TP25-09 Case Histories in Solving Natural Frequency Standards and Specifications

TP25-09 Case Histories in Solving Natural Frequency Standards and SpecificationsVertical pumps servicing a cooling tower at a co generation facility were experiencing premature bearing and seal failures. The pump array, shown in Figure 1, consisted of six 750 kW (1,000 hp) units all discharging into a common header. There were three pairs of pumps, each pair supported on a common flexible steel framing system that spanned the walls of a concrete sump pit. Provisions (pipe stubs) were provided for future expansion to include three

Because of the aggressive process and environmental exposure conditions

of which 26 are existing and five are under construction

and differential performance of agar media

HDG has been

why vibration from cooling towers is a problem

Ohio in 2011

The purpose of this paper is to introduce a family of liquid biocides based on bromine chloride as the active ingredient

the Cooling Tower Institute believes that a well-organized testing program on the part of an individual user company on its operating towers can lead to their optimal utilization with respect to other pieces of equipment in the plant

has become the standard material for cooling tower blades due to its great strength to weight ratio and resistance to corrosive elements that are present in the production of certain chemicals and other corrosive materials

Before considering the Cooling Tower Institute as it emerges today

an unfortunate side effect is that plastic packings suffer from the build up of surface fouling in service

different triazole chemistries were used as a protective filming inhibitor for yellow metal