CAJ | 학술논문

分体壁挂式空调器一般采用PTC这一部件来辅助制热，以提高制热效果及制热速度。在蒸发器部件、底壳风道与贯流风叶所包围的空间里，加装陶瓷PTC会产生一定的异响噪声。在设定同一制热模式下，PTC的不同结构对整机噪声的影响程度不同。本文采用CFD数值模拟与试验测试相结合的方法对PTC结构进行模拟优化和试验验证，完成两种不同结构的陶瓷PTC对噪音影响分析，并梳理出陶瓷PTC结构优化设计及推广应用的一种思路。
분체벽괘식공조기일반채용PTC저일부건래보조제열，이제고제열효과급제열속도。재증발기부건、저각풍도여관류풍협소포위적공간리，가장도자PTC회산생일정적이향조성。재설정동일제열모식하，PTC적불동결구대정궤조성적영향정도불동。본문채용CFD수치모의여시험측시상결합적방법대PTC결구진행모의우화화시험험증，완성량충불동결구적도자PTC대조음영향분석，병소리출도자PTC결구우화설계급추엄응용적일충사로。
Generally, split wall-mounted air conditioner adopts PTC to assist heating, in order to improve heating effect and accelerate heating speed. In the space of the bottom of evaporator, pan and cross-flow fan duct surrounded, the installation of ceramic PTC will result in abnormal sound noise. In the same setting heating mode, different structures of ceramic PTCs have different degrees of influence on the noise of the whole unit. This paper adopts the method which combines the CFD numerical modeling and experimental test to simulate and optimize, and test and validate. Finally, it analyzes the noise influence of the two different structures of ceramic PTC; and puts forward an idea of structure optimization design and application of ceramic PTC.