Proposal and 3E (energy, exergy, and exergoeconomic) assessment of a cogeneration system using an organic Rankine cycle and an Absorption Refrigeration System in the Northeast Brazil: Thermodynamic investigation of a facility case study

This work presents the results of the energetic, exergetic and exergoeconomic evaluation of a trigeneration system which is composed of an Organic Rankine Cycle (ORC), a simple effect Absorption Refrigeration System (SRA) and a boiler. The proposed system is driven by the residual heat of an industrial process. A computational code was developed on the EES (Engineering Equation Solver) platform to solve the thermodynamic and exergoeconomic equation of each equipment. The SPECO method (Specific Exergy Costing) was used for the exergoeconomic evaluation. Results indicated which equipment needs optimization in order of priority. The results show that the greatest destruction of exergy occurs in the ORC steam generator (56% of the total), followed by the condenser that presented an exergy destruction of 33%. Conversely, the pump and expander performed better, with low exergy destruction values. The results of the exergoeconomic evaluation also indicate that the steam generator and condenser from ORC need to be optimized before any other equipment, as they obtained the lowest values of the exergoeconomic factor (fk) and the highest values of the specific relative cost (rk).

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Performance evaluation of a combined cycle power plant integrated with organic Rankine cycle and absorption refrigeration system

Cogent Engineering ◽

10.1080/23311916.2018.1451426 ◽

2018 ◽

Vol 5 (1) ◽

pp. 1451426 ◽

Cited By ~ 5

Author(s):

I.H. Njoku ◽

C.O.C. Oko ◽

J.C. Ofodu ◽

Duc Pham

Keyword(s):

Performance Evaluation ◽

Power Plant ◽

Organic Rankine Cycle ◽

Rankine Cycle ◽

Combined Cycle ◽

Absorption Refrigeration ◽

Refrigeration System ◽

Combined Cycle Power Plant ◽

Absorption Refrigeration System

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A novel renewable energy storage system based on reversible SOFC, hydrogen storage, Rankine cycle and absorption refrigeration system

Sustainable Energy Technologies and Assessments ◽

10.1016/j.seta.2022.101978 ◽

2022 ◽

Vol 51 ◽

pp. 101978

Author(s):

Uday Raj Singh ◽

A. Sai Kaushik ◽

Satya Sekhar Bhogilla

Keyword(s):

Renewable Energy ◽

Energy Storage ◽

Hydrogen Storage ◽

Storage System ◽

Rankine Cycle ◽

Energy Storage System ◽

Absorption Refrigeration ◽

Refrigeration System ◽

Absorption Refrigeration System ◽

Renewable Energy Storage

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Energetic, Exergetic and Exergetic Cost Analysis for a Cogeneration System Integrated by an Internal Combustion Engine, HRSG and an Absorption Refrigeration System

Volume 1 ◽

10.1115/esda2004-58052 ◽

2004 ◽

Author(s):

Raul Gonzalez Palomina ◽

Silvia A. Nebra

Keyword(s):

Cost Analysis ◽

Internal Combustion Engine ◽

Combustion Engine ◽

Internal Combustion ◽

System Component ◽

Total System ◽

Absorption Refrigeration ◽

Refrigeration System ◽

Cogeneration System ◽

Absorption Refrigeration System

The objective of this work is to do an energetic, exergetic and thermoeconomic analysis of a cogeneration system. This system is composed of an internal combustion engine, a heat recovery steam generator (HRSG), an absorption refrigeration system (ARS) and a cooling tower (CT). With the use of the mass and energy balances, several parameters of efficiency based in the First Law of Thermodynamics were calculated for the cogeneration system. With the use of the exergy balance, the exergetic efficiencies for the engine, HRSG, ARS, CT and the total system were calculated. Also, the irreversibility contribution of each system component was shown. An optimization was done, having as functional objective the maximization of the difference of the operational incomes and expenses. An exergetic cost analysis was made using the Theory of the Cost Exergetic (TCE). The system in study gets to save up to 28,5% of fuel in comparison with the divided production of heat and electric energy. The largest irreversibility that happened in the cycle is due to the engine, which participates in the average with 78% of the total. The analysis with the TCE showed that the product of the ARS is more expensive in comparison with the process heat and electricity.

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