Www.fakengineer.com. CONTENTS 1. INTRODUCTION 2. PRINCIPLE OF OPERATION 3. STRUCTURAL DIFFERENCE 4. TYPES 5. ADVANTAGES AND DISADVANTAGES 6. APPLICATION.

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Presentation transcript:

CONTENTS 1. INTRODUCTION 2. PRINCIPLE OF OPERATION 3. STRUCTURAL DIFFERENCE 4. TYPES 5. ADVANTAGES AND DISADVANTAGES 6. APPLICATION 7. CONCLUSION 8. REFERENCES Bhubaneswar Engineering college 2 MHD Generator

INTRODUCTION i. The production of electrical power utilizing a conducting fluid through an intense magnetic field. ii. Fluid may be gas or liquid metal. iii. A Direct Energy Conversion system. iv. Classified based on the nature of processing of the working fluid. v. Plays an important role in power industry Bhubaneswar Engineering college 3 MHD Generator

Principle of Operation i. The operation is based on the simple principles of Lorentz Force Law. ii. F = q(v × B)  v = velocity of the particle (vector)  q= charge of the particle (scalar)  B = magnetic field (vector) Bhubaneswar Engineering college 4 MHD Generator

Structural differences Bhubaneswar Engineering college 5 MHD Generator

Types of MHD Generators  According to the working fluid and the anticipated heat source: i. Open Cycle MHD Generators ii. Closed Cycle MHD Generators Bhubaneswar Engineering college 6 MHD Generator

OPEN CYCLE SYSTEM  WORKING FLUID IS DISCHARGED TO ATMOSPHERE CLOSE CYCLE SYSTEM  WORKING FLUID IS RECYCLED AND USED AGAIN & AGAIN MHD GeneratorBhubaneswar Engineering college 7

8 MHD Generator

Bhubaneswar Engineering college 9 MHD Generator

Advantages i. Increase in the conversion efficiency. ii. Because of higher efficiency overall generation cost is less. iii. Better fuel utilization. iv. Improved environmental effects. v. Large amount of power generated. vi.No moving parts so more reliable. vii.Reach peak power as soon as started. viii.Produce less pollution. Bhubaneswar Engineering college 10 MHD Generator

Disadvantages i. High operating temperture. ii. High friction & Heat transfer loses. iii. Initial installments are expensive. iv. Needs very powerful magnet. v. Short circuit problem may occur. Bhubaneswar Engineering college 11 MHD Generator

APPLICATION i. Power generation in space craft. ii. Hypersonic wind tunnel experiment. iii. Defence application. iv. Yamoto,a boat solely powered by MHD MHD Generator Bhubaneswar Engineering college 12

Conclusion The extensive use of MHD can help in saving billions of dollars towards fuel prospects of much better fuel utilization. The potential of lower capital costs with increased utilization of invested capital provides also a very important economic incentive. The beneficial environmental aspects of MHD are probably of equal or even greater significance. It simultaneously assures better utilization for our natural resources. It can therefore be claimed that the development of MHD for electric utility power generation is an objective of national significance. Bhubaneswar Engineering college 13 MHD Generator

References      Bhubaneswar Engineering college 14 MHD Generator