Research On Scheme Of Integrated Thermal And Energy Management System Of Aircraft

With the rapid development of modern military technology, the aircraft in the future put forward higher requirements on stealth, flexibility, maintainability, supersonic cruise etc. However, the existing airborne electromechanical systems are independent development, unable to meet the demand of future aircraft design. Integrated thermal and energy management system integrates traditional disperse airborne electromechanical systems, which is a subsystem integration scheme has the highest degree of integration airborne electromechanical system in the world, greatly enhances the performance of the aircraft. Therefore, the integrated thermal and energy management system is the development direction of integrated aircraft electromechanical system in the future. But the researches of integrated thermal and energy management system at home and abroad were basically covered in the Integrated Vehicle Energy Technology(INVENT) program, rarely on the designment of the integrated thermal and energy management system. In order to solve this problem, this paper mainly focuses on the following researches:First of all, this paper studied the functions of integrated thermal and energy management system should have, elaborated the future aircraft requirements on the performance of the system, put forward the working modes of the system. So the top design concept of integrated thermal and energy management system was obtained based on the above researches.Secondly, according to the top design concept of the system, the integrated thermal and energy management system this article studied was put forward by analyzing the USA advanced integrated thermal management system. And the system project was specifically elaborated. Meanwhile working principles in five modes of the system were researched, and the system boundaries were divided. The top design method of integrated thermal and energy management system was obtained based on the above researches.Thirdly, the mathematical models of the components in integrated thermal and energy management system were built, the simulation platform of integrated thermal and energy management system was established by using Simulink module. Meanwhile the design calculation method of integrated thermal and energy management system was put forward, and carried out on the system simulation platform. Though that way, the component performance parameters of each mode was obtained, and the rationality of the system design was analyzed. According the calculation results, the components of the system were selected. And the typical operating points in the flight envelope were checked. The calculation results showed that, the integrated thermal and energy management system can meet the energy requirements of aircraft in the checked points.Finally, reference to the assessment method of environmental control system of the traditional dispersion airborne electromechanical system, the evaluation system of the integrated thermal and energy management system was established, and the system performance was analyzed through the evaluation system. Then, one optimization method of the integrated thermal and energy management system was put forward. According the optimization method, the integrated thermal and energy management system was preliminary optimized in typical operating points under each mode, so that the deployment of inlet flow rate and fuel flow rate was the most reasonable, and the fuel mass penalties was the lowest in each optimum point.The researches of this paper can provide beneficial reference for the engineering of the integrated thermal and energy management system.