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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Taniyama, Yoshihiro Kabata, Yasuo Hashidate, Yoshio Shioda, Kazunori Katayama, Hitoshi |
| Copyright Year | 2005 |
| Abstract | Most of large electric rotating machines, for example, the generator and the motor adopt the cooling type that the coolant gas such as hydrogen and air is circulated inside. To improve the performance of the machine and the competitiveness of the product, development of cooling technology such as efficient and effective ventilation of coolant gas becomes important. In addition, it is also important to calculate the coolant gas distribution with high accuracy. This is because it is necessary to cancel the increase in the heat density by it. In this study, a new cooling design system for the turbine generator is developed, where calculation accuracy of the coolant gas distribution is developed and calculation time is reduced. The following shows the outline of this technical approach: 1) Development of a method of the fluid network system analysis that satisfy continuous condition and pressure condition in each branch, and considers divergence loss on branch point and convergence loss on joint point by the one dimensional transient fluid analysis. 2) A pressure loss database such as divergence loss on branch point and convergence loss on joint point reflects knowledge by the elemental experiment and 3D-CFD. In this paper, a basic code of the fluid network system analysis is introduced and verified by a one-slot ventilation model with half axial length of actual stator core. |
| Sponsorship | Fluids Engineering Division |
| Starting Page | 605 |
| Ending Page | 612 |
| Page Count | 8 |
| File Format | |
| ISBN | 0791842193 |
| DOI | 10.1115/IMECE2005-80132 |
| e-ISBN | 0791837696 |
| Volume Number | Fluids Engineering |
| Conference Proceedings | ASME 2005 International Mechanical Engineering Congress and Exposition |
| Language | English |
| Publisher Date | 2005-11-05 |
| Publisher Place | Orlando, Florida, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Cooling Computational fluid dynamics Hydrogen Turbogenerators Motors Systems analysis Generators Machinery Pressure Density Engines Transients (dynamics) Design Fluids Heat Databases Stators Ventilation Coolants Product development Accuracy and precision |
| Content Type | Text |
| Resource Type | Article |
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