• June 15, 2021

The combined heat and power (CHP) project will be executed in two phases. The recently completed first phase was installation and commissioning of the containerised module, producing a nominal electrical power output of 1067kW. The second phase will be to install an exhaust gas heat exchanger to recover the waste heat from hot exhaust gases to generate superheated water at 130°C, which will then be injected into the customer’s process steamer for purification.

This project is an important milestone and a significant progress for Clarke Energy after successful acquisitions and installations of similar projects in Cameroon, with two other installations planned for Q3 2021. It is worthy to note these acquisitions have allowed Clarke Energy to further grow its market share with100% success rate over the last three years.

The quality of service provided by Clarke Energy’s field service team, who promptly intervene for any maintenance requirements, has significantly reduced the factory’s downtime. Highest engine running hours generate substantial cost saving benefits to our customers in Douala, Cameroon thereby scaling down the overall company’s operational costs.

Sahbi Amara, Africa Director, Clarke Energy, commented:

“We are delighted to work together with our customers to unlock the gas to power potentials in the energy hungry industrial hub of Douala. This newly commissioned engine aligns with Clarke Energy’s goal to remain a global leader in providing end to end energy solutions from feasibility studies to implementation backed by a strong after sales local support staff”.  

Theodore Muluh, Sales Manager Africa, Clarke Energy commented:

“This deal is mutually beneficial, and we are happy to have reach this milestone in Cameroon as we crave to expand our business in the Central Africa sub region. Our Presence in Cameroon where we see considerable industrial growth with limited energy infrastructure is a great opportunity for us to contribute in the development of small scale combine heat and power projects which will leverage the utility grid, thereby reducing load shedding.”

About Clarke Energy

Clarke Energy, a KOHLER Group company, is a leader in the engineering, design, installation and maintenance of installations equipped with Jenbacher gas engines. Clarke Energy is INNIO Jenbacher's authorized distributor in 27 countries, employs 1,200 employees across these territories and has over 7GW of INNIO Jenbacher gas engines installed worldwide. For more information,

About INNIO

INNIO is a leading provider of renewable gas, natural gas, and hydrogen-based solutions and services for power generation and gas compression at or near the point of use. With our Jenbacher and Waukesha gas engines, INNIO helps to provide communities, industry and the public access to sustainable, reliable and economical power ranging from 200 kW to 10 MW. We also provide life-cycle support and digital solutions to the more than 53,000 delivered gas engines globally, through our service network in more than 100 countries.

Air Engineering Fields

Textile Air Technology: Weaving

Weave Direct System

• direct conditioning of the warping area
• additional cleaning effect of the loom
• less supply air volume required with better conditions for the process
• substantially lower energy and operating cost
• suitable for any type of loom
• maintaining of required room and loom conditions

Weave Direct System for existing plants

• improved weaving process, reduction of warp yarn breaks by up to 8%
• can eliminate the need for expanding the a/c system when modernizing or adding weaving looms
• less supply air volume required with better conditions for the process
• substantially lower energy and operating cost
• suitable for any type of loom
• maintaining of required room and loom conditions

Conventional a/c-system

• for smaller weaving setups
• optimized air distribution with compact units
• energy saving design
• maintaining of required room conditions

Jacquard Weaving

• special designs with
• conventional a/c-system
• Weave Direct system

Air humidification in the textile industry.

Regulating indoor air humidity visibly increases textile production productivity and is a key factor for quality assurance in the textile industry.

Yarn and textiles are very sensitive to the air quality. They emit moisture into the dry ambient air and lose their elasticity and tear resistance. So if the humidity levels are too low, it can often lead to tearing of the yarn, causing timely and costly disruptions to production. Also, in a controlled humid environment, machine glide quality is increased due to less frictional resistance.

Another significant advantage of optimum air humidity in the textile production is the reduction of electrical discharge ESD) from the materials being processed. Especially when synthetic materials such as perlon or nylon are added, as electrical discharge can compromise a high-quality disruption-free production process. Improved humidity also effectively prevents typical health-related illnesses of employees associated with a dry working environment.

Did you know

• When it comes to cotton products, increasing the relative humidity by 10% (from 60% to 70%RH) raises the material’s elasticity by more than 15% (Source: Institute of Textile Technology, USA, humidity level 60%)

Here is an overview of the advantages of using air humidification in the textile industry:

• Reduces production downtime
• Increases productivity and product quality
• Protects against dangerous electrostatic discharge
• Creates a healthy and pleasant working environment for operational staff
• Reduces operating costs through energy-efficient generation of cooling capacity

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Bio-oil boilers from Bosch are generating future-proof heat

Two new Bosch hot water boilers are integrated into the heating plant from Eidsiva Bioenergi at the Hamar site. The technology of this innovative system is designed for 100% biofuel and therefore supports the future-proof heat supply for the third-largest district heating supplier in Norway.

Over 400 GWh – this is how much energy is generated by Eidsiva Bioenergi AS annually at nine sites in Norway. In addition to district heating, steam and electricity are also supplied for cities and industry. The objective here is to exclusively use existing and regional resources for energy generation that would otherwise go to waste – such as residues from wood processing. This is particularly sustainable since, at the same time, the energy that is used offers a significantly improved carbon footprint when compared to conventional fuels. The Hamar heating plant predominantly uses recovered waste heat from waste as well as bioenergy. This comes from by-products of industrial processing, for example. The bioenergy, in the form of bio-oil, is also used as an energy source for the new Bosch hot water boilers.

The Unimat UT-M boilers are integrated into the district heating grid for the town of Hamar and, together, can provide up to 30,000 kW of heat. In theory, this corresponds to heat supply for approximately 3,500 households. The heat generators from Bosch are primarily used as a back-up for solid fuel boilers and for covering additional load peaks. In particular, the compact design of the hot water boilers allows for quick heating-up and availability in order to provide heat flexibly. In total, the heating plant in Hamar generates up to 120 GWh of district heating for the town of 30,000 inhabitants annually.

Bio-oil boilers from Bosch

• Boiler and burner technology interact effectively
• Flue gas recirculation for low NOx levels
• Innovative cleaning system with compressed air without manual cleaning effort
• Clean, flexible and efficient combustion of biofuel

Industrial boiler experts from Bosch Denmark and their long-standing partner Compab AB from Sweden, along with Reng Consulting AB (consulting the customer on issues of technology and energy), among others, worked on the project for adding the two new heat generators. The common goal was to flexibly integrate different biofuels in a system and to design the technology for this. “Above all, the fully automatic switch between heavy/medium bio-oil and light bio-oil from three fuel tanks placed high demands on the technology used,” reports Peder Lyckerius from Compab. Boiler and burner technology interact here effectively and, using combustion-optimising control systems, the fuels can be efficiently converted into heat.

Even though bio-oil as a fuel has a high potential for environmentally friendly energy generation, this may vary due to its characteristics and may cause operational fluctuations. To use it, you require additional technological components in order to perfectly balance the efficiency and the service life of the boiler. For example, when compared to natural gas, bio-oil occasionally burns at higher temperatures. With the installed flue gas recirculation, the prescribed NOx emissions can be reliably complied with.