In experiments performed Flat Plate Solar Collector system is hot. The organizing committee did a trial operation for 5 days from 19,20,21,22 and 24 of the month May 2558 the organizing committee can carry hot water produced by solar radiation testing by. Shrink Solar has a 1 × 2 m 2 panels Solar will be installed in the sun and nothing obscured the sun later stages of the organizing committee did an experiment for the flow rate. Water In order to find an appropriate flow rate and provide the best temperature. The flow rate of the water will affect the temperature of the water in the system. Has a flow rate of 0.05, 0.07, 0.09, 0.11 and 0.13 "L /" "s" ^ "2" in the trial for the flow rate 0.05 "L /" "s" ^ "2" then. can make maximum use temperature of the water has 73.5C, the flow rate to 0.07 "L /" "s" ^ "2" can make maximum use temperature of the water has 7C, flow rates. The 0.09 "L /" "s" ^ "2" can make maximum use temperature of the water is 70.4 C, the flow rate to 0.11 "L /" "s" ^ "2" can be made temperature. The maximum water use 68.7 C, the flow rate to 0.13 "L /" "s" ^ "2" can make maximum use temperature of the water, which has 68.3C flow rate that best suits your system. This is 0.05 "L /" "s" ^ "2" because the water temperature can be used 73.5C highest flow rate other than the organizers had put the flow rate at 0.05 "L /. "" s "^" 2 "as the flow rate of the trials and experiments in the organizing committee can carry out experiments on 19, 20, 21, 22 and May 24, 2558 from 08.00-. 17.00.
From the experiment, the calculation of the efficiency of water use at temperatures up to date is May 19, 2558 the maximum water temperature is 73.3 C at 14.50 hrs. at the rate of 0.05 "L /" "s". ^ "2" by the solar average was 671.31 "k /" "m" ^ "2" to calculate the efficiency of the solar collector on the water temperature to a maximum of 41.57% and has made the calculation of the efficiency of the body. Solar Collector By an average of five days to calculate the radiation performance Sunday. The result of the calculation of the efficiency of the solar collector is 38.53%.
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