Welcome to ACTE S.A. Website
ACTE, founded in Belgium in 1998, ACTE is specialized in compact, primary surface, counter flow gas-to-gas heat recuperators (heat exchangers) and offers solutions to heat transfer needs where both fluids are gases. Amongst the various applications, ACTE supplies its proven compact heat exchangers and technology to :
- gas turbine manufacturers, and offers attractive solutions for their heat recuperation requirements.
- air cooling devices
- heat recuperation and heat recovery unit, where the exhaust elevated temperature or high temperature gases are used to preheat fresh ambient or compressed air, or other gaseous fluids, that will flow throughout a thermodynamic cycle (Brayton cycles) to generate additional power or reduce fuel consumption.
- vapour to air heat exchangers
Patented coiling process
ACTE’s patented coiling process offers a reliable solution for a wide range of heat/electrical applications. Its heat exchangers are suitable for power outputs ranging from a few kW to several MW (100 Watts, 1kW, 1MW, up to 20MW).
Stainless-steel heat exchangers
ACTE’s heat exchangers are typically supplied in AISI 321-compliant, 0.3mm thick stainless steel; however, other materials are available on request (Inconel types, included Inco625, 20/25Nb, HR120, Haynes materials). The core of the recuperator is produced by a fully automatic laser welding production line. This simple process is robust and enables low-cost and high-volume production.
Prior to laser welding, stainless steel sheets are corrugated in a continuous rotative deep drawing process that increase the heat transfer primary surface.
ACTE’s standard stainless-steel heat exchangers operate in the following environments :
- The low stress level in the recuperator enables the use of stainless steel with exhaust temperatures of up to 650°C
- Pressures of up to 20bar
Primary surface, counter-flow heat exchangers
ACTE’s primary surface, counter-flow heat exchangers are highly effective and provide high heat recovery with 90% effectiveness, improving the efficiency of engines and reducing fuel consumption.
Highly effective, compact and robust heat exchangers
ACTE’s heat exchangers have the following features:
- Compact: the small-millimetric size of the gas passages (small hydraulic diameter) results in a lighter and smaller solution
- Annular shape: other shapes are available on request
- Robust and reliable: fouling resistant, thermal shock resistant (sudden load variation) and extended fatigue life time, creep optimized design.
- Flexible design: flexible movement of the surface, allowing the recuperator to breathe during sudden thermal load variation (thermal shocks), where alternative solution fails due to the important thermal inertia difference of the components, resulting in important stress level.
Custom-designed heat exchangers
ACTE’s in-house conception (including CFD models), sizing and design capabilities enable it to meet specific customer requirements and to produce custom-designed heat exchangers.
Global heat exchangers
ACTE is located near Brussels, Belgium, in the heart of Europe. Its clients and suppliers are located in the Americas, Asia and Europe.
ACTE was founded by a university professor of thermodynamics. Today, ACTE leverages the legacy of its past and maintains close contacts with leading academics in the fields of thermodynamics and heat exchangers.
Data’s required for quotation
- Flow rates and heat loads
- Fluids Temperatures (inlet and/or desired outlets)
- Physical properties of the fluids in question
- Maximum operating pressure
- Maximum allowable pressure drop on each side
- Desired lifetime
- Desired number of starts-up / shut down, and temperature transient profile.
