پديد آورنده :
مهاجر، عليرضا
عنوان :
مطالعه تجربي و تحليلي كمپرسور يك توربو شارژر
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
تبديل انرژي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
سيزده،96ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
احمد صابونچي
استاد مشاور :
مهدي نيلي احمدآبادي
توصيفگر ها :
بستر آزمون , پرخوران , كمپرسور گريز از مركز , منحني عملكرد , شبيه سازي يك بعدي , پيش بيني عملكرد
تاريخ نمايه سازي :
13/2/92
استاد داور :
محمدرضا سليم پور، احمدرضا صداقت
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Experimental and Analytical Investigation of a Turbocharger Centrifugal Compressor Alireza Mohajer a mohajer@chmail ir Date of Submission 2013 01 22 Department of Mechanical Engineering Isfahan University of Technology Isfahan Iran Degree M Sc Language Farsi Supervisor Ahamd Saboonchi ahmadsab@cc iut ac ir Abstract In the automotive industry especially in the heavy vehicles and diesel engines turbocharger is used generally Because of fluctuating nature of the diesel engine operation the surge occurs for turbocharger compressor This condition causes the efficiency to decreases and compressor instability to occur So it is necessary to obtain performance curves and surge line by experiments The purposes of this research are design and installation of heating turbocharger test stand to obtain and plot the performance curve of its centrifugal compressor Then the one dimensional model of the compressor is developed and its results are compared with experiments The test stand used for this work is a gas turbine unit in the Department of Mechanical Engineering thermodynamics lab that is equipped with a turbocharger at the exhaust During this research data logger system is improved from analog to digital for more accurate and faster recording experimental data Also data logger is able to support pressure temperature and rotational speed simultaneously and the test data are monitored and stored in a computer For this purpose a set of sensors available on the system are improved Compressor performance curve pressure ratio mass flow rate and efficiency mass flow rate is obtained from the experiments which are in good agreement with the curves found according to the other references Then the one dimensional modeling is done to predict the performance of centrifugal compressors One dimensional modeling is widely used to estimate the effect of geometric parameters changes on the overall performance of the compressor at design and off design conditions So having a reliable one dimensional model is very important to reduce compressor experiment costs In addition this kind of model is very useful to predict the compressor performance when it operates as a part of multi component system It can also be used to match turbocharger components to integrate and optimize turbocharger engine performance The model estimates the compressor losses by some known theoretical experimental relationships For each compressor component the program calculates the velocities pressures temperatures pressure losses and efficiencies for a specified set of compressor geometry atmospheric conditions rotational speed and fluid mass flow rate Pressure ratio and efficiency versus mass flow rate and rotational speed are calculated at design and off design conditions Finally the one dimensional modeling results are compared with the experimental results which are in good agreement Key words Test stand Turbocharger Centrifugal compressor Performance curves One dimensional modeling Performance prediction
استاد راهنما :
احمد صابونچي
استاد مشاور :
مهدي نيلي احمدآبادي
استاد داور :
محمدرضا سليم پور، احمدرضا صداقت
