대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제31권6호
  • /
  • Pages.499-506
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  • 2007
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  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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흐르는 세제혼합액막에 의한 화학적 세척 메커니즘에 대한 연구

A Study on Chemical Washing Mechanism by Flowing Film of Detergent/Water Solution

  • 장충효 (한국과학기술원 대학원 기계공학과) ;
  • 박찬열 (동양매직㈜ 가전연구소) ;
  • 송태호 (한국과학기술원 기계공학과)
  • 발행 : 2007.06.01
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초록

This study aims to propose evaluation methods of chemical washing performance and estimate the washing capability by flowing detergent/water solution for application to home appliances such as dishwashers. Standard pollutant is stearic acid. A numerical study is also tried using a SIMPLER code. Preliminary experiments are performed by varying the concentration and temperature of the solution. From the pre-experiments, 10 minute pre-curing time is found to be necessary to remove the stearic acid. Stoichiometric ratio and detergent consumption coefficient of reaction between the detergent and stearic are estimated following a proposed method. Washing experiments of pollutant to compare with the numerical results are performed. The relative errors between the experimental and the numerical results with pre-curing time included are less than 7%. In conclusion, important mechanisms of chemical washing are revealed and methods of predicting washing performance are well established.

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참고문헌

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