Towards higher energy efficiency in the power and process industry
When you are boiling water for your coffee in the morning, you are observing how energy is wasted. Water is boiling at 100oC, but the surface of the kettle might be about 150oC. This waste of energy is because the heat transfer from the wall…
What we talk about when we talk about heat pump drying
Drying as preservation method can be used on everything from fruits or berries to medical powders and to pet food. At NTNU we have designed and built a single stage heat pump dryer with carbon dioxide that is more efficient and more environmentally friendly than…