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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-472-4

ISBN Online: 978-1-56700-471-7

3rd Thermal and Fluids Engineering Conference (TFEC)
March, 4–7, 2018, Fort Lauderdale, FL, USA

COMPARISON OF AN ADIABATIC AND DIABATIC ABSORPTION SYSTEM WORKING WITH AMMONIA-LITHIUM NITRATE AND WATER-LITHIUM BROMIDE AS WORKING FLUIDS

Get access (open in a dialog) pages 1585-1589
DOI: 10.1615/TFEC2018.rce.022300

Abstract

This work deals with the comparison of performance for diabatic (isothermal) and adiabatic single-effect absorption systems. Both systems are simulated operating with ammonia-Lithium Nitrate (NH3 - LiNO3) and water-Lithium bromide (H2O-LiBr) as working pairs. Parameters of evaluation are coefficient of performance, circulation ratio and generation temperature. Based on thermodynamic principles, the following results were obtained: The COP is lower for the case of systems working with NH3-LiNO3. Results show that NH3-LiNO3 systems require lower generation temperature to be activated, which makes them attractive in terms of use of solar energy. When comparing these last systems for the case of operation with an adiabatic absorber, the generation temperature is slightly lower.