ASHRAE Journal - April 2014 - 70
2014 ASHRAE TEcHnology AwARd cASE STudiES
to maximize ventilation effectiveness (Ev = 0.8). Minimum
OSA intake volume for these systems is controlled by the
BAS by monitoring both mixed air temperature and system airflow rates (using duct-mounted airflow stations).
Ventilation rates for laboratory ventilation systems
(100% outdoor air systems), serving the forensic laboratory suites, are controlled using an electronic indoor
environmental quality (IEQ) control system connected
directly to the BAS. The IEQ system obtains continuous
laboratory air samples through small diameter tubing
using a vacuum pump; transports the sample to an analyzer where it is analyzed for volatile organic compounds
(VOCs) and particulate concentration.
The IEQ system determines the required ach based on
measured airborne contaminant concentrations and
adjusts zone ventilation rates through the BAS from
less than 4 ach to a maximum of 12 ach. Each laboratory suite is sequentially sampled several times per
hour on an automatic rotating basis through a "router"
within the IEQ system. Many laboratory suites often run
safely at their minimum ventilation rates (less than 4
ach) providing huge operational energy savings. Users
have observed that burning small strips of magnesium
(to dull bullet casings) or spray painting small objects
quickly causes the IEQ system to maximize the ventilation rate, demonstrating that it works properly.
Laboratory Source Capture. Each laboratory suite
includes a number of chemical fume hoods, point-source
snorkel exhausts and specialized containment cabinets
(i.e., vaporized super glue cabinet) to effectively contain
and remove airborne contaminants at their source.
Each suite uses a BAS room controller that automatically
controls individual exhaust airflow rate from each source
capture device, as well as, general laboratory exhaust rates.
Room controllers maintain minimum acceptable suite
ventilation rate, as determined by the IEQ system while
maintaining zone differential pressure relationships.
Indoor Shooting Range. The indoor shooting range
uses a dedicated, stand-alone, 100% outdoor air ventilation system. The system safeguards the shooter's breathing zone in both standing and sitting positions while
maintaining downrange target visibility. The American
www.info.hotims.com/49803-19
70
ASHRAE JouRnAl
ashrae.org
Apri l 2014
ASHRAE Journal - April 2014
Table of Contents for the Digital Edition of ASHRAE Journal - April 2014
ASHRAE Journal - April 2014
Contents
Commentary
Industry News
Letters
Meetings and Shows
Feature Articles
Lessons Learned from ASHRAE HQ Renovation
Current Trends for Health-Care Ventilation
Technical vs. Process Commissioning: Pre-Functional Testing
Building Sciences
Engineer's Notebook
Technology Award Case Study: Crime Lab Deconstruction
Refrigeration Applications
Technology Award Case Study: Designing for Sustainability
Data Centers
HVAC Applications
Energy Modeling
IAQ Applications
People
Special Products
Classified Advertising
Advertisers Index
ASHRAE Journal - April 2014 - ASHRAE Journal - April 2014
ASHRAE Journal - April 2014 - Cover2
ASHRAE Journal - April 2014 - 1
ASHRAE Journal - April 2014 - 2
ASHRAE Journal - April 2014 - Contents
ASHRAE Journal - April 2014 - Commentary
ASHRAE Journal - April 2014 - 5
ASHRAE Journal - April 2014 - Industry News
ASHRAE Journal - April 2014 - 7
ASHRAE Journal - April 2014 - Letters
ASHRAE Journal - April 2014 - 9
ASHRAE Journal - April 2014 - 10
ASHRAE Journal - April 2014 - 11
ASHRAE Journal - April 2014 - Meetings and Shows
