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Published byLambert Watkins Modified over 9 years ago
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Calculating k Values for Pipe Insulation By Russell Peterson & Chris Mabey
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Water Heater for the Developing World Minimize heat loss in pipes outside of the fire
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Problem Find out if clothing would be a good insulator for pipes on the water heater. Compare the k values for clothing to those of an emergency blanket and foam pipe insulation.
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Problem Setup Plastic Bottle Insulation T water T surroundings
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Measured Temperatures and Transient Conduction Model to determine h
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Measured Temperatures and Lumped Capacitance Model to determine h
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Calculations
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Conclusion Calculated k values Pipe Insulation= 0.0212 Shirt = 0.0015 Emergency Blanket= 3.84 e -5 Clothes have a good k value but they need to be thick to provide adequate insulation Emergency blanket is an excellent insulator but would be difficult to obtain in developing countries.
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