Abstract
This work describes the research aimed at determining the value of the basic parameters of fish cutting on treatment with a high-pressure water jet. Assuming a constant feed speed, distance of the nozzle from the processed raw material, and spray angle of the water jet for six diameters of the water nozzles, the supply pressure value was determined. Supply pressure at which the water stream has enough energy to fully cut the muscle flap is also determined. The tests were carried out on samples obtained from rainbow trout, considering the size of the carcasses and the place of cutting. Analysis of the obtained results showed that both the size of the carcass and the cutting site affect the value of the supply pressure. However, regardless of this, the full cut of the lobe without the skin can be obtained by feeding the jet with a pressure of 3.5 MPa. This amount of pressure can easily be achieved using a Karcher pressure washer. To effectively apply this technology to the fish processing industry, it is necessary to extend the tests with further processing parameters such as the feed speed of the nozzle.
About the authors
Maciej Bartłomiej Kasperowicz was born on January 25, 1985, in Białogard, Poland. He received his M.Sc. degree in food processing engineering from Koszalin University of Technology, Poland, in 2009. He completed his doctorate in agricultural engineering from Koszalin University of Technology in 2016. He worked for 2 years as a technologist and foreman at the Royal Greenland SeaFood fish processing plant. He has been working as an assistant professor in Mechanical Department of Koszalin University of Technology since 2011.
Grzegorz Piotr Chomka was born on May 26, 1972, in Pomysku Wielkim in Poland. He received his M.Sc. degree in teaching techniques and computer science from Koszalin University of Technology, Poland, in 1997, and the title of engineer in engineering applications of computers in 1999. He completed his doctorate in the discipline of construction and operation of machines from the Koszalin University of Technology in 2006. Since 1997, he has been working as an assistant/assistant professor/senior lecturer at the mechanical department of the Koszalin University of Technology.
Tadeusz Bil was born on April 24, 1950. In February 1974, he graduated with honors from the university. He received master's degree in mechanical engineering with specialization in control and measurement instruments. In May 1974, he was employed at the Higher School of Engineering in Koszalin. He got his doctoral thesis in September 1978. In February 2009, he submitted his habilitation thesis at the mechanical faculty of the Koszalin University of Technology. His main interests are in the areas of modeling and simulation of mechanism machines and optimization, modeling, methods, and measurement techniques of fish processing.
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