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首页> 外文期刊>SAE International Journal of Passenger Cars - Mechanical Systems >Application of Magnetocaloric Heat Pumps in Mobile Air-Conditioning
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Application of Magnetocaloric Heat Pumps in Mobile Air-Conditioning

机译：磁热泵在移动空调中的应用

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摘要

Air-conditioning (AC) is an important sub-system in electric vehicles (EVs). AC is responsible for the highest energy consumption among all the auxiliary systems. As the energy is delivered by the batteries, the power consumption for air-conditioning can imply a significant reduction of the vehicle autonomy. Given the actual state of the art and the temperature and power requirements, electrically driven compressors are the most feasible solution. However, vapour-compression systems are reaching their maximum efficiency. Using innovative technologies can improve the performance of standard systems and hereby increase the vehicle autonomy. This paper presents the first steps in the design of a magnetocaloric air-conditioner for an electric minibus. The system will include two reversible magnetocaloric heat pumps, one in the front part of a minibus and one on the rear. The heat rejection system of the power electronics will be coupled to the air-conditioning system. In order to assist the design of the system, a dynamic model has been developed for the cabin, the hydraulic loops and heat exchangers, and the magnetocaloric units. An integrated design of the complete system is necessary, as it will work under dynamic conditions which depend on the thermal load in the cabin. In this paper, the operation conditions of the magnetocaloric units are presented and the design of the magnetocaloric air-conditioner is discussed. This work has been developed under the frame of the European Project ICE which aims to develop an innovative mobile air-conditioning system for EVs based on a magnetocaloric heat pump.
机译：空调（AC）是电动汽车（EV）中的重要子系统。交流电是所有辅助系统中能耗最高的原因。由于能量是通过电池传递的，因此空调的能耗可能会大大降低车辆的自主性。考虑到现有技术的实际水平以及温度和功率要求，电动压缩机是最可行的解决方案。但是，蒸气压缩系统正在达到其最大效率。使用创新技术可以提高标准系统的性能，从而提高车辆的自主性。本文介绍了用于电动小巴的磁热空调设计的第一步。该系统将包括两台可逆磁热泵，一台在小巴的前部，一台在后部。电力电子设备的散热系统将连接到空调系统。为了辅助系统的设计，已经为机舱，液压回路和热交换器以及磁热单元开发了动态模型。完整系统的集成设计是必要的，因为它将在动态条件下工作，该条件取决于机舱中的热负荷。本文介绍了磁热单元的运行条件，并讨论了磁热空调的设计。这项工作是在欧洲项目ICE的框架下进行的，该项目旨在开发一种基于磁热泵的电动汽车创新型移动空调系统。

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