Simulation Studies on a Multi-stage Distillation with Slope-Plate Falling Film Evaporation Desalination System Using Solar Energy

Author

Gao, Penghui ; Zhou, Guoqing ; Lv, Henglin

Author_Institution

Sch. of Archit. & Civil Eng., China Univ. of Min. & Technol., Xuzhou, China

Volume

2

fYear

2009

fDate

16-18 Oct. 2009

Firstpage

734

Lastpage

736

Abstract

An innovative, multi-stage solar distillation with slope-plate falling film system for seawater desalination is investigated. The system consists of a solar heater (flat plate solar collector) and one evaporation-condensation set that is composed of five slope-plate stages. On one side of a slope-plate, seawater is distributed by falling film to evaporate, whereas on the other side, the plate is heated by condensing steam generated in the previous stage. The mathematical model of the system was presented. The temperature of every stage plate, the water production rates of every partition and the total water production rate in different time were studied theoretically, and found that the system could produce about 35 kg/(dayÂ·m²) in June. It has proven to be an efficient device to utilize solar energy for obtaining fresh water.

Keywords

desalination; distillation; solar absorber-convertors; solar power stations; vacuum deposition; evaporation-condensation set; flat plate solar collector; fresh water; mathematical model; multi-stage solar distillation; seawater desalination; slope-plate falling film evaporation desalination system; solar energy; solar heater; Civil engineering; Desalination; Equations; Feeds; Mathematical model; Power engineering and energy; Production systems; Solar energy; Temperature; Waste heat; desalination; falling film; solar energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy and Environment Technology, 2009. ICEET '09. International Conference on

Conference_Location

Guilin, Guangxi

Print_ISBN

978-0-7695-3819-8

Type

conf

DOI

10.1109/ICEET.2009.415

Filename

5363619