TRG-TRC003-EN 13
period two
Refrigerants
notes
In fact, 970.3 Btu must be added to 1 lb of 212°F water to completely transform
it to 1 lb of steam at the same temperature.
Similarly, 244.5.3 kcal (1023 kJ) must be added to 1 kg of 100°C water to
completely transform it to 1 kg of steam at the same temperature.
Conversely, when 1 lb of 212°F steam condenses, it gives off 970.3 Btu of heat
energy in the process. After the steam condenses completely, the removal of
more heat will begin to lower the temperature of the water below 212°F.
Similarly, when 1 kg of 100°C steam condenses, it gives off 244.5 kcal (1023 kJ)
of heat energy in the process. After the steam condenses completely, the
removal of more heat will begin to lower the temperature of the water below
100°C.
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Figure 21
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Figure 22
