| EPSRC Reference: |
GR/K78515/01 |
| Title: |
FLUID DYNAMICS & HEAT TRANSFER MECHANISMS OF HIGH PRESSURE WATER SPRAYS IMPINGING UPON A HEATED SURFACE |
| Principal Investigator: |
Nasr, Professor G |
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| Department: |
Engineering Technologies |
| Organisation: |
Stockport College of FHE |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
18 March 1996 |
Ends: |
17 March 1999 |
Value (£): |
174,580
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Summary on Grant Application Form |
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This investigation is relevant to the design methodology for the spray systems, the improvement in product quality, and reduction of operating costs in process and manufacturing industries which utilize spray cooling of metal surface and also generically to water atomisation for the production of metal powders and fuel sray-water impactation in deisel engines. Although there is very little published information it appears that the most relevant fluid dynamics parameters necessary to characterise spray heat transfer are mass velocity (water flow rate per unit surface area), droplet diameter and water pressure. In all industrial applications of spray cooling there is a need for higher heat transfer from heated plates, which has been addressed by using high mass velocity (typically 50kg.msqs) and higher nozzle pressure (typically 150bar). This investigation systematically investigates the effects of water droplet size distribution , concentration and velocity o the heat transfer charactersitics of the heated plaets at high mass velocity (greater than 15 and less than 50kg/msq2) and high supply pressure (greater than 3 less than 150 bar). The experimental work will have two aspects steady state ( constant surface temparature) cooling experiments and transient (reducing surface temperature) instruments will be used. CFD work will be based upon existing codes but with the addition of refined submodel for cooling under different droplet/surface condition.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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