Energy, Exergy, and Economic Analysis of a New System for Simultaneous Power Production and Cooling Operating with an Ammonia–Water Mixture

This paper presents the energy, exergy, and economic analysis of a new cogeneration cycle for the simultaneous production of power and cooling operating with an ammonia–water mixture. The proposed system consists of an absorption cooling system integrating a reheater, a separation tank, a compressor...

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Bibliographic Details
Published in:Processes 2024-07, Vol.12 (7), p.1288
Main Authors: Pacheco-Reyes, Alejandro, Jiménez-García, José C., Hernández-Magallanes, J. Alejandro, Shankar, Raman, Rivera, Wilfrido
Format: Article
Language:English
Subjects:
Absorption cooling
Alternative energy sources
Ammonia
Cooling
Cooling loads
Cooling systems
Cost analysis
Economic analysis
Efficiency
Energy utilization
Environmental impact
Exergy
Fossil fuels
Gas expanders
Heat
Heat transmission
Mixtures
Parametric analysis
Performance evaluation
Turbines
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Summary:This paper presents the energy, exergy, and economic analysis of a new cogeneration cycle for the simultaneous production of power and cooling operating with an ammonia–water mixture. The proposed system consists of an absorption cooling system integrating a reheater, a separation tank, a compressor, a turbine, and an expansion valve. In addition, internal rectification is applied, improving the system’s performance. Mass, energy, and exergy balances were applied to each system’s component to evaluate its performance. Additionally, the costs of each component were determined based on economic equations, which take into account mass, heat flows, and temperature differences. A parametric analysis found that the system reached an energy utilization factor of 0.58 and an exergy efficiency of 0.26 using internal rectification at TG = 120 °C, TA = 30 °C, and TE = 10 °C. The power produced by the turbine was 26.28 kW, and the cooling load was 366.8 kW. The output costs were estimated at 0.071 $/kW. The condenser was found to be the most expensive component of the system, contributing 28% of the total cost. On the other hand, it was observed that the generator was the component with the highest exergy destruction, with 38.16 kW.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr12071288