Calculations on the compressed air to an engine cycle

[Eric DUPONT]

it is simpler, more efficient, less polluting to heat the air of a compressed air (or liquid nitrogen) engine before an adiabatic expansion, at a temperature of 500 ° than to use the heat of an internal combustion engine .

[obelix39]

Regarding the use of recovered heat, there are not only hot baths and central heating, there are also industrial uses.

What industrial use are you thinking of? Because having worked a lot in the industry, in various fields, I have not seen many processes that were content with 70 ° C ... hot water for washing in the food industry perhaps, and still ...

I too have worked in the industry (maintenance) and have had plenty of time to work on huge boilers which produce hot water, hot air and even steam from the ambient air and mains water or groundwater. The water in the aquifers and in the network arrives at a temperature of around 12 ° (in my region). By preheating this water to 70 ° with energy recovered by the compression of the air, only the additional energy will be needed to bring this water to the desired temperature. And of course, what you get from compression lightens the energy needed in gas or fuel oil to heat your water.

[obelix39]

it is simpler, more efficient, less polluting to heat the air of a compressed air (or liquid nitrogen) engine before an adiabatic expansion, at a temperature of 500 ° than to use the heat of an internal combustion engine .

So, how do you get 500 ° heat?

[GuyGadebois]

it is simpler, more efficient, less polluting to heat the air of a compressed air (or liquid nitrogen) engine before an adiabatic expansion, at a temperature of 500 ° than to use the heat of an internal combustion engine .

So, how do you get 500 ° heat?

You transform the cold nitrogen into hot with a quantum inverter controlled by nanorobots and Mr Spock.

[Eric DUPONT]

it is simpler, more efficient, less polluting to heat the air of a compressed air (or liquid nitrogen) engine before an adiabatic expansion, at a temperature of 500 ° than to use the heat of an internal combustion engine .

So, how do you get 500 ° heat?

rather than injecting gasoline into an internal combustion engine, you inject it into the compressed air duct which supplies your compressed air engine so that the temperature reaches 500 ° C so you don't have a combustion engine

[obelix39]

it is simpler, more efficient, less polluting to heat the air of a compressed air (or liquid nitrogen) engine before an adiabatic expansion, at a temperature of 500 ° than to use the heat of an internal combustion engine .

So, how do you get 500 ° heat?

rather than injecting gasoline into an internal combustion engine, you inject it into the compressed air duct which supplies your compressed air engine so that the temperature reaches 500 ° C so you don't have a combustion engine

Suddenly, it looks strangely like a turbo engine ...

[sicetaitsimple]

rather than injecting gasoline into an internal combustion engine, you inject it into the compressed air duct which supplies your compressed air engine so that the temperature reaches 500 ° C so you don't have a combustion engine

Yes, finally to say that it is "" simpler, more efficient, less polluting ", it is still going a little fast! Combustion in hyperbaric air atmosphere is certainly known (gas turbines, aviation reactors). ) but it is not really within the reach of the first comer .....

[Eric DUPONT]

in this case with an exchanger we can even use hydrogen.