vaporisor

suction valve

process pump

sliding valve

absorber and the generator

a double acting compressor

cooling coils

heat

mechanical energy

electrical energy

double check valve

eductor pump

absorber

primer

controller

The vapour pressure above the solution increases.

The equilibrium constant decreases.

The concentration of the solution decreases.

The solubility of the salt decreases.

Less water molecules leave the solution.

No molecules of water vapour will be able escape from the solution.

Some molecules of water vapour will actually escape from the solution.

No molecules of water vapour will be absorbed back into the solution.

There will be a steady stream of water vapour molecules leaving and entering the solution.

Some molecules of water vapour will actually be absorbed back into the solution."

Going through the expansion valve.

Absorbing water vapour in the absorber.

Going through the discharge valve.

Cooling through the heat exchanger.

Going through the suction valve.

Vacuum Pump

Purge Pickup tube

Purge chamber

Low pressure cut-off

Oil trap

Lower than normal chilled water temperature leaving the evaporator.

Oxidation of Lithium Bromide.

Reduction in capacity of the system.

Crystallization in the heat exchanger.

Corrosion

Add octyl alcohol charge.

Purge the system.

Reduce steam pressure.

Check the dilution cycle timer for correct operation.

Adjust cooling tower control.

At least 24 hours after the compressor is started.

About one half hour after the absorption unit is started.

Simultaneously with the absorption unit.

One half hour before the absorption unit is started.

Only when non-condensable gases are detected in the system.

Act as a drying agent.

Prevent crystallization.

Act as a dispersing agent.

Help the lithium bromide solution absorb non-condensables.

Act as a wetting agent.

To decrease the evaporation point of the refrigerant.

To maintain a minimum load on the system, during periods of low cooling demand.

To pressurize the system.

To maintain the continuous vacuum.

To evaporate the water out of the weak Lithium Bromide.

As water vapour is absorbed by lithium bromide, the vacuum in the evaporator decreases.

The operating cycle in the system is continuous.

The system efficiency is increased by forcing water through a spray header.

Lithium bromide solution has the ability to absorb water vapour readily.

Evacuating the system lowers the boiling point of water.

Ammonia

Freon-22

Lithium Bromide

Water

Strong aqua

To speed the absorption of water vapour.

To decrease contact between absorbent and refrigerant.

To decrease the refrigerant evaporation point.

To force water into a finely divided state.

To keep the cycle pressure constant.