ISSN: 1659-2751

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Optimization of a Condensation System for Water for Use in Agriculture

Abstract

The objective of this study was to simulate evaporation and condensation of seawater to convert it into fresh water. Focusing on the optimization of a low-cost condenser that would be capable of producing fresh water for agricultural purposes, a condensation system was designed and constructed at EARTH University. A closed structure was built where condensed water was produced by providing the necessary conditions. A plastic membrane was used to make the condenser. The ends of the condenser were connected to a cold water system. At one end of the structure there was a hose system that applied hot water to an evaporating pad to cause evaporation. Water vapor was extracted by a fan located at the opposite end of the structure. The water vapor flowed through the condenser, located in the middle of the structure. When the temperature of the vapor reached the dew point, it formed drops on the external wall of the condenser and these drops were then collected. The temperature of the cold water flowing inside the condenser was set at 24 °C and 27 °C. With cooler water flowing inside the condenser, more condensation was produced. At 24 °C, an average amount of 9.8 mL was condensed in 5 min and an average of 5.6 mL in the second case. This represented a significant statistical difference (p<0,01). There is a potential for this system to be adapted for use in the field on a larger scale, however, more research on the construction of the condenser needs to be done in the future.

Key words: water, condensation, condenser, dew point, steam.

Artículo en español (pdf) (663)