Tcacs Presentation

Date

Available to Trane Dealers in British Columbia

Trane Catalytic Air Cleaning System (TCACS)

Trane Catalytic Air Cleaner

Indoor Air Quality – Air Cleaning

2

Keep buildings clean

Help HVAC system

performance

Minimize adverse

health effects

Code or process

requirements

Risk Reduction

Benefits of Improved Indoor Air Quality

3

Particles

• Dust

• Allergens

• Smoke

Gases • Chemicals

• VOCs

• Odors

Micro-Biological

Contaminants

• Virus

• Bacteria

• Spores


Indoor Air Quality - What’s Changed?

• 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

4

ASHRAE Position Paper, June, 2009


Public Awareness of Air Cleaning – What’s Changed?

• 3M has been a forerunner with ads depicting their

Filtrete® brand capturing more airborne particles

and organisms than lower rated filters. Filtrete®

dominates the retail high-end filter market.

• The H1N1 influenza pandemic showed how easily

the virus can be transmitted among humans.

Pictures of millions wearing face masks have

solidified the perception that germs are airborne

and filtration can help prevent infection.

“In our study, we revealed, to our knowledge for the

first time, the presence of airborne influenza virus

particles in a health care environment”.

CDC NIOSH, Feb. 2009

5

Airborne Disease: Now a Forethought


• Leverage Genesis Air Inc. Technology (GAP™)

– CARB certified

– UL Listed

– EPA-FIFRA registered

– 3rd party RTI testing

• Blended Technologies

I. High-efficiency particle filtration (MERV 13)

II. Ultraviolet Germicidal Irradiation (UVC)

III. Photo-catalytic oxidation (PCO)

6

Integrated Approach for Broad Range of Contaminants

High Efficiency

Particulate

VOC

Reduction

Introducing: Trane Catalytic Air Cleaning System

Microbiological

Inactivation

Trane Catalytic Air Cleaner 7

Combustion

Products

.01

Plant

Animal

Mineral

.05 .1 .5 10 50 100 1000 1 5

Microns

.01 .05 .1 .5 10 50 100 1000 1 5

Higher Risk Respirable Particles Visible to Human Eye

Spores

Bacteria

Pollen

Viruses

Human Skin Cells

Tobacco Smoke

Oil Smoke

Paint Pigments

Auto Emissions

Droplet Nuclei

Mold

Carbon Black

Coal Dust

Cement Dust

Asbestos

Fly Ash

Source: ASHRAE

Filter rating conditions

including HEPA

Biological Air Cleaning – Typical Particle Sizes

Trane Catalytic Air Cleaner 8

Biological Air Cleaning – Settling Rates

Particle Settling Velocities

Particle Size

µm

Settling time from a

height of 4 ft.

100.0 4.0 seconds

10.0 6.8 minutes

5.0 19.2 minutes

1.0 9.4 hours

0.5 34.3 hours

0.3 17.8 days

0.1 42.5 days

• Settling rates in still air

• Turbulence from fans, people

moving will increase settling

times

• <1.0 micron particles stay

suspended indefinitely

Source: NAFA

Settling Rates is Key!

Trane Catalytic Air Cleaner Graphic courtesy of Steven Welty, Green Clean Air ©2009

MERV 15 HEPA

MERV 13

46% captured

99.97% captured 71% captured

15,000 Flu Virions

15,000 Flu Virions

15,000 Flu Virions

MERV 8

11% captured

15,000 Flu Virions 13,350 Flu Virions

4,350 Flu Virions

8,100 Flu Virions

4 Flu Virions

Source: Modeling Immune Building Systems for Bioterrorism Defense; Kowalski, Bahnfleth, Musser,

Journal of Architectural Engineering, June 2003, v9(2), pp222-227.

9

I. TCACS - High Efficiency Particle Filtration Effect on Influenza A Virus


Infectious Particle Dispersion

Filters

bacteria

mold

droplet nuclei

viruses

Cooling coil

Graphic courtesy of Steven Welty, Green Clean Air

Large

droplets

Recirculated viruses,

mold and bacteria.

Minimal VOC

reduction by typical

filtration

Airborne Transmission


• C-band ultraviolet; 254 nm

• Effectiveness is dose-related

(intensity x time)

• “Killing” dosage varies widely

by species of microbe

• Designed for specific duty

o Surfaces: low intensity, effective

o On-the-fly “kill:” difficult to achieve

Most

susceptible

Least

susceptible

virus

vegetative bacteria

mycobacteria

bacterial spores

fungal spores

11

II. Ultraviolet Germicidal Irradiation (UVGI) Microbiological Inactivation


• What type of gases are floating around? – Irritants ( Aldehydes, Ozone, CO, Methane)

– Odorous (cleansers, cooking)

– Corrosives (SO2, Chlorine)

• What are common indoor sources? – Paints and solvents

– Combustion sources

– Sewer Gas

– Plastics, furniture and carpets

– Printers and copiers

– Aerosol sprays

– Cleaning products and disinfectants

– Pesticides and bug repellents

– Air fresheners

– Mold (Toxins)

