Feature : Distri ct energy located in wanroij, North Brabant, Aben BV is a family-run farm business consisting of modern dairy and pig production on several locations. In 2003, the brothers Jan and Toine Aben founded Aben Recycling BV, setting up a biogas plant with a 230 kW Deutz gen-set adjacent to one of the three pig production units in 2004. This supplied green electricity to the grid and the heat was used for the pigsties and to sanitise unused manure for export. Since then the biogas plant has, through multiple extensions, formed a sizeable plant. Currently it has 5.8 MW of installed capacity supplying 35 GWh of electricity per annum. The biogas is used in five gen-sets: the original Deutz, three Jenbacher 420s and a Jenbacher 320. The plant uses all the 12 Bioenergy Internat ional No 81, 5-2015 – A key safety feature is the exhaust by-pass valve which eliminates the risk of any exhaust back-flow into the gas engine should the ORC not be functioning, explained Marcel Borkent, Strategic Business Developer, Triogen. residual heat, part of it as steam, for various applications. Apart from space heating around the farm itself, heat is piped 2 km to a neighbouring poultry farm. Steam is used for pressure sterilisation of The Baltics and France, hot Renewa energy markets Finnish boiler designer and manufacturer Renewa Oy has announced it is to supply three 25 MW superheated steam heat recovery boilers to Lithuanian energy plant builder and operator UAB Axis Technologies. The delivery is for the Väo 75 MW biomass fuelled combined heat and power (CHP) plant project in Tallinn, Lithuania. The scope of supply includes engineering, manufacturing and delivery of the three 25 MW boilers during 2015. Axis Technologies, a subsidiary of Axis Industries Group, is responsible for the balance of plant as the EPC contractor. The boilers will use woodchips and peat as fuel. The order value has not been disclosed. – Our boiler know-how and cost efficient workshop manufacturing supports Axis in its role as the main contractor. We have worked with Axis for several years and this is an interesting, very suitable project for us, commented Kari Liukko, Sales Director, Renewa Oy, referring to commissioned installations for Axis in Alytus, Lithuania (2012) and in Riga, Latvia (2013). In a separate statement Renewa Oy has announced it will supply a 26.5 MWth biomass-fired hot water boiler plant to Cofely Réseaux/Plaine Commune Energie for district heat production in Saint Denis district, Paris, France. Cofely Réseaux is a business-to-business energy services arm of ENGIE, a leading global energy major. The scope of supply includes engineering, manufacturing and delivery of the 26.5 MWth boiler plant including the building. It is the fifth order to France since 2012. According to Renewa the project has set high requirements for the delivery as it is sited in a highly populated urban area and is very business critical to Plaine Commune Energie. – Through this new biomass project Plaine Commune Energie brings a real added