Calculation of hot water heating load for domestic use
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The average heat load for domestic heating during the heating period is given by the formula Q=0.001163·m·v·(tr-t1)/T. Here, Q represents the average heat load for domestic heating during the heating period, in KW； m – number of units of hot water (for residences, it is the number of people; for public buildings, it is the number of person-days, number of beds, etc.) ； v – Daily hot water consumption in units of liters per day, L/d; the value is selected in accordance with the \"Code for Design of Building Water Supply and Drainage\" GBJ15 ； tr – Temperature of domestic hot water in °C; the value is taken according to the temperature specified in the standards for hot water consumption ； t1 – the temperature calculated by the cold water meter, taken as the lowest monthly average water temperature in °C; if no data is available, the value specified in the \"Code for Design of Building Water Supply and Drainage\" GBJ15 shall be used. T -- Number of hours of water supply per day; for residences, hotels, hospitals, etc., it is generally 24 hours. What constant is this 0.001163?
0.001163 is the conversion factor between kilocalories and kilowatt-hours; you can calculate it yourself: 1 kilocalorie = 4184 J, 1 kilowatt-hour = 360,000 J, so 1 kilocalorie = 0.001163 kilowatt-hours.