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The relationship between flow rate and temperature difference

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  • Essay length: 3193 words
  • Submitted: 22/02/2007
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GCSE Green Plants as Organisms

The first 200 words of this essay...

Investigation of Flow rate and temperature difference

Introduction

My coursework is based on the principle of how an electric shower works. The common assumption is that in order to alter the temperature i.e. increase or decrease it, there is a heating implement in place which does this, but my investigation has proven this is not the variable. There is a heating implement but the heat is kept constant. The temperature of the water coming out of the shower depends on the flow rate of the water.

This investigation also involves the concept of energy transfer. The conservation law of energy states that "energy can neither be created nor destroyed but can only be transferred from 1 body to another through a medium". In this case the energy is being transferred is heat. The transfer is heat energy from the hot water in the metal container by the metal container ( medium - free electrons in metal ) to the water flowing through the pipe.

I am investigating the effect of a changing flow rate on the temperature difference in a pipe. It will be important for me to carry out my experiment precisely and

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