| Title |
Verification Experiment and Analysis for 6kW Solar Water Heating System Part2：Modelling and Simulation |
| Keywords |
Solar thermal energy ; 태양열 에너지 ; Water heating system ; 온수급탕 시스템 ; Modelling ; 모델링 ; Simulation ; 시뮬레이션 ; Load pattern ; 부하패턴 |
| 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. |