Box-Shaped Air Intake Silencer with Vertical Baffles

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Solution Overview

Problem

Conventional air intake systems for gas turbine systems are either large and costly or small and complex, leading to inefficiencies in noise reduction and fluid flow, with existing silencers affecting compressor efficiency due to pressure loss and acoustic insertion losses.

Innovation Solution

A box-shaped air intake silencer system with modular, vertically spaced baffles that receive perpendicular airflow, featuring a rounded profile at the intake side and a tapered profile at the exit side to minimize pressure and acoustic losses, allowing for a compact, lightweight design that is easy to manufacture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a large silencer system is built to allow fluid to move freely and reduce pressure loss, then fluid flow efficiency is improved, but the system becomes costly and occupies more space

Engineering Contradiction:
Improvepressure lossVSAvoidsilencer system size
Core Design Contradiction:
Loss of energyVSVolume of stationary object

Solution Approach 1:

The silencer system is divided into multiple vertical baffles spaced at intervals within the housing, creating separate flow channels. This segmentation allows the fluid to move freely through multiple paths, reducing pressure loss while maintaining a compact overall size.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from conventional horizontal or complex 3D silencer designs to a vertical baffle arrangement within a box-shaped housing. This dimensional reorganization optimizes space utilization and reduces the footprint while maintaining effective flow paths.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of stationary object

If a small silencer system is used to reduce size and cost, then space and manufacturing complexity are reduced, but the system becomes heavy and complicated in design

Engineering Contradiction:
Improvesilencer system sizeVSAvoiddesign complexity
Core Design Contradiction:
Volume of stationary objectVSDevice complexity

Solution Approach 1:

The use of multiple simple vertical baffles replaces complex internal structures. Each baffle is a straightforward vertical element, and their simple repetitive arrangement achieves silencing and flow management functions without design complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the geometric parameters of the silencer housing to a box-shaped configuration with optimized dimensions, allowing the system to be compact while using simple vertical baffle elements rather than complex curved or irregular shapes.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If sound attenuating materials are used to reduce noise, then noise reduction is improved, but the fluid flow properties are negatively affected and compressor efficiency decreases

Engineering Contradiction:
ImprovenoiseVSAvoidcompressor efficiency
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The invention extracts or removes the sound attenuating materials from the direct fluid flow path. By placing vertical baffles without heavy acoustic lining in the flow channels, the system reduces noise through baffle interference while minimizing negative effects on fluid flow properties and compressor efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The vertical baffles act as intermediary structures that provide noise reduction through acoustic interference and reflection without requiring sound attenuating materials that would obstruct fluid flow. The baffles mediate between noise control requirements and flow efficiency needs.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Object-affected harmful factors

If conventional silencer designs are used to achieve noise reduction, then acoustic insertion loss is obtained, but the systems are either large and costly or small and heavy

Engineering Contradiction:
Improvenoise reductionVSAvoidsilencer system weight
Core Design Contradiction:
Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

The noise reduction function is achieved through multiple segmented vertical baffles rather than a single heavy mass or dense acoustic material filling. This segmentation provides acoustic interference-based noise control with significantly reduced weight.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention replaces heavy mechanical sound absorption materials with a lighter baffle-based acoustic interference system. The vertical baffles create acoustic paths and reflections that reduce noise without requiring dense sound attenuating materials, thereby reducing overall system weight.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The silencer system achieves comparable or better performance in noise reduction and fluid flow efficiency compared to conventional systems, while being smaller, lighter, and less expensive to produce, making it suitable for confined spaces and various gas turbine applications.

Implementation Method 1

the vertically, spaced baffles are operative to receive the perpendicular flow of intake air proximate the first end of the silencer housing and direct the intake air towards the second end of the silencer housing for passage therethrough

Methodology Applied
Scientific EffectFluid flow:

Implementation Method 2

the air intake system typically includes a silencer system for minimizing the noise created during operation of the gas turbine system

Methodology Applied
Scientific EffectAcoustic absorption: Acoustic Absorption

Data Source

PatentUS11815018B2Box-shaped air intake silencer with vertical baffles for gas turbine system
Publication Date: 2023.11.14 GE INFRASTRUCTURE TECH LLC
  • US11815018B2 patent drawing
  • US11815018B2 patent drawing
  • US11815018B2 patent drawing

AI summary

A box-shaped air intake silencer with vertical baffles for a gas turbine system. The box-shaped silencer has a silencer housing having opposing ends with a first end closed and a second end opened to permit passage of air. Opposing sidewalls extend between the first end and the second end with each of the sidewalls operative to receive a perpendicular flow of intake air. A silencer having vertically, spaced baffles are disposed within the housing. A first end of the baffles face the first end of the housing and a second end of the baffles faces the second end of the housing. Each of the baffles extend horizontally between the first end and the second end of the housing. The baffles receive the perpendicular flow of intake air proximate the first end of the housing and direct the intake air towards the second end of the housing for passage therethrough.