• 论文 •

### 新型排气余压利用系统无因次效率研究

1. 1. 内蒙古科技大学 机械工程学院, 包头 014010;
2. 流体动力与机电系统国家重点实验室, 杭州 310027
• 收稿日期:2019-09-11 发布日期:2020-08-27
• 通讯作者: 虞启辉 E-mail:2016988@imust.edu.cn
• 作者简介:虞启辉 男,博士,副教授。主要研究方向:气动系统的节能、测量、仿真与控制,新能源存储与利用技术。
翟建伟 男,硕士研究生。主要研究方向:气动系统的节能、仿真与控制。
• 基金资助:
流体动力与机电系统国家重点实验室开放基金（GZKF-201804）；国家自然科学基金（61765012）；内蒙古自治区自然科学基金（2018BS05003）；内蒙古自治区高等学校科学技术研究项目（NJZZ18139）；内蒙古自治区科技创新引导奖励资金（KCBJ2018031）

### Dimensionless study on efficiency of new exhaust residual pressure utilization system

YU Qihui1,2, ZHAI Jianwei1, TAN Xin1, FANG Guihua1, MENG Jianguo1

1. 1. School of Mechanical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, China;
2. State Key Laboratory of Fluid Power & Mechatronic Systems, Hangzhou 310027, China
• Received:2019-09-11 Published:2020-08-27
• Supported by:
Open Foundation of State Key Laboratory of Fluid Power & Mechatronic Systems (GZKF-201804); National Natural Science Foundation of China (61765012);Natural Science Foundation of Inner Mongolia Autonomous Region of China (2018BS05003); University Science and Technology Research Project of Inner Mongolia Autonomous Region of China (NJZZ18139); Science and Technology Innovation Guidance and Incentive Fund of Inner Mongolia Autonomous Region of China (KCBJ2018031)

Abstract: Using the energy equation, state equation, motion equation and mass flow equation, the basic mathematical model of the cylinder backhaul process of the new exhaust residual pressure utilization system was established. The appropriate reference value is selected to make the mathematical model dimensionless, the software MATLAB/Simulink is used to simulate the dimensionless model, and the influence of each dimensionless parameter on the exhaust recovery efficiency is obtained. From the simulation results, it can be seen that the exhaust recovery efficiency is mainly determined by the dimensionless natural cycle, the dimensionless effective area of the air inlet, the switching criterion and the dimensionless supply pressure of the cylinder. When the switching criterion or the supply pressure of the cylinder increases and the exhaust recovery efficiency decreases, the efficiency can be increased by changing the dimensionless effective area and the dimensionless natural cycle of the air intake. For the determined cylinder drive system, the exhaust recovery efficiency can be improved by changing the volume of the tank.