Date
Inquiry

In order to further ensure the health and well-being of all building occupants, as well as to conserve energy and water, the hospital East and North Wing Addition project will furnish and install a Clearwater Systems Corporation Dolphin Series 2000 Pulsed Power Water Treatment System on its cooling tower water recirculating line. This system will replace a traditional chemical-based cooling tower water treatment system. The proposed Dolphin system advantages and processes include: a. The ability to change precipitate formation from surface nucleation (scale) to colloidal nucleation (bulk-solution powder). b. The ability to keep the system free from mineral scale on the fill material, pipes, heat exchangers, and other components in the system, which results in energy savings. c. The ability to control the population of microorganisms such as bacteria and algae by incorporation into colloidal precipitates (encapsulation) or damaging by pulsed electric fields (electroporation). d. The ability to permit operation at lower blowdown quantity, resulting in water savings. Because the Dolphin operates by forming a powder precipitate, water usage must be measured by flow meters on make-up and blowdown or by the ration of a particular mineral in the make-up and blowdown water but not by the ratio of conductivity of the make-up and blowdown water. e. The result that the blowdown water contains no added chemicals, aiding in the hospital\'s conformance to discharge regulations. The hospital has worked closely with the design team on this system redesign effort, and the inclusion of the Dolphin system in the project helps achieve a primary mission of the hospital which is to provide leadership and innovation in the changing healthcare environment. Please confirm that your 7/22/05 ruling (on 6/28/05 submission regarding this Pulsed Power Technology) will allow the project to seek an innovation credit. While this design strategy may aid the project in terms of reducing energy and water consumption, the primary intent of the strategy is the elimination of toxins from the environment. This particular strategy does not seek LEED credit for energy or water savings - these savings are already embedded in the overall project strategy. INTENT Ensure health and safety of occupants through the elimination of toxic chemicals and processes from cooling tower/chiller water treatment proceedures. Conserve energy and water use, as well as reduced sewer effluent, as compared to traditional chemical water treatment. REQUIREMENTS Provide a system that achieves the following: 1) Elimination of chemical treatment procedures at cooling towers. 2) Reduce energy consumption by 3-5% annually, and water consumption and sewer effluent by a minimum of 15% annually, as compared to traditional chemical based cooling tower treatments. SUBMITTALS Provide letter template, signed by the Mechanical Engineer, that the project is using an energy and water-efficient, non-toxic system for treatment of cooling tower water recirculating lines. Include manufacturer\'s equipment cut sheets, with proposed equipment utility consumption data.

Ruling

This type of technology has been previously approved as an innovation credit and must be documented per the IDc1.3 CIR ruling dated 7/22/05.

Internationally Applicable
Off
Campus Applicable
Off