Experimental testing and evaluation of parameters on the extraction of water from air using thermoelectric coolers

F. L. Tan, S. C. Fok

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

An experimental prototype is built to study the application of using the thermoelectric cooler (TEC) to extract water from air for daily consumption. This paper presents the experimental evaluation of parameters that influence the amount of water, which can be collected from condensation of water vapour in the air on the cooled surface. The investigation examines the power supply to the TEC and the air flow over the cold surface on the amount of condensate collected. Over a 3-h period with an average relative humidity of 77 %, the largest amount of water extracted from the air is about 50 mL for a cold surface area of 579.6 cm2. With an average power consumption of 89 W, the prototype produces condensation at 5340 kWh/kL. Although the prototype is currently not cost effective, the usage of TEC is promising as there is ample room for prototype improvement.

Original languageEnglish
JournalJournal of Testing and Evaluation
Volume41
Issue number1
DOIs
Publication statusPublished - Jan 2013

Fingerprint

Water
Testing
Air
Condensation
Steam
Water vapor
Atmospheric humidity
Electric power utilization
Costs

Keywords

  • Condensation
  • Dew point
  • Extraction of water from air (EWA)
  • Humidity
  • Thermoelectric cooling

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

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abstract = "An experimental prototype is built to study the application of using the thermoelectric cooler (TEC) to extract water from air for daily consumption. This paper presents the experimental evaluation of parameters that influence the amount of water, which can be collected from condensation of water vapour in the air on the cooled surface. The investigation examines the power supply to the TEC and the air flow over the cold surface on the amount of condensate collected. Over a 3-h period with an average relative humidity of 77 {\%}, the largest amount of water extracted from the air is about 50 mL for a cold surface area of 579.6 cm2. With an average power consumption of 89 W, the prototype produces condensation at 5340 kWh/kL. Although the prototype is currently not cost effective, the usage of TEC is promising as there is ample room for prototype improvement.",
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