TE4007 Design of Turbo Machines Syllabus:
TE4007 Design of Turbo Machines Syllabus – Anna University PG Syllabus Regulation 2021
COURSE OBJECTIVES:
1. To elucidate the energy transfer process, Fans laws in Turbo machines.
2. To illustrate the selection and working of Centrifugal Blowers.
3. To classify different types of axial fans and rotor design.
4. To outline the working different compressors and its performance characteristics.
5. To select different fans / blowers / compressors for specific applications.
UNIT – I INTRODUCTION
Energy transfer between fluid and rotor velocity triangles for a generalised turbo machines – velocity triangle. Euler’s equation for turbo machines and its different forms. Degree of reaction in turbomachines – various efficiencies – isentropic, mechanical, thermal, overall and polytropic – fan laws – Dimensionless parameters – Specific speed – Cordier Diagram.
UNIT – II CENTRIFUGAL BLOWERS
Centrifugal Blowers: Theoretical characteristic curves, velocity triangles, losses and hydraulic efficiency, flow through impeller casing, inlet, nozzle, volute, diffusers. Leakage losses, mechanical losses, multi-vane impellers, cross flow fans. Selection of Centrifugal blower for duct flow.
UNIT – III AXIAL FLOW FANS
Rotor design using airfoil theory, vortex theory, cascade effects, degree of reaction, blade twist, stage design, surge and stall, stator and casing, mixed flow impellers. Selection of axial fans / blower for duct flow.
UNIT – IV COMPRESSORS
Reciprocating compressors, Construction Type – open, hermetic and semi sealed, effect of cylinder cooling, heating and friction. Dynamic compressor – centrifugal compressor, velocity triangles, performance characteristics, part load operation, Capacity control. Selection of compressor for different applications.
UNIT – V DESIGN AND APPLICATIONS
Special design and applications of blowers / compressors for air conditioning plants, cooling towers, ventilation systems, booster systems – turbocharger.
TOTAL: 45 PERIODS
COURSE OUTCOMES:
Upon completion of this course, the students will be able to:
1. Analyse the fundamentals of Turbo machinery and solve the problems on Energy Transfer.
2. Categorise the Centrifugal Blowers and Fans for various applications.
3. Summarise the different types of axial fan design and performance.
4. Analyse various compressors based on its performance.
5. Select fans / blowers /compressors for the given applications.
REFERENCES:
1. Austin H. Church, Centrifugal pumps and blowers, John Wiley and Sons, 2017
2. Dixon, Fluid Mechanics, Thermodynamics of turbo machinery Pergamon Press, 1984.
3. Fans & Ventilation A practical guide (Bill) cory WTW, Elsevier, 2005.
4. Jay Matley., Fluid Movers: Pumps, Compressors, Fans and Blowers, McGraw-Hill Publications, 1990.
5. Royce N. Brown, Compressors: Selection and Sizing, Elsevier, 2005.
6. Tony Giampaolo, Compressor Hand Book Principles and Practice, The Fairmont Press, 2010.
7. Yahya S. M., Turbines compressors and fans(4th Edition), Tata McGraw-Hill, 2010.
8. Forsthoffer’s rotating equipment handbooks Volume 3: Compressors, Elsevier Advanced Technolgy, UK, 2005