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Industrial Energy Systems

Engineering.
Systems.
Solutions.

We develop, integrate and deliver complex energy systems – efficient, reliable and future-proof.

6Service areas
25+Years of experience
CEStandards & documentation
Product enquiryDirect product enquiry

Design, construction, installation and operation.

Our engineers and partners support you with technical challenges around your plant – from standard cases to special solutions.

Basic & Detail Engineering

Studies, calculations, basic design and detailed construction for manufacturing, installation and safe operation – including P&IDs, measuring point and consumer lists.

Construction, Assembly & Commissioning

Build and test in our workshop, on-site assembly, integration into existing systems, and technical commissioning.

Service, Maintenance & Operation

Operations management, maintenance, troubleshooting, analysis, optimisation and upgrades to improve existing systems.

Engineering, workshop and commissioning in one system.

Our strength lies in combining technical design, practical implementation, documentation and operational experience.

Special solutions

Custom-built rather than off-the-shelf.

Standards expertise

CE, PED, ATEX, HAZOP and FAT.

Own workshop

Prototyping, assembly and testing.

Service

Commissioning, maintenance and optimisation.

Technical solutions for energy, drives and operational safety.

Each service area has its own content page with technical focus, use cases and a direct enquiry function.

DHKW

DHKWs

Engineering and delivery of industrial energy systems.

GAS

Direct Drives, Diesel / Gas

Mechanical drives for blowers, compressors and other equipment.

Fuel Cleaning

Modular side-stream systems for diesel and storage tanks.

Hydrogen

Integration, BOP, gas handling and standards compliance.

NEA

Special Emergency Power

Custom backup power systems for demanding applications.

About us

Team, experience, workshop, quality and partner network.

Product enquiry

Request a fuel cleaning system directly via enquiry basket.

From enquiry to implementation.

For project-related services, the process remains consultation- and engineering-led. For fuel cleaning systems, the shop / order process can also be used.

01

Enquiry

Technical key data, objectives, medium, installation site and interfaces.

02

Design

Engineering, component selection, scope of supply and commercial clarification.

03

Manufacturing

Assembly, testing, documentation and shipping preparation.

04

Commissioning

Installation, functional testing, handover and optional service.

DHKWs

DHKW plants and industrial energy systems.

Concept design, engineering and technical implementation of DHKW plants and energy-efficient system solutions for industrial applications.

Generating compressed air and heat with high efficiency.

A DHKW replaces electrically driven compressed-air generation with a directly driven screw compressor powered by a gas, biogas, or prospectively hydrogen-capable engine. The resulting waste heat is also put to productive use.

Basic Concept

A compact, turbocharged gas engine directly drives a screw compressor. This generates compressed air mechanically from gas, biogas, or optionally H₂-ready fuel, rather than electrically.

Compressed air generated directly from mechanical engine power
Waste heat used from engine cooling, exhaust and compressed-air cooling
Reduces electrical peak loads and power costs

Typical Example

A compact, turbocharged natural gas engine built for maximum efficiency and power output (e.g. 2G Energy 406 natural gas, 248 kWmech) directly drives a screw compressor (e.g. Aerzener VMX). This generates, for example, 40 m³/min of compressed air at 8 bar(g). At the same time, usable heat is available for heating or process heat.

Direct drive instead of electrical compressor power
Example design: 40 m³/min of compressed air at 8 bar(g)
Payback in practice often achieved in under 2 years

How drive, compressor and heat use work together.

Using a typical design as an example, the following diagram shows how a single fuel input simultaneously produces compressed air and multiple stages of usable heat.

Energy flow diagram of a DHKW: gas engine directly drives a screw compressor, heat is recovered via the HT and LT circuits and an exhaust heat exchanger

Example energy flow overview: the gas engine mechanically drives the compressor to generate compressed air, while heat from engine cooling, compressor oil, exhaust gas and compressed-air cooling is recovered across several heat exchanger stages and supplied to the customer at a usable temperature level.

Want to cut costs and CO₂ in your compressed-air generation – all the way to carbon neutrality?

Then generate compressed air from hydrogen, natural gas or biogas instead of electricity – with our DHKW. And the heat comes free of charge.

