1- Calculate the temperatures of the return to storage (To) and to the collector (Tyo) for...

 

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1- Calculate the temperatures of the return to storage (To) and to the collector (Tyo) for the following configuration of a Solar Water Heating System as shown in the Fig.1. The other parameters are: Collector loop fluid (small stream): Propylene glycol and water, 50% by weight. Outer loop fluid (large stream): water. Ux Ax = 5500 WPC Number of collectors = 40 SUN To 70 °C Tho Tại= 70°c Storage tank at To= 65°C UA 2m X Im 65°c M06 kg/s Tso Tri Mr- 0.4 kgis Pump 1 Pump 2 Tr, - Tso Fig. 1 Solar Water Heating System 11 1 1- Calculate the temperatures of the return to storage (To) and to the collector (Tyo) for the following configuration of a Solar Water Heating System as shown in the Fig.1. The other parameters are: Collector loop fluid (small stream): Propylene glycol and water, 50% by weight. Outer loop fluid (large stream): water. Ux Ax = 5500 WPC Number of collectors = 40 SUN To 70 °C Tho Tại= 70°c Storage tank at To= 65°C UA 2m X Im 65°c M06 kg/s Tso Tri Mr- 0.4 kgis Pump 1 Pump 2 Tr, - Tso Fig. 1 Solar Water Heating System 11 1