• Home
  • Stirling engine
    • List of Articles Stirling engine

      • Open Access Article

        1 - Numerical Solution and Evaluation of Variation Power and Efficiency Based on the Degenerator Length and Diameter of Beta-type Stirling Engine
        Nader Rahbar Hadi Kargar Sharifabad علیرضا احمد پور
        The most important part of the Stirling engine that has an important role in improving efficiency, heat recovery. Stirling cycle heat recovery is one of the important parts of that model because of the influence of various parameters is very complex. In terms of physica More
        The most important part of the Stirling engine that has an important role in improving efficiency, heat recovery. Stirling cycle heat recovery is one of the important parts of that model because of the influence of various parameters is very complex. In terms of physical structure, heat recovery from stainless steel sheet, stainless steel net or stacked bars, are made. Over half of the engine cycle, heat recovery heat like a sponge to absorb the heat of the operating gas. In the other half cycle, recovery of heat after the gas, so less heat to ward off the cold the engine, there will be a way to increase engine efficiency. Therefore, the recovery Stirling engine reduces heat loss and thus increasing the engine's efficiency. The development of an appropriate thermodynamic model for beta type Stirling engine, has been the recovery area. This model, predict and optimize power output and performance parameters based on the physical conditions and geometric Stirling engine regenerator requirements. For this purpose, the numerical solution of beta type Stirling engine uses isothermal and adiabatic model is done. To validate the results, the geometric and functional Stirling engine manufactured by General Motors used and the results were compared with published values. Manuscript profile
      • Open Access Article

        2 - Numerical Solution and Evaluation of Variation Power and Efficiency of Conventional and moving regenerator of Beta-type Stirling Engine In the case of Adiabatic with Exchangers Ideal
        Alireza Ahmadpour nader rahbar hadi kargar sharifabad
        The purpose of this research was to develop a thermodynamic model for engine via changing the form of regenerator. In conventional beta-type Stirling the working fluid passes between the compression and expansion space via the bypass of the main cylinder. In the present More
        The purpose of this research was to develop a thermodynamic model for engine via changing the form of regenerator. In conventional beta-type Stirling the working fluid passes between the compression and expansion space via the bypass of the main cylinder. In the present study a new form of regenerator was proposed for the beta-type Stirling engine. In this new form successive homogeneous layers of sguare wire meshes filled the space of displacer piston so that the displacer piston took the role of regenerator and displacer simultaneously. To this end modeling was done using MATLAB software and the obtained results were compared with the published values. Manuscript profile
      • Open Access Article

        3 - Thermodynamic analysis and optimization of the power piston Stirling engine beta can be used to increase the output power and efficiency
        سید بهمن حسین زاده ساداتی Hadi Kargar Sharifabad نادر رهبر
        The purpose of this article is to develop a thermodynamic model appropriate to be piston Stirling engine beta-type deformation is to increase efficiency and output power l. For this purpose, thermodynamic modeling is done in two parts, the first part was isothermal mode More
        The purpose of this article is to develop a thermodynamic model appropriate to be piston Stirling engine beta-type deformation is to increase efficiency and output power l. For this purpose, thermodynamic modeling is done in two parts, the first part was isothermal modeling and then using the results of numerical modeling to model the geometry of adiabatic method is performed. In fact, the results of the first part (modeling isothermal), as initial values of the second part (modeling adiabatic), is used. Modeling was performed using MATLAB software and by changing the diameter of the piston, the heat input, heat output and engine efficiency. The results obtained were compared with published values, compared. Manuscript profile