Energy stored in compressed air?

AI Thread Summary
To calculate the energy stored in compressed air, consider the internal energy change based on thermodynamic properties before and after compression. The process is assumed to be adiabatic, meaning no heat is exchanged with the environment. The energy can be determined by multiplying the internal energy difference by the flow rate of the compressed air. Additionally, the first law of thermodynamics states that the sum of heat energy equals the sum of work done, which is essential for this calculation. Understanding these principles will help in accurately determining the available energy in the compressed air.
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Hi, I am trying to figure out how much energy is stored in compressed air. I have figured out that a device I am looking at compresses about 174 cubic feet per minute into 35 cubic feet and that the temperature would rise from 70 F to 550 F.

I now want to know how much energy, in the form of heat, is available. I am assuming it is an adiabatic process.

Can you help me understand how I calculate the energy?

Thank you!
 
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You can just take the internal energy (after-before) from a table of thermodynamic properties and multiply by the flow rate.
 
according to thermodynamics 1st law sum of heat energy equal to sum of workdone so u have to calculate amount of energy
 
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