Vapour Pressure of Water - Marcet Boiler

Categories: Engineering Lab Equipment

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 tem...


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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/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 Data
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
UL/CSA optional
LxWxH: 600x400x680mm
Weight: approx. 35kg


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quick overview :

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/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 Data
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
UL/CSA optional
LxWxH: 600x400x680mm
Weight: approx. 35kg

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Product

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