Energy Savings Measures in BSL-3

In year 2013, one of our clients who had been incurring an extremely high utilities bill for a period of time, approached PowerQ to review their billing.

The Biosafety Level 3 Lab was a research facility with more than 24 ACH. Based on the design, air was not reticulated to protect the scientists safe from any hazards such as chemicals, virus and bacteria.

PowerQ reviewed the billing in comparison with other similar facilities and had proposed to:

  • Assess physical condition of systems and equipments
  • Identify present operating condition, and any deficiency found are rectified
  • Assess energy saving potentials and options

The challenge was to save energy while not interrupting lab operations and the hardware or control systems.

PowerQ performed the following tasks:

Task A – Brief Review Of Specification and Construction As-Built Drawing

PowerQ reviewed the following specifications for mechanical and electrical systems. These include:

  • Review of specifications and as-built drawings
  • Review the basis of design and set points with the current need of the Lab
  • Review user requirements
  • Review available T&C test results and current performance data
  • Conducts test to confirm current performance
  • Review O&M Manuals

Task B – Site Verification of Performance Operation

Performance evaluation of energy systems such as environmental control laboratory. This is to determine the actual performance of the current running unit against the design value. Air volume measurement and pressure profiling in comparison with the design were done. Spot reading of selective AHU, operating current, air flow static pressures and supply/return temperature, review of current BMS data, operational data and operating hours of fume hood and lab system were evaluated.

Task C – Implementation of Energy Saving Measures

The Following were implemented to reduce energy consumption:

  • Night Set Back
  • Weekend Set Back
  • Reduction of hood exhausts flow velocity from 0.45 m/s to 20% and monitoring performance
  • Change in sequence of operation
  • Change in room temperature settings during non-occupied hours and weekends
  • Re-programming VAV system for fume hoods

After implementation of the energy saving measures, the energy bills were monitored for 6 months. It was established that more than 20% reduction in energy billing was achieved.


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Updated on

June 11, 2018