Tankless water heaters saved California State University Northridge money in energy costs. Beverly Watson can easily laugh about the idea today, now that her recent tankless water heater retrofit project
As noted in last month’s column, accessibility
to mechanical, electrical, and control system components is critical for
sustainable systems operation. However, the design and construction industry is
sorely lacking when it comes to agreeing on what appropriate accessibility
means. In order to make a meaningful difference in how systems are delivered to
owners/operators, it is critical to define measurable accessibility acceptance
criteria early in the design phase and allow the commissioning professional to
shepherd that criteria through the design, construction, and acceptance phases.
An energy analysis paid for itself at this Illinois bank by identifying energy savings opportunities. When Jason Vogelbaugh, director of Energy Solutions at Alpha Controls & Services, (Schneider Electric’s Rockford,
system experts see flow as a key step to optimizing system efficiency. Cutting
down required tubing size, insulated PEX for district systems, and
variable-speed pumps to pin down a chiller’s exact needs are three points of
attack in the modern campaign against waste.
VFDs and a new chiller reduced this Texas hospital’s carbon footprint. With large central utility plants, over-taxed HVAC systems, and ever-increasing utility costs, many hospitals face the dual problems of
An engineer with the 9th-largest school district in the United States writes about the IAQ testing and final report that his district commissioned. From offices to classrooms to cafeterias and restrooms, the monitoring was extensive. Read the results and some author comments about acceptable IAQ in schools, the possibility of overdoing fresh air, and the associated costs.