ASHRAE Journal - April 2014 - 13
ASHRAE Journal - April 2014 - Lessons Learned from ASHRAE HQ Renovation
ASHRAE Journal - April 2014 - 15
ASHRAE Journal - April 2014 - 16
ASHRAE Journal - April 2014 - 17
ASHRAE Journal - April 2014 - 18
ASHRAE Journal - April 2014 - 19
ASHRAE Journal - April 2014 - 20
ASHRAE Journal - April 2014 - 21
ASHRAE Journal - April 2014 - 22
ASHRAE Journal - April 2014 - 23
ASHRAE Journal - April 2014 - 24
ASHRAE Journal - April 2014 - 25
ASHRAE Journal - April 2014 - 26
ASHRAE Journal - April 2014 - 27
ASHRAE Journal - April 2014 - 28
ASHRAE Journal - April 2014 - 29
ASHRAE Journal - April 2014 - 30
ASHRAE Journal - April 2014 - 31
ASHRAE Journal - April 2014 - Current Trends for Health-Care Ventilation
ASHRAE Journal - April 2014 - 33
ASHRAE Journal - April 2014 - 34
ASHRAE Journal - April 2014 - 35
ASHRAE Journal - April 2014 - 36
ASHRAE Journal - April 2014 - 37
ASHRAE Journal - April 2014 - 38
ASHRAE Journal - April 2014 - 39
ASHRAE Journal - April 2014 - 40
ASHRAE Journal - April 2014 - 41
ASHRAE Journal - April 2014 - 42
ASHRAE Journal - April 2014 - 43
ASHRAE Journal - April 2014 - Technical vs. Process Commissioning: Pre-Functional Testing
ASHRAE Journal - April 2014 - 45
ASHRAE Journal - April 2014 - 46
ASHRAE Journal - April 2014 - 47
ASHRAE Journal - April 2014 - 48
ASHRAE Journal - April 2014 - 49
ASHRAE Journal - April 2014 - 50
ASHRAE Journal - April 2014 - 51
ASHRAE Journal - April 2014 - Building Sciences
ASHRAE Journal - April 2014 - 53
ASHRAE Journal - April 2014 - 54
ASHRAE Journal - April 2014 - 55
ASHRAE Journal - April 2014 - 56
ASHRAE Journal - April 2014 - 57
ASHRAE Journal - April 2014 - Engineer's Notebook
ASHRAE Journal - April 2014 - 59
ASHRAE Journal - April 2014 - 60
ASHRAE Journal - April 2014 - 61
ASHRAE Journal - April 2014 - 62
ASHRAE Journal - April 2014 - 63
ASHRAE Journal - April 2014 - 64
ASHRAE Journal - April 2014 - 65
ASHRAE Journal - April 2014 - Technology Award Case Study: Crime Lab Deconstruction
ASHRAE Journal - April 2014 - 67
ASHRAE Journal - April 2014 - 68
ASHRAE Journal - April 2014 - 69
ASHRAE Journal - April 2014 - 70
ASHRAE Journal - April 2014 - 71
ASHRAE Journal - April 2014 - 72
ASHRAE Journal - April 2014 - 73
ASHRAE Journal - April 2014 - Refrigeration Applications
ASHRAE Journal - April 2014 - 75
ASHRAE Journal - April 2014 - Technology Award Case Study: Designing for Sustainability
ASHRAE Journal - April 2014 - 77
ASHRAE Journal - April 2014 - 78
ASHRAE Journal - April 2014 - 79
ASHRAE Journal - April 2014 - 80
ASHRAE Journal - April 2014 - 81
ASHRAE Journal - April 2014 - 82
ASHRAE Journal - April 2014 - 83
ASHRAE Journal - April 2014 - Data Centers
ASHRAE Journal - April 2014 - 85
ASHRAE Journal - April 2014 - 86
ASHRAE Journal - April 2014 - 87
ASHRAE Journal - April 2014 - 88
ASHRAE Journal - April 2014 - 89
ASHRAE Journal - April 2014 - HVAC Applications
ASHRAE Journal - April 2014 - 91
ASHRAE Journal - April 2014 - 92
ASHRAE Journal - April 2014 - Energy Modeling
ASHRAE Journal - April 2014 - IAQ Applications
ASHRAE Journal - April 2014 - 95
ASHRAE Journal - April 2014 - 96
ASHRAE Journal - April 2014 - 97
ASHRAE Journal - April 2014 - People
ASHRAE Journal - April 2014 - 99
ASHRAE Journal - April 2014 - 100
ASHRAE Journal - April 2014 - Special Products
ASHRAE Journal - April 2014 - 102
ASHRAE Journal - April 2014 - Classified Advertising
ASHRAE Journal - April 2014 - Advertisers Index
ASHRAE Journal - April 2014 - Cover3
ASHRAE Journal - April 2014 - Cover4
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