Description and Specification for Lab Tenders
Astra Scientific Separating and Throttling Calorimeter with mini boiler Test Bench.
The experimental closed system vapour content x is a dimensionless ratio
between 0 and 1. It is defined by the ratio of mass of vapour and total
mass. The total mass is calculated from the sum of fluid mass and
vapour mass. If the vapour content is x=0, the evaporation medium is
completely liquid, x=1 means dry saturated vapour, a value in between
means wet vapour with a variable liquid content. Separating and
throttling calorimeters are used to determine the vapour content. In
practice, devices to determine the vapour content are used in steam
power plants, downstream of steam turbines or at steam boilers upstream
of the super heater.
A downstream throttling calorimeter is used to determine vapour contents
between x=0,95 and x=1. The wet vapour is depressurized in this
process. The remaining vapour part is depressurized and then liquefied
in a water-cooled condenser and also collected in a measuring cup. The
two quantities can be used to determine vapour mass and total mass to
calculate the vapour content.
Sensors measure the pressure and temperature before and after
depressurization. The measuring results can be used to determine the
vapour content with the h-s diagram.
FEATURES:
• determining the vapour content using
o a separating calorimeter with cyclone water separator
o a throttling calorimeter with vapour depressurization
• using an h-s diagram
SPECIFICATIONS:
Supplied vapour
• temperature: 240°C
• pressure: 10bar
Safety valve: 10bar
Measuring ranges
• temperature: 0…400°C
• pressure (inlet): 0…16bar
• pressure (outlet): -150…100mbar
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
120V, 60Hz, 1 phase