There's more to energy than joules

By Hans De Keulenaer / Published on Wed, 2006-04-05 15:08
       

Energy is not only about quantity. Its quality is equally important.This minute lecture, inspired by an idea from Camatini & Kester, introduces the concept of exergy, the quality measure for an amount of energy. It uses the example of space heating with various methods: electric heating, fossil-fired boiler and heat pumps.

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