<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The design and kinematic scheme of the operation of a rotary external combustion engine with offset shafts have been developed. Expressions are obtained that make it possible to calculate the values of the increasing and decreasing functions of the working volume of the hot and cold cavities with a change in the angle of rotation of the rotor. An expression is obtained for calculating the compression ratio in the cold cavity of a rotary heat engine with an external heat supply. An expression has been determined that makes it possible to calculate the total torque of a rotary external combustion engine. A comparative analysis of the torque values of a rotary heat engine with an external heat supply and a Wankel engine is carried out. An assessment of the efficiency of an external combustion engine with offset shafts is carried out. Based on the thermodynamic calculations using ideal Erickson and Rallis cycles for a rotary external combustion engine, the processes occurring inside the hot and cold cavities of a heat engine are described. The thermodynamic condition parameters at the characteristic points of the cycle are determined and expressions are obtained that determine the thermal efficiency of the ideal Erickson and Rallis cycles in relation to the considered external combustion engine. A method for calculating the ideal cycle for an external combustion engine with offset shafts is presented.</p>
</abstract>

The design and kinematic scheme of the operation of a rotary external combustion engine with offset shafts have been developed. Expressions are obtained that make it possible to calculate the values of the increasing and decreasing functions of the working volume of the hot and cold cavities with a change in the angle of rotation of the rotor. An expression is obtained for calculating the compression ratio in the cold cavity of a rotary heat engine with an external heat supply. An expression has been determined that makes it possible to calculate the total torque of a rotary external combustion engine. A comparative analysis of the torque values of a rotary heat engine with an external heat supply and a Wankel engine is carried out. An assessment of the efficiency of an external combustion engine with offset shafts is carried out. Based on the thermodynamic calculations using ideal Erickson and Rallis cycles for a rotary external combustion engine, the processes occurring inside the hot and cold cavities of a heat engine are described. The thermodynamic condition parameters at the characteristic points of the cycle are determined and expressions are obtained that determine the thermal efficiency of the ideal Erickson and Rallis cycles in relation to the considered external combustion engine. A method for calculating the ideal cycle for an external combustion engine with offset shafts is presented.

Thermodynamic Calculation of a Rotary Engine with External Heat Supply Based on the Ideal Rallis Cycle

Department of Heat Engineering and Power Machinery

Kazan National Research Technical University named after A.N. Tupolev

Acta Mechanica et Automatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The design and kinematic scheme of the operation of a rotary external combustion engine with offset shafts have been developed. Expressions are obtained that...

Thermodynamic Calculation of a Rotary Engine with External Heat Supply Based on the Ideal Rallis Cycle

Published Online: Feb 04, 2022

Page range: 40 - 47

Received: Aug 20, 2021

Accepted: Dec 28, 2021

DOI: https://doi.org/10.2478/ama-2022-0006

Keywords
thermodynamic calculation, ideal cycle, work, heat, external combustion engine

© 2022 Roman A. Usenkov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Thermodynamic Calculation of a Rotary Engine with External Heat Supply Based on the Ideal Rallis Cycle

Published Online: Feb 04, 2022

Page range: 40 - 47

Received: Aug 20, 2021

Accepted: Dec 28, 2021

DOI: https://doi.org/10.2478/ama-2022-0006

Keywordsthermodynamic calculation, ideal cycle, work, heat, external combustion engine

© 2022 Roman A. Usenkov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
thermodynamic calculation, ideal cycle, work, heat, external combustion engine