Spray absorbers in absorption systems using lithium nitrate-ammonia solution

M. Venegas

doi:10.1016/j.ijrefrig.2004.10.005

Spray absorbers in absorption systems using lithium nitrate-ammonia solution

2005-06-01

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DOI：10.1016/j.ijrefrig.2004.10.005

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In the present work, the spray absorption method is studied for the absorption of ammonia refrigerant vapour by lithium nitrate-ammonia solutions. Mass transfer coefficients attainable using the spray absorption method are estimated. In this study the low-pressure absorber of a double-stage absorption refrigeration system is considered. Results show that the mass transferred is maximum (about 60% of the total) during the deceleration period of the drops. This period represents about 13.4% of the time required to reach the equilibrium state at the end of the absorption chamber. The results show that a time-average mass transfer coefficient equal to k(m) = 18.6 X 10(-5) m s(-1) may be attained. (c) 2004 Elsevier Ltd and IIR. All rights reserved.

Keywords:

absorption system

ammonia

solution

nitrate

process

spray

calculation

mass transfer

Spray absorbers in absorption systems using lithium nitrate-ammonia solution

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