The indoor environment affects your health, here’s what you can do about it:

The indoor environment affects your health, here’s what you can do about it:

A snake plant, pictured above, is one of the many plants that can naturally filter your air.  Near the end of this article there’s a link to six other plants that are also great air filters.

Making an indoor environment healthy for human occupants is not as simple as it seems.   There are Continue reading

AC Motors, VFDs, and Energy Savings at Toronto General Hospital

I’d like to share two recent energy projects at Toronto General Hospital, which used VFDs to achieve significant energy savings and improve control.  When I say significant I mean that the savings could buy a house, well maybe not a house in Toronto.  There is also a fairly technical explanations of motors and variable frequency drives but I’ll leave that to the end for obvious reasons.

SCWP VFDs

VFDs and Harmonic Filters on Secondary Chilled Water Pumps at TGH

 

Project 1: Reinstate VFD operations on Air Handling Units

At TGH we had 17 old Continue reading