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
Using Professional JudgmentVapor 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
• Overcoming Inherent Inefficiencies
• Monitoring , Management and Reporting
VI Mitigation Basics
• Create negative pressure below slab• Designed to function under max load conditions• Achieve mandated vacuum requirements• Routine onsite inspections• Run continually
Delineating the PlumeUsing the mobile lab…
Delineating the Plume
Delineating the Plume
Permeability Mapping
Permeability Mapping
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
…Conditions Change
The problem with current systems…
Inherent Inefficiencies
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Soil ConditionsSeasonal Changes
Onsite InspectionsBuilding Pressures
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
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
• Monitor up to 4 blower systems• Mobile fault notifications• Automated reporting• Ideal for:– Individual residences– Multi-family housing – Small buildings
Vapor Guardian 400
-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
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
Case Study – Industrial Building
11 barrels 4 tons
Conserving Resources
Social Responsibility
24,000 lbs. CO2
139 lbs. SO2
$6,000
Fiscal Responsibility
Care, Custody, and Control
• Long Term Stewardship• Delineating Responsibility• Project Handoff• Continual Monitoring• Liability Ownership• Inspections• State Reports
Remote Monitoring
Automatically generated quarterly
Operations and Maintenance report
from remote monitoring and
management system.
Automated Reports
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
Thank You For Listening
Visit Our Booth For More Info
www.cleanvapor.comwww.vapordynamics.com
The technology described herein may be subject to one or more U.S. Patent Applications.