Blar i NTNU Open på forfatter "Tolstorebrov, Ignat"
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A Study of Ultra-Low Temperature Application for Fish Freezing and Storing
Tolstorebrov, Ignat (Doktoravhandlinger ved NTNU, 1503-8181; 2014:128, Doctoral thesis, 2014)This work was performed in order to get information about the economic benefit of maintaining the quality and increasing the shelf-life of fish using ultra-low temperature (between –30.0 and –85.0 °C). The scope of the ... -
Application Of Refrigeration Technologies For Energy Efficient Production Of Fish Protein Hydrolysates
Sherman, Prem Kumar; Tolstorebrov, Ignat; Widell, Kristina Norne; Hafner, Armin; Nordtvedt, Tom Ståle (Chapter, 2022)Fish protein hydrolysate (FPH) is one of the most efficient and sustainable way to recover the valuable nutrients from fish remaining materials and has a widespread application. However, the production of FPH demands ... -
Challenges of effective chilling of Atlantic salmon in refrigerated sea water: field tests
Tolstorebrov, Ignat; Widell, Kristina Norne; Nordtvedt, Tom Ståle; Eikevik, Trygve Magne (Chapter, 2019)This papers is summing up main challenges which occur at large-scale industrial slaughter houses when chilling Atlantic salmon by refrigerated sea water (RSW). The study includes strategies of efficient chilling in 100 m ... -
CO2 refrigeration system design and optimization for LNG driven cruise ships
Saeed, Muhammad Zahid; Hafner, Armin; Gabrielii, Cecilia H; Tolstorebrov, Ignat; Widell, Kristina Norne (Chapter, 2021)The cruise industry is in the evolution of eco-friendly technologies due to strict environmental regulations. Liquified natural gas (LNG) is an alternative marine fuel. Compared to conventional diesel fuels, LNG offers a ... -
Cold thermal energy storage for industrial CO refrigeration systems using phase change material: An experimental study
Selvnes, Håkon; Allouche, Yosr; Hafner, Armin; Schlemminger, Christian; Tolstorebrov, Ignat (Journal article, 2022)Refrigeration systems in industrial food processing plants are large users of electric energy and often show high peak power consumption. Cold thermal energy storage (CTES) technology integrated into refrigeration systems ... -
Cold thermal energy storage with low-temperature plate freezing of fish on offshore vessels
Verpe, Espen Halvorsen; Tolstorebrov, Ignat; Sevault, Alexis; Hafner, Armin; Ladam, Yves (Chapter, 2019)This paper presents the results of a numerical and experimental study of freezing time for fish in plate freezers, and the potential for improvement by altering fish block thickness and lowering evaporation temperature. ... -
Conceptual study of a portable cooling system based on renewable energy for use on fruits and vegetables
Espedalen, Benjamin Hammer (Master thesis, 2019)Verdens befolkning er i stadig økning hvor flere og flere mennesker tar seg ut av fattigdom hver eneste dag, som et resultat følger det at behovet for nok næringsrik mat øker. India er et land der både innbyggertallet og ... -
Cost Efficient Industrial Heat Recovery through Heat Pumps
Aarnes, Morten Akre (Master thesis, 2016)Industrial waste heat often contains large amounts of useable energy that cannot be utilized in its current form, and has to be used together with a waste heating technology to become useful. With increasing energy prices ... -
Description of atmoshperic freeze-drying process of organic apples using thermo-physical properties
Tolstorebrov, Ignat; Eikevik, Trygve Magne; Petrova, Inna; Shokina, Yulia; Bantle, Michael (Chapter, 2018)This study discusses the influence of temperature and total moisture content on ice fraction in organic apples during atmospheric freeze-drying process. The ice formation of glass transition events were described by Clausius- ... -
Description of atmospheric freeze-drying of brown seaweeds (Saccherina Latissima) with respect to thermal properties and phase transition
