Hourly Efficiency of Solar Water Collector: Solar Water Heating, Multi-Apartment Residential Buildings in Tel AvivCalculations of solar collector hourly efficiency based on the efficiency curve unique for each collector type. Collector efficiency depends on solar radiation, collector temperature and ambient temperature. The calculated yearly efficiency is almost equal to the efficiency determined according to the national standard. Higher efficiency is in winter. The maximum hourly efficiency is at 8 o’clock in July, 75.2%. |
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67 liters ambient air temperature ambient temperature apartment array Aviv buildings in Israel calculations central Chart Chromagen city water temperature Cold Water collector applied collector average temperature collector depends Collector hourly efficiency collector temperature collector type collector yearly efficiency connections considered depends on solar difference efficiency curve efficiency determined according Efficiency Formula Efficiency of Solar Electric energy unit equal expressed floors forced circulation Heating Energy height horizontal hour installations Israeli iteration hr Jan Jan Apr Jul Joule July kcal kcal/d kcal/hr kcal/m2,day Location Metric Units month Monthly Averages Monthly efficiency national standard Opening publication Radiation on Tilt relatively relevant residential buildings Selected Solar Collector solar collector efficiency Solar Collector Yearly Solar Energy solar radiation insolation Solar Water Heater standard efficiency stratification Table Tcold Tel Aviv temperature and ambient tilt angle 45 Usually vertical storage tank volume winter