With tightening regulations, your business needs solutions that meet or exceed community noise standards, occupational health requirements and environmental regulations for turbine and engine emissions.

INNOVA's systems are deployed all around the world from the smallest engines to the largest turbines, in a wide range of environments and acoustic requirements. Whatever you need, we have a solution that will work for you.

Our complete line of auxiliary products includes:

  • Inlet filter houses
  • Intake silencing systems
  • Anti-icing / inlet heating systems
  • Turbine and generator acoustic enclosures
  • Exhaust diffusers
  • SCR and CO catalyst systems
  • Bypass systems / diverter dampers
  • Higgott-Kane™ gas turbine exhaust systems

Proven OEM Experience

Since our inception as Higgott-Kane™, INNOVA has over 40 years of technical expertise engineering silencing systems for clients around the globe. OEMs consistently turn to us for their equipment and turbine silencer needs because of our best-in-class products, superior customer service and performance guarantee.

Excellence in Engineering and R&D

Our engineers are considered to be the top talent in their field and are renowned for developing the highest quality products through our laboratory and on-site research, development and testing regimen. Our skilled engineers are committed to creating INNOVAtive solutions to meet your needs with integrity and in the most cost effective and responsible manner. Whatever the challenge, type of condition or specification, INNOVA has a reliable solution.

Our in-house engineering capabilities include:

  • CFD (computational fluid dynamics) analysis of gas velocity, component concentration and temperature distribution
  • FEA (finite element analysis) of mechanical components
  • 3D solid modeling
  • Low frequency noise and vibration analysis
  • CadnaA 3D noise propagation models and proprietary silencer performance modeling

As noise and emissions regulations tighten, we stand behind each project with a performance guarantee, which is backed by extensive post-installation site testing for optimal performance delivered at the lowest possible cost. INNOVA has tackled some of the world's most difficult acoustic applications, and we have always delivered successful performance.

Global Capabilities

No matter where your site is, we have a global network of pre-approved fabrication and construction contractors so that we can provide you with the lowest total cost solution and meet your critical schedule milestones. All of our sub-contractors are qualified and controlled under our strict ISO 9001-2008 quality management program.


Our experienced Project Managers and Quality Assurance Supervisors can provide installation of our systems, with award-winning attention to safety, on-time and on-budget.

The INNOVA Difference

With a successful track record of more than 750 turbine and recip engine installations, and over three decades of experience, INNOVA offers a performance guarantee to give you total confidence and peace of mind.

To find out more about how we can engineer a solution for you, contact us now for a free quote.

Gas turbine and engine exhausts produce high levels of noise, rapid and extreme heat build-up and turbulent fuel flow. That's why you need a proven exhaust system that meets the most stringent of noise regulations while surviving under the stress of a harsh environment.

INNOVA has installed over 750 Higgott-Kane™ exhaust silencing systems worldwide with proven, efficient and measured results to meet dBA, dBC, octave band, and tonal performance requirements. Whatever your application from power generation to natural gas compression or offshore platforms worldwide, our exhaust systems are designed to meet noise regulations no matter the size of your engine or turbine.

Gas turbines and reciprocating engines are major sources of low frequency noise and INNOVA has tackled some of the most difficult low frequency noise, start-up transient noise, and atmospheric effects problems in the world. With numerous successes and data to draw on, INNOVA is well suited to solve your acoustic gas-turbine problems.

Need an exhaust system?

Have INNOVA's engineers provide the optimal end-to-end solution for your gas turbine emissions needs. Our systems include one or more of the following components:

  • Higgott-Kane™ exhaust silencer
  • Exhaust system ducting
  • Exhaust stack
  • Bypass stack
  • Bypass diverter damper
  • SCR/CO catalyst system
  • Expansion joint
  • Exhaust diffuser/plenum
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Best Practice in Engineering Design

Our in-house engineers hold every product to the highest of standards and compliance requirements. For design integrity, the structural analysis program STAAD assists in the design of exhaust system support structures, while a thermo-mechanical analysis of gas turbine exhaust systems is performed using ANSYS. Special attention is also paid to critical components like acoustic baffle supports, to ensure survival under the high cyclic loading and thermal growth stresses seen in all exhaust environments. In-house CFD and 3D modeling and finite element analysis is used to ensure all design limits for pressure drop, local velocity limits in critical silencer sections, temperature and flow profiles, and mandated non-cyclonic flow requirements are met.

Guaranteed Results

We have the experience to design your system to meet the critical noise limits associated with many new and retrofit exhaust system applications. Whether it's low frequency noise, an octave band guarantee, "A" – Weighted limits or "C" – Weighted limits, you can rest assured that we'll meet your tight noise regulations - guaranteed.

