Feasibility study of ammonia-water vapor absorption heat transformer

A. Ertas; P. Gandhidasan; J. J. Luthan

doi:10.1115/1.3231332

Feasibility study of ammonia-water vapor absorption heat transformer

A. Ertas, P. Gandhidasan, J. J. Luthan

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Many industrial sectors reject heat to the atmosphere in the form of hot water with a temperature between 40° and 70°C. This low grade heat can be upgraded by using a vapor absorption heat transformer (AHT). The present study considers a single stage AHT with binary mixture ofNH₃-H₂O as the working fluid. The performance characteristics of the system have been evaluated by solving the governing mass and energy balance equations using a digital computer. It is found that the permissible range of concentration across the absorber is 0.04 > ΔX > 0.075 for the following operating conditions(Formula Presented).

Original language	English
Pages (from-to)	96-100
Number of pages	5
Journal	Journal of Energy Resources Technology, Transactions of the ASME
Volume	109
Issue number	2
DOIs	https://doi.org/10.1115/1.3231332
State	Published - Jun 1987

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abstract = "Many industrial sectors reject heat to the atmosphere in the form of hot water with a temperature between 40° and 70°C. This low grade heat can be upgraded by using a vapor absorption heat transformer (AHT). The present study considers a single stage AHT with binary mixture ofNH3-H2O as the working fluid. The performance characteristics of the system have been evaluated by solving the governing mass and energy balance equations using a digital computer. It is found that the permissible range of concentration across the absorber is 0.04 > ΔX > 0.075 for the following operating conditions(Formula Presented).",

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AU - Luthan, J. J.

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N2 - Many industrial sectors reject heat to the atmosphere in the form of hot water with a temperature between 40° and 70°C. This low grade heat can be upgraded by using a vapor absorption heat transformer (AHT). The present study considers a single stage AHT with binary mixture ofNH3-H2O as the working fluid. The performance characteristics of the system have been evaluated by solving the governing mass and energy balance equations using a digital computer. It is found that the permissible range of concentration across the absorber is 0.04 > ΔX > 0.075 for the following operating conditions(Formula Presented).

AB - Many industrial sectors reject heat to the atmosphere in the form of hot water with a temperature between 40° and 70°C. This low grade heat can be upgraded by using a vapor absorption heat transformer (AHT). The present study considers a single stage AHT with binary mixture ofNH3-H2O as the working fluid. The performance characteristics of the system have been evaluated by solving the governing mass and energy balance equations using a digital computer. It is found that the permissible range of concentration across the absorber is 0.04 > ΔX > 0.075 for the following operating conditions(Formula Presented).

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Feasibility study of ammonia-water vapor absorption heat transformer

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