Answered: A family consumes 15×103 kg of hot…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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A family consumes 15×103 kg of hot water per month and uses an electrical resistance heater to raise water temperature form 20oC to 55°C on average. Assume the cost of electricity is $ 0.01/kWh and the efficiency of the electric heater is about 93 percent due to the heat losses. (a) Determine the annual electricity bill due to water heating. (b) If the family installed a solar water heater (SWH) that supplies the required hot water for 8 months on average (the other 4 months account for cloudy days), what would be the annual saving?

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