Isentropic Process (rapid depressurization of a vessel)

 

 

Background:

Isentropic (reversible adiabatic) processes are often desired and are often the processes on which device efficiencies are based. One example of a process that approaches being isentropic is the rapid depressurization of gas in a cylinder. This experiment attempts to demonstrate such a process.

Objectives:

Assignment:

Equipment:

*  The exhaust valve should be a quick opening valve, such as a ball valve or solenoid valve.
**  It is suggested that a bare thermocouple of no larger than about 0.05 mm (2 mil) wire diameter be used, so as to have sufficiently rapid temperature response. This will require either a visual temperature readout or a temperature recorder.

 

 

 

 

 

Measurements:

Demonstration:

Comments:

Questions: