Conceptual Python 3 model to simulate a parallel coupled microturbine using off-the-shelf turbochargers

This Python 3 conceptual model simulates a parallel coupled microturbine at 87 kPa using off-the-shelf turbochargers with LPG gas. The model imports the digitized compressor and turbine maps in CSV format and converts it into matrices by using transfinite interpolation to represent the compressor maps through a refined mesh. The model finds the compressor efficiency and RPM with the mass flow rate and pressure ratio as an input. The mathematical model iterates through a range of pressure ratios to find the corresponding operating point by adhering to the first law of thermodynamics and ensuring that the compressor power is equals to the gas turbine's power. The mathematical model has 4 different simulations to simulate an unrecuperated isobaric system, recuperated isobaric system, an unrecuperated model but with pressure losses in the combustion chamber and lastly, a recuperated model with pressure losses in both the combustion chamber and in the recuperator. The results are represented visually in figures to show the relation between the turbochargers operational range and the power output/efficieny.

本Python 3概念模型通过使用市售的涡轮增压器和液化石油气，模拟了在87 kPa压力下的并联耦合微涡轮机。该模型导入以CSV格式数字化的压缩机及涡轮机图，并通过使用超越插值法将其转换为矩阵，以精细网格形式表征压缩机图。模型以质量流量和压力比作为输入，计算出压缩机的效率及转速。该数学模型遵循热力学第一定律，通过迭代一系列压力比，以找到相应的操作点，并确保压缩机功率等于燃气轮机的功率。数学模型包含4种不同的模拟：未回收等压系统、回收等压系统、未回收模型但考虑燃烧室压力损失，以及最后一种考虑燃烧室和回收器中均有压力损失的回收模型。结果以图表形式呈现，以展示涡轮增压器的工作范围与功率输出/效率之间的关系。