Aeris Technologies Case Study - Presented by Northeast Coil
BUILDINGS ACROSS THE GLOBE ACHIEVE MAJOR INCREASES IN ENERGY EFFICIENCY
Introduction:
During 2003 and 2004, the facilities management teams of a broad range of buildings sought to improve indoor
air quality and optimize heating, ventilation and air conditioning (HVAC) energy usage on their premises by trialing the latest
AerisGuard™ technologies. These buildings were comprised of major international airports, hotels, hospitals, shopping malls and
commercial office premises. The results highly impressed the various facilities teams, with the AerisGuard™ system consistently
delivering a broad spectrum of tangible benefits, most notably significant and measurable reductions in energy losses as well as enhanced
Indoor Air Quality.
Microbial contamination at the heart of HVAC inefficiencies
Microbial contamination of HVAC infrastructure is a major issue
for building management, having the potential to adversely impact HVAC system efficiency and indoor air quality.
Methodology
Aeris Technologies carried out data acquisition during recent trials of the AerisGuard™ system conducted
at numerous sites to demonstrate the effects of system fouling to microbial contamination. The trials involved application of the
AerisGuard™ Bioactive Enzyme Coil Cleaner followed by the residual AerisGuard™ Bioactive Coil Treatment.
The AerisGuard™ technologies incorporated in these products provide:
- The most effective source removal of microbial contamination from the heat exchange surfaces of HVAC systems
- Long term prevention against recolonization of microbial regrowth.
Results: System Efficiency Restored
A range of results in system efficiency remediation was produced that varied from
improvements that could normally be expected to those which were outstanding. Figure 1 shows the pre and post measurements for
air velocity (air flow) and Figure 2 shows the improved reduction of heat exchanger pressure measured in a variety of locations and
applications. The date indicated where significant remediation of biological fouling on the AHU's heat exchanger surfaces was achieved,
increasing and maintaining the heat exchanged through the heat transfer medium within the coil tubes.
The results demonstrated that AerisGuard™ technologies had a dramatic impact in optimizing HVAC system efficiencies. HVAC systems have been reported to account for at least 50% of the energy consumption of modern commercial buildings around the world. Consequently, AerisGuard™ delivered on even the smallest remediation successes, reducing energy losses and maintaining extended operating efficiencies.
The improved indoor air quality, the protection of occupants from the health risks associated with HVAC contamination as well as the reduced risk of associated litigation are all additional benefits to be gained.
The AerisGuard™ Advantage
The facility management on all trial sites were consistently impressed by the resulting
outcomes. In particular, Aeris Technologies had demonstrated that:
- Biological contaminants present over extended periods in HVAC systems had reduced operational efficiency of the systems
- The inefficient HVAC systems were compromising energy efficiencies
- AerisGuard™ technologies were highly effective in overcoming HVAC contamination concerns relating to energy and IAQ issues
Through these trials, the demonstrated improvements in HVAC system performance across various geographic regions as well as in a wide range of applications had enabled Aeris Technologies to confirm, time and time again, how AerisGuard™ technologies delivers major advantages to the entire HVAC infrastructure.