Meanline performance analysis of radial compressors

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2015

Öğrenci: EMRAH GÜLLÜ

Danışman: MEHMET HALUK AKSEL

Özet:

Due to the complex nature of flow within a compressor, two- and three-dimensional CFD codes are commonly employed in compressor design today and they are leading to levels of efficiency believed to be impossible a few years ago. However, these sophisticated CFD codes are costly and time-consuming. Many improvements can be done in a simple mean-line analysis during the preliminary design of a compressor which leads to fewer hours of fine tuning in CFD codes. Despite its inherent limitations, the one-dimensional flow analysis along a mean-line is a very practical and powerful tool to inexpensively design and analyze a compressor. Mean-line method employs fundamental flow equations along with some empirical models to address the flow losses and some important flow phenomena. The accuracy of the results directly depends on the validity of the empirical models employed. The aim of this thesis is to develop a computer program that can be used to predict the performance of a radial compressor using mean-line method. Validation of the empirical models has been carried out by comparing the results with the experimental data available in the literature.