Road surface mirage: A bunch of hot air?

A load of hot air.

Hot air sauna burns.

A hot air driven thermoacoustic-Stirling engine

Cooling Down Hot Air A Global

The Kyoto Protocol marks a break-through in global warming mitigation policies as it sets legally binding emissions targets for major emitting regions. However, realisation of the Protocol depends on the clarification of several issues one of which is the permissible scope of international emissions trading between signatory countries. Unrestricted trade produces hot air when signatory countrie...

Dehydration Characteristics of Whole Lemons in a Convective Hot Air Dryer

In this study, whole lemons were dried using a laboratory convective hot air dryer and the effects of drying temperature on dehydration behaviour and mass transfer characteristics of the lemons were investigated. The drying experiments were conducted using air temperatures of 50, 60 and 75 °C and air velocity of 1 m/s. It was observed that the drying temperature affected the drying time and...