Heat Recovery Performance Verification
Four (4) large air handling units (AHUs) in one of the buildings have heat recovery; however, only two (2) were operating efficiently. The heat recovery system supplies a 50% glycol solution to the four (4) heat recovery coils in AHU-1A, AHU-1B, AHU-1C, and AHU-1D. The system utilizes a single 100 HP constant flow pump which […]
The Leaking Preheat Valve Mystery
This leaking preheat valve case is unique. It is a rare issue due to the site location and the conditions under which it occurred, and it took time and collaboration to solve. It required both data analysis and field investigation to identify the fault and determine the root cause.
Dashboards and Beyond – Register for July 18th webinar
The Smart Energy Analytics Campaign is a program led by the U.S. Department of Energy that encourages the use of a wide variety of commercially available Energy Management and Information Systems (EMIS) technologies and ongoing monitoring practices to help uncover those energy-saving opportunities and improve building performance for the long run. Several times a year […]
Inlet guide vanes not operating correctly
Two large air handlers (AHUs) in the building with inlet guide vanes (IGVs) were operating at higher flows than required. This issue was not detected at the site as adequate temperature and humidity conditions were maintained in the zones. However, Analytika determined that zone conditions were not being achieved in the most efficient way possible.
Cambridge City report on Net Zero Action Plan
Cambridge, MA is on the path to becoming a net-zero community. A net zero-energy community (ZEC) is one that has greatly reduced energy needs through efficiency gains such that the balance of energy for vehicles, thermal, and electrical energy within the community is met by renewable energy. In 2015 City Council unanimously adopted the Net Zero Action Plan, a 25-year […]