Part load performance analysis of recuperated gas turbines considering engine configuration and operation strategy

Kim, T.S.; Hwang, Seonhong

doi:10.1016/j.energy.2005.01.014

Cited by 115 publications

(36 citation statements)

References 14 publications

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“…This trend is due to the fixed turbine exit temperature, i.e., between 873.15 K and 923.15 K for the machines under consideration in Figure 5, and variable speed control to find the optimal operation line to achieve highest possible efficiency at full and part load. The optimal operation line is obtained by matching the compressor and turbine characteristic curves for a set of variables such as rotational speed, pressure ratio, inlet and outlet temperature, mass flow of air and fuel [24,35,36]. As most of the CHP machines operate either at full load or above 50% part load, the variation in the η em,gross , i.e., from the gross mechanical power output to the electrical power output, within this range is little owing to low frictional losses.…”

Section: Mgt Modelmentioning

confidence: 99%

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Generic Combined Heat and Power (CHP) Model for the Concept Phase of Energy Planning Process

Gopisetty

Treffinger

2016

Energies

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Micro gas turbines (MGTs) are regarded as combined heat and power (CHP) units which offer high fuel utilization and low emissions. They are applied in decentralized energy generation. To facilitate the planning process of energy systems, namely in the context of the increasing application of optimization techniques, there is a need for easy-to-parametrize component models with sufficient accuracy which allow a fast computation. In this paper, a model is proposed where the non-linear part load characteristics of the MGT are linearized by means of physical insight of the working principles of turbomachinery. Further, it is shown that the model can be parametrized by the data usually available in spec sheets. With this model a uniform description of MGTs from several manufacturers covering an electrical power range from 30 kW to 333 kW can be obtained. The MGT model was implemented by means of Modelica/Dymola. The resulting MGT system model, comprising further heat exchangers and hydraulic components, was validated using the experimental data of a 65 kW MGT from a trigeneration energy system.

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Section: Mgt Modelmentioning

confidence: 99%

“…This configuration is typical for MGTs. More detailed information to MGTs can be found in [4,24,25].…”

Section: Introductionmentioning

confidence: 99%

Generic Combined Heat and Power (CHP) Model for the Concept Phase of Energy Planning Process

Gopisetty

Treffinger

2016

Energies

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“…The entire GT cycle is based on the compression of air by the compressor, which is then transferred to the combustion chamber. This compressed air is then mixed with fuel to produce high-temperature flue gas (Kim & Hwang, 2006). The power turbine, which is connected to the shaft of the generator for producing the electricity, receives this high-temperature flue gas.…”

Section: Introductionmentioning

confidence: 99%

Effects of Isentropic Efficiency and Enhancing Strategies on Gas Turbine Performance

K.¹,

Rahman²

2013

J MECH ENG SCI

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Owing to their numerous advantages, gas turbine (GT) power plants have become an important technology for power generation. This paper presents a parametric analysis for different configurations of GT plants, considering the effects of isentropic compressor and turbine efficiency, which allows the selection of the optimum GT configuration for the optimum performance of a GT power plant. The computational model was developed utilizing MATLAB software. The simulated results show that the reheat GT configuration has higher power output, whereas the regenerative GT configuration has higher thermal efficiency, when considering the effects of isentropic compressor and turbine efficiency. The maximum thermal efficiency of 52.4% and the maximum power output of 268 MW are obtained with isentropic turbine efficiency. The result reveals that isentropic compressor and turbine efficiency influence significantly the performance of GTs.

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“…The development of aero engines has been closely linked to the development of high temperature performance alloys such as Waspaloy® and Haynes® 282® [2] . In the alloy design, mechanical properties must be balanced with other properties such as weldability for successful application of the alloy.…”

Section: Introductionmentioning

confidence: 99%

Weldability of Ni-Based Superalloys Waspaloy® and Haynes® 282® - A Study Performed with Varestraint Testing

Jacobsson

Andersson

Brederholm³

et al. 2016

Res. Rev. J Mat. Sci

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Part load performance analysis of recuperated gas turbines considering engine configuration and operation strategy

Cited by 115 publications

References 14 publications

Generic Combined Heat and Power (CHP) Model for the Concept Phase of Energy Planning Process

Generic Combined Heat and Power (CHP) Model for the Concept Phase of Energy Planning Process

Effects of Isentropic Efficiency and Enhancing Strategies on Gas Turbine Performance

Weldability of Ni-Based Superalloys Waspaloy® and Haynes® 282® - A Study Performed with Varestraint Testing

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