Tolstorebrov, Ignat; Eikevik, Trygve Magne; Petrova, Inna; Bantle, Michael (Chapter, 2018)Thermal properties of brown seaweeds (Saccharina latissima) were determined using DSC technique in the temperature range between -150.0 and 50.0 °C. The following phase transitions were detected: glass transitions, incipient ... -
Design and analysis of CO2 trans-critical heat pump systems for increasing of energy efficiency of Li-batteries production
Hong, Jeonghee (Master thesis, 2021)Large amount of emission is expected to be reduced by transitioning from internal combustion engine (ICE) vehicles to electric vehicles (EVs) in the future. The production of Li-ion batteries (LIBs) which is the most ... -
Design and measurement of a CO2 refrigeration system with integrated propane subcooler at high air temperature operations
Bertelsen, Synne Kathinka; Haugsdal, Stine Børslid (Master thesis, 2015)After the rediscovery of CO2 as a prominent, environmentally benign working fluid, several technological modifications for the basic CO2 refrigeration cycle has been reviewed. These have been presented as solutions to the ... -
Design and simulation of a small cold storage with NH3 refrigeration system and CO2 as indirect cooling loop for storing of fresh fruits and vegetables
Bredesen, Tom André (Master thesis, 2019)Målet med denne Masteroppgaven er å studere indiske kuldekjeder for frukt og grønnsaker, for å foreslå hvordan disse kan forbedres med et lite kuldelager som benytter seg av et NH3 kjølesystem med CO2 i ei naturlig ... -
Design of a CO2 heat pump drier with dynamic modelling tools
Jokiel, Michael; Bantle, Michael; Kopp, Christian Andre; Claussen, Ingrid Camilla; Tolstorebrov, Ignat (Chapter, 2019)Drying is an energy and time intensive process which thermal energy demand is mostly provided by fossil resources. Especially in the food processing industry it is important to increase the energy efficiency of drying ... -
Design of a hybrid absorption/compression high temperature heat pump test rig
Bjørvik, Fredrik (Master thesis, 2019)Energiforbruket i verden i dag er økende og produksjonssektoren har en stor andel av energiforbruket (EIA, 2017). 38% av det globale energiforbruket i produksjonssektoren stammer fra dampsystemer. Mye av overskuddsvarmen ... -
Design of refrigeration system for freeze-concentration of fish protein hydrolysates using CO2 as working fluid
Leth-Olsen, Jomar Mandal (Master thesis, 2022)Foredling av fisk etterlater store mengder restmateriale kun benyttet til lavkvalitets biprodukter. I noen tilfeller kan restmaterialet utgjøre over 50% av den totale vekten av hvit fisk. Utnyttelse av den høye næringsmengden ... -
Design og simulering av soldrevet adsorpsjonsbasert ismaskin
Vingelsgård, Erling (Master thesis, 2019)Matsvinn og kjølesystemer med miljøskadelige arbeidsfluider er noen av de største problemene verden står ovenfor med hensyn til global oppvarmning og populasjonsvekst. En tredel av produsert mat blir kastet, og et av ... -
Designing and Implementation of a Plate Freezer Test facility applying R744 at around -50°C
Mposola, Emmanuel (Master thesis, 2023)Klimaendringer er en trussel mot eksistensen av økosystemer og planeten for øvrig, noe som kreves reevaluering av menneskeskapte aktiviteter som over år har bidratt til utarming av ozonlaget og utslipp av klimagasser. Mat ... -
Development and validation of CO2 cooling systems with expansion work recovery
Saeed, Muhammad Zahid (Doctoral theses at NTNU;2024:286, Doctoral thesis, 2024)The 2023 revised strategy of the International Maritime Organization (IMO) emphasises achieving net-zero greenhouse gas emissions within the shipping sector. Notably, nearly 40% of the energy demand in passenger ships is ... -
Development of an ammoniawater absorption-compression heat pump at high temperature operation
Ahrens, Marcel Ulrich (Doctoral theses at NTNU;2023:39, Doctoral thesis, 2022)Decarbonization of the industrial sector is one of the most important measures to tackling global warming. Energy demand and associated greenhouse gas (GHG) emissions are continuously increasing in various industrial ...