Hello Friends,
I want to predict the required heat input/temperature in generator to attain given evaporator temperature.i have evaluated LiBr system performance by assuming the temperature of various component of system.Now i want to find correlation between generator and evaporator temperature.Is there any formula/method available for my problem?
Theoretically, you can go for any temperature higher than ambient temperature. But, higher the generator temperature, higher the COP of the plant.
As you must be aware, theoretical COP of VAR system is multiplication of Carnot efficiency of heat engine working between source and ambient temperatures and COP of heat pump working between ambient and refrigeration temperature.
I hope this helps.
The problem is not simple. There are many factors involved. You should think first of the heat supply source.. \\\\\\\\\\what is the maximum temperature it can reach so as to generate enough water vapour which is to be condensed in the condenser. Then the degree of cooling of the condenser is another issue which depends on the cooling media and ambient conditions. This also goes for the absorber cooling, because its degree of cooling will affect the concentration of LiBr-water solution which is determinant to the cooling process. Also the cooling load on the evaporator is another factor which be carefully studied.
Dear Bhargav,
Have a look on this paper it may help you.
best regards.
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