Hlađenje mošta bijelog grožđa za vrijeme fermentacije

undergraduate thesis

• Title (english): Must cooling of white grapes during fermentation
• Author: Maja Kos
• 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 završnom radu razrađena je tema procesa hlađenja mošta od bijelog grožđa za vrijeme fermentacije. U uvodnom dijelu opisan je proces proizvodnje vina te važnost primjene sustava hlađenja u procesu alkoholne fermentacije. U nastavku je opisan proces hlađenja te su navedene radne tvari koje se primjenjuju u tehnici hlađenja. Također su navedene vrste hlađenja kojima se kontrolira temperatura mošta pri provođenju procesa fermentacije. Zatim je proveden termodinamički proračun rashladnog uređaja za posredno hlađenje mošta u posudama od nehrđajućeg čelika, volumena 2000 litara 2 komada i 1000 litara 3 komada. Uređaj za hlađenje se sastoji od četiri osnovne komponente, to su kompresor, kondenzator, prigušni element te isparivač. Termodinamički proračun obuhvaća proračun isparivača te proračun cjevovoda. U završnom dijelu rada je proračunata cirkulacijska pumpa za posredni prijenosnik energije te su prikazane sheme spajanja, automatska regulacija i dispozicijski crtež rashladnog postrojenja.

Abstract (english)

This final thesis covers the cooling process of white grapes during fermentation. The introduction describes winemaking and the importance of employing cooling systems in the process of alcoholic fermentation. The paper provides a description of the cooling process, as well as a list of refrigerants that are used in the cooling technique and types of cooling systems used to control the must’s temperature during fermentation. Furthermore, a thermodynamic calculation was made for indirect cooling of must in stainless steel containers - two of which had a volume of 2000 liters and three a volume of 1000 liters. A cooling device consists of four basic components: a compressor, a condenser, an expansion valve, and an evaporator. The thermodynamic calculation includes calculations for the evaporator and the pipeline. The paper concludes with a calculation of the circulation pump for the indirect energy transporter, and it includes diagrams that show connecting parts, automatic regulation, and a technical drawing of the cooling installation.

• Keywords: tehnologija proizvodnje vina; alkoholna fermentacija; proces hlađenja; proračun isparivača; proračun cirkulacijske pumpe
• Keywords (english): winemaking technology; alcoholic fermentation; cooling process; evaporator calculations; circulation pump calculation
• Language: croatian
• URN:NBN: urn:nbn:hr:235:639873
• 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: 2025-02-21 17:09:56