Gas Turbine Package

Weather Hoods

A gas turbine weather hood is the best possible protection against the ingress of rain, snow, sleet and hail. AAF weather hoods are designed so the air enters the inlet system vertically upwards and in doing so makes it extremely difficult for large amounts of moisture to enter the inlet filtration system.

• Wide range of designs

• Available in different material options

Air Intake Filtration System

A gas turbine or large compressor air intake filtration system forms a vital part of any given plant. The volume of intake air, the surrounding environment, and the operating conditions all play a major role in the design and filter element selection process. See related products for further details.

• Extensive product range

• Solutions to suit all applications

Air Inlet Heating Solutions

Inlet heating systems for cold climates are designed to protect gas turbines from damage due to icing and to keep the machine running with minimum effect on performance. Icing can block inlet filtration equipment, increasing pressure drop, and potentially cause the gas turbine to shut down.

• Heat the inlet when the engine is offline

• Prevent frost and ice damage

Air Inlet Cooling Solutions

Gas turbine output is affected by the temperature of the air entering the compressor. Gas turbines are rated at a temperature of 59 °F (15 °C). If the temperature increases above this point there is a loss of power, but this can be restored with AAF’s cooling solutions.

• Boost power output

• Short payback period

Inlet Silencer & Exhaust Silencer

A gas turbine silencer is found in the intake as well as the exhaust to meet the overall noise control requirements. Once the acceptable sound level has been established it is then a matter of determining the amount of attenuation needed to reduce the noise to the desired level.

• Wide range of inlet and exhaust silencers and baffles

• Upgrades and modifications available

Gas Turbine & Generator Enclosures

AAF enclosures provide an acoustic barrier, fire protection, turbine cooling and weather protection for your gas turbine and/or generator. Each enclosure is designed and manufactured to suit the individual requirements of the gas turbine being enclosed.

• Manufactured in a range of steels, including A0, H0 & H60 fire ratings.
• Available with lifting beams, lighting, fire and gas detection and protective systems.

Ventilation System

A gas turbine ventilation system feeds into the gas turbine enclosure and is designed to remove the hot air generated when the turbine is operating with ambient air from outside. Incoming air can be cooled or heated depending on the seasonal conditions and filtered to remove air contamination.

• Avoid gas pockets inside the enclosure
• Cool sensitive components

Dampers

In a gas turbine application, a damper is used to allow the hot exhaust gas to either be discharged through a bypass stack or redirected into a Heat Recovery Steam Generator (HRSG). Steam is generated for industrial processes or to drive a steam turbine to generate more electricity.

• Available in a wide range of designs and sizes
• Low thermal losses and optimal sealing technology

Ductwork & Support Structure

A gas turbine or large compressor air inlet filter housing is usually above ground level and is held in position with a heavy-duty support structure, which includes a walkway for servicing. Duct work is also a vital part of the overall gas turbine package and is used as a transition between the key component parts.

• Experience of significant load bearing structures
• Wide range of materials with optional extras e.g. external ladders

Exhaust Diffuser

The gas turbine exhaust diffuser duct or plenum duct is where the gas turbine enclosure transitions into the exhaust system. The hot exhaust gas from the gas turbine flows through the diffuser in a straight line until it reaches either the diverter damper or the exhaust stack.

• Suitable for extreme operating conditions
• Extensive experience and expertise

Exhaust Stack

The gas turbine exhaust stack is a critical component of the exhaust system. Due to our years of experience AAF’s exhaust stacks are engineered to deliver optimal performance, reliability, and durability. They meet all OEM standards and can be adapted to your performance goals.

• Full service from initial design, to manufacturing, and installation
• Can include noise control with our range of silencers