ASHRAE Journal - December 2009 - 36

ter]) and the lower cost relative to radiant cooled ceilings favored the passive chilled beam option over radiant cooled ceilings. 1. UFAD alone, as a baseline for comparison; 2. UFAD in conjunction with radiant cooled ceilings; and 3. UFAD in conjunction with passive chilled beams. Ideal HVAC Solution The results of the comparison are summarized in Table 1 The system evaluation compared air quantity delivered to (p. 35). The supply air quantity indicated for UFAD with radithe space, total motor horsepower, quantity of floor diffusers, ant cooled ceilings was determined based on cooling capacfuture flexibility, and first cost for all three options. The three ity if the entire ceiling was composed of radiant panels. The solutions considered were: decision to provide a radiant ceiling throughout was based on providing a uniform ceiling pattern throughout the space. The supply air quantity indicated for UFAD with chilled beams was determined through an optimization exercise using a spreadsheet that calculated the amount of cooling provided by UFAD supply air at various outside air percentages. The difference between that cooling capacity and the People Helping People cooling load would be provided by chilled Build a Safer World™ beam cooling. Ultimately, this process determined that 40% outside air was most appropriate for the application, considering size of air-handling units, fan horsepower, size of ductwork, quantity of swirl diffusers, and quantity of chilled beams. The usable quantity of chilled beams dicNEW FROM ASHRAE AND ICC! 2009 INTERNATIONAL ENERGY CONSERVATION tated that they be installed perpendicular to CODE AND ANSI/ASHRAE/IESNA STANDARD outside walls (as opposed to a more typical This dual publication contains the 2009 along-the-perimeter layout) and above occuIECC® and ASHRAE/IESNA Standard pant workstations. This was deemed accept90.1-2007: Energy Standard for Buildings able because of the facility’s high ceilings. The supplemental cooling systems Except Low-Rise Residential Buildings in a served to reduce supply and return fan single volume, which saves you money and horsepower requirements, as well as the provides you with the information you need number of swirl diffusers required. This to achieve optimal energy conservation. represented a significant cost reduction, #7802S09 | List $131 | ICC Member $111 especially since the decision had been ICC has products and tools to help you apply the 2009 IECC and reap made to use automatic or motorized the rewards of energy efficiency. damper swirl diffusers as a means of maximizing occupant comfort. The team continued their iterative design investigation, both to satisfy aesthetic and functional aspects of the finished installation and to maximize the energy efficiency of the air-handling system. The mechanical design team worked closely with the design architect to coordinate the placement of chilled beams with the layout of columns and light fixtures throughout the space. Figure 1 provides a cross-sectional representation of the com1-800-786-4452 | www.iccsafe.org/2energy bined UFAD and chilled beam system. Leading the Way in Energy Efficiency GEt it today! 09-02517 Maximizing Energy Conservation www.info.hotims.com/25211-23 To maximize energy conservation, the team considered heat wheel energy recov December 2009 ASHRAE Journal

