https://oldena.lpnu.ua/handle/ntb/39546| Title: | Hydrocutting of frozen food products |
| Authors: | Pogrebnyak, Volodymyr |
| Affiliation: | National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine |
| Bibliographic description (Ukraine): | Pogrebnyak A. Hydrocutting of frozen food products / Andriy Pogrebnyak, Volodymyr Pogrebnyak // Ukrainian Journal Of Mechanical Engineering Andmaterials Science. — Lviv : Lviv Politechnic Publishing House, 2017. — Vol 3. — No 1. — P. 1–8. |
| Is part of: | Ukrainian Journal Of Mechanical Engineering Andmaterials Science, 1 (3), 2017 |
| Issue: | 1 |
| Issue Date: | 1-Jan-2017 |
| Submitted date: | 7-May-2017 |
| Publisher: | Lviv Politechnic Publishing House |
| Place of the edition/event: | Lviv |
| Keywords: | jet-shaping head water-jet cutting polymer solution flow hydrodynamic field elastic deformation food products water-polymer jet processing |
| Number of pages: | 8 |
| Page range: | 1-8 |
| Start page: | 1 |
| End page: | 8 |
| Abstract: | The article aims to determine the peculiarities of macromolecule deformation behavior under conditions of a jet-shaping head that would allow to solve the issue related to the mechanism of increasing water-jet cutting power with polymer additions. The roles of longitudinal and transverse velocity gradients in the manifestation of distinctive features of polymer solution flows are analysed. In converging polyethyleneoxide solution flow macromolecules are forced by a hydrodynamic field to rather strong stretching that causes the dynamic structure formation in solutions. There have been studied experimentally velocity fields and their gradients as well as the degree of macromolecule unrolling under pattern conditions of a jet-shaping head in polyethyleneoxide solutions flow. In converging polymer solution flow macromolecules are forced by a hydrodynamic field to rather strong (~ 60 % and more) stretching that causes the field restructuring. The determined regularities of macromolecules behavior in the flow under conditions of a jet-shaping head and manifested in this case effects of elastic deformations have paramount importance in understanding the mechanism of “anomalously” high cutting power of water-polymer jet. The work for the first time makes it possible to explain the nature of increased water-jet cutting power with polymer additions when cutting food products. Understanding the nature of increased cutting power of water-polymer jet will make it possible to develop recommendations on choosing regimes for water-polymer jet processing of food products by cutting. |
| URI: | https://ena.lpnu.ua/handle/ntb/39546 |
| ISSN: | 2411-8001 |
| Copyright owner: | © Національний університет "Львівська політехніка" © Pogrebnyak A., Pogrebnyak V., 2017 |
| References (Ukraine): | [1] Погребняк А. В. Высокоэффективное гидрорезание твердых пищевых продуктов и материалов / А. В. Погребняк // Управление реологическими свойствами пищевых продуктов. – М.: МГУПП, 2008. – С. 173–179. [2] Пат. 74608 Україна, МПК (2012) B 03 B 4/00. Спосіб різання харчових продуктів високошвидкісним гідроабразивним струменем / Е. В. Пономаренко, А. В. Погребняк, М. В. Наумчук. – 2012. – № u201202141, Бюл. № 21. [3] Pogrebnyak, A.V. Research of the process of hydrocutting food products / A. V. Pogrebnyak, G. V. Deynichenko // Scientific journal NRU ITMO Series: Processes and equipment. – 2016. – No. 3(29). – P. 48–62. [4] Ivanyuta, Yu. F. Flow structure of polyethylene oxide solutions in the input zone of a short capillary / Yu. F. Ivanyuta, V. G. Pogrebnyak, N. V. Naumchuk, S. Ya. Frenkel // Inzh.