Refrigeration systems are typically controlled with a low and constant pressure/temperature set point. The colder set point ensures there is enough capacity all the time, particularly for a hot summer day.
Energy costs represent a significant expense for facilities that operate industrial refrigeration systems. For refrigerated warehouses, it is estimated that utility costs can be as high as 17% of revenue.
For the electrical cost of running the chiller, you get some or all of the heat you are removing from your chilled water, a reduced load on the cooling tower, and all the power you put into the chiller back as heat.
A ground source heat pump uses the ground as a thermal energy source to heat a building, or as an energy sink to cool a building. A geothermal heat pump does the same thing, and the terms can be used interchangeably.
No matter where you are, there are typically times throughout the year when economizing, or “free cooling”, is possible for commercial space conditioning, process cooling, and certainly data centers.
At Michaels, our purpose is minimizing waste and maximizing value. That purpose, combined with our core values of proactive and responsive service, intuitive analysis, collaborative partnerships, and fanatical execution, forms the foundation of our culture.