Abstract
This manuscript presents a thermo-economic analysis for a trigeneration system integrated by an absorption refrigeration chiller, a gas microturbine, and the heat recovery steam generation subsystem. The effect of the compressor inlet air temperature on the thermo-economic performance of the trigeneration system was studied and analyzed in detail based on a validated model. Then, we determined the critical operating conditions for which the trigeneration system presents the greatest exergy destruction, producing an increase in the costs associated with loss of exergy, relative costs, and operation and maintenance costs. The results also show that the combustion chamber of the gas microturbine is the component with the greatest exergy destruction (29.24%), followed by the generator of the absorption refrigeration chiller (26.25%). In addition, the compressor inlet air temperature increases from 305.15 K to 315.15 K, causing a decrease in the relative cost difference of the evaporator (21.63%). Likewise, the exergo-economic factor in the heat exchanger and generator presented an increase of 6.53% and 2.84%, respectively.
Highlights
The increase in global warming, adding to the scarcity of fossil fuels, has motivated the development of new technologies to improve the efficiency of existing processes in power plants [1,2]
The main contribution of this paper is to present a parametric study conducted in a trigeneration system integrated by a Li-Br absorption refrigeration system (ARS), a gas microturbine, and a waste heat recovery, to study the effect of inlet gas compressor temperature on the energy, exergy and termo-economic indicator
The results show that the combustion chamber of the gas microturbine is the component with the greatest exergy destruction (29.24%), followed by the generator of the ARS (26.25%)
Summary
The increase in global warming, adding to the scarcity of fossil fuels, has motivated the development of new technologies to improve the efficiency of existing processes in power plants [1,2]. Researchers have been working to increase the potential of this type of energy generation process through heat recovery under the steam generator, organic Rankine cycles [3], and absorption chillers [4,5]. It is possible to feed this type of device with waste heat or some other renewable energy source such as solar energy [6]. They are systems widely used in the industrial sector because of the lower energy cost production and potential gas emission reduction [7]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
