Essays about: "trans-critical CO2"
Showing result 1 - 5 of 7 essays containing the words trans-critical CO2.
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1. Comparative Analysis of Modern Energy Systems for Ice Rinks
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : Ice rinks are highly energy-intensive commercial buildings with an average annual energy consumption of 1,000 MWh, most of it being used to cover the simultaneous heating and cooling demands. The aim of this thesis is to find the most energy efficient energy system for ice rinks by evaluating different system modifications and refrigerants. READ MORE
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2. 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)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
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3. Field Measurements and Modelling Analysis of Integrated Ice Rink Energy Systems
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : Behrn Arena in Örebro, Sweden, is an ice rink facility where the company is interested in ways of improving their current energy system in terms of energy efficiency. Currently, district cooling is purchased to reclaim the waste heat from the ice rink refrigeration system, which is further used as a heat source for local district heating distributor. READ MORE
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4. Parallel CO2 refrigeration system compared to state-ofthe-art solution in supermarket application
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : This thesis compares the performance of two trans-critical CO2 refrigeration systems, the state-of-the-art booster system and the standard parallel system. The main goal is to quantify the efficiency difference between these two systems. By using computer assisted calculations both systems are modelled, then energy results are obtained. READ MORE
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5. Evaluation of CO2 Ice rink heat recovery system performance
University essay from KTH/EnergiteknikAbstract : Ice rinks are the largest energy consumers in terms of public buildings due to their simultaneous need of cooling, heating, ventilation, and lighting for different parts of the building which means that these facilities also have a lot of potential for energy saving. Due to the size of the cooling unit in an ice rink the refrigerant charge can become quite high, which potentially has a big impact on the environment. READ MORE
