How are the chillers staged in an OptimumHVAC chiller plant?
This is an entirely new method of chiller sequencing called the “Natural Curve” method of sequencing. The Natural Curve is a term coined to describe the most efficient operating load point of a chiller at various head (condenser and evaporator temperature) conditions. Typically, the Natural Curve for a constant speed chiller is at or very near full load at all head conditions, but for a variable speed chiller the most efficient operating point is at much lower loads and varies with the head conditions. Thus, a curve can be developed for variable speed chillers that plots their most efficient operating point at various head conditions, and this curve is called the Natural Curve of the variable speed chiller.
Related Questions
- Is it cost-effective to retrofit an existing constant speed chiller plant to an OptimumHVAC plant, and if so, how is that accomplished?
- If chillers run longer at lower loads in OptimumHVAC plants, does that mean chiller maintenance costs will rise?
- Are there any new operating or maintenance issues that should be considered with an OptimumHVAC chiller plant?
