Investigation of a Desalination System With the Hybrid Solar/Electrical Heating Module
| Autor: | Tsung-Chieh Cheng, Van-Thoai Nguyen, Te-Hua Fang, Wei-Cheng Hung |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Renewable Energy
Sustainability and the Environment business.industry 020209 energy Energy Engineering and Power Technology 02 engineering and technology Solar energy Desalination 020401 chemical engineering 0202 electrical engineering electronic engineering information engineering Environmental science 0204 chemical engineering business Process engineering Efficient energy use |
| Zdroj: | Journal of Solar Energy Engineering. 142 |
| ISSN: | 1528-8986 0199-6231 |
| DOI: | 10.1115/1.4044567 |
| Popis: | An integrated desalination system with a combination of electrical heating by power supply and solar heating by Fresnel lens with the sun tracking system was investigated in this study. The experiments were carried out under the climatic conditions of Kaohsiung City (22 deg36′58″ N, 120 deg18′47″ E), Taiwan. With only solar heating by the Fresnel lens, the temperature of the seawater is strongly dependent on the position of the seawater tray and climatic conditions, and seawater evaporation is not stable. To maintain the uniform evaporation of seawater, an electrical heating plate was also used to provide energy for the desalination process. The results indicate that there are two desalination processes: evaporation on the surface of the seawater and boiling inside the seawater. The production of distilled water is greatly improved with this solar/electrical desalination system, especially at the boiling temperature. The results indicate that the energy efficiency and recovery efficiency of this desalination system increase rapidly as electrical power increases. In this study, the commercial energy efficiency of the system can reach 85%, and the recovery efficiency can approach 56.52%. Additionally, a higher annual productivity (6036 l) is obtained, and the cost per liter of distilled water is about 0.152 (US$/l). |
| Databáze: | OpenAIRE |
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