CAT Titan 250 - Manual (Page 47)

Turbomachinery Package Specification Titan 250 Generator Set
11.2 Standard Features
11.2.1 Inlet and Exhaust Ventilation Silencers
The enclosure ventilation openings are equipped with silencers with weather louvers.
11.2.2 Single-Fan Ventilation
A single high efficiency motor-driven fan provides enclosure ventilation. The ventilation
fan provides airflow to ensure the enclosure internal air temperature remains within
acceptable limits. Fan size can vary depending on the ventilation system filtration
configuration. Fan motor wiring is terminated at the motor junction box. Enclosure
ventilation openings are provided to facilitate airflow circulation. For additional ventilation
or certification requirements, a dual fan ventilation system may be selected as an option.
11.2.3 Enclosure High Temperature Alarm
A heat sensor, completely separate from the fire system thermal detectors, is mounted in
the enclosure. The sensor is set to activate an alarm if enclosure temperature is
abnormally high.
11.2.4 Pressurization System
The ventilation airflow through the enclosure can be controlled to provide either positive
or negative pressure relative to the outside pressure. Hazardous area classifications and
the applicable codes and regulations will determine the pressurization requirements for
specific projects.
11.2.5 Lighting
Fluorescent lighting is provided to illuminate the enclosure interior. Lighting on/off
switches are provided on the enclosure exterior.
11.2.6 Sound Attenuation
The sound-attenuated enclosure is intended for use with suitable gas turbine air inlet and
exhaust silencing systems in environments where low noise levels are required.
Enclosure ventilation openings are equipped with silencers to achieve maximum sound
attenuation. The actual achievable noise reduction is a function of the noise source,
installation considerations, other equipment in close proximity, and the acoustical
characteristics of existing buildings and barriers.
The intent of the enclosure design is to comply with U.S. Occupational Safety and Health
Administration (OSHA) standards for eight-hour employee exposure. Transmission loss
of the panels in decibels is available upon request. Further information is available in
Solar’s publication SPNP, “Noise Prediction Guidelines for Industrial Gas Turbines.”
11.3 Optional Features
11.3.1 Enclosure Configuration
An enclosure can be selected to house both the gas turbine and generator or only the
gas turbine.
11.3.2 Dual Fan Ventilation
The enclosure can be ventilated with a dual AC motor-driven fan system. The fan motor
wiring is terminated at the motor junction box. Openings are provided to ensure adequate
airflow is circulated through the enclosure. For Conformité Européenne (CE) Mark
certification, the second or backup ventilation fan is mandatory and must be powered by
© 2008 Solar Turbines Incorporated. All rights reserved. TPS250GS/908 - Preliminary
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