Protočni spiralni tunel za duboko zamrzavanje prehrambenih proizvoda

undergraduate thesis

• Title (english): Flow spiral freezer for food products
• Author: Karlo Nanaši
• Mentor: Vladimir Soldo (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2025-02-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

U ovom radu proučavaju se tehnologije konzerviranja hrane zamrzavanjem s fokusom na
zamrzavanje u struji hladnog zraka. Fizikalno će se objasniti zašto su upravo IQF zamrzivači,
među koje spada i protočni spiralni tunel za duboko zamrzavanje, jedni od najkorištenijih
zamrzivača u prehrambenoj industriji. Nadalje se objašnjavaju ključne komponente spiralnog
zamrzivača te se za njega određuje toplinsko opterećenje. Naglasak rada je na osmišljavanju
rashladnog procesa za zamrzavanje 2000 kg/h piletine za postrojenje u Varaždinu. Rad sadržava
termodinamički proračun komponenata rashladnog sustava te odabir istih.

Abstract (english)

This thesis examines conservation technologies with a focus on freezing in a cold air stream. It
will physically explain why IQF freezers, including the flow spiral tunnel for deep freezing, are
among the most widely used freezers in the food industry. Furthermore, the key components of
the spiral freezer are explained, and its thermal load is determined. The focus of this paper is on
designing the refrigeration process for the required production capacity of 2000 kg/h of chicken
for the facility in Varaždin. The paper includes a thermodynamic calculation of the refrigeration
system components and their selection.

• Keywords: tehnologije protočnog zamrzavanja; IQF; spiralni zamrzivač
• Keywords (english): freezing in a cold air stream; IQF; flow spiral tunnel
• Language: croatian
• URN:NBN: urn:nbn:hr:235:881385
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2027-02-25
• Created on: 2025-02-25 14:39:11