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Photo Catalytic Oxidation Passive Oxidative Technology. ASHRAE Position Paper, June, 2009. Acknowledges that HVAC systems play a role in the dissemination of diseases in buildings Key points: Infectious diseases can be transmitted via an airborne path

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slide2

ASHRAE Position Paper, June, 2009

Acknowledges that HVAC systems play a role in the dissemination of diseases in buildings

Key points:

Infectious diseases can be transmitted via an airborne path

Designers have a responsibility to minimize that potential

  • Dilution ventilation
  • Building pressure control
  • Filtration
  • Oxidative technologies,
    • UVGI, PCO

2

slide4

What is the Product?

  • How does the panel work?
  • Testing
  • Product Features
  • Design Considerations
  • Why they buy
  • Applications
what is the product
What is the product?

Photo Catalytic Oxidation Panel (produces oxidizing agent)

First Glance:

Filter with a light in it?

not a filter is a pco panel
Not a Filter / Is a PCO Panel
  • Think it is a filter; we have plenty
  • It is a panel and we have nothing like this
  • Filter = Commodity
  • Panel = Technology
  • Filter = Everyone sells
  • Panel = Let us consider, More information needed
slide7

Howdoes the panelwork?

  • Have you ever used hydrogen peroxide on a cut?
  • Did it bubble and boil up?
  • What was it doing? Destroying infection causing virus, bacteria and spores.
  • Our panels create OH. We are trying to replicate the natural process the troposphere uses to clean the air we breathe.
  • “Detergent of the atmosphere”
  • Katja Riedel and Keith Lasseyexplain how OH, the hydroxyl radical, works to cleanse
  • the atmosphere of harmful trace gases.
  • “Introducing OH, the hydroxyl radical
  • Although it makes up about a fifth of our atmosphere, oxygen (O2) is not the main oxidant. Other molecules that are produced naturally in the atmosphere, including ozone (O3), the nitrate radical (NO3), and the hydroxyl radical (OH), are much more reactive, even if their atmospheric concentrations are low. Radicals are highly reactive because they have unpaired electrons which tend to transfer to other molecules.
  • The OH radical is the most important oxidant in the troposphere, the lowest part of the atmosphere (below about 10 km). Nobel Prize winner Paul Crutzen coined the phrase “detergent of the atmosphere” to describe this important cleansing role of OH. Most of the trace gases found in the troposphere are oxidised by OH into water-soluble products that are washed out by rain and snow. Specifically, OH is responsible for oxidising carbon monoxide (CO) and other carbon-based molecules, such as methane (CH4).”
  • Water & Atmosphere 16(1) 2008
  • http://www.niwa.co.nz/sites/default/files/import/attachments/detergent.pdf
  • Caution: Two Types – Active (No people)
  • Passive (Safe for Occupied Spaces)
slide8

Redox reaction: A reaction in which electrons are transferred from a donor (the reducing agent) to an acceptor molecule (the oxidizing agent)

Photocatalysis Process

8

slide9
Sample results from 3rd party testing. (With no pre-filter)

PCO shows a single pass reductionin microbial contaminants.

Testing / Does it Work?

Extensive 3rd Party and Field Testing

residential unit single panel
Residential Unit Single Panel

Product Features:

Scalable / Easy Retrofit

San Francisco Airport

Array of Panels

Side or Front Load

slide12

AHU’s:

Location – In Air Stream

Preferred down stream of coil

Advantages - Low pressure drop (.05@500fpm)

Easy to Service (12,000hr lamp)

Requires little space (6” panel)

Low energy (Cost of ODA)

Sustainable (15 year panel)

One Device – Three Solutions

Cleans Coil

Reduces VOCs

Destroys Bio aerosols

slide13

Design Considerations:

  • Design Goal (Global / At the Source)
  • Destroys in the airstream with-in

the panel (Residence time)

  • Panels installed across airstream

in a rack (Location)

  • Collection & Type of Contaminates

(Source & Concentration)

slide14

Why they buy:

  • Hospitals:
  • Odors……. Heliports & Generators
  • Surface Recharge
  • Integrity of Design
  • The O.R. no one will use
  • State of the Art

Airports:

Odors

Airborne pandemic

Schools:

Average Daily Attendance

Resistant Strains (T.B.)

E.P.A. “Tools for Schools”

Lost teaching days

Complaints

Animal Care:

Kennel Cough

Odors

Airborne Viral

Casinos:

Smoke

Money Rooms

Employee health (Liability Issues)

applications
Applications
  • Factory Mounted
  • Retrofit
  • RTU’s
  • Induct
  • Standalone
  • Portable
slide16

Factory mounted AHU (Trane PCC / Custom)

Trane

Performance Climate Changer

slide19

Panel

In

Curb

Supply

slide21

Standalone:

Inlet

Ducted

Attached to

Filter grilles

Supply

Out

hospital st luke s vintage houston tx
Hospital St. Luke’s Vintage Houston TX

1. Source Location

a. Close proximity to freeway

b. Non attainment area

c. Automotive and Diesel exhaust migrating into fresh air vents.

d. Ongoing construction

2. Type of Problem

a. Ultra fine particles from outdoor pollution

ODA - TVOC load.

b. Biologic reduction ( Risk reduction HAI )

3. Personnel Location & Challenges

a. Limited access behind air handles

b. Factory Trane Install for new hospital

c. Four story facility 250,000 sq ft.

