System Pressure Drop

Some typical values of pressure drops that are considered are:
Condenser pressure drop3.0 to 7.0 psi
Line hydraulic losses
Evaporator to compressor0.1 to 1.5 psi
Compressor to condenser1.0 to 2.0 psi
Condenser to receiver0.5 to 1.0 psi

 This is an important consideration in refrigeration services with low suction pressure to compressor.

Steam Jet Refrigeration

In steam jet refrigeration, water is the refrigerant being evaporated at the low pressures created by the steam jets. These units have a barometric direct contact condenser, Figure 17-6, or a surface condenser as in Figure 17-7. The former system wastes or loses the steam in the water, whereas the latter allows the steam to be condensed and reused. This type of system may ...

Get Ludwig's Applied Process Design for Chemical and Petrochemical Plants, 4th Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.