Essays about: "kylsystem"

Showing result 21 - 25 of 70 essays containing the word kylsystem.

1. 21. Heat Export from Supermarkets : Refrigeration Systems Field Measurements and a Techno-economic Analysis

   University essay from KTH/Energiteknik

   Author : Julia Linnea Hildur Almebäck; Rebecka Magnius; [2022]
   Keywords : Heat Recovery; Heat Export; Supermarkets; Refrigeration Systems; CO2 Transcritical Booster Systems; Energy Efficiency; Värmeåtervinning; värmeexport; livsmedelsbutiker; kylsystem; CO2 transkritiskt boostersystem; energieffektivitet;

   Abstract : Supermarkets have a high energy demand where almost half of the energy is used within the refrigeration system. The refrigeration system utilises a cycle where heat is taken and rejected. The rejected heat could be recovered and utilised for other purposes, such as covering internal heating demand or be exported to other facilities. READ MORE

3. 22. Energy Efficiency Assessment,based on Field Measurements andComputational Simulations : A Swedish Hypermarket’s case study

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Beatriz Corceiro; [2022]
   Keywords : Supermarket; Energy efficiency; Building’s simulation tools; EnergyPlus; CyberMart; Supermarket; Energieffektivitet; Byggnadens simuleringsverktyg; EnergyPlus; CyberMart;

   Abstract : This study aims to compare the energy consumption of a supermarket according to field measurements and results from building’s simulation software. Additionally, measures of energy efficiency to minimize the energy intensity of the supermarket are investigated. READ MORE

4. 23. Data center cooling solutions : A techno-economical case study of a data center in Sweden

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Joel Sjökvist; Fredrik Magnusson; [2022]
   Keywords : Energy systems; Data center cooling; Free cooling; Air cooling; Geothermal cooling; Mechanical cooling; District cooling; Building conversion; Dry cooler; Cooling machine; Borehole; PUE;

   Abstract : Given the coinciding growth-trend in the production of consumer electronics and generation of data, the increase in server halls and data centers, as a means for hosting storage capacity for the generated data, has been prominent over the last decades. The establishment of data centers in already existing infrastructure can entail major changes in terms of energy system design. READ MORE

5. 24. Optimizing Energy System in a Supermarket : A case study analysis

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Filip Josefsson; [2022]
   Keywords : R744; heat recovery; refrigeration system; supermarket; optimization; water-cooled condenser gas cooler; R744; värmeåtervinning; kylsystem; livsmedelsbutik; optimering; vattenkyld kondensor gaskylare;

   Abstract : With more restrictions regarding the use of refrigerants with high GWP-values, refrigeration systems that uses R744 (Carbon dioxide) as a refrigerant increases. Supermarkets are energy intense facilities where the refrigeration system utilize a significant part of the total utilized energy. READ MORE

6. 25. Precision Tailoring Cooling Systems using Linear Regression

   University essay from KTH/Matematisk statistik

   Author : Kajsa Bjelle; Ida Cui; [2021]
   Keywords : Regression analysis; nonlinear regression; linear regression; Levenberg-Marquardt; applied mathematics; friction factor; wavy fin; bachelor thesis; Regressionsanalys; ickelinjär regression; linjär regression; Levenberg-Marquardt; tillämpad matematik; friktionsfaktor; wavy fin; kandidatexamensarbete;

   Abstract : This bachelor thesis is written for KTH Royal Institute of Technology and Ymer Technology AB. It examines the friction factor associated with the pressure drop in wavy-fin heat exchangers. Previous studies have used a nonlinear approach for determining the regression coefficients. READ MORE