Where does a DHKW work particularly well?

The economic benefit is greatest where compressed-air demand is high, operating hours are long, and there is a significant gap between electricity and gas prices.

Production from two shifts upward

Particularly attractive where compressed-air and heat demand is consistently or regularly high.

Favourable gas price

Advantageous for companies that are already large-scale natural gas consumers or can use alternative fuels.

High electricity price

With high operating hours, a DHKW can significantly reduce operating costs compared with electrical compressed-air generation.

Planned renewal

Ideal when replacing an old compressor or expanding an existing compressed-air station.

Compressed air is one of the most expensive energy carriers in operation.

This is exactly where the DHKW comes in: electrical compressor output is reduced or replaced, while usable heat is generated at the same time. Several savings levers take effect simultaneously.

Less electricity for compressed air. More usable energy from the fuel input.

In conventional compressed-air generation, electrical energy powers the compressors and much of the resulting heat goes unused. A DHKW generates compressed air mechanically via a gas or biogas engine and also makes the waste heat usable.

Reduced electrical compressor output
Compressed air and heat from one system
90°C Usable temperature level achievable
24/7 Especially strong with high operating hours

Conventional compressed-air station

High electricity demand from compressors
Heat is often only partially used
Electricity price spikes directly affect operating costs
Expansion often requires higher grid connection capacity

DHKW principle

Compressed air generated directly from mechanical engine power
Waste heat can be used for heating or process heat
Electricity consumption for compressed air can be significantly reduced
Ideal for high compressed-air and heat demand

1. Savings through electricity substitution

The biggest lever is reducing electrical compressor work. The higher the electricity price, operating hours and compressed-air demand, the stronger the economic case for a DHKW.

less electrical work for compressed air
lower power peaks possible
relief for electrical infrastructure

2. Added value through heat recovery

Heat from the engine, exhaust and compressed-air cooling can be put to use. This turns compressed-air generation into a combined energy system.

supports heating and process heat
better overall energy utilisation
high efficiency with matching heat demand

3. Economical with long operating hours

A DHKW is especially worthwhile for multi-shift operation, continuous base load, or planned expansions of compressed-air supply.

production with regular compressed-air demand
base-load operation especially attractive
replacing or supplementing existing compressors

4. Future-ready fuels

Besides natural gas, depending on the engine concept, biogas or, prospectively, hydrogen-capable solutions can also play a role.

natural gas, biogas or H₂-ready concepts
CO₂ reduction depending on fuel
compatible with future energy strategies

The key point: the DHKW must match the load profile.

We assess compressed-air demand, heat demand, operating hours, energy prices and installation conditions, and determine whether a DHKW makes technical and economic sense.

Realised and possible DHKW configurations.

The variants build on the existing project logic: different compressed-air volumes, fixed speed, variable delivery volume and containerised outdoor installation.

TGA240 DHKW

Concept for high compressed-air output, e.g. 40 m³/min, with intake control.

TGA160 DHKW

Fixed-speed design for high efficiency and a robust base load.

VTGA160 DHKW

Variable delivery volume via speed control for more flexible load profiles.

Container-DHKW

Suitable for outdoor installation and modular integration on site.

From analysis to operation.

For a DHKW, early technical assessment is decisive: compressed-air profile, heat profile, operating hours, fuel costs, installation site and integration with existing systems.

01

Analysis

Compressed-air demand, heat demand, run times, energy prices and existing infrastructure.

02

Concept

Engine, compressor, heat utilisation, controls, installation site and interfaces.

03

Implementation

Engineering, manufacturing, assembly, integration and commissioning.

04

Operation

Support, maintenance, optimisation and technical assistance during ongoing operation.

Example 3D installation layout of a DHKW in a plant room, with all relevant interfaces and connections marked

Example installation planning: this shows how a DHKW, including exhaust routing, silencer and connections, is technically integrated into the existing plant room – including all relevant interfaces marked for assembly and commissioning.

Certified quality

WB Engineering is certified by TÜV SÜD as a specialist company according to § 62 AwSV (WHG). This qualification supports legally compliant work on systems involving water-polluting substances and provides additional safety, quality and legal certainty for industrial, energy and plant engineering projects.

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