[PDF] Carbon Dioxide In Ice Rink Refrigeration

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Abstract:

The average energy consumption of one ice rink is around 1000MWh/year, which approximately 69% is occupied by the refrigeration unit and heating demand. With the aim of decreasing the energy consumption, a new concept of refrigeration system with CO2 as a refrigerant has been developed and it is promising to become a high potential next generation for refrigeration system in ice rink.

This thesis is to evaluate a new refrigerant application in ice rink refrigeration system under three different aspects; energy performance, heat recovery potential and economic efficiency. In order to make this evaluation, three main tasks are executed. Firstly, literature review and market statistic are processed to give a general picture of the CO2 development as a refrigerant. Secondly, a software Pack Calculation II is used for the simulations of CO2 refrigeration system and traditional ice rink refrigeration system. Älta ice rink located in Sweden, is chosen as a reference case for simulation’s input data. The simulation results is to compare these system in terms of energy performance and heat recovery potential. Finally, life cycle cost of these systems is calculated to investigate the economic benefits from this new application.

Results from this study show good benefits of the new CO2 application in ice rink. From the market statistics, CO2 has become a successful refrigerant in supermarket food and beverage industry with 1331 CO2 refrigeration system installed until 2011 in Europe (Shecco2012). In ice rink industry, 24 ice rinks have been applied CO2 in the second cycle of refrigeration system; one ice rink in Canada applied a refrigeration system with only CO2 in the first cycle and the distribution system.

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