Demand Control Ventilation for Energy Reduction in Laboratories

Introduction

Of all building types, research laboratories are some of the most resource-intensive where they consume enormous amount of energy for the use from research activities to lab operation and more. Therefore due to its unique operation and energy demand, conventional laboratories are operating using 100% outdoor air at high air change rates (ACH) ranging from 6 to 12 ACH or even higher.

Prescriptive codes and standards like NFPA 45, OSHA, etc. have revised their prescribed ACH to performance basis which provides opportunity in optimizing energy for laboratory facilities.

 

One concept (known as ‘demand control ventilation, DCV’ can be applied in high density spaces like chemical labs and optimize the supplying airflow accordance to the lab environment without compromising safety. 

Working Principles

• Integration of measuring sensors like TVOC, Particles, CO, CO2 and Dew point.
• Centralised air data sampling network.
• Transmitted air data from the sensors to the information management server to optimise the ventilation rates.    


Energy optimisation from the concept

 


Overall view of the network

 

Benefits

• Simple which uses centralized system concept.
• Saving in maintenance costs since the number of sensor per type is installed at the minimum.
• Maintaining and enhancing safety within the laboratory and designated spaces.
• Improves Indoor Air Quality (IAQ).
• Delivering proper ventilation and provide opportunity in energy reduction in the ACMV cycle.

 
Contact
Tan Leong Peng
lp.tan@ntu.edu.sg

 

Collaborators

Joule Air

 

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