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| HEAT TRANSFER THROUGH VACUUM
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| Determination of heat transfer in radition or Stefan boltzmann. leak tight evacuated cylinder provided with heater at center, heat given by heater is transmitted to cylinder wall & wall temperature raise, which is kept steady by circulating water. If Stefan boltzmann constant is assumed to be known, then heat transfer can be shown proportional fourth power of temp. if heat transfer is known, Stefan boltzmann constant is determined Control panel with necessary measuring instruments.
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