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Collaborative project: Transformation of cooling management & cooling of fruit storage rooms into the digital age by means of simulative and practical system comparison - subproject 2 (DyNatCool)
Project
Project code: 28RF5135
Contract period: 01.06.2022
- 31.05.2025
Budget: 187,155 Euro
Purpose of research: Applied research
Keywords: economy, secondary crop ingredients, quality control, value chains, energetic restructuring/modernisation, pome, fruit production, energy efficiency
Long-term cold stores for fruit (particularly apples and pears) are operated for most of the operating hours only in the partial load range. The design of such refrigeration systems is based on linear calculations of the high heat load in the short cooling phase. In the project, a calculation adapted to the cooling application and verification of the transient heat loads and the derivation of a dynamic cooling curve are carried out. In addition, the influence of the cooling phase on the energy efficiency and quality retention of the stored products is scientifically examined. These investigations on product physiology are the basis for a subsequent fundamental refrigeration system comparison with reduced refrigeration capacity and simultaneous monitoring of the energy consumption of the refrigeration system. The requirements of the F-Gas Regulation have a major impact on current and future refrigerant and system choices. The alternative refrigerants CO2 (R744) with direct cooling and propane (R290) with indirect cooling are refrigerants of the future for fruit and vegetable cold stores. These technologies need to be compared scientifically and the optimum refrigeration system (energy requirement and quality retention) defined. The overall goal implementation takes place in the implementation/measurement of two demonstration systems with reduced cooling capacity and the development of a demonstration-comparison-apple-tool between CO2 and propane system.
Section overview
Subjects
- Arboriculture
- Food Processing
- Resource management
Funding programme
Excutive institution
Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB)
Funding institution
Project management agencies
Associated projects: DyNatCool
- Collaborative project: Transformation of cooling management & cooling of fruit storage rooms into the digital age by means of simulative and practical system comparison - subproject 1
- Collaborative project: Transformation of cooling management & cooling of fruit storage rooms into the digital age by means of simulative and practical system comparison - subproject 3
- Collaborative project: Transformation of cooling management & cooling of fruit storage rooms into the digital age by means of simulative and practical system comparison - subproject 4
