A Thermal Model for Predicting the Performance of a Solar Still with Fresnel Lens

被引：44

作者：

Johnson, Ana ^{[1
]}

Mu, Lei ^{[1
]}

Park, Young Ho ^{[1
]}

Valles, Delia J. ^{[2
]}

Wang, Huiyao ^{[3
]}

Xu, Pei ^{[3
]}

Kota, Krishna ^{[1
]}

Kuravi, Sarada ^{[1
]}

机构：

[1] New Mexico State Univ, Dept Mech & Aerosp Engn, Las Cruces, NM 88003 USA

[2] New Mexico State Univ, Dept Ind Engn, Las Cruces, NM 88003 USA

[3] New Mexico State Univ, Dept Civil Engn, Las Cruces, NM 88003 USA

来源：

WATER | 2019年 / 11卷 / 09期

基金：

美国食品与农业研究所;

关键词：

solar still; insolation; distillation; single-slope still; Fresnel lens; solar enhancement; desalination; productivity enhancement; HEAT-TRANSFER; CHARACTERISTIC EQUATION; MASS-TRANSFER; GLASS COVER; WATER DEPTH; DAILY YIELD; SINGLE; DISTILLATION; DESALINATION; ENERGY;

D O I：

10.3390/w11091860

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study presents a theoretical model to simulate the temperatures and productivity of a single-slope, single-basin solar still when an external solar enhancement is used. Experiments were performed in the New Mexico region (32.3199 degrees N, 106.7637 degrees W) to validate the numerical model. A point focusing Fresnel lens was used in the experiments to enhance the solar input. It was found that a significant rise in the productivity of the still was achieved with the Fresnel lens. Parametric study by varying the water depth showed the Fresnel lens was more effective for larger water depths. In addition, the Fresnel lens can aid in improving the overall efficiency of the solar still.

引用

页数：20

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