Laboratories consume massive amounts of energy, often directly correlated to the number of fume hoods in operation. One fume hood consumes as much energy as a single-family home in a 24-hour period.
1. Constant Volume Vs Variable Air Volume
Making the switch from CAV to VAV can save thousands! In some cases labs have reduced energy consumption by as much as 75%. CAV systems constantly pull the same volume of air whether in use or not. VAV systems reduce the exhaust rate when the hood is not in use.
2. Lower The Sash
Harvard found that much of the operating costs was because sash doors were left open when not in use. By making a competition of lowering the sash, Harvard saved in excess of $200,000 per year.
3. Optimize Ventilation Rates
Based on the type of fume hood and chemicals used, your lab's ventilation rates may be able to be improved. Newer technology and changes in standards can help lower rates significantly.
4. Decommission Unused Fume Hoods
As occupancy changes or the number of fume hoods needed is reduced, decommissioning unused units will reduce strain on your HVAC system and save money.