Stall/surge dynamics of a multi-stage air compressor in response to a load transient of a hybrid solid oxide fuel cell-gas turbine system

Azizi, Mohammad Ali; Brouwer, Jacob

doi:10.1016/j.jpowsour.2017.09.010

Cited by 13 publications

(2 citation statements)

References 30 publications

(28 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A surge occurs when high internal combustion engine speeds are used and may stall the turbocharger [27]. The transient operation of turbocharged diesel engines has also been associated with poor driving as well as gaseous emissions [28].…”

Section: Turbocharging Principlesmentioning

confidence: 99%

Advanced Engine Technologies for Turbochargers Solutions

et al. 2021

View full text Add to dashboard Cite

Research in the process of internal combustion engines shows that their efficiency can be increased through several technical and functional solutions. One of these is turbocharging. For certain engine operating modes, the available energy of the turbine can also be used to drive an electricity generator. The purpose of this paper is to highlight the possibilities and limitations of this solution. For this purpose, several investigations were carried out in the virtual environment with the AMESim program, as well as experimental research on a diesel engine for automobiles and on a stand for testing turbochargers (Turbo Test Pro produced by CIMAT). The article also includes a comparative study between the power and torque of the naturally aspirated internal combustion engine and equipped with a hybrid turbocharger. The results showed that the turbocharger has a very high operating potential and can be coupled with a generator without decreasing the efficiency of the turbocharger or the internal combustion engine. The main result was the generation of electrical power of 115 W at a turbocharger shaft speed of 140,000–160,000 rpm with an electric generator shaft speed of 14,000–16,000 rpm. There are many constructive solutions for electrical turbochargers with the generator positioned between the compressor and the turbine wheel. This paper is presenting a solution of a hybrid turbocharger with the generator positioned and coupled with the compressor wheel on the exterior side.

show abstract

Section: Turbocharging Principlesmentioning

confidence: 99%

Advanced Engine Technologies for Turbochargers Solutions

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Surge and stall are the crucial characteristics of the centrifugal compressor. 20,21 Azizi et al 22 studied the stall/ surge of a multi-stage compressor in a hybrid solid oxide fuel cell-gas turbine system. The results show that the compressor provides a sustained air flow rate during the mild stall/surge event.…”

mentioning

confidence: 99%

Performance study of centrifugal air compressor for proton exchange membrane fuel cell systems

Zhao

Yang

Liu

et al. 2021

Energy Science & Engineering

View full text Add to dashboard Cite

Nowadays, energy and environmental issues have strongly attracted the attention of researchers in these fields. Various clean energy technologies have been proposed and studied. As one highly efficient and clean energy technology, the polymer electrolyte membrane (PEM) fuel cell has been studied in recent years. The significant applications of PEM fuel cells focus on transportation, distributed/stationary, and portable power generation. 1 And the PEM fuel cell becomes the most desirable option for power generation in the 21st century. 2 The air supply system is one of the crucial subsystems in PEM fuel cell systems. 3 The air supply system characteristics have an important influence on the performance of PEM fuel cell systems. Control methods and the effect on the fuel cell output of the air supply system were researched. [4][5][6][7] In air supply systems, compressors are the key devices that significantly affect the air supply system and the characteristics of fuel cells.

show abstract

Stability enhancement optimization method for suppressing speed fluctuation under large-scale speed regulation process of super-high-speed electric air compressor

Wang

et al. 2021

Nonlinear Dyn

View full text Add to dashboard Cite

Stall/surge dynamics of a multi-stage air compressor in response to a load transient of a hybrid solid oxide fuel cell-gas turbine system

Cited by 13 publications

References 30 publications

Advanced Engine Technologies for Turbochargers Solutions

Advanced Engine Technologies for Turbochargers Solutions

Performance study of centrifugal air compressor for proton exchange membrane fuel cell systems

Stability enhancement optimization method for suppressing speed fluctuation under large-scale speed regulation process of super-high-speed electric air compressor

Contact Info

Product

Resources

About