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Guidelines for building or retrofitting an ICE or CURLING RINK

Guidelines for building or retrofitting an ICE or CURLING RINK. How to save 40 % on the energy bill and reduce significantly GreenHouse Gas emissions UMBC 2005 Convention. Canada, the country of ice rinks. In BC alone there are 336 ice and curling rinks (public and private)

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Guidelines for building or retrofitting an ICE or CURLING RINK

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  1. Guidelines for building or retrofittingan ICE or CURLING RINK How to save 40 % on the energy bill and reduce significantly GreenHouse Gas emissions UMBC 2005 Convention

  2. Canada, the country of ice rinks In BC alone there are 336 ice and curling rinks (public and private) Hughes Condon Mahrler: Architects (commissioned by the British Columbia Recreation & Park Association How many rinks are in your territory?

  3. A 25 year life span Ice and curling rinks need to be renewed after 25 years. Of the community (public) facilities in BC: 115 of the 161 ice rinks are already 25+ years old 66 of the the 78 curling rinks are already 25+ years old Hughes Condon Mahrler: Architects (commissioned by the British Columbia Recreation & Park Association How soon will you need to start replacing an old arena or building a new one in your municipality? If your answer is soon, then this clinic is for you.

  4. Where is the expertise? What do you know about ice and curling rinks? • Since ice rink renewal is only every 25 years, chances are that it is not something you have done, or will do often. • This is also the case for municipal experts. • In BC, only three new ice rinks and one new curling rink are presently being planned. (Hughes Condon Mahrler) • In all of Canada, in the past 10 years, there have been an average of only 15 new facilities built per year. Marbek Survey • In all of United States the market of new Rinks construction is less than 200 / year. • Therefore, few professionals have experience in ice and curling rink design.

  5. Up to date information and support CETC, part of Natural Resources Canada, has expertise in the area of ice and curling rinks and is mandated to support and assist municipalities faced with the challenge of constructing or retrofitting arenas. The technology and approach to building and retrofitting ice and curling rinks has evolved. Where can you turn then for expertise and support?

  6. CONDENSER HEATED SPACES HEATED SPACES FAN EXPANSION G G VALVE BRINE PUMP G CONNECTED ICE SWH FACILITIES C.W. Underfloor Heat COMPRESSOR CHILLER HEAT PLANT (GAS/OIL/ELECTRIC) UNDERFLOOR HEAT REFRIGERATION PLANT (ELECTRIC) GAS ELECTRICITY m 3 KW/KWh A refrigeration system An ice or curling rink is not a typical building. In fact, it is more a refrigeration system. This implies industrial procedures that are in a whole different realm than usual building construction. • The fact that an arena needs to simultaneously keep the building warm and the ice cold makes it typically the municipal building with the highest energy consumption • (an average arena has a $ 100,000 energy bill each year) Refrigeration systems are one of the first sources of greenhouse gas emissions, and one of the important areas in which a municipal government can have a positive impact on the environment. Why is a government agency preoccupied with ice rinks?

  7. Three requests you can make This morning you will become aware of three requests that you can make when it comes to investing in a new or retrofit ice or curling rink facility for your municipality.

  8. Heat and refrigeration systems When you put your hand behind your fridge, what do you feel? • The only way to “get cold” is to “remove heat”! • Your fridge is removing heat from the inside compartments. • The refrigeration system in an Ice Rink is removing heat to make ice.

  9. Scientific fact In the process of maintaining an ice surface the refrigeration system extracts quantities of heat.

  10. 400,000 kWh-el Traditional separated system 1,600,000 kWh-eq. CONDENSER 1,200,000 kWh EXPANSION VALVE BRINE PUMP ICE Underfloor Heat COMPRESSOR CHILLER REFRIGERATION PLANT (ELECTRIC) Refrigeration system ELECTRICITY KW/KWh

  11. CONDENSER HEATED SPACES HEATED SPACES FAN EXPANSION G G VALVE BRINE PUMP G CONNECTED ICE SWH FACILITIES C.W. Underfloor Heat COMPRESSOR CHILLER HEAT PLANT (GAS/OIL/ELECTRIC) UNDERFLOOR HEAT REFRIGERATION PLANT (ELECTRIC) GAS ELECTRICITY m 3 KW/KWh A modern integrated system

  12. Energy Availability vs. Needs Total Annual Heating Requirements Heat Rejected (High Tº) (140ºF - 200ºF) (Spaceand SWH) Heat Rejected (Low Tº) (60ºF - 100ºF) Note #1: demand for thermal energy is not steady through the day neither through the year

  13. Oversupply • And there is thermal energy left to be sold to third party.

  14. ASK FOR AN INTEGRATED ENERGY SYSTEM Request an integrated energy system makes efficient use of the heat produced via the refrigeration process The heat from the refrigeration process is harnessed to: • meet the heating and hot water needs of the arena • meet other heating needs ex. to heat the municipal pool This first feature will generates from 15 % to 25% of energy saving

  15. The Canadian weather • Our seasons are distinct • It tends to be colder than other climates, especially in the winter, especially in the north What is particular about our Canadian weather?