-Fiz. Zh. – 1985. – Vol. 49, No. 4. – P. 614–621. [5] Pogrebnyak, V. G. Ecological technology of creating waterproof screens / V. G. Pogrebnyak, V. S. Voloshin. – Donetsk : Knowledge, 2010. – 482 p. [6] БресткинЮ. В. Эффекты ДЛП полимерных растворов в продольных гидродинамических полях / Ю. В. Бресткин, С. А. Агранова, Н. Е. Дьяконова, В. Г. Погребняк // Высокомолекуляр. соединения. Сер. Б. – 1989. – Т. 31, № 11. – С. 844–846. [7] Brestkin, Yu. V. Dynamic coil–extended chain phase transition in the longitudinal field / Yu. V. Brestkin // Acta Polymerica. – 1987. – Vol. 38, No. 8. – P. 470–477. [8] Peterlin A. Hydrodinamics of macromolecules in a velocity field with longitudinal gradient // J. Polym. Sci. Pt. Polym. Letters. – 1966. – Vol. 4, No. 4. – P. 287–291. [9] Nicolis G. Self-ogganization in nonequilibrium systems / Nicolis, G., Prigogine, I. – New York. London. Sydney. Toronto: AWileuy-Intersclence Publication JohnWiley&Sons, 1977. – 491 p. [10] De Gennes P. G. Coil-stretch thransition of dilute flexible polymers under ultrahigh velocity gradients / P. G. de Gennes // J. Chem. Phys. – 1974. – Vol. 60, No. 12. – P. 5030–5042. |
| References (International): | [1] Pohrebniak A. V. Vysokoeffektivnoe hidrorezanie tverdykh pishchevykh produktov i materialov, A. V. Pohrebniak, Upravlenie reolohicheskimi svoistvami pishchevykh produktov, M., MHUPP, 2008, P. 173–179. [2] Pat. 74608 Ukraine, MPK (2012) B 03 B 4/00. Sposib rizannia kharchovykh produktiv vysokoshvydkisnym hidroabrazyvnym strumenem, E. V. Ponomarenko, A. V. Pohrebniak, M. V. Naumchuk, 2012, № u201202141, Bull. No 21. [3] Pogrebnyak, A.V. Research of the process of hydrocutting food products, A. V. Pogrebnyak, G. V. Deynichenko, Scientific journal NRU ITMO Series: Processes and equipment, 2016, No. 3(29), P. 48–62. [4] Ivanyuta, Yu. F. Flow structure of polyethylene oxide solutions in the input zone of a short capillary, Yu. F. Ivanyuta, V. G. Pogrebnyak, N. V. Naumchuk, S. Ya. Frenkel, Inzh.-Fiz. Zh, 1985, Vol. 49, No. 4, P. 614–621. [5] Pogrebnyak, V. G. Ecological technology of creating waterproof screens, V. G. Pogrebnyak, V. S. Voloshin, Donetsk : Knowledge, 2010, 482 p. [6] BrestkinIu. V. Effekty DLP polimernykh rastvorov v prodolnykh hidrodinamicheskikh poliakh, Iu. V. Brestkin, S. A. Ahranova, N. E. Diakonova, V. H. Pohrebniak, Vysokomolekuliar. soedineniia. Ser. B, 1989, V. 31, No 11, P. 844–846. [7] Brestkin, Yu. V. Dynamic coil–extended chain phase transition in the longitudinal field, Yu. V. Brestkin, Acta Polymerica, 1987, Vol. 38, No. 8, P. 470–477. [8] Peterlin A. Hydrodinamics of macromolecules in a velocity field with longitudinal gradient, J. Polym. Sci. Pt. Polym. Letters, 1966, Vol. 4, No. 4, P. 287–291. [9] Nicolis G. Self-ogganization in nonequilibrium systems, Nicolis, G., Prigogine, I, New York. London. Sydney. Toronto: AWileuy-Intersclence Publication JohnWiley&Sons, 1977, 491 p. [10] De Gennes P. G. Coil-stretch thransition of dilute flexible polymers under ultrahigh velocity gradients, P. G. de Gennes, J. Chem. Phys, 1974, Vol. 60, No. 12, P. 5030–5042. |
| Content type: | Article |
| Appears in Collections: | Ukrainian Journal of Mechanical Engineering And Materials Science. – 2017. – Vol. 3, No. 1 |
| File | Description | Size | Format | |
|---|---|---|---|---|
| UJMEMS_2017v3n1_Pogrebnyak_A-Hydrocutting_of_frozen_food_1-8.pdf | 411.89 kB | Adobe PDF | View/Open | |
| UJMEMS_2017v3n1_Pogrebnyak_A-Hydrocutting_of_frozen_food_1-8__COVER.png | 470.14 kB | image/png | View/Open |
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