Simulation of Wankel Engine Performance Using Commercial Software for Piston Engines

Tartakovsky, Leonid; Baibikov, Vladimir; Gutman, Menachem; Veinblat, Mark; Reif, Jonathan

doi:10.4271/2012-32-0098

Cited by 34 publications

(12 citation statements)

References 7 publications

(12 reference statements)

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“…As the input the piston position of the virtual piston engine (VPE) in relation to the crank-shaft angle a is used in the algorithm the equation used for the virtual piston position: chamber, the approach used in [1] was used to determine the heat transfer coefficient in the work chamber. The [2] states that the heat transfer coefficient (HTC) calculated using the previous method is greater than the value calculated by the commercial piston 1D simulation software by 10 to 15%. Taking this into the consideration, the overall HTC was increased by 15%.…”

Section: Model Preparationmentioning

confidence: 98%

Computational Model of Rotary Engine Thermodynamic Cycle

Drbal¹

2019

AMS

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During the engine prototype design period the performance predictions are the key subject of the development. For the piston reciprocating engines a wide spectrum of the analytical approaches was developed as well as the numerical software (GT-Suite, Ricardo Wave etc.) is being used often. The increasing demand for the high-power output engines with a low displacement and weight for the UAV and marine applications, makes Wankel rotary engine a sensible option. The commercially available software for the performance prediction does not include required algorithms for the rotary engine calculation. This paper provides an approach to be used in the simulation model setup as well as the comparison of the simulation outcome with the measured data.

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Section: Model Preparationmentioning

confidence: 98%

Computational Model of Rotary Engine Thermodynamic Cycle

Drbal¹

2019

AMS

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“…The heat transfer properties are influenced by the different geometric shape of the combustion chamber, the approach used in [1] was used to determine the heat transfer coefficient in the work chamber. The [2] states that the heat transfer coefficient (HTC) calculated using the previous method is greater than the value calculated by the commercial piston 1D simulation software by 10 to 15 %. Taking this into the consideration, the overall HTC was increased by 15 %.…”

Section: Heat Transfer Propertiesmentioning

confidence: 98%

“…The discharge coefficients of the intake and the exhaust system were computed at the major points of the system. Intake and the exhaust port opening and closing discharge coefficients were approximated by the linear function as this approach reduces the time needed for the 3D CFD method and can be used without large error as presented in the [2]. Due to the complexity of the axial intake system on the simulated engine, two simulations were carried out.…”

Section: Flow Simulation Of the Engine Portsmentioning

confidence: 99%

Mathematical modelling of the rotary engine

Drbal¹,

Svída²

2018

Vib. proced.

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The rotary engine of the Wankel type is currently undergoing a renaissance in the combustion engine industry, mainly because of the simplicity of its design and high power to weight ratio. Strong reliability increases the demand in the aero industry where it is used mainly in small aircrafts such as drones. In the engine development process, there is a high demand for 1 dimensional (1D) simulation software which reduces the time of the development. The commercially available software provides a possibility of predicting the performance of the piston-reciprocating engine to a very high level of accuracy given initial conditions. As the demand for the rotary engines isn't comparable to the piston-reciprocating engines, currently commercially available software doesn't include the required equations for the rotary engine prediction calculations. This paper includes an approach for design of the virtual comparable piston engine, that can be used as an initial data source for the calculation of the rotary engine using commercially available software.

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“…Micro-Wankel engines can be fabricated with improved fabrication technology [11]. Attempts have been made to correctly emulate the operation of the Wankel engine [12], but the current application is using steam as the working fluid without internal combustion. Figure 2 shows the theoretical Rankine cycle and the pressure volume diagram of a Rankine cycle.…”

Section: Rankine Cycle With a Reciprocating Expander A Reciprocatingmentioning

confidence: 99%

Small Engines as Bottoming Cycle Steam Expanders for Internal Combustion Engines

Weerasinghe

Hounsham

2017

Journal of Combustion

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Heat recovery bottoming cycles for internal combustion engines have opened new avenues for research into small steam expanders (Stobart and Weerasinghe, 2006). Dependable data for small steam expanders will allow us to predict their suitability as bottoming cycle engines and the fuel economy achieved by using them as bottoming cycles. Present paper is based on results of experiments carried out on small scale Wankel and two-stroke reciprocating engines as air expanders and as steam expanders. A test facility developed at Sussex used for measurements is comprised of a torque, power and speed measurements, electronic actuation of valves, synchronized data acquisition of pressure, and temperatures of steam and inside of the engines for steam and internal combustion cycles. Results are presented for four engine modes, namely, reciprocating engine in uniflow steam expansion mode and air expansion mode and rotary Wankel engine in steam expansion mode and air expansion mode. The air tests will provide base data for friction and motoring effects whereas steam tests will tell how effective the engines will be in this mode. Results for power, torque, and p-V diagrams are compared to determine the change in performance from air expansion mode to steam expansion mode.

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Simulation of Wankel Engine Performance Using Commercial Software for Piston Engines

Cited by 34 publications

References 7 publications

Computational Model of Rotary Engine Thermodynamic Cycle

Computational Model of Rotary Engine Thermodynamic Cycle

Mathematical modelling of the rotary engine

Small Engines as Bottoming Cycle Steam Expanders for Internal Combustion Engines

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