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Absorption Chiller

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I had a question regarding absorption chillers:

Why must the mixture of water and lithium bromide be cooled by the cooling tower in the Absorber? Is it correct to say that even though the lithium bromide spray attracts the water vapour, the water vapour remains in gaseous form and so the mixture must be cooled to achieve liquid state before entering the generator? If not, wouldn't any remaining heat in the mixture would reduce the amount of heat required from the hot water (source), therefore reducing the total energy consumption?

Image result for engineering mindset absorption chiller


Thank you in advance for the help!


Best regards,



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