NovaSpectra Inc.

Mission Statement: NovaSpectra’s goal is to advance the arts and sciences of Ultraviolet Germicidal Energy (UV-C) to protect our critical infrastructure from airborne pathogens and contaminants and promote a sustainable world.

Background

NovaSpectra Inc. has over 20 years experience in the public and private health care compliance space and over 20 years doing research and development as a government contractor for the United States Department of Defense. We serve as a systems integrator and research and development facility in the imaging and sensors space with focus at the Infrared (IR) and Ultraviolet (UV) wavelengths. Our unique experience has positioned us at the forefront of UV(c) disinfection systems for large scale industrial air disinfection including hospitals, health care facilities, hospitality, military bases and other institutional facilities. Our custom designed solutions are engineered to meet or exceed ASHRAE standards, are scalable and upgradeable with system redundancy, are easily serviceable and integrate into existing building automation systems all with the highest level of disinfection, lowest energy consumption and longest service life.

 

Germicidal UV (GUV) Systems for HVAC

Ultraviolet germicidal energy (UV-C) has been shown to inactivate viruses, bacteria, and Fungi. Studies have shown that air-cleaning technologies using UV-C disinfection (also termed ultraviolet germicidal irradiation [UVGI]) produce beneficial health effects.1 Airborne contamination comes from a variety of sources and circulates through the HVAC system. ASHRAE has recognized this and has given guidance on usage of UV-C for disinfection.

Evidence on Health Effects. An extensive body of epidemiological research indicates that death rates, hospital admissions, and asthma exacerbations, as well as other adverse health effects increase with increased concentrations of particles in outdoor air. Because much of a person’s exposure to outdoor air particles occurs indoors and because this exposure can be reduced by filtration and disinfection, it is reasonable to expect associated health benefits from particle filtration and disinfection that is effective in removing particles having outdoor origin.2

Airborne transmission of diseases through HVAC systems is actually much more prevalent than previously thought. Hospital acquired infections are costing healthcare providers large sums and whilst robust cleaning regimes have been adopted, these infections still affect between 10 and 20% of patients and in some cases are fatal. 

UV-C can protect a hospital’s most vulnerable patients.

Coil Inefficiency Due to Biofilm. Due to the hospitable environment inside air handlers and ducts (darkness and humidity) microorganisms grow rapidly on cooling coils and surrounding surfaces. These microorganisms produce sticky substances and biofilm quickly accumulates in air handlers and coils allowing a thick layer of dust to stick to the coils and related structures resulting in poor temperature transfer between the coil and air leading to greater energy consumption.

NovaSpectra Inc. has developed a proprietary system and method for Germicidal UV-C to address the current shortcomings of conventional systems.

 

NovaUVCTM

  • Intelligent control of variables- Intensity, wavelength and sensor tunability. Not just on/off.
  • Improves overall air quality
  • Drastic reduction in all airborne pathogens- bacteria, mold spores, fungi and viruses including Coronavirus COVID-19
  • Can target specific bacteria and viruses as per need
  • Helps to eliminate Sick Building Syndrome
  • Helps to eliminate cross contamination
  • Scientifically designed systems are sized using our proprietary sizing tools based on extensive research
  • Computational flow dynamics (CFD) and UV radiation profile modeling data.
  • Scientifically engineered lamp positioning to provide optimum UV dose delivery and maximum kill rate
  • Increase the life of coils, HEPA and MERV filters 
  • Reduces maintenance costs by avoiding manual cleaning
  • Save energy by variable power levels and eliminating Biofilm buildup
  • Typical payback period of < 36 months

While every installation is different, the location of the UV(c) bulbs/ LEDs, UV(c) bulbs/LEDs choice, placement of sensors, analysis of air flow, use or no use of reflective materials, integration with building automation systems, thermal management are all analysed using NovaSpectra’s proprietary system and methods. NovaUVCTM  takes all these components and optimizes the collaboration of all the components to create a system that meets and verifies dosage while using the least amount of energy necessary. Measuring UV(c) intensity and air flow we are able to see the real time dosage; we modify bulb/LED intensity as needed to minimize electricity draw while monitoring bulb/LED intensity degradation as they age to alert for bulb/LED replacement. Thermal management to achieve bulb lifetime and light output targets.

           Custom UV(c) Bulb Array. Custom bulb arrays fit virtually any application.

 

Custom prefab slide in unit with easy access service sleeve mount and RefleXtm chamber. The reflective technology gives us the ability to reduce energy consumption by about 75% and reduce the number of bulbs by about 80%

 

 

Ray Trace Spectral Aluminum 2 Multidirectional Emission

Ray Trace-Spectral Aluminum 1 Multi Directional Emission

 

 

 Ray Trace Spectral Aluminum 1 Multidirectional Emission

  Ray Trace- Spectral Aluminum 2  Multi Directional Emission

 

 

 Irradiance Plot 97 Spectral Reflectors Target 5 At 6in Dist

 Irradiance Plot- 97% Spectral Reflectors Target 5 At 6in Dist

 

NovaSpectra can do an in depth analysis of your existing assets and custom design a NovaUVCTM solution for your specific needs and environment.

Using a combination of high-output, low-pressure amalgam lamps and reflectors, Novaspecta’s UV disinfection system for air handlers provides In-Duct Air Disinfection to meet ASHRAE standards for HVAC systems. With a matrix bulb setup, flow meter, and UV sensors we are able to monitor the output of UV(c) at 254 nm to make sure irradiance is equal or greater than 1,000 μW/cm2. By monitoring airflow, the system will also vary the intensity of each bulb or even turn parts of the matrix off to minimize electricity usage, extending the life of the bulbs, while maintaining proper irradiance levels. 

 

In addition to a display readout, your entire population of HVAC disinfection can be connected to your building automation system. We also have a standalone portal system for non BAS users.

How Does NovaUVCTM save energy and reduce maintenance costs?

  • Biofilm must be manually removed increasing maintenance and serviceability issues
  • The reduction or elimination of Biofilm results in energy savings due to improved heat transfer
  • Biofilm has a heat transfer resistance four times that of scale
  • Installing a proper UVGI system kills such microorganisms, and hence it does not allow a biofilm to grow. A clean coil decreases the pressure drop across coil resulting in a decrease on the load of the chiller hence energy saving on chiller by 10-15%
  • Increase in the thermal efficiency (sensible loads) of the cooling coil
  • Reduction in microbial counts >15 %

 

           

  Banks of UV-Lamps installed inside HVAC systems.

       Common air handler with a standard reflective surface.

Common air handlers require high UV doses to inactivate microorganisms on-the-fly as they pass through the irradiated zone due to limited exposure time. 

 

How Does NovaUVCTM disinfect Coronavirus COVID-19 ?

By tuning the NovaUVCTM system to the 254-268nm wavelength of the UV(c) spectrum and directing maximum energy at that wavelength we are able to focus the systems ability to inactivate the virus and destroy its ability to replicate.

     

The ultraviolet portion of the electromagnetic spectrum.

Off the shelf UV(c) Solutions

Common air handler with drop in UV(c) module retrofit. We also provide simple retrofit solutions for existing assets including analysis and testing.

Cage Code: 1XS92        DUNS: 041812129

www.novaspectra.com

References

(1) ASHRAE Position Document on Filtration and Air Cleaning 2018   (2) ASHRAE Position Document on Indoor Air Quality (3) Brunekreef and Forsberg 2005; Delfino et al. 2005; Pope and Dockery 2006   (4) IES Committee Report IES CR-2-20-V1

ASHRAE Weighs in on Health Benefits of UV-C      

Print Email