ASHRAE Journal - March 2012 - 42
2012 Technology Award Case Studies
St-Gédéon (CO2) 2010 – 2011 Season kW/h Sept. 10 Oct. 10 Nov. 10 Dec. 10 Jan. 11 Feb. 11 Mar. 11 Apr. 11 61,560 83,160 89,280 82,080 84,240 61,920 96,480 52,560 611,280 Cost ($) 6,103.15 7,040.23 7,197.65 6,661.33 6,874.00 5,997.25 7,658.28 5,909.00 53,440.89 Backup Cost ($) – – 1,399.95 1,965.90 2,026.46 1,745.96 1,550.77 – 8,689.04 Sept. 10 Oct. 10 Nov. 10 Dec. 10 Jan. 11 Feb. 11 Mar. 11 Apr. 11 Reference NH2/Brine 2010 – 2011 Season kW/h 93,780 97,020 10,3140 130,320 115,560 113,220 93,960 39,600 786,600 Cost ($) 8,101.00 8,157.86 8,742.18 10,947.84 8,667.94 9,918.45 8,380.71 4,669.27 67,615.25 Backup Cost ($) 48.08 1,063.11 367.30 1,144.69 1,850.10 374.43 1,956.06 1,844.48 8,648.25
Table 1: Comparative energy cost for the first year of operation.
Because the concrete slab already existed, we poured 2 in. (51 mm) of new concrete over it to install the new copper tube network (Photo 1, Page 40). The new refrigeration package was built in the factory and delivered on site (Photo 2, Page 40). The main feature of this project is the energy consumption reduction when compared to similar projects using standard ice rink chiller/secondary fluid technologies. Because the sys-
tem uses a part of the total heat reclaim, it covers all hot water needs for the facility at no additional cost. The hot water storage tank delivers 167°F (75°C) water at a constant temperature to the building. During the last season, the facility never ran out of hot water, and it never used back-up heating. The 100% CO2 refrigeration system for the ice rink is also connected to a warm glycol loop through another heat reclaim heat exchanger to recover the rest of the energy output. The
www.info.hotims.com/38000-7
www.info.hotims.com/38000-61
42
ASHRAE Journal
March 2011
ASHRAE Journal - March 2012
Table of Contents for the Digital Edition of ASHRAE Journal - March 2012
ASHRAE Journal - March 2012
Contents
Commentary
Show Coverage
Meetings and Shows
Feature Articles
ASHRAE’s Best: 2012 Technology Awards
Total Energy Wheel Control in a Dedicated OA System
Optimizing Design & Control of Chilled Water Plants Part 4: Chiller & Cooling Tower Selection
Improving DHW System Performance
Technology Award Case Studies:
Ice Rink Uses CO2 System
Standing Columns
Building Sciences
Emerging Technologies
Refrigeration
Special Products
IAQ Applications
People
Products
Classified Advertising
Advertisers Index
ASHRAE Journal - March 2012 - Intro
ASHRAE Journal - March 2012 - ASHRAE Journal - March 2012
ASHRAE Journal - March 2012 - Cover2
ASHRAE Journal - March 2012 - 1
ASHRAE Journal - March 2012 - 2
ASHRAE Journal - March 2012 - Contents
ASHRAE Journal - March 2012 - Commentary
ASHRAE Journal - March 2012 - 5
ASHRAE Journal - March 2012 - Show Coverage
ASHRAE Journal - March 2012 - 7
ASHRAE Journal - March 2012 - 8
ASHRAE Journal - March 2012 - 9
ASHRAE Journal - March 2012 - 10
ASHRAE Journal - March 2012 - 11
ASHRAE Journal - March 2012 - 12
ASHRAE Journal - March 2012 - 13
ASHRAE Journal - March 2012 - 14
ASHRAE Journal - March 2012 - 15
ASHRAE Journal - March 2012 - 16
ASHRAE Journal - March 2012 - 17
ASHRAE Journal - March 2012 - 18
ASHRAE Journal - March 2012 - 19
ASHRAE Journal - March 2012 - 20
ASHRAE Journal - March 2012 - 21
ASHRAE Journal - March 2012 - 22
ASHRAE Journal - March 2012 - 23
ASHRAE Journal - March 2012 - 24
