What amount of heat is consumed by a residential building per day, if during this time 1600 m3 of water entered the heating

What amount of heat is consumed by a residential building per day, if during this time 1600 m3 of water entered the heating system at a temperature of 90 s, and left at a temperature of 50 s

Data: V (volume of water supplied to the residential building) = 1600 m3; t1 (water temperature at the entrance to the house) = 90 ºС; t2 (temperature of the left water) = 50 ºС.

Constants: С (specific heat capacity of water) = 4200 J / (kg * ºС); ρ (density of water in the heating system) = 1000 kg / m3.

The amount of heat consumed by a residential building per day: Q = C * m * (t1 – t2) = C * ρ * V * (t1 – t2).

Calculation: Q = 4200 * 1000 * 1600 * (90 – 50) = 268.8 * 10 ^ 9 J (268.8 GJ).

Answer: A residential building consumes 268.8 GJ of heat per day.