– Adhesives, caulk

– People

– Cooking Odors

12

Vapor Phase (Gaseous) Air Cleaning


Vapor Phase – Solutions

• Source Control

• Ventilation

• Removal/Reduction

Technologies

– Adsorption

– Chemisorption

– Catalytic Conversion

13

Chemisorption

Photo-Catalytic Oxidation

Adsorption


• Catalytic Conversion

– Newest technology in

commercial HVAC market

– Analogous to car catalytic converters

– Conversion process: changes molecular structure of

contaminant to less toxic substances

– Needs an energy source and a catalyst to force chemical

reactions in airstream

– Works on organic compounds by breaking the carbon

chains

14

III. Photo-Catalytic Oxidation (PCO)

Trane Catalytic Air Cleaner Graphic Courtesy of Steven Welty, Green Clean Air © 2010

• UV light creates photons,

a form of light energy

• Photons are “catalyzed” by

the TiO2 forming hydroxyl

radicals

• Radicals last less than 1/10

of a second and react with

carbon-based compounds

• Organic compounds can be

reduced to CO2 and H2O

15

III. Photo-Catalytic Oxidation (PCO)


Significantly

reduced viruses,

mold, bacteria and

VOCs

MERV 13+ Filters

bacteria

mold

droplet nuclei

viruses

UV/PCO

Graphic courtesy of Steven Welty, Green Clean Air

Large droplets

16

Airborne Transmission with TCACS TCACS - Combined Air Cleaning Technologies


Bacterial Testing

Staphylococcus epidermis Decay

0

500

1000

1500

2000

2500

3000

3500

4000

4500

0 5 10 15 20

Time (min's)

Co

lon

y F

orm

ing

Un

its

/C

F

TCACS on

TCACS off

Staphylococcus epidermidis (Se) - Closely related to Staphylococcus aureus,

commonly associated with Methicillin-resistant Staphylococcus aureus (MRSA).

17


Viral Testing

MS2 Decay

0

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

0 5 10 15 20

Time (min's)

Pla

qu

e F

orm

ing

Un

its

TCACS on

TCACS off

MS2 virus - An E. coli bacteriophage commonly used as a human

virus stimulant for human influenza A virus (including H1N1).

18


Trane Catalytic Air Cleaning System (TCACS)

• Increasing evidence that contaminants can be spread via an

airborne path

• Advantages of our solution

– Engineered solution

– Ease and flexibility of installation

Factory installed in new Trane AHUs; RTU Curbs

Retrofit installations in existing buildings

Portable Units/Ducted Solutions

– Low pressure drop of PCO panel (0.05” @ 500 fpm)

– Small installation footprint

– Low maintenance life cycle costs

– Broad based contaminant reduction solution

Microbiological and Gaseous Odor reduction capabilities


TCACS Applications

• Over 400 successful installations

– Hospitals

– K-12 Schools

– Airports

– Casinos

• Validated by 3rd Party Testing

– CARB certified

– RTI testing laboratories


• 36 states now require some

form of reporting for hospital

acquired infection (HAI).

• Medicare is no longer required

to reimburse for medical

expenses due to HAI’s.

• Lawsuits against hospitals

causing infection are up 50%

in the last 10 years.

21

Air Cleaning Needs in Hospitals

Hospitals today face increased financial exposure


Schools today have added concerns for child safety

Air Cleaning Needs in Schools

• The EPA has citied that poor indoor air quality can impact the comfort and health of

students and staff, which, in turn, can affect concentration, attendance, and student

performance.

• In 1999, Indoor air quality (IAQ) was reported to be unsatisfactory in about one in five

public schools in the United States, while ventilation was reported as unsatisfactory in

about one-quarter of public schools

-National Center for Education Statistics of the Department of Education

• Growing concerns with

– Crowded classrooms

– Hygiene issues

– Absentee rate

– Teacher attendance

– Improved protection against outbreaks


Air Cleaning Needs in Airports

• Increasingly, airport management the TSA and FAA are showing

interest in the health impacts from combustion engines,

biological contaminants and other airport related sources of

airborne toxins.

• Sources of hazardous air pollutants and biological contaminants

– Aircraft: Jet Engine Exhaust

– Ground Source Equipment: Diesel Engine exhaust, De-icing

machine exhaust

– Ground Access Vehicles: Diesel engine exhaust

– Stationary sources: clean and sanitizing vapors, food prep odors

– People: perfumes, odors, viruses, bacteria


Trane Catalytic Air Cleaning System TCACS

• Factory engineered and installed

Proper arrangement

Low Pressure Drop (0.03” w.g.)

Material protection (hardening)

Maintenance access

Safety controls

Integrated wiring

UL and EPA labeled

24 Picture courtesy of Genesis Air


TCACS in Retrofit Applications:


Trane Catalytic Air Cleaning System TCACS

• Curb Mounted for Packaged

Equipment

• Selected and supported

by Genesis Air

• Curbs built by: Thybar

KCC

26

Trane Catalytic Air Cleaner Pictures courtesy of Genesis Air

Genesis Air Inc. (GAP™) Air Cleaner Portable & Ducted Configurations

27

Documents

Tcacs Presentation