- #1
hashsback
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Hello all
I wish to simulate hydrogen flow from a high pressure tank 700 bar down to 11 bar via a Pressure relief valve. In practice we notice the hydrogen tank cooling (starting from room temperatures) down drastically as well as the relief valve. My task is to simulate the cooling effect when ambient temperatures at around -20° C, and hence need some working equations to model such a system. I aint no physicist and hence can't grab my head around thermodynamic equations ( isentropic vs isenthalpic) to solve such a system. Although I do understand the concept, I fail to put these equations to numbers.
I have all geometric values and also the flow rates of hydrogen leaving the tank, as well as the starting temperature, pressures and volumes as inputs to my system and my main concern is to calculate (dynamically if possible) the temperature drop of the H2 tank, the PR valve and the gas itself.
The joule-thompson appraoch for hydrogen doesn't satisfy the system in practice.
Your comments are appreciated
I wish to simulate hydrogen flow from a high pressure tank 700 bar down to 11 bar via a Pressure relief valve. In practice we notice the hydrogen tank cooling (starting from room temperatures) down drastically as well as the relief valve. My task is to simulate the cooling effect when ambient temperatures at around -20° C, and hence need some working equations to model such a system. I aint no physicist and hence can't grab my head around thermodynamic equations ( isentropic vs isenthalpic) to solve such a system. Although I do understand the concept, I fail to put these equations to numbers.
I have all geometric values and also the flow rates of hydrogen leaving the tank, as well as the starting temperature, pressures and volumes as inputs to my system and my main concern is to calculate (dynamically if possible) the temperature drop of the H2 tank, the PR valve and the gas itself.
The joule-thompson appraoch for hydrogen doesn't satisfy the system in practice.
Your comments are appreciated