Can be used for thermophotovoltaic surfaces that convert thermal energy into electrical energy
December 8, 2015
Predicting radiative heat transfer between extremely close objects has proven elusive for the past 50 years. Now, Massachusetts Institute of Technology (MIT) mathematicians have derived a formula for determining the maximum amount of heat exchanged between two objects separated by distances shorter than the width of a single hair.
There have been two approaches to capturing the sun’s energy: photovoltaics, to turn sunlight into electricity, or solar thermal systems, to concentrate the sun’s heat to boil water to turn a turbine, or use it directly for hot water or heating. But there’s another approach that was sidelined because nobody found a way to harness it in a practical, economical way.