Main Effects of Intercooling and Regeneration on Aeronautical Gas Turbine Engines

Andriani, Roberto; Gamma, Fausto; Ghezzi, U.

doi:10.2514/6.2010-6539

Cited by 3 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although isothermal processes are technically difficult to achieve and remain currently theoretical, they are considered in this study for comparison purposes, and to emphasize their additional benefits. Nevertheless, many studies in the literature investigated technical options which are near to isothermal processes such as reheat cycles, 8 intercooling compression, 17 isothermal combustion cycles 32 and cooling compression with water or liquid nitrogen. 33 Triple-stage compression was also considered in the analysis; however, the results did not reflect substantial additional advantage in comparison with dual-stage compression.…”

Section: Option 8 Is the Isothermal Compression Regenerative Isothermmentioning

confidence: 99%

“…On the other hand, several GT-system options can be considered for integration in SHEVs, by combining a basic GT with heat recovery systems and single-stage or multiple-stage compressions and expansions. There have been numerous studies published over the past decade in the academic literature covering a multitude of GT-system configurations and performance analysis in different applications, such as industrial [5][6][7][8][9][10][11][12][13][14][15] and aeronautics 16,17 systems. A survey of these studies confirms that most GT systems are designed on the basis of efficiency optimization, power density optimization or a compromise between the two criteria.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10][11][12][13] Along these lines, aeronautical GT-system studies focused on maximizing the power density because of the high weight-reduction priority constraint for such applications. 17 In both applications, a combination of several measures was required such as the need to increase the turbine inlet temperature and to add intercooler, regenerator and reheat systems in order to achieve the needed optimization. 9,16,17 However, there have been only a few recent papers on GT systems suitable for automotive applications [18][19][20] because of the lack of competitiveness of GT compared with ICE in conventional powertrains.…”

Section: Introductionmentioning

confidence: 99%

“…17 In both applications, a combination of several measures was required such as the need to increase the turbine inlet temperature and to add intercooler, regenerator and reheat systems in order to achieve the needed optimization. 9,16,17 However, there have been only a few recent papers on GT systems suitable for automotive applications [18][19][20] because of the lack of competitiveness of GT compared with ICE in conventional powertrains. Other papers were published around 20 years ago.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Exergo-technological explicit methodology for gas-turbine system optimization of series hybrid electric vehicles

Nader

Mansour

Nemer

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

Significant research efforts have been invested in the automotive industry on hybrid electrified powertrains in order to reduce the dependence of passenger cars on oil. Electrification of powertrains resulted in a wide range of hybrid vehicle architectures. The fuel consumption of these powertrains strongly relies on the energy converter performance, as well as on the energy management strategy deployed on board. This paper investigates the potential of fuel consumption savings of a series hybrid electric vehicle using a gas turbine as an energy converter instead of the conventional internalcombustion engine. An exergo-technological explicit analysis is conducted to identify the best configuration of the gasturbine system. An intercooled regenerative reheat cycle is prioritized, offering higher efficiency and higher power density than those of other investigated gas-turbine systems. A series hybrid electric vehicle model is developed and powertrain components are sized by considering the vehicle performance criteria. Energy consumption simulations are performed over the Worldwide Harmonized Light Vehicles Test Procedure driving cycle using dynamic programming as the global optimal energy management strategy. A sensitivity analysis is also carried out in order to evaluate the impact of the battery size on the fuel consumption, for self-sustaining and plug-in series hybrid electric vehicle configurations. The results show an improvement in the fuel consumption of 22-25% with the gas turbine as the auxiliary power unit in comparison with that of the internal-combustion engine. Consequently, the studied auxiliary power unit for the gas turbine presents a potential for implementation on series hybrid electric vehicles.

show abstract

Section: Option 8 Is the Isothermal Compression Regenerative Isothermmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Exergo-technological explicit methodology for gas-turbine system optimization of series hybrid electric vehicles

Nader

Mansour

Nemer

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…A third modification is using more than one turbine in expanding the combustion gases and reheating the gases in-between the turbines; this has led to reheat cycle [7]. A combination of any two modifications and all modifications in a single cycle has been achieved [8]- [11]. The purpose of the modifications is to improve the efficiency of the simple cycle engine.…”

Section: Introductionmentioning

confidence: 99%

Development and Application of Gas Turbine Performance Analysis Software: Part II – Modified Cycles

Saturday¹,

Ofodu²,

Torbira³

2018

IJCA

View full text Add to dashboard Cite

This paper presents the second part of the development and application of gas turbine performance analysis software. The simple ideal cycle and the real cycle engines were considered in the first paper. Four modifications to the simple cycle engine are considered here. These are regenerative cycle, intercooled cycle, reheat cycle, and the cycle with all three modifications combined. The mathematical models of the performance of each engine cycle is developed and implemented in the developed software. The thermal efficiency and specific fuel consumption (sfc) of each engine cycle over a wide range of pressure ratios are generated and compared. The thermal efficiencies of the intercooled plant and the reheat plant are lower than that of the simple cycle plant; also, their sfc are both higher than that of the simple cycle plant indicating that they are not suitable stand-alone modifications. These two plants also respond to increase in turbine entry temperature slowly. The regenerative cycle provides greater thermal efficiency at lower pressure ratios which decreases to that of the simple cycle plant at the optimum pressure ratio. The sfc of the regenerative cycle is smaller than that of the simple engine cycle, and increases to the value of the simple cycle plant at the optimum pressure ratio. This plant responds to increase in TET greatly; even more than the cycle with all three modifications combined, and is a suitable stand-alone modification to the simple cycle plant. The cycle with all modifications combined has the highest thermal efficiency value at lower pressure ratios which decreases to the simple cycle value at a pressure ratio higher than the optimum pressure ratio. The sfc of this cycle is the lowest and increases to the simple cycle value at a higher pressure ratio. The developed software could form a useful tool in system design.

show abstract

Methodology for TurboGenerator Systems Optimization in Electrified Powertrains

Mansour

Nader

Nemer

2022

Advances in Engine and Powertrain Research and Technology

View full text Add to dashboard Cite

Main Effects of Intercooling and Regeneration on Aeronautical Gas Turbine Engines

Cited by 3 publications

References 5 publications

Exergo-technological explicit methodology for gas-turbine system optimization of series hybrid electric vehicles

Exergo-technological explicit methodology for gas-turbine system optimization of series hybrid electric vehicles

Development and Application of Gas Turbine Performance Analysis Software: Part II – Modified Cycles

Methodology for TurboGenerator Systems Optimization in Electrified Powertrains

Contact Info

Product

Resources

About