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Concepts for energy self-sufficient cooling of direct linear drives

直接线性驱动器的能源自给自足冷却概念

基本信息

批准号：
286416574
负责人：
Professor Dr.-Ing. Eckart Uhlmann
金额：
--
依托单位：
Fachgebiet Werkzeugmaschinen und Fertigungstechnik
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2015
资助国家：
德国
起止时间：
2014-12-31 至 2018-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/286416574?language=en
关键词：
Concepts energy self sufficient cooling

项目摘要

The growing awareness for sustainable production as well as increasing energy prices lead to a rising demand for energy efficient solutions for production facilities. In addition, there is an increasing need for productivity and accuracy of machine tools. A possibility to increase productivity with high accuracy is the use of linear direct drives. To avoid thermally induced geometric errors, the ohmic losses in the primary part of the linear direct drive must be effectively removed by the installed cooling system. The recovery of thermal losses by using thermoelectric generators to increase the energy efficiency of linear directors is an innovative approach.The research project’s objective is the design and analysis of a self-sufficient cooling systems with adaptive characteristics for linear direct drives. The approach is to integrate thermoelectric generators in the heat flow between the primary part and the motor cooling system of the linear direct drive. Based on the thermoelectric Seebeck-effect and in dependency of the adjacent temperature difference an electrical voltage is generated. The extracted power of the electrical consumers corresponds to the difference between the absorbed and emitted heat flow of the thermoelectric generators. Thus, the heat flow to be removed is reduced by the generated power, which is directly fed to the electrical consumers of the motor cooling system. This thermoelectric system has adaptive characteristics, since the cooling power is provided as a function of the induced heat flow - i.e. load-dependent - and thus self-regulated. The present research project is intended to provide the proof of applicability of a self-sufficient cooling system to increase the energy efficiency of linear direct drives in machine tools.

人们对可持续生产的认识日益增强，能源价格不断上涨，导致对生产设施的节能解决方案的需求日益增加。此外，对机床的生产率和精度的需求也越来越大。以高精度提高生产率的一种可能性是使用直线直接驱动。为了避免热引起的几何误差，安装的冷却系统必须有效地消除直线直接驱动器一次部分的欧姆损耗。利用热电机组回收热损失来提高直线导向器的能效是一种创新的方法。研究项目的目标是设计和分析一种具有自适应特性的直线直驱自给式冷却系统。该方法是将热电发电机集成在直线直接驱动的初级部件和电机冷却系统之间的热流中。基于热电塞贝克效应并依赖于相邻的温差，产生电压。电力用户的提取功率对应于热电发电机吸收的热流和发射的热流之间的差值。因此，要移除的热流量被直接馈送到电机冷却系统的电力用户的发电量所减少。这种热电系统具有自适应特性，因为冷却功率是作为感应热流的函数提供的--即依赖于负载--因此是自我调节的。本研究项目旨在证明自给式冷却系统在提高机床直线直驱系统能效方面的适用性。