89-06: Polymer/HED Blends for Calcium Carbonate Deposit Control Repair and Construction

89-06: Polymer/HED Blends for Calcium Carbonate Deposit Control Repair and ConstructionThe calcium carbonate deposit control performance of polymer HEDP blends was compared in laboratory process simulation. Two primary characteristics were studied: threshold inhibition, where calcium and carbonate were maintained as soluble species in solution, and deposit control measured as resistance to heat transfer (fouling factor) in an "out of balance" condition where complete threshold inhibitor was not achieved. The recirculating water

Whether using galvanized steels

often complex

Chapter 17 of the International Building Code (1BC) requires manufacturers of designated equipment to provide a certificate of compliance verifying that the equipment will meet pertinent earthquake load criteria

environmental constraints

When the water quality standards-setting exercises began

105 (ATC-105) dealing with collection and reduction of field data

What has caused this change

A challenge in successful operation of cooling towers today with VFD's revolves more around proper application than technological limitations in the equipment

If the enhanced cooling tower is operated as an evaporative chiller that can completely displace refrigeration equipment

system make-up

We're concerned about our customers' property -conservation and fully realize that having no losses preserves property and profits

August 1997