Modeling and Analysis of a Ship’s Diesel Engine Thermal System

Chen Zuotian,Lu Jia,Dong Qingfeng,Hu Cun,W Qin,L Wang,V Yepes

doi:10.1051/e3sconf/202016506039

Abstract

This article takes the diesel thermal system as the research object, which simplifies the diesel engine system into four subsystems. This article conducts a thermodynamic analysis of the specific equipment of the host thermal system. Simulink tools in MATLAB are used to build simulation models of specific equipment in the thermal system, and a modular model is used to build a subsystem model based on the specific equipment model. Then, the thermal coupling relationship between the subsystems is used to form the thermal system. The overall model obtains the temperature values of the key nodes of the thermal system network, so that it can predict the temperature changes of the thermal pipeline system nodes of the diesel engine under various operating conditions.

Highlights

With the introduction of thermal management [1,2], the requirements for cabin heat distribution are more accurate
It is of great research significance to build a model of the ship'sdiesel thermal system and simulate the thermal characteristics of thediesel thermal system
By analyzing the energy consumption of the thermal system, we establish a mathematical model of the thermal system [7-8], and study the parameter characteristics of the thermal system through computer simulation

Summary

Introduction

With the introduction of thermal management [1,2], the requirements for cabin heat distribution are more accurate. This article simplifies the mainframe thermal system into four subsystems, multiple heat exchange instruments [3-4], connecting pipeline networks and other auxiliary equipment. These systems can complete energy conversion [5-6] and heat transfer. By analyzing the energy consumption of the thermal system, we establish a mathematical model of the thermal system [7-8], and study the parameter characteristics of the thermal system through computer simulation. By analyzing the working process of the subsystems of the thermal system and its main equipment, we establish a mathematical model of the thermal system by simplifying and assuming each link. The system is debugged and analyzed by inputting the boundary conditions and the original parameters, from module debugging to subsystem debugging in order, and debugging the entire system

Thermal system network composition

Findings

Engine heat transfer model