CAJ | 학술논문

介绍了换热器传热性能试验台系统的硬件构成、运行原理、软件控制和测量系统.试验台系统由导热油、压缩空气、乙二醇溶液和水4种不同热流体与冷风和冷却水2种冷流体为循环工质的子系统构成,不仅能进行上述热流体对冷风或冷却水的一对一试验,还可以进行并联或串联的2种或3种热流体对冷风的复合型换热器的传热性能测试.控制和测量系统以LabVIEW软件为平台,包括试验数据采集和处理系统以及自动运行与控制系统,借助完善的软件控制与先进测量仪器的相结合,使系统具有结构紧凑,测量精度高,测试范围广,程序界面友好等特点,对于换热器总体传热系数K的不确定度小于5％,为新型换热器的设计和开发提供了可靠的测试平台.
개소료환열기전열성능시험태계통적경건구성、운행원리、연건공제화측량계통.시험태계통유도열유、압축공기、을이순용액화수4충불동열류체여랭풍화냉각수2충랭류체위순배공질적자계통구성,불부능진행상술열류체대랭풍혹냉각수적일대일시험,환가이진행병련혹천련적2충혹3충열류체대랭풍적복합형환열기적전열성능측시.공제화측량계통이LabVIEW연건위평태,포괄시험수거채집화처리계통이급자동운행여공제계통,차조완선적연건공제여선진측량의기적상결합,사계통구유결구긴주,측량정도고,측시범위엄,정서계면우호등특점,대우환열기총체전열계수K적불학정도소우5％,위신형환열기적설계화개발제공료가고적측시평태.
A heat transfer performance testing system is presented with its hardware structure,operation principle,and software control and measurement system.Working fluids of the subsystem include thermal conducting oil,compressed air,glycol water solution and water as the heating fluids,and air and water as the cooling fluids.The heat transfer performance testing of heat exchangers can be conducted not only for a conventional one heating fluid to one cooling fluid,but also for a compound air cooling heat exchanger with two or three heating fluids in parallel or in series. The control and measurement system is implemented based on a LabVIEW software platform, consisting of the data acquisition and process system, and the automotive operation and control system.By using advanced measuring instruments combined with sound computer software control,the testing system has characteristics of a compact structure,high accuracy,a wide range of testing scope and a friendly operation interface.The uncertainty of the total heat transfer coefficient K is less than 5％. The testing system provides a reliable performance testing platform for designing and developing new heat exchangers.