For example 2.2 calculated the size of the heating rate to put solar water heater (water heater) if the water at a rate of 0.4 kg / s
into the system that 82 C out water and water 93 C
.
how do the pressure of water is constant throughout the flow heater
.Therefore, we use, the amount of energy in the hole of the heat added to each kilogram of น้ำมี value of
(4.19 kJ / kg.K) (93 - 82 to C). = 46.1 kJ / kg
q = (0.4 kg / s) (46.1 kJ / kg)
q = 18.44 kJ / S
q = 18.44 kW answer.
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