  16. CONDENSER HEATED SPACES HEATED SPACES FAN EXPANSION G G VALVE G BRINE PUMP CONNECTED ICE SWH FACILITIES C.W. Underfloor Heat CHILLER COMPRESSOR HEAT PLANT (GAS/OIL/ELECTRIC) UNDERFLOOR HEAT REFRIGERATION PLANT (ELECTRIC) GAS ELECTRICITY m 3 KW/KWh 400,000 kWh-el Scientific fact • Even with an optimized operation, it will be energy (heat) left to be rejected. • To be released in the atmosphere this heat has to be hotter than the exterior air temperature. This allows the energy to be transferred to the outside air environment. • High condensing temperature = high condensing pressure = high power consumption

  17. Traditional vs. modern system Traditionally A conventional system would be adusted for hotter temperatures than Canada has. The condensing temperature is fixed all year long, regardless of seasonal temperature changes. Therefore, the energy input is higher than required. Efficient system With the Floating Head Pressure technology the system modulates the condensing temperature based on the outdoor temperature. The result is significant energy savings, especially during the winter months.

  18. ASK FOR A FLOATING HEAD PRESSURE SYSTEM Request a system that has the capability to take advantage of our canadian weather: The Floating Head Pressure Technology With lower condensation temperatures: • The refrigeration unit will consume less power (up to 20% less)

  19. Request a system that reduces GHG What are GreenHouse Gas Emissions? • Greenhouse gases such as carbon dioxide, methane or nitrous oxide are byproducts of human activity • The emission of greenhouse gases is interfering with complex natural systems such as the global climate

  20. Scientific fact Refrigeration systems use synthetic refrigerant. When refrigerant leaks from the system into the environment it is a greenhouse gas emission that is contributing to climatic changes of the planet.

  21. CONDENSER HEATED SPACES HEATED SPACES FAN EXPANSION G G VALVE BRINE PUMP G CONNECTED ICE SWH FACILITIES C.W. Underfloor Heat CHILLER COMPRESSOR HEAT PLANT (GAS/OIL/ELECTRIC) UNDERFLOOR HEAT REFRIGERATION PLANT (ELECTRIC) GAS ELECTRICITY m 3 KW/KWh Traditional vs. modern system Conventional system The average arena uses 500 kg of refrigerant. Conventional « open compressors » result in significant leakage Green system The amount of refrigerant used can be reduced. Semi-hermetic and hermetic systems are available

  22. ASK FOR LESS GGE With reduced leaks: • Less greenhouse gas emissions will be released into the atmosphere • Your municipality is making an effort in environmental responsability Request a system that reduces odds of refrigerant leaks

  23. Moderate Investment Major Investment Minor Investment Low-e ceiling Better controls Desuperheater Optimize ice thickness Efficient lighting Snow pit Nighttime setbacks Process integration Dehumidification Thermal storage Power factor correction Summary State of the art refrigeration systems use at least 40 % less energy to operate and significantly reduce greenhouse gas emissions. You can request an integrated energy system (heating and refrigeration) that takes advantage of ourCanadian climate (Floating Head Pressure) and reduces Greenhouse gas emissions (by reducing refrigerant leaks) Beyond those three core requests, there are additional elements that can make an arena more energy efficient and green: Cold-climate adaptions

  24. When it is your turn to build or retrofit an ice or curling rink, remember: It is possible to turn a conventional ice rink into an energy efficient and environmentally friendly one. It is an opportunity. It is a 25 year design decision. Though expertise is rare you can count on our support. WHAT WILL YOU CHOSE?

  25. CETC-Varennes is providing • Technical expertise • Financial help • Workshop for Community Decision Makers Marius Lavoie - Yves Blanc CTEC-Varennes 1615 Lionel-Boulet Varennes Qc J3X 1S6 (450) 652-4621 marius.lavoie@nrcan.gc.ca yblanc@nrcan.gc.ca http://cetc-varennes.nrcan.gc.ca/

  26. British Columbia O.E.E Recreational Facilities Association of British Columbia OEE Indian and North Affairs Canada

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