In A Closed System Filled With Fluid, A Thermodynamic Equilibrium Sets In Between The Fluid And Its Vaporised Phase. The Prevailing Pressure Is Called Vapour Pressure. It Is Substance-Specific And Temperature-Dependent.
When A Fluid Is Heated In A Closed Tank, The Pressure Increases As The Temperature Rises. Theoretically, The Pressure Increase Is Possible Up To The Critical Point At Which The Densities Of The Fluid And Gaseous Phases Are Equal. Fluid And Vapour Are Then No Longer Distinguishable From Each Other. This Knowledge Is Applied In Practice In Process Technology For Freeze Drying Or Pressure Cooking.
Learning Objectives And Experiments
- Recording The Vapour Pressure Curve Of Water
- Presentation Of The Relationship Between Pressure And Temperature In A Closed System
- Temperature And Pressure Measurement
Specification
- Measuring A Vapour Pressure Curve For Saturated Vapour
- Pressure Boiler With Insulating Jacket
- Temperature Limiter And Safety Valve Protect Against Overpressure In The System
- Bourdon Tube Pressure Gauge To Indicate Pressure
- Digital Temperature Display
Technical Specification
- Bourdon Tube Pressure Gauge: -1…24bar
- Temperature Limiter: 200°C
- Safety Valve: 20bar
- Heater: 2kw
- Boiler, Stainless Steel: 2L
Measuring Ranges
- Temperature: 0…200°C
- Pressure: 0…20bar
- 230V, 50Hz, 1 Phase
- 230V, 60Hz, 1 Phase
- 120V, 60Hz, 1 Phase
