3.6
3.6
3.6.1
In this section we shall see how we might describe the quantity of vapour formed during the vapourisation process and how we might use this in calculations.
Saturated liquid, saturated vapour
Mixture quality
Evaluate the properties of steam Carry out simple calculations to determine the quantity and quality of steam produced
3.6.2
Everyone is familiar with the sight of power station cooling towers.
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Pay particular attention to what occurs inside the boiler where liquid water is heated to produce high pressure steam.
3.6.3
Is all the liquid converted to vapour - would this be a problem if liquid were to remain?
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We need to determine the “quality” of the steam!
3.6.4
In this unit we will continue to investigate the phenomena of phase change, returning again to the process of vaporisation. We will see how we might describe the quantity of vapour formed during the vaporisation process and how we might use this in calculations.
We will review the definitions of a saturated liquid, a saturated vapour and a superheated vapour.