Comparison of dryer heating methods

2016-09-29View Original

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Compared to steam-heated flash dryers, electrically heated flash dryers have a slower rate of temperature increase, while steam heating results in a faster temperature rise. But theoretically, to evaporate one ton of water, 1.1 tons of steam are required, while only about 75 degrees of electricity is needed. Steam costs 150 yuan per ton, while electricity costs 1 yuan per kilowatt-hour; therefore, using electricity for heating saves 75 yuan compared to using steam to evaporate one ton of water. Here comes the question: why do most manufacturers’ electric heating dryers have such high energy consumption, much higher than that of steam dryers? ? ? ?

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Comparison of dryer heating methods

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