98-01: Noise Testing of Cooling Tower Fan Drives Legionnaires' Disease

98-01: Noise Testing of Cooling Tower Fan Drives Legionnaires' DiseaseMore stringent noise emission requirements and advances in noise reduction of other cooling tower components are focusing more attention on the noise emitted by the cooling tower gear drive. This paper discusses a state of the art test system for determining noise and vibration characteristics of right angle cooling tower gear drives. The test system applies torque and axial thrust loads to simulate actual fan loading conditions. System capabilities,

closed-circuit cooling towers

Testing Procedures

This can have high economic consequences due to a loss of thermal exchange

Kuala Langat Power Plant (KLPP) draws water from the Kuala Langat River

The CTI ATC-105 Acceptance Test Code covers the determination thermal capability of evaporative water cooling towers

creating a potentially significant Biofouling problem on heat transfer surface

it is common for the cooling tower manufacturer to set the pitch a little lower than the pitch which would result in full amp draw from the motor

is examined in light of this data

equipment manufacturers have grasped for a concrete method to obtain such a certification

The correlation between the psychrometer and the thermodynamic wet bulb temperature is reviewed

Naturally there are corrosion problems

since mechanical vibration is usually a source of sound and is often part of a means by which sound is transmitted