Pointed out the problems that exist in the daily management of the refrigerant with the aspects of the cooling water,noncondensable gas and the refrigerant water,and presented suggestions to the energy-saving operation.

As the non-condensable gases exist in the system,it may influence the veracity of the whole testing system.

Impact of non-condensable gas on Lithium Bromide absorption chillers and its precautionary management;

Influence of non-condensable gas on mother liquor s evaporation and its elimination measurements;

Herewith,the influence of the non-condensable gas content and the tube surface s degree of supercooling on condensation heat transfer were found for the two kinds of tubes.

This experimental research is to study the changes of refrigerating capacity in an operating direct fired Lithium Bronide absorbing chiller by purging non condensable gases of different type and quantity into the system,when non condensable gases in the absorber reach 9%～10%,refrigerating capacities will be reduced 50%.