93-07: Simultaneous Comparison of the CTI HBIK and the EPA Method 13ACooling tower drift is defined as the percent of circulating water flow that exits from the cooling tower fan stack in the form of fine water droplets and aerosols entrained in the exhaust air. For cooling tower drift tests, the CTI recommended heated Bead Isokinetic (HBIK) procedure is the most commonly used procedure and is close to being accepted as a code by CTI, whereas regulators prefer the EPA Method 13A procedure. In theory both procedures (if

Following the enactment of a local regulation in the Province of Quebec in Canada

Staining methods as a means of identifying particular species

chemicals were metered into the cooling water in proportion to blowdown water flow

Testing was conducted at a cooling tower of a Spanish hospital

Most of us understand that a Biofilm could have several layers with a protective film or slime between each layer

With wider use of highly efficient film and increasing interest in water conservation many cooling towers are experiencing plugging associated with the concentration of suspended solids from the make-up water

requirements for this solution are not always met

increased fluid frictional resistance

This paper is focused on delineating the few fundamental design considerations and methodology that can be adopted for development of axial flow fans which are used in Air-cooled Heat Exchangers

and safety issues are presented

For this reason larger projects are requiring more back-to-back cooling tower configurations

The properties of one of these inhibitors are discussed