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نویسندگان مقالات پربازدید :
مهندسی حرارتی کاربردی
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • dynamic simulation of multi-unit air conditioners based on two-phase fluid network model

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 922
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     multi-unit air conditioners (muacs) are widely used in light commercial buildings and residential buildings due to their higher thermal comfort and energy efficiency. to investigate the transient characteristics of muacs, a dynamic simulation model with the framework of two-phase fluid network is developed. the state-space forms are used to model the system and components, and the component submodels are embedded in the fluid network model, which makes it possible to update the system model and components submodels independently. in the model of state-space form, the differentials are obtained by taking the inverse of coefficient matrix, and then the state parameters are calculated by integrating the differentials with time. the simulation outputs are compared with the experimental data in the step changes of the compressor speed and electronic expansion valve openings. the comparison shows that the proposed model can catch the dynamic characteristics of muacs with high accuracy. therefore, it can be used as an effective tool to analyze the transient performance and optimize the control algorithm of muacs.

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