ASHRAE Journal - December 2009

Table of Contents for the Digital Edition of ASHRAE Journal - December 2009

ASHRAE Journal - December 2009
Contents
Commentary
Industry News
Letters
Meetings and Shows
ASHRAE Building EQ Program
Feature Articles
A Closer Look at Chiller Ratings
Cooling With Less Air: Using Underfloor Air Distribution and Chilled Beams
Cooling Concrete: Containerized Water Chilling Plant
Geothermal for Community Center
Anniversary Feature: Air-Recovery System Versus Conventional Air Conditioning
Technical Topics
New Product Preview
Products
Emerging Technologies
Washington Report
People
Special Products
2009 Feature Articles Indices
Classified Advertising
Advertisers Index
ASHRAE Journal - December 2009 - ASHRAE Journal - December 2009
ASHRAE Journal - December 2009 - Cover2
ASHRAE Journal - December 2009 - 1
ASHRAE Journal - December 2009 - 2
ASHRAE Journal - December 2009 - Contents
ASHRAE Journal - December 2009 - 4
ASHRAE Journal - December 2009 - Commentary
ASHRAE Journal - December 2009 - Industry News
ASHRAE Journal - December 2009 - 7
ASHRAE Journal - December 2009 - 8
ASHRAE Journal - December 2009 - 9
ASHRAE Journal - December 2009 - 10
ASHRAE Journal - December 2009 - Letters
ASHRAE Journal - December 2009 - 12
ASHRAE Journal - December 2009 - 13
ASHRAE Journal - December 2009 - 14
ASHRAE Journal - December 2009 - 15
ASHRAE Journal - December 2009 - Meetings and Shows
ASHRAE Journal - December 2009 - 17
ASHRAE Journal - December 2009 - Feature Articles
ASHRAE Journal - December 2009 - 19
ASHRAE Journal - December 2009 - 20
ASHRAE Journal - December 2009 - 21
ASHRAE Journal - December 2009 - A Closer Look at Chiller Ratings
ASHRAE Journal - December 2009 - 23
ASHRAE Journal - December 2009 - 24
ASHRAE Journal - December 2009 - 25
ASHRAE Journal - December 2009 - 26
ASHRAE Journal - December 2009 - 27
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ASHRAE Journal - December 2009 - 29
ASHRAE Journal - December 2009 - 30
ASHRAE Journal - December 2009 - 31
ASHRAE Journal - December 2009 - 32
ASHRAE Journal - December 2009 - 33
ASHRAE Journal - December 2009 - Cooling With Less Air: Using Underfloor Air Distribution and Chilled Beams
ASHRAE Journal - December 2009 - 35
ASHRAE Journal - December 2009 - 36
ASHRAE Journal - December 2009 - 37
ASHRAE Journal - December 2009 - 38
ASHRAE Journal - December 2009 - 39
ASHRAE Journal - December 2009 - 40
ASHRAE Journal - December 2009 - 41
ASHRAE Journal - December 2009 - Cooling Concrete: Containerized Water Chilling Plant
ASHRAE Journal - December 2009 - 43
ASHRAE Journal - December 2009 - 44
ASHRAE Journal - December 2009 - 45
ASHRAE Journal - December 2009 - 46
ASHRAE Journal - December 2009 - 47
ASHRAE Journal - December 2009 - Geothermal for Community Center
ASHRAE Journal - December 2009 - 49
ASHRAE Journal - December 2009 - 50
ASHRAE Journal - December 2009 - 51
ASHRAE Journal - December 2009 - Anniversary Feature: Air-Recovery System Versus Conventional Air Conditioning
ASHRAE Journal - December 2009 - 53
ASHRAE Journal - December 2009 - 54
ASHRAE Journal - December 2009 - 55
ASHRAE Journal - December 2009 - 56
ASHRAE Journal - December 2009 - 57
ASHRAE Journal - December 2009 - 58
ASHRAE Journal - December 2009 - 59
ASHRAE Journal - December 2009 - 60
ASHRAE Journal - December 2009 - 61
ASHRAE Journal - December 2009 - Technical Topics
ASHRAE Journal - December 2009 - 63
ASHRAE Journal - December 2009 - 64
ASHRAE Journal - December 2009 - New Product Preview
ASHRAE Journal - December 2009 - 66
ASHRAE Journal - December 2009 - 67
ASHRAE Journal - December 2009 - 68
ASHRAE Journal - December 2009 - 69
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ASHRAE Journal - December 2009 - 112
ASHRAE Journal - December 2009 - 113
ASHRAE Journal - December 2009 - Products
ASHRAE Journal - December 2009 - 115
ASHRAE Journal - December 2009 - 116
ASHRAE Journal - December 2009 - Emerging Technologies
ASHRAE Journal - December 2009 - Washington Report
ASHRAE Journal - December 2009 - 119
ASHRAE Journal - December 2009 - People
ASHRAE Journal - December 2009 - Special Products
ASHRAE Journal - December 2009 - 2009 Feature Articles Indices
ASHRAE Journal - December 2009 - 123
ASHRAE Journal - December 2009 - 124
ASHRAE Journal - December 2009 - 125
ASHRAE Journal - December 2009 - Classified Advertising
ASHRAE Journal - December 2009 - 127
ASHRAE Journal - December 2009 - Advertisers Index
ASHRAE Journal - December 2009 - Cover3
ASHRAE Journal - December 2009 - Cover4
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