Thermodynamic analysis of a gas turbine cycle equipped with a non-ideal adiabatic model for a double acting Stirling engine

Korlu, Mahmood; Pirkandi, Jamasb; Maroufi, Arman

doi:10.1016/j.enconman.2017.04.049

Cited by 30 publications

(5 citation statements)

References 14 publications

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“…In principle, the electrical efficiency of a thermal power plant can be enhanced by utilising the onsite available waste heat in another power cycle; this concept is known as topping and bottoming cycle integration. Several ingenious attempts have been made to improve on the performance of the Stirling engine by deploying this approach [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Bahrami et al [14] reported that combining the Stirling engine with the ORC could yield 4-8% increase in its thermal efficiency. Similarly, Korlu et al [15] deployed a Stirling engine as the bottoming cycle to increase the performance of a gas turbine [15]. They utilised the exhaust of the gas turbine to fire the Stirling engine, which led to improving the efficiency of the gas turbine from 23.6% to 38.85%.…”

Section: Introductionmentioning

confidence: 99%

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A techno-enviro-economic assessment of a biomass fuelled micro-CCHP driven by a hybrid Stirling and ORC engine

Udeh

Michailos

Ingham

et al. 2021

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A techno-enviro-economic assessment of a biomass fuelled micro-CCHP driven by a hybrid Stirling and ORC engine

Udeh

Michailos

Ingham

et al. 2021

Energy Conversion and Management

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“…Musa et al (2008) [7] studied the medium and high temperature SOFC performances in hybrid cycle. Korlu et.al (2017) [8] studied Thermodynamic analysis of a gas turbine cycle equipped with a non-ideal adiabatic model for a double acting Stirling engine. Arsalis ( 2008) [9] studied 4 different cycles that operate at design and off-design conditions.…”

Section: Fig 1 -Indirect Hybrid System Of Sofc and Gt Schematic [3]mentioning

confidence: 99%

Exergy and Economic Investigation of Different Strategies of Hybrid Systems Consisting of Gas Turbine (GT) and Solid Oxide Fuel Cell (SOFC)

Pirkandi

Maroufi

Ommian

2022

IJIE

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Gas turbines and solid oxide fuel cells can be combined in two different strategies to create a new high-efficiency hybrid system. In most hybrid systems, the fuel cell is located directly before the combustion chamber (pressurized type) or after the turbine (atmospheric type). The indirect hybrid system is another compound that has been less studied. In this system, the fuel cell and the gas turbine cycle are located in two separate cycles and heat exchange was done by a heat exchanger. The main purpose of this article is to compare the exergy and economic performance of direct and indirect hybrid systems. The results show that the direct hybrid system with pressurized fuel cell has better performance than the other two types of hybrid system. High electrical efficiency, low rate of irreversibility and pollution, and low cost of electricity generation, as well as appropriate cost of purchase, installation and system setup, are the characteristics of this type of hybrid systems. Analyzes of this study showed that the only positive feature of direct atmospheric fuel cell systems is high production capacity and indirect hybrid systems are less efficient than direct systems.

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“…The results of the numerical model are compared to experimental results, and the discrepancy in power output is about 30%. Korlu et al [15] combined the thermodynamic model of both the double-acting Stirling engine and the gas turbine. The gas turbine exhaust gases are used to heat the Stirling engine; therefore, the combined system has a higher efficiency.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Dynamic Analysis of a Small-Scale Double-Acting Four-Cylinder α-Type Stirling Engine

2021

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This research studies the double-acting four-cylinder α-type Stirling engine. A numerical model is developed by combining the thermodynamic model and dynamic model to study the engine performance. The pressure values of the working zone calculated using the thermodynamic model are taken into the dynamic model to calculate the forces acting on the mechanism. Then, the dynamic model further calculates the displacement, velocity, and acceleration of the mechanism link to provide the pistons’ displacements for the thermodynamic model. The model is also validated using experimental data obtained from testing an engine prototype. Under a heating temperature of 1000 K, cooling temperature of 315 K, charged pressure of 10 bar, and loading torque of 0.33 Nm, the engine is capable of achieving a shaft power of 26.0 W at 754 rpm. In addition, the thermal properties and the transient behavior of the engine can be further simulated using the validated numerical model.

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Thermodynamic analysis of a gas turbine cycle equipped with a non-ideal adiabatic model for a double acting Stirling engine

Cited by 30 publications

References 14 publications

A techno-enviro-economic assessment of a biomass fuelled micro-CCHP driven by a hybrid Stirling and ORC engine

A techno-enviro-economic assessment of a biomass fuelled micro-CCHP driven by a hybrid Stirling and ORC engine

Exergy and Economic Investigation of Different Strategies of Hybrid Systems Consisting of Gas Turbine (GT) and Solid Oxide Fuel Cell (SOFC)

Experimental and Dynamic Analysis of a Small-Scale Double-Acting Four-Cylinder α-Type Stirling Engine

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