A mechanical windmill can also be coupled to a mechanical heat pump, which can be cheaper than using a gas boiler or an electric heat pump driven by a wind turbine. Heat versus Electricity. On a global scale, thermal energy demand corresponds to one third of the primary energy supply, while electricity demand is only one-fifth.Read More
Steam is also used for building heating, to supply mechanical energy, to control temperatures and pressures, to remove contaminants, and drive mechanical equipment. Once conveyed from the boiler to the point of application, steam heats by direct heating (coming in contact with the product to be heated) or indirect heating through a heat exchanger.Read More
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