Heat transfer to Liquid Nitrogen Droplets during Cyrogenic Freezing of Foods
This work investigates the heat transfer phenomena that occurs when liquid nitrogen droplets fall onto a food surface. A gelatin slab was used as the food material. Liquid nitrogen was dropped on it from a dropper/reservoir system. The temperature of the slab and the droplet evaporation time were...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
| Published: |
1985
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| Online Access: | http://psasir.upm.edu.my/id/eprint/2396/1/Heat_transfer_to_Liquid_Nitrogen_Droplets_during.pdf |
| _version_ | 1796966293275934720 |
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| author | Hassan, Mohd Ali Mat Hashim, Dzulkifly Abdul Rahman, Russly |
| author_facet | Hassan, Mohd Ali Mat Hashim, Dzulkifly Abdul Rahman, Russly |
| author_sort | Hassan, Mohd Ali |
| collection | UPM |
| description | This work investigates the heat transfer phenomena that occurs when liquid nitrogen droplets
fall onto a food surface. A gelatin slab was used as the food material. Liquid nitrogen was dropped on
it from a dropper/reservoir system. The temperature of the slab and the droplet evaporation time
were measured over a period of time. The heat transfer coefficients were calculated from these values.
These are compared with the theoretical predicted values. It is seen that the experimental values are
three to four times higher than the predicted values. However, if the average value of heat transfer
coeff£c£ent is taken over the whole size range as the droplet evaporates, a closer agreement is obtained
- the experimental values being less than twice higher. |
| first_indexed | 2024-03-06T06:58:03Z |
| format | Article |
| id | upm.eprints-2396 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T06:58:03Z |
| publishDate | 1985 |
| record_format | dspace |
| spelling | upm.eprints-23962013-05-27T07:00:48Z http://psasir.upm.edu.my/id/eprint/2396/ Heat transfer to Liquid Nitrogen Droplets during Cyrogenic Freezing of Foods Hassan, Mohd Ali Mat Hashim, Dzulkifly Abdul Rahman, Russly This work investigates the heat transfer phenomena that occurs when liquid nitrogen droplets fall onto a food surface. A gelatin slab was used as the food material. Liquid nitrogen was dropped on it from a dropper/reservoir system. The temperature of the slab and the droplet evaporation time were measured over a period of time. The heat transfer coefficients were calculated from these values. These are compared with the theoretical predicted values. It is seen that the experimental values are three to four times higher than the predicted values. However, if the average value of heat transfer coeff£c£ent is taken over the whole size range as the droplet evaporates, a closer agreement is obtained - the experimental values being less than twice higher. 1985 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/2396/1/Heat_transfer_to_Liquid_Nitrogen_Droplets_during.pdf Hassan, Mohd Ali and Mat Hashim, Dzulkifly and Abdul Rahman, Russly (1985) Heat transfer to Liquid Nitrogen Droplets during Cyrogenic Freezing of Foods. Pertanika, 8 (1). pp. 79-88. English |
| spellingShingle | Hassan, Mohd Ali Mat Hashim, Dzulkifly Abdul Rahman, Russly Heat transfer to Liquid Nitrogen Droplets during Cyrogenic Freezing of Foods |
| title | Heat transfer to Liquid Nitrogen Droplets during
Cyrogenic Freezing of Foods |
| title_full | Heat transfer to Liquid Nitrogen Droplets during
Cyrogenic Freezing of Foods |
| title_fullStr | Heat transfer to Liquid Nitrogen Droplets during
Cyrogenic Freezing of Foods |
| title_full_unstemmed | Heat transfer to Liquid Nitrogen Droplets during
Cyrogenic Freezing of Foods |
| title_short | Heat transfer to Liquid Nitrogen Droplets during
Cyrogenic Freezing of Foods |
| title_sort | heat transfer to liquid nitrogen droplets during cyrogenic freezing of foods |
| url | http://psasir.upm.edu.my/id/eprint/2396/1/Heat_transfer_to_Liquid_Nitrogen_Droplets_during.pdf |
| work_keys_str_mv | AT hassanmohdali heattransfertoliquidnitrogendropletsduringcyrogenicfreezingoffoods AT mathashimdzulkifly heattransfertoliquidnitrogendropletsduringcyrogenicfreezingoffoods AT abdulrahmanrussly heattransfertoliquidnitrogendropletsduringcyrogenicfreezingoffoods |