Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Verification Experiment and Analysis for 6 kW Solar Water Heating System(Part 2 : Modelling and Simulation)

6 kW급 태양열 온수급탕 시스템의 실증실험 및 분석(제2보 모델링 및 시뮬레이션)

  • 최봉수 (경희대학교 대학원) ;
  • 김진홍 (경희대학교 대학) ;
  • 강용태 (경희대학교 기계산업시스템공학) ;
  • 홍희기 (경희대학교 기계산업시스템공학부)
  • Published : 2004.06.01
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Abstract

We have experimented an actual solar water heating system acquiring real data for one year period. On the basis of the operation data, it is necessary to predict the system performance such as collector efficiency and solar fraction, and to analyze the economical efficiency for system optimal design. To estimate the performance of actual systems through simulation, valid modelling for components consisting of the system should be accompanied. The present study is focused on the modelling for load patterns and operating control conditions. We proposed two load models: concentration model which gathers real loads as a meaningful group and distribution model which disperses real loads with time. If grouping of the load distribution is suitable, the predicted values by the concentration model approaches to those by the distribution model close to actual load pattern apparently. As a result, both of them are in good agreement with those by experiment.

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References

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