A copper pipe with its outer surface painted black is installed in the shape of a coil in a box that is painted black from the inside in solar water heaters. The outer surface of the copper tube and the interior walls of the box are blackened to maximise heat absorption and produce a high temperature. The box of a solar water heater, like that of a solar cooker, is covered with a glass sheet to keep the heat inside. The bottom of the water storage tank is connected to one end of the copper pipe, while the other end of the copper pipe is connected at the centre of the tank. The cold water from the water storage tank enters the copper pipe at the bottom and gently passes through the copper coil in the box. When cold water travels through the copper coil, solar heat is absorbed and the water is heated. The hot water enters the upper half of the water storage tank through the opposite end of the copper pipe. The cold water in the tank is used to replace the hot water. As a result, all the water in the storage tank eventually warmed up. The hot water, which is lighter, remains in the upper half of the tank. The hot water is delivered to a tap from the upper half of the storage tank.
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Embibe Experts Solutions for Chapter: Sources of Energy, Exercise 1: Madhya Pradesh Board-2018
Author:Embibe Experts
Embibe Experts Science Solutions for Exercise - Embibe Experts Solutions for Chapter: Sources of Energy, Exercise 1: Madhya Pradesh Board-2018
Attempt the free practice questions on Chapter 14: Sources of Energy, Exercise 1: Madhya Pradesh Board-2018 with hints and solutions to strengthen your understanding. EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE solutions are prepared by Experienced Embibe Experts.
Questions from Embibe Experts Solutions for Chapter: Sources of Energy, Exercise 1: Madhya Pradesh Board-2018 with Hints & Solutions