Importance of droplet burning time:
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Essential for desining combustion chamber
For complete combustion, residence time > life time of largest droplet in spray. |
Factors dictating residence time of droplet:
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- Air stream velocity
- Droplet velocity
- Fuel injection angle
- Combustor geometry
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Continuity equation at the surface of the droplet:
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(Figure 32.2) |
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-------(1) |
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Droplet mass is evaluated as follows,
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-------(2) |
Where, D is the droplet diameter at any instant
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