Monday, January 30, 2017: 11:00 AM-12:00 PM
Water-Energy Nexus
Chair:
Dan B. Weimar, Chem-Aqua, Inc
Technical Committee: 3.6 Water Treatment
Specifying the water usage ratio for HVAC equipment is an increasing goal in high performance building designs. This session introduces the concept of saturation indices for heat transfer systems, and demonstrate the tools available for predicting water consumption, water treatment control limits and chemical treatment directives. We will further delve into how the indices can be utilized to develop a successful water treatment program which balance water consumption and equipment life. This seminar provides the engineer, owner and operator with the tools and understanding necessary, for an efficient HVAC system, regardless of local makeup water quality.
1 Should Your Water be Used As Delivered? Softened? Blended Back? RO? or What? If Blended Back, How Much?
Engineers often work on projects in areas where they have not worked before. When that happens, how do we decide whether the incoming water should be used as-is or treated for domestic use? Should it be softened? Should only hot water be softened? Should soft and raw water be blended? If so, in what ration? Is RO needed for some applications? This presentation introduces a spreadsheet that may become an ASHRAE tool offering that will help engineers to make those decisions based on something more than what the building next door does.
2 How Water Treatment Programs Utilize Saturation Indices to Reduce Water Consumption and Protect System Equipment: A Case Study
Specifying the water usage ratio for HVAC equipment is an increasing goal in high performance building designs. This session introduces the concept of saturation indices for heat transfer systems, and demonstrate the tools available for predicting water consumption, water treatment control limits and chemical treatment directives. Presenters explore how the indices can be utilized to develop a successful water treatment program which balance water consumption and equipment life. This seminar provides the engineer, owner and operator with the tools and understanding necessary, for an efficient HVAC system, regardless of local makeup water quality