A solar collector meets the hot water needs of a family for 7 months, excluding 5 months of the winter season. This collector provides hot water at an average temperature of 55°C and an average cold water temperature of 16°C. The family uses an average of 14 tons of hot water per month from the solar collector, and in winter, hot water is provided by an electric heater. Since the unit price of electricity is 0.85 TL/kWh and the efficiency of the electric heater is 91%, calculate the annual electricity and money savings provided by the solar collector to the family. (Specific heat of water at room temperature=4.18kJ/kg*C)

A solar collector meets the hot water needs of a family for 7 months, excluding 5 months of the winter season. This collector provides hot water at an average temperature of 55°C and an average cold water temperature of 16°C. The family uses an average of 14 tons of hot water per month from the solar collector, and in winter, hot water is provided by an electric heater. Since the unit price of electricity is 0.85 TL/kWh and the efficiency of the electric heater is 91%, calculate the annual electricity and money savings provided by the solar collector to the family. (Specific heat of water at room temperature=4.18kJ/kg*C)

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?

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