A home has a solar water heater with water capacity of 19.9 US liquid gallons. Water is initially at 26 ℃. The solar water heater heats the water between 10 am and 3 pm. The average incident normal solar radiation on the solar collector during these hours is 450 W/m2, the collector has an area of 10 m2 and its efficiency is 70%. i)Calculate the power absorbed by the collector and the total quantity of heat transferred to the water by 3 pm. ii) By considering the energy required to heat a liquid, determine the temperature  of the water by 3 pm

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Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.