UVC for HVAC Case Studies: Office & Commercial

1. How Do Utilities Save Energy?

"Estimated saving of $139,000 in annual energy costs in 2 + years.”

“Amounted to 15% savings.”

“Cut back from four 300-ton chillers to two.”
 
American Electric Power

2. Consulting Specifying Engineer - Pro IAQ (Indoor Air Quality) Anti Mould - Discussion.
 
Indoor Air Quality Roundtable

3. UVC Approach Stops Mould & Enhances IAQ (Indoor Air Quality) for Medical Company.

"As an added benefit, Remer has eliminated the annual spring cleaning of the building’s air conditioning coils."
 
“The continuous germicidal action of the lamps keeps contaminants from building up on coil surfaces, so chemical cleaning has become unnecessary."

Medicine Lake Properties

4. Art Preservation through Better IAQ (Indoor Air Quality).

“In addition the perpetually clean coils are more energy efficient. Between the maintenance and energy savings the lights definitely pay for themselves.”
 
Museum of Fine Arts - Boston

5. Duct Work gets UV-Rx curing Mould Growth Problems.

This applied technology "promises to have a sweeping impact on IAQ (Indoor Air Quality) problems in all types of environments."

Public Service Company of Oklahoma

6. Shining Light on UVC Output.
 
General advice on the selection and installation criteria for UVC lights in AHUs.

Shining the light on UVC Output

7. UVC Helps Cut Heating Costs In Jails.

“Reductions in air changes resulted in decreased heating costs.”

"We have saved more than $70,000 in natural gas by reducing our outdoor air requirement.”

“Even after we subtract for servicing and changing UVGI lamps, annual savings still exceed $55,000.”

Tacoma Jail Case Study

8. Mould UVC Effectiveness University of Tulsa.

Mould UVC Effectiveness University of Tulsa.

9. UVC Lights Enhance IAQ (Indoor Air Quality) & Reduce AHU Operating Costs.

“The pressure drop across the coil decreased by over 30%.”

“The airflow increased from 16,000 CFM to 17,400 CFM.”

“30% increase in cooling capacity from 548,502 BTU to 797,094 BTU.”

“The devices ability to increase system performance to almost “as new” levels is expected to prolong the life on mechanical equipment."

“Potential Horse power savings should not be ignored especially for those who utilise VAV drives.”

U.S. Air Conditioning Distributors

10. UVC Offers Non-Mechanical Method For Duct Cleaning.

"UVC lights are an excellent option because they offer an effective non-polluting and permanent way to clean ductwork of microbial contamination”.

UVC for Duct Cleaning

11. Improving IAQ (Indoor Air Quality) in a Mall Environment.

"Here, the UVC energy cleanses the air and decontaminates the drain pan for improved IAQ (Indoor Air Quality). It also removes and prevents the formation of an organic primed bio film that routinely builds up on the coils entire cooling surface - a condition which, along with the drain pan build-up produces odours and causes efficiency, maintenance, and operational headaches."

Woodland Hills Mall

Education

1. UVC emitters enhance the hygiene and reduce illness and absenteeism in California Pre School.

“An estimated 20% drop in student absenteeism.”

“50% drop in teacher absenteeism.”

Crescent Avenue Pre-School

2. UV light Zaps Mould Problem in School.
 
Iolani School

3. UVC Shed Light on School Mould.

 
La Porte Independent School District

4. UV Light puts and end to mould problem in educational establishment.

Stepping Stones Center

5. Western Kentucky University

"In two areas of our building, those who work in those areas are reporting a real difference in the smell and air quality. They report actually feeling better with fewer sinus problems."

Western Kentucky University

Healthcare

1. Canadian Healthcare Engineering Society UVC Finds It's Cool.

"At one large U.S. acute-care health system—the Orlando based Florida Hospital system–facilities management estimates energy savings from UVC lights to be in the six figures (U.S.dollars) annually. They have also eliminated hundreds of coil cleaning procedures per year, for thousands of dollars in additional savings. The associated reduction in downtime is also beneficial since the shutdown of an air handling system in any hospital is problematic because it can compromise patient comfort and IAQ (Indoor Air Quality) control."

Canada Healthcare UVC Article

2. UVC Hospital puts HVAC Maintenance under a new light.

“Within weeks of installing the UVGI the air velocity across the coil more than doubled from 230 fpm to 520 fpm.”

“The wet bulb temperature decreased from 57°F-53°F.”

“We calculated the increase in capacity to 95,245 BTU saving $4,867 on an investment of $2,000.”

“The hospital is conservatively saving 15% in HVAC system energy costs.”  

Florida Hospital

3. UVGI In High Humidity Applications.

"Before the UVGI emitters were installed inside the air handling units, Queen’s had to clean and disinfect air conditioning coils and drain pans annually. The areas are inspected every three months but since UVGI was installed a year ago, no slime has grown and the system is operating at nearly 100% efficiency."

Queens Medical Centre

Residential

1. Esposito Residence

2. Kelleher Residence

3. Shining the light on duct work mould may cure building sickness.

"It certainly demands consideration in any home or building where there are any allergic or asthmatic occupants. It is being used on a preventative basis, too - to help prevent to prevent diseases such as flu and colds"

Oblath Residence

Food Processing

1. Excerpt from Food Quality Magazine - UVC Devices Remove Mould in Cold & Moving Air Environments.

UVC For Food Processing

2. Food Engineering Magazine - May 2007
Interview with Robert Scheir, president and chairman, Steril-Aire

The electromagnetic spectrum offers considerable potential to prepare and preserve food products. The application of UVC, short-wave ultraviolet in the C band range (200 to 280 nanometers) to inactivate mould, bacteria, fungus, viruses and other spoilage organisms illustrates the development challenge.

3. UVC Emitters Help Eliminate Mould and Extend Shelf-Life at Martin Farms.

 
Martins Farms

Animal Welfare

1. UVC Light Enhances Indoor Air Quality for animals & humans.

"The product has been shown to work against viruses, bacteria, mould and mould spores. Because the five-story ASPCA building includes extensive animal housing and the Bergh Memorial Animal Hospital, a full-service small-animal medical facility, any technology that helps prevent the spread of infection is of importance."

"After Eco-Care installed lights in the existing AHUs, Grujic said he quickly noticed a big improvement in system efficiency."

“During the summer of 2005, one of our hottest summers on record, we were actually getting complaints that the building was too cold."

“After looking into the reasons, we found that the temperature at the coil of our 90-ton AHU was as low as 47˚, about a 10˚ drop from our usual readings,” he said. “We had to turn up the set point to compensate."

ASPCA (American Society for the Prevention of Cruelty to Animals)

Scientific Publications

Allergy & Clinical Immunology
1. American Society for Microbiology - Effectiveness for UV Radiation for Reducing Fungal Contamination in Air Handling Units.
 
Article Summary

2. American Society for Microbiology - Effectiveness for UV Radiation for Reducing Fungal Contamination in Air Handling Units.
 
Complete Article

3. The Ability of Fan Powered UVGI Disinfection Unit To Inactivate Selected Airborne Bacteria.

Effectiveness of UVC Radiation

Awards - click link