ASHRAE Journal - March 2012 - 25
ASHRAE Journal - March 2012 - Meetings and Shows
ASHRAE Journal - March 2012 - 27
ASHRAE Journal - March 2012 - ASHRAE’s Best: 2012 Technology Awards
ASHRAE Journal - March 2012 - 29
ASHRAE Journal - March 2012 - 30
ASHRAE Journal - March 2012 - 31
ASHRAE Journal - March 2012 - 32
ASHRAE Journal - March 2012 - 33
ASHRAE Journal - March 2012 - 34
ASHRAE Journal - March 2012 - 35
ASHRAE Journal - March 2012 - 36
ASHRAE Journal - March 2012 - 37
ASHRAE Journal - March 2012 - Ice Rink Uses CO2 System
ASHRAE Journal - March 2012 - 39
ASHRAE Journal - March 2012 - 40
ASHRAE Journal - March 2012 - 41
ASHRAE Journal - March 2012 - 42
ASHRAE Journal - March 2012 - 43
ASHRAE Journal - March 2012 - 44
ASHRAE Journal - March 2012 - 45
ASHRAE Journal - March 2012 - Total Energy Wheel Control in a Dedicated OA System
ASHRAE Journal - March 2012 - 47
ASHRAE Journal - March 2012 - 48
ASHRAE Journal - March 2012 - 49
ASHRAE Journal - March 2012 - 50
ASHRAE Journal - March 2012 - 51
ASHRAE Journal - March 2012 - 52
ASHRAE Journal - March 2012 - 53
ASHRAE Journal - March 2012 - 54
ASHRAE Journal - March 2012 - 55
ASHRAE Journal - March 2012 - 56
ASHRAE Journal - March 2012 - 57
ASHRAE Journal - March 2012 - 58
ASHRAE Journal - March 2012 - 59
ASHRAE Journal - March 2012 - Optimizing Design & Control of Chilled Water Plants Part 4: Chiller & Cooling Tower Selection
ASHRAE Journal - March 2012 - 61
ASHRAE Journal - March 2012 - 62
ASHRAE Journal - March 2012 - 63
ASHRAE Journal - March 2012 - 64
ASHRAE Journal - March 2012 - 65
ASHRAE Journal - March 2012 - 66
ASHRAE Journal - March 2012 - 67
ASHRAE Journal - March 2012 - 68
ASHRAE Journal - March 2012 - 69
ASHRAE Journal - March 2012 - 70
ASHRAE Journal - March 2012 - 71
ASHRAE Journal - March 2012 - Improving DHW System Performance
ASHRAE Journal - March 2012 - 73
ASHRAE Journal - March 2012 - 74
ASHRAE Journal - March 2012 - 75
ASHRAE Journal - March 2012 - 76
ASHRAE Journal - March 2012 - 77
ASHRAE Journal - March 2012 - 78
ASHRAE Journal - March 2012 - 79
ASHRAE Journal - March 2012 - Building Sciences
ASHRAE Journal - March 2012 - 81
ASHRAE Journal - March 2012 - 82
ASHRAE Journal - March 2012 - 83
ASHRAE Journal - March 2012 - 84
ASHRAE Journal - March 2012 - 85
ASHRAE Journal - March 2012 - 86
ASHRAE Journal - March 2012 - 87
ASHRAE Journal - March 2012 - Emerging Technologies
ASHRAE Journal - March 2012 - 89
ASHRAE Journal - March 2012 - 90
ASHRAE Journal - March 2012 - 91
ASHRAE Journal - March 2012 - 92
ASHRAE Journal - March 2012 - 93
ASHRAE Journal - March 2012 - Refrigeration
ASHRAE Journal - March 2012 - 95
ASHRAE Journal - March 2012 - Special Products
ASHRAE Journal - March 2012 - 97
ASHRAE Journal - March 2012 - IAQ Applications
ASHRAE Journal - March 2012 - 99
ASHRAE Journal - March 2012 - People
ASHRAE Journal - March 2012 - 101
ASHRAE Journal - March 2012 - Products
ASHRAE Journal - March 2012 - 103
ASHRAE Journal - March 2012 - 104
ASHRAE Journal - March 2012 - 105
ASHRAE Journal - March 2012 - 106
ASHRAE Journal - March 2012 - 107
ASHRAE Journal - March 2012 - 108
ASHRAE Journal - March 2012 - 109
ASHRAE Journal - March 2012 - Classified Advertising
ASHRAE Journal - March 2012 - 111
ASHRAE Journal - March 2012 - Advertisers Index
ASHRAE Journal - March 2012 - Cover3
ASHRAE Journal - March 2012 - Cover4
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