To find out more about how we can engineer an exhaust system for you, contact us now for a free quote.

Trust in Innova's 40 years of OEM design and manufacturing experience to provide gas turbine intake silencing and filtration specific to meet your needs. Our custom designed, high quality intake solutions are guaranteed to reduce noise while extending the life of the turbine or engine and preventing fouling to save you money in down-time and repairs.

Innova's engineers design each gas turbine silencing system to ensure that the following critical requirements are met:

  • Ambient air drawn into the system is free from debris which can cause damage
  • Internal components are constructed from heavy gauge, special grade materials and paint finishes to ensure critical cleanliness
  • Critical noise limits are met using our vast silencing experience
  • System pressure drop is minimized using our CFD analysis tools and proven site data
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Gas Turbine & Engine Intake Systems

Hundreds of our custom-designed intake systems are in operation worldwide and for a variety of turbine and engine types and models. Your complete solution may include:

  • Air filtration
  • Evaporative cooling
  • Fogging systems
  • Anti-Icing
  • Inlet heating
  • Noise control
  • Ducting
  • Flexible joints
  • Dampers
  • Supporting steelwork
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Total Solutions for Gas Turbine Systems

Our complete line of intake system products can give you the peace of mind that comes with single source responsibility for system performance – all backed by the INNOVA guarantee.

A gas turbine bypass system diverts flue gases from the Heat Recovery Steam Generator (HRSG) in combined cycle mode to a bypass stack with a silencer assembly to operate in simple cycle mode. Maintenance can then be performed on the HRSG as the diverter isolates it completely from the gas turbine.

Another use of the bypass diverter system allows for combined cycle operation during the day and simple cycle operation at night when power demand is lowest. Additionally, the diverter permits power to be generated by the gas turbine even when the steam turbine cycle is down for a scheduled or unscheduled shut down.

INNOVA has engineered, fabricated and installed gas turbine bypass systems in as diverse places as South America, MENA and Northern Canada.

Bypass Systems for the Toughest Environments

We can create reliable, robust and effective designs to meet any system and compliance requirements, as we take into account such critical areas as:

  • Thermally compensating diverter blade and blade supports
  • Robust diverter toggle drive systems
  • Baffle support systems and silencing baffles
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Engineering Innovation

A traditional problem with diverter dampers are the "hot spots" at the seal land area, which result in issues with personnel safety as well as diverter damper functionality. INNOVA has created a patented seal land system that solves the "hot spot" issue, resulting in a more robust and cost-saving system.

INNOVA uses in-house CFD and 3D modeling, as well as finite element analysis to ensure that all design limits for pressure drop, local velocity limits in critical silencer sections, and non-cyclonic flow requirements are met.

Customizable Diverter Damper Options

We offer comprehensive gas turbine services, starting with an evaluation of your needs, in order to design the most energy and cost efficient bypass system to meet your safety specifications.

Our diverter damper options include:

Fully actuated diverter dampers:

  • To allow gas turbine operation during steam turbine trip
  • Controlled ramp-up of steam cycle during combined cycle start-up
  • Fast switching from combined to simple cycle

Tee box with blanking plates:

  • For one time or infrequent conversion to combined cycle

Tee box with retrofit capability:

  • Pre-designed for conversion into a diverter damper when future conversion to combined cycle may be a possibility

For guaranteed noise compliance, we offer our Higgott-Kane™ Gas Turbine silencing systems in bypass mode by carefully fine-tuning system geometry to reduce turbulence and the noise associated with it.

To find out more about our turbine systems, download the brochure, or contact us for a free quote.

The INNOVA anti-icing system prevents frost and ice formation on inlet components to protect the gas turbine, and prevent pressure drop buildup. Icing can damage blades, filter elements and other vital parts even in temperatures above freezing—ice crystals form at less than 40⁰F and greater than 50% relative humidity.

INNOVA has provided more than 100 anti-icing units to the gas-turbine industry with inlet air temperature rises from 10⁰F to 59⁰F.

Unique Anti-Icing System

The INNOVA anti-icng system is unique in the industry. Our system recovers hot exhaust air from the turbine, warming the air in a heat exchanger then transporting it to the inlet face via a blower. Our straightforward design is adaptable to any gas turbine application, and the simplicity of our system allows for its activation at any time during operation — providing the protection you need where and when you need it.

  1. The blower forces ambient air into offset arrays of circular tubes just inside the exhaust duct shell.
  2. Air flows through the heat exchanger counter to the exhaust gas path, warming as it travels.
  3. The heated air is then transported through ducting to distribution rakes at the filter house inlet, where it flows evenly across its face.
  4. The warm air is introduced upstream from the first stage of the inlet filter, raising the overall temperature of combustion airflow to shift air conditions out of the icing risk range.