4. Equipment sizing and location

a. 8-Trane Air handlers

b. 8-2008 Standard PCP Systems

c. 48-PCP Standard Catalyst Panels

d. 112 Assorted UVGI lamps

e. Spec Merv 13 pre filters in non critical areas and HEPA Filtration in Critical Areas

23

hospital john muir medical center concord ca
Hospital John Muir Medical Center Concord CA

1. Source Location

a. Close proximity to freeway

b. Non attainment area

c. Close proximity to Helicopter Landing Pad

d. Ongoing construction

2. Type of Problem

a. Ultra fine particles from outdoor pollution and high outdoor TVOC load.

b. Stage 1 for helicopter odors

c. Stage 2 Critical areas bio aerosol reduction

3. Personnel Location & Challenges

a. Limited access behind air handles

b. Dedicated fresh air unit for

c. Five story 168 bed facility

d. Field Retro

4. Equipment sizing and location

a. One custom dedicated fresh air unit

b. Stage 2, three AHUS

24

hospital terrebonne general medical houma la
Hospital Terrebonne General Medical Houma LA

1. Source Location

a. High environmental fungal levels

b. Physical Training Weight Room

c. Limited Ventilation

d. High people traffic

2. Type of Problem

a. Odors from physical training

b. Biologic reduction (Risk Reduction HAI )

3. Personnel Location & Challenges

a. Rooftop mechanical room isolated

b. Field retrofit

c. Four story facility 400,000 sq ft.

4. Equipment sizing and location

a. 1-Trane Air handlers

b. 1-2008 Standard PCP Systems

c. 2-PCP Standard Catalyst Panels

d. 8 Assorted UVGI lamps

e. Spec MERV 13 pre filters in non critical areas

25

airports san francisco airport t 2 terminal
Airports San Francisco Airport T 2 Terminal

1. Source Location

a. Jet Exhaust and Jet Fuel from runways &

gates

b. Large volume of people

c. High levels of outdoor air required by code

2. Type of Problem

a. High levels of outdoor CO & TVOCs

3. Personnel Location & Challenges

a. Humid environment / cost of

maintenance using capture systems

b. Ineffective (off gassing)

c. Cost prohibitive 18 month replacement

cycle

4. Equipment sizing and location

a. 9 Custom AHUs totaling 539,000 cfm

b. 474 Catalyst Panels 576 UVGI Lamps

c. Equipment installed in the mixing box before

the coils because of existing humidity levels

and AHU manufacture specs.

26

Pictures Courtesy of Genesis Air, Inc.

labs medical examiners office labs
Labs Medical Examiners Office & Labs

1. Source Location

a. Decomposition bodies in various locations

b. The issue - cadavers are moved

through out building

2. Type of Problem

a. Odors & bio-hazards

b. The exhaust system was contaminating an

area of several blocks around the facility.

3. Personnel Location & Challenges

a. Units had to be near the source

b. 12 inch wide returns

4. Equipment sizing and location

a. 2 custom 2006 DTs and 4 portable 2006 GS

b. The GS units are moved to populates areas.

c. The DT units are in the returns near the

source of the contamination.

27

Pictures Courtesy of Genesis Air, Inc.

casino bingo mohawk bingo palace and casino
Casino & Bingo Mohawk Bingo Palace and Casino

1. Source Location

a. Environmental Tobacco Smoke

2. Type of Problem

a. 30 foot open dome building

b. 1600 bingo seats

c. HVAC returns are in central location and out

of smoke layer.

d. Ash tray every 4 feet with 3 to 5 burning

3. Personnel Location & Challenges

a. Placement of inlets in smoke layer

b. 12 inch wide returns

c. Incorporated with EMS system

4. Equipment sizing and location

a. 18 2008 GS Units 2 2008 B3s & 6 2008 DTs

b. GS units mounted 13 foot level in the

smoke layer.

c. odor control / AHU return grill mounted

28

Pictures Courtesy of Genesis Air, Inc.

schools bellevue elementary
Schools Bellevue Elementary

1. Source Location

a. New Construction Late 2009

b. Outdoor Mold and Pollen

c. Long Winters

2. Type of Problem

a. Under ventilation in winter months

b. 80% carpet facility

c. Permanent animals in some classrooms

3. Personnel Location & Challenges

a. Long Winters less ventilation

b. Crowded Classrooms

c. Chemicals brought from home by staff to spray

or burn in classrooms

4. Equipment sizing and location

a. 5 Trane M Series Air Handlers

b. Genesis Air units field installed in AHUs during

construction

c. odor control & biologic control

d. Case study available

29

Pictures Courtesy of Genesis Air, Inc.

slide30

Prisons

Ramsey County Prison St Paul, MN

30

Pictures Courtesy of Genesis Air, Inc.

slide31

Helping Hands for Humanity Animal Shelter Topeka, KA

Pictures Courtesy of Genesis Air, Inc.

31

slide32

Federal

Laughlin AFB

Fuel Maintenance Hanger &

PT Building

FLETC

PT Building

& Command Building

Fort Sam Houston

Corp of Engineers Regional Offices

&

Dorm 1001

Goodfellow AFB

School Age Facility

&

Pipeline Dormitory

32

Pictures Courtesy of Genesis Air, Inc.