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STEADY UNDER PRESSURE

Table of Methods

Net vapor rate always greater than zero.

 Method

 Type

 Description

 1

 1A
 Direct control of vapor product rate.

 2

 1B
 Control exchanger bypass rate. 'Hot vapor bypass.'

 3

 1A
 Control recycle vapor rate to compressor.

 4

 1A
 Control recycle vapor rate to ejector: ejector non-condensable recycle.

 5

 1A
 Control recycle vapor rate to ejector: ejector discharge recycle.

 6

 1A
 Control make-up ejector load.

 7

 1A
 Control ejector motive steam pressure.

 8

 1E
 Control pre-condenser coolant rate.

 9

 1A
 Control recycle vapor rate to ejector: ejector discharge recycle.

Net vapor rate greater than or equal to zero.

 Method

 Type

 Description

 10

 2C
 Control condensation temperature (pressure).

 11

 2A+
 Control vapor product rate combined with a secondary method.

 12

 2A
 Control make-up vapor supply.

Net vapor rate zero.

 Method

 Type

 Description

 13

 3B
 Control flow to condenser. Condenser at low pressure.

 14

 3B
 Control flow from condenser. Condenser at high pressure.

 15

 3B
Control bypass flow to condensate receiver. 'Hot vapor bypass.'

 16

 3B
 Direct control of liquid product rate.

 17

 3B
 Dual pressure control of bypass and condensate.

 18

 3D
 Control vaporizing coolant level.

 19

 3D
 Control vaporizing coolant temperature (pressure).

 20

 3E
 Control condenser inlet coolant temperature. 'Tempered water.'

 21

 3E
 Control condenser inlet coolant temperature. Air cooler.

 22

 3E
 Control condenser inlet coolant temperature and composition. Evaporative cooler.

 23

 3E
 Control coolant rate.

 24

 3E
 Control of coolant rate. Air cooler.

 25

 3
 Control bypass rate.

 26

 3C
 Control condensation temperature (pressure).


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This page updated 03 April 2000.
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