using professional judgment vapor intrusion mitigation design
DESCRIPTION
Using Professional Judgment Vapor Intrusion Mitigation Design. Presented by: Thomas Hatton Clean Vapor, LLC President. What We Will Be Discussing. Vapor Intrusion Basics Delineating the Plume Mapping Permeability Efficient Design Inherent Inefficiencies - PowerPoint PPT PresentationTRANSCRIPT
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Using Professional JudgmentVapor Intrusion Mitigation
Design
Presented by: Thomas Hatton
Clean Vapor, LLC President
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What We Will Be Discussing• Vapor Intrusion Basics
• Delineating the Plume
• Mapping Permeability
• Efficient Design
• Inherent Inefficiencies
• Overcoming Inherent Inefficiencies
• Monitoring , Management and Reporting
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VI Mitigation Basics
• Create negative pressure below slab• Designed to function under max load conditions• Achieve mandated vacuum requirements• Routine onsite inspections• Run continually
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Delineating the PlumeUsing the mobile lab…
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Delineating the Plume
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Delineating the Plume
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Permeability Mapping
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Permeability Mapping
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0 50 100 150 200 250 300 350 400 450 5000
2
4
6
8
10
12
14
Regenerative
GBR HO 40 (Brushless Radial)
Cincinnati HP-8D19 (Radial)
GBR SOE 16 (Brushless Radial)
AMG Force (Centrifugal)
GBR 89-HA (Brushless Radial)
airflow (cfm)
Vac
uu
m (
''w.c
.)Selecting an Efficient Blower
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…Conditions Change
The problem with current systems…
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Inherent Inefficiencies
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Soil ConditionsSeasonal Changes
Onsite InspectionsBuilding Pressures
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0 10 20 30 40 50 60 70 80 90 1000
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Power Consumption vs. Outdoor TemperatureTo maintain 0.0048'' wc sub slab vac.
Temperature (F)
Blow
er C
urre
nt (A
mps
)
Inherent Inefficiencies
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Overcoming Inefficiencies
• Apply dynamic controls to dynamic conditions• Perform based on predefined parameters– Sub slab vacuum– Air exchange ratios
• Remotely:– Monitor system performance– Make system adjustments
• Immediate alert of system faults
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• Monitor up to 4 blower systems• Mobile fault notifications• Automated reporting• Ideal for:– Individual residences– Multi-family housing – Small buildings
Vapor Guardian 400
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-0.004-0.003
-0.005
Vapor Guardian 5500
• Dynamically control 10 blower systems• Control of sub slab vacuum• Assign functional priority– Sub Slab Pressure– Static Pressure– Airflow
• Monitor up to 55 inputs• Mobile fault notifications• Automated reporting
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Excess Vacuum, Excessive Cost
0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.0450
5
10
15
20
25
30
35
0
100
200
300
400
500
600
700
800
900
Total System Static Vac.
Power ConsumptionSub Slab Control Reference Point Vac. ('' w.c.)
Syst
em S
tatic
Vac
(''w
.c.)
Pow
er C
onsu
mpti
on (W
atts)
.004 .032
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Case Study – Industrial Building
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11 barrels 4 tons
Conserving Resources
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Social Responsibility
24,000 lbs. CO2
139 lbs. SO2
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$6,000
Fiscal Responsibility
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Care, Custody, and Control
• Long Term Stewardship• Delineating Responsibility• Project Handoff• Continual Monitoring• Liability Ownership• Inspections• State Reports
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Remote Monitoring
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Automatically generated quarterly
Operations and Maintenance report
from remote monitoring and
management system.
Automated Reports
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Conclusions
• Apply professional judgment in design• Current systems are inefficient• Dynamic conditions require dynamic
controls• Dynamic controls and remote monitoring
save:– Resources– Environment– Money– Liability
• Peace of mind• Healthier living
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Thank You For Listening
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www.cleanvapor.comwww.vapordynamics.com
The technology described herein may be subject to one or more U.S. Patent Applications.