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

The Korean Society of Mechanical Engineers (대한기계학회)
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Study on Prediction of Performance with Design Variables of Solar-Assisted Still Using Waste Heat from Diesel Generator

디젤 발전기 폐열을 활용한 태양열원 해수담수기의 설계변수에 따른 성능 예측에 관한 연구

  • Jang, Hyun (Graduate School of Mechanical Engineering, Gyeongsang Nat'l Univ.) ;
  • Yi, Chung Seob (Gyeongsang Nat'l Univ. & ERI) ;
  • Suh, Jeong Se (School of Mechanical Engineering, Gyeongsang Nat'l Univ.& ERI) ;
  • Jeong, Kyoung Yul (Environmental and Energy Systems Research Division, Korea Institute of Machinery and Materials) ;
  • Park, Change Dae (Environmental and Energy Systems Research Division, Korea Institute of Machinery and Materials)
  • 장현 (경상대학교 대학원 기계공학과) ;
  • 이중섭 (경상대학교 공학연구원) ;
  • 서정세 (경상대학교 기계공학부&ERI) ;
  • 정경열 (한국기계연구원 그린환경에너지 기계연구본부) ;
  • 박창대 (한국기계연구원 그린환경에너지 기계연구본부)
  • Received : 2012.11.12
  • Accepted : 2013.10.10
  • Published : 2013.12.01
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Abstract

This study predicts distillate productions according to design variables by numerical analysis when the waste heat from a diesel generator is added to the solar-assisted still proposed in a previous study. Mathematical models were set up in reference to previous studies, and the amount of heat exchange from the waste heat recovery pipe was considered. To ensure the reliability of numerical analysis, the result was compared with that of a previous study and then, the distillate productions according to design variables were obtained by the analysis model. The results were found to generally be in agreement, and the increasing amount of distillate production of the still with the added waste heat was confirmed. In addition, the optimal value of the tilt angle of glass cover and the number of cells were determined by numerical analysis.

본 연구에서는 선행연구에서 제시된 태양열원식 해수 담수기 모델에 디젤 발전기 폐열을 적용하였을 때 설계변수에 따른 담수량을 수치해석을 통하여 예측하고, 최적설계를 위한 자료를 제시하고자 하였다. 선행연구를 기초로 수학적 모델을 설정하였고, 폐열 회수관으로부터의 열교환량을 고려하였다. 해석의 결과를 선행연구의 결과와 비교 분석하여 해석의 타당성을 확보하였고, 타당성이 검증된 해석모델을 적용하여 여러 가지 설계 변수에 따른 담수량을 예측하였다. 결과적으로 선행연구와 전반적으로 일치한 해석결과를 확인하였고, 디젤 발전기 폐열을 적용하였을 때 담수량 향상정도를 확인하였다. 또한 수치해석을 통하여 최적의 효용단 수, 유리덮개 경사각 등을 결정하였다.

Keywords

References

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  1. One-dimensional Numerical Analysis of the Effect of Seawater Feed Rate on Multi-effect Solar Stills vol.40, pp.7, 2016, https://doi.org/10.3795/KSME-B.2016.40.7.477