The efficiency rating indicates the percentage of fuel used (wood) that transforms
into useful heat to warm your home.
Solar thermal technology transforms direct and diffuse solar radiation
into useful heat using a solar collector.
Not exact matches
Also, a
useful trick is to point a hair dryer on low
heat at your face after application, this will warm the foundation and press it
into your face, preventing the soft peach fuzz on your face from clumping.
You will have converted the
heat into useful work in the second scenario, even though the same amount of energy is available as in the first scenario.
He explained that the efficiency of a photovoltaic device is governed by a simple competition: light energy is either converted
into waste
heat or
useful electronic power.
By the time the energy in gasoline has been converted
into useful work, the average car has thrown away fully 85 percent of it in the form of
heat.
Such a machine is called a nuclear reactor, and can convert the nuclear energy
into electricity, shaft horsepower (for submarines, etc.), neighborhood
heating, or lots of other things
useful to civilization.
Methane also is a primary ingredient in natural gas used to
heat homes, and it can be converted
into many
useful products including electricity.
The thermal electric generator then converts the wasted
heat into useful electrical energy to help power auxiliary systems.
Nick Pine suggested that making the shade
into some form of solar collector would keep the
heat from building up, and provide some
useful heat to the living space.
As long as he was on stage sweating away earnestly in an over
heated Senate chamber or railing away at the wicked conspiracy to turn Earth
into Venus, he was a
useful prop.
To gain further insights
into ocean
heat sequestration, it is
useful to look at the regional variations of OHC anomalies.