This article originally appeared Health Facilities Management
By Fred Woo, P.E., Manager of Engineering at Optimum Energy
Strategies to maximize HVAC system output
Optimizing HVAC system output can help to reduce energy and water bills
A health care facility’s HVAC system — the chilled water plant, steam and hot water plant, and air distribution system — typically accounts for 33 percent of its electricity and 57 percent of its natural gas use. Chilled water plants also consume substantial water.
That makes these systems ripe for optimization, which means getting away from the philosophy of applying more energy to hide the symptoms of system deficiencies and, instead, finding a way to deliver the most system output with the least system input.
HVAC optimization involves automatically controlling HVAC systems to deliver needed heating and cooling at energy-efficient levels. This goes beyond recommissioning or traditional static setpoints and proportional-integral-derivative-based controls. Optimization solutions should measure the system input (i.e., electric, gas, water) and the system output (i.e., heating, cooling, airflow, water flow), and use that data to operate the system in real time.
Typical optimization projects provide payback in three to five years, with savings starting immediately. In addition to automatic control, HVAC optimization provides energy monitoring and fault detection, which can enable facilities personnel to improve operations without increasing head count.
Read the full article here: https://www.hfmmagazine.com/articles/3226-strategies-to-maximize-hvac-system-output