ASHRAE Journal - May 2013 - 50

2013 Technology Award Case Studies
12,000

180
160

160

10,000
138
8,000

120
110

100
80

Therms

EUI (kBtu/ft2·yr)

140

78

60

6,000
Modeled
4,000

64

40

2,000

20
CBECS
2003

Standard
90.1

OR Code
Baseline

Figure 2: EUI chart.

rately by a set of motorized dampers to the exterior. Similar to
the main variable air volume air handler, this air handler has a
blow through coil to take advantage of the groundwater based
cooling. Zone air movement is enhanced by six 12 ft (4 m)
diameter high-volume low-velocity destratification fans that
are controlled by occupant-adjustable variable speed drives.
To help maintain good indoor air quality, the outside air intake
is ducted from the roof level, away from sources of ground
level pollution such as street vehicular traffic.
The locker and shower rooms, located below on the second
level, are ventilated and conditioned by excess air transferred
from the gymnasium. The transfer air passes through MERV13 air filters, through an inline fan, and then to two zoned hot
water coils for tempering. The transferred air from the locker
and shower rooms is 100% exhausted.

Actual
Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Jan.
|
2010
| 2011

Figure 3: Modeled vs. actual natural gas use.
300,000
250,000
200,000
Modeled
150,000
100,000
50,000
0

Actual
Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Jan.
|
2010
| 2011

Figure 4: Modeled vs. actual electricity use.

Natatorium
The natatorium is located on the second level and features
an 82 ft (25 m) seven lane lap pool, and a 12 ft (4 m) diameter
spa. Spaces where pools operate pose challenges for maintaining good occupant comfort, indoor air quality, energy savings,
and maintaining an environment that does not damage the
building. If humidity rises too high, the structure can corrode,
causing losses in envelope and sometimes structural integrity.
The design team incorporated measures to reduce the likelihood of condensation, as well as to provide for good indoor
air quality. Following guidance provided in ASHRAE Handbook—HVAC Applications, the air distribution was designed
such that the envelope is washed with supply air to help prevent condensation. Additionally, a small portion of the supply air is delivered across the pool level. This air movement
across the pool helps to carry harmful air contaminants, such
as chloramines, away from the swimmer’s breathing zone. To
further reduce the amount of chloramine contamination, the
pool water is treated by ozone, and the natatorium is isolated
from the rest of the building by vestibule doors and kept at a
slight negative air pressure.
50

0

Proposed
Actual
Design Building Use

kWh

0

ASHRAE Journal

Natatorium with views of the street below.

A natatorium can be a large energy burden on a building.
To help reduce energy use, the design team incorporated measures such as outside air based dehumidification as opposed
ashrae.org

