Item Description

➤ Measurement of the relationship between temperature and pressure of the saturated vapour in the loop

➤ Convenient control of heat input to the boiler using variable power control

➤ Sight glass in the boiler allows observation of the boiling patterns in the water

➤ Safe operation with pressure relief valve and permanent indication of system pressure

➤ Pressure and temperatures measured can be logged using a PC (optional teaching software available)

Experimental Capabilities

Teaching exercises will enable students to become familiar with the following topics:

Saturation Loop:

➤ observation of the patterns of boiling at the surface of the water

➤ measurement of the temperature of saturated steam over the range of pressures 0 to 7 bar

gauge and comparison of the saturation curves obtained with those published in steam tables.

➤ the concept of a saturation line

➤ the describing equation and linearization

➤ gauge and absolute pressures

➤ temperature scales

➤ the characteristic behavior of a two phase fluid

➤ the effect of rate of response on the accuracy of measurement

Throttling Calorimeter:

➤ determination of the condition of the wet steam (quality of the steam) produced by the

Saturation Pressure Apparatus at different operating pressures.

➤ use of the steady flow energy equation

➤ the two property rule

➤ use of steam tables

➤ the difference in enthalpy between phases – enthalpy of vaporization