HVAC Systems Continue Efficiency Evolution
At the 2018 ASHRAE show in Chicago, it was observed that boosting HVAC energy-efficiency is a key focus. Many of the new systems at this show were designed to: reduce operational and energy costs, improve building automation, and better meet the green building standard.
Building Automation Requires More Accurate Control
Building automation systems (BAS) have microprocessors that track and transfer environmental and data changes to controllers. In a nutshell, BAS adjusts lighting and indoor air quality to reduce electric costs. In the HVAC industry, a “critical environment” is one in which power or ventilation loss causes serious health or safety risks. Non-critical environments could get away with mildly accurate sensors since not much is at stake. But systems made for high-risk areas need perfectly accurate sensors, and meet the building’s strict reporting criteria needed to track air and lighting changes in the building.
Green Building Standard is Evolving
As the need for construction jobs increases, so does the green building standard. Sustainable buildings are slowly becoming less costly to maintain. The SmartMarket 2016 World Green Building Trends report shows that green buildings cost 14 percent less to operate than traditional buildings. The demand for green building is expected to double every three years. LED lighting, variable refrigerant flow (VRF) and solar power are just some solutions that take the industry by storm. The National Oceanic and Atmospheric Administration Center in Pearl Harbor is another sustainable design, which won an award. This building’s passive cooling system pumps seawater to the rooftop and sends water-cooled air into the building without mechanical fans. The building’s chillers reject heat into the seawater, which saves more energy and operational costs than traditional towers.
Editors Note: (Read the 2018 report here)
Big and Small Data Matter
Software plays a big role today in HVAC design, data analysis, repair and maintenance. Internet of Things (IoT) sensors help track a unit’s condition, usage patterns and other data needed to improve product design. Emerson Climate Technologies predicts that by 2019, 75 percent of thermostats will be Wi-Fi enabled. Many HVAC companies focus on “big data” trends and patterns of their products. But HVAC software is useless without the small data which helps troubleshoot and improve product performance. Some companies may not have time to do data entry since small data accrues.
Luckily, HVAC techs can enter inspection data into a field service software app and gain instant feedback. A central system stores this data, which the office can access. Most field service apps are Cloud based and can be used by laptop, tablet and Smartphone.
Boosting HVAC Energy Efficiency
Boosting HVAC Energy Efficiency is not dependent on any one process. Data collection and monitoring, building automation systems, staying current on green building standards, and routine inspection by HVAC service technicians all factor into performance. Visit our website Here to read more on
Excerpted from the original which was posted in HVAC by Mrinal Gokhale and can be read in full Here