Advantages of the INNOVA Anti-Icing System

Virtually zero pressure drop impact on engine performance, ease of maintenance, low parasitic power loads, and non-toxic environmental impact are among the many reasons why our customers select an INNOVA anti-icing system over other systems.

  • Quiet operation with no environmental impact (no glycol disposal)
  • Protection of vital turbine components
  • Utilization of waste heat from exhaust
  • Virtually zero system pressure drop
  • Guaranteed minimum 10°F temperature rise at gas turbine mouth (higher temperature rise is easily achieved)
  • Minimal maintenance
  • Adaptability to any gas turbine model
  • Low noise option
  • Competitive cost
  • Minimal parasitic load
  • Protection of filter elements against frost or ice
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Fast Start

Our unique anti-icing system can provide heat the instant the turbine starts with the addition of electric heating elements. Our advanced heating option can be activated at any time during operation.

Inlet Heating

INNOVA also offers a alternate inlet heating designs that allow for as much as a 59°F temperature rise. This allows for safe operation of the gas turbine under the lowest ambient temperatures. In particular, some gas turbines emit higher NOx levels under low ambient temperatures. Installation of our system to act as an inlet heating solution allows for effective operation of the gas turbine year-round.

Add On for a Total System Solution

At Innova, we've worked to cover your power plant equipment needs right from the start. Along with our anti-icing system, select from our impressive portfolio of OEM-approved, and premier quality products for Gas Turbines.

Our premium product and services line-up provides a one-stop-shopping experience. Contact us today to discuss how INNOVA can work for you.

INNOVA offers custom engineered static or pulse-jet air filtration systems for all sizes of engines and turbines. Our high-quality, low maintenance filter house systems are custom engineered to protect performance and minimize downtime.

Static or Pulse-Jet Air Filtration Designs

Filter houses designed by INNOVA provide worry-free operation. Our engineers understand that each plant has unique requirements based on the location, weather conditions and local industry, as well as compliance targets. Whether in desert locations, rural fields, tropical sites or cold, northern climates, our in-house engineers are here to provide you the solution and options you need.

Static Air Filter Systems
  • Simple and easy to maintain
  • High efficiency, mini-pleat filter packs
  • High efficiency, filter panels
  • Pre-filter pads or pleats for large particle removal
  • Rain and moisture first stage protection
  • Minimization of pressure drop
  • Easy integration of inlet cooling coils
Pulse-Jet Air Filtration Systems
  • Pulse system designed for particulate-heavy environments
  • Advanced filter pleat technology
  • Up-flow or cross-flow options
  • Rain and moisture first stage protection
  • Minimization of pressure drop
  • Easy integration of inlet cooling coils

Add On for a Total Air Filtration System Solution

Let INNOVA look after all your filtration needs. By combining our proprietary anti-icing / inlet heating systems or our intake silencing, we provide comprehensive air filtration solutions guaranteed to suit your specific site.

  • Evaporative cooling
  • Fogging systems
  • Anti-Icing
  • Inlet heating
  • Noise control
  • Ducting
  • Flexible joints
  • Dampers


Our experienced project managers and Quality Assurance supervisors can provide installation of the intake and silencing system, with award-winning attention to safety, on-time and on-budget.

Our premium product and services line-up provides a one-stop-shopping experience. Contact us today to discuss how INNOVA can work for you.

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Tame the high velocity exhaust flow from your gas turbine using a diffuser that is engineered and tested to produce an optimal transition of the gas stream to the exhaust silencer, stack or HRSG. 

Diffusers are located in one of the most violent environments in a gas turbine power plant. The extreme heat, high stresses created by thermal cycling, and high velocity of the exhaust gases are major factors in how the diffuser should be designed and built to perform.

INNOVA is an OEM trusted supplier of diffusers designed to assist in transitioning highly turbulent exhaust gases to either simple exhaust systems or HRSG's. Using our proven internal liner design, our diffusers can structurally and thermally withstand hot, turbulent exhaust gases.

Special considerations go into our designs:

  • CFD and FEA tested
  • Modular construction to facilitate shipment and site erection
  • Consideration for gas turbine compressor bleed pipe interfaces
  • Utilizes special high temperature-resistant materials and an expansion joint at the gas turbine manifold interface
  • Proven operational performance

Regardless of which turbine is on your site, INNOVA has a diffuser design to allow efficient transition into the exhaust silencer, stack or HRSG.

To find out more about how we can engineer a diffuser for you, contact us now for a free quote.

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