 326, issue C, No S0306261922012867

Abstract: In this paper, a comprehensive test platform for solar chimney power plant combined with distillation (SCPPCD) that can realize water-electricity cogeneration was designed and built. Experimental research on SCPPCD was carried out under actual meteorological conditions to explore the system operation performance and the laws of freshwater production and power generation. The interaction mechanism between parameters such as seawater temperature, airflow temperature, temperature difference between seawater and solar still cover, freshwater yield and generated power was revealed. The results show that the daily water yield of solar stills decreases from the heat collector inlet to the chimney. Solar stills are recommended to be arranged in the area from collector inlet to the one-third radius of the collector. The high-water yield period occurs between sunset and 1–3 a.m., and it contributes most of the freshwater produced. Temperature difference is the main factor affecting water production during the rising period of freshwater production, and seawater temperature is the main factor affecting freshwater production during the decline period. The maximum temperature rise of airflow in the chimney is 17 ℃, and the temperature rise is maintained above 5 ℃ at night. The variation of generator power is similar to that of airflow temperature rise, and the maximum power reaches 0.71 mW. This study provides detailed experimental data and theoretical reference for future mathematical simulation research and commercial application of SCPPCD.

Keywords: Solar chimney; Solar desalination; Water-electricity cogeneration; Freshwater yield; Turbine (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (1)

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DOI: 10.1016/j.apenergy.2022.120029

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