May 2013



ASHRAE Journal - May 2013

Table of Contents for the Digital Edition of ASHRAE Journal - May 2013

ASHRAE Journal - May 2013
Contents
Commentary
Industry News
Letters
Meetings and Shows
Feature Articles
VAV Reheat Versus Active Chilled Beams & DOAS
A Stable Whole Building Performance Method for Standard 90.1
Technology Award Case Studies:
PSU Design Build Project
Passive Cooling for School
Standing Columns
Building Sciences
InfoCenter
Refrigeration Applications
IAQ Applications
Engineer's Notebook
Products
Data Centers
Emerging Technologies
Classified Advertising
Advertisers Index
ASHRAE Journal - May 2013 - ASHRAE Journal - May 2013
ASHRAE Journal - May 2013 - Cover2
ASHRAE Journal - May 2013 - 1
ASHRAE Journal - May 2013 - 2
ASHRAE Journal - May 2013 - Contents
ASHRAE Journal - May 2013 - Commentary
ASHRAE Journal - May 2013 - 5
ASHRAE Journal - May 2013 - Industry News
ASHRAE Journal - May 2013 - 7
ASHRAE Journal - May 2013 - 8
ASHRAE Journal - May 2013 - 9
ASHRAE Journal - May 2013 - 10
ASHRAE Journal - May 2013 - 11
ASHRAE Journal - May 2013 - 12
ASHRAE Journal - May 2013 - 13
ASHRAE Journal - May 2013 - Letters
ASHRAE Journal - May 2013 - 15
ASHRAE Journal - May 2013 - Meetings and Shows
ASHRAE Journal - May 2013 - 17
ASHRAE Journal - May 2013 - VAV Reheat Versus Active Chilled Beams & DOAS
ASHRAE Journal - May 2013 - 19
ASHRAE Journal - May 2013 - 20
ASHRAE Journal - May 2013 - 21
ASHRAE Journal - May 2013 - 22
ASHRAE Journal - May 2013 - 23
ASHRAE Journal - May 2013 - 24
ASHRAE Journal - May 2013 - 25
ASHRAE Journal - May 2013 - 26
ASHRAE Journal - May 2013 - 27
ASHRAE Journal - May 2013 - 28
ASHRAE Journal - May 2013 - 29
ASHRAE Journal - May 2013 - 30
ASHRAE Journal - May 2013 - 31
ASHRAE Journal - May 2013 - 32
ASHRAE Journal - May 2013 - A Stable Whole Building Performance Method for Standard 90.1
ASHRAE Journal - May 2013 - 34
ASHRAE Journal - May 2013 - 35
ASHRAE Journal - May 2013 - 36
ASHRAE Journal - May 2013 - 37
ASHRAE Journal - May 2013 - 38
ASHRAE Journal - May 2013 - 39
ASHRAE Journal - May 2013 - 40
ASHRAE Journal - May 2013 - 41
ASHRAE Journal - May 2013 - 42
ASHRAE Journal - May 2013 - 43
ASHRAE Journal - May 2013 - 44
ASHRAE Journal - May 2013 - 45
ASHRAE Journal - May 2013 - PSU Design Build Project
ASHRAE Journal - May 2013 - 47
ASHRAE Journal - May 2013 - 48
ASHRAE Journal - May 2013 - 49
ASHRAE Journal - May 2013 - 50
ASHRAE Journal - May 2013 - 51
ASHRAE Journal - May 2013 - 52
ASHRAE Journal - May 2013 - 53
ASHRAE Journal - May 2013 - Passive Cooling for School
ASHRAE Journal - May 2013 - 55
ASHRAE Journal - May 2013 - 56
ASHRAE Journal - May 2013 - 57
ASHRAE Journal - May 2013 - 58
ASHRAE Journal - May 2013 - 59
ASHRAE Journal - May 2013 - 60
ASHRAE Journal - May 2013 - 61
ASHRAE Journal - May 2013 - Building Sciences
ASHRAE Journal - May 2013 - 63
ASHRAE Journal - May 2013 - 64
ASHRAE Journal - May 2013 - 65
ASHRAE Journal - May 2013 - 66
ASHRAE Journal - May 2013 - 67
ASHRAE Journal - May 2013 - 68
ASHRAE Journal - May 2013 - 69
ASHRAE Journal - May 2013 - InfoCenter
ASHRAE Journal - May 2013 - 71
ASHRAE Journal - May 2013 - 72
ASHRAE Journal - May 2013 - 73
ASHRAE Journal - May 2013 - 74
ASHRAE Journal - May 2013 - Refrigeration Applications
ASHRAE Journal - May 2013 - 76
ASHRAE Journal - May 2013 - 77
ASHRAE Journal - May 2013 - IAQ Applications
ASHRAE Journal - May 2013 - 79
ASHRAE Journal - May 2013 - 80
ASHRAE Journal - May 2013 - 81
ASHRAE Journal - May 2013 - 82
ASHRAE Journal - May 2013 - 83
ASHRAE Journal - May 2013 - Engineer's Notebook
ASHRAE Journal - May 2013 - 85
ASHRAE Journal - May 2013 - Products
ASHRAE Journal - May 2013 - 87
ASHRAE Journal - May 2013 - Data Centers
ASHRAE Journal - May 2013 - 89
ASHRAE Journal - May 2013 - 90
ASHRAE Journal - May 2013 - 91
ASHRAE Journal - May 2013 - Emerging Technologies
ASHRAE Journal - May 2013 - 93
ASHRAE Journal - May 2013 - 94
ASHRAE Journal - May 2013 - Classified Advertising
ASHRAE Journal - May 2013 - Advertisers Index
ASHRAE Journal - May 2013 - Cover3
ASHRAE Journal - May 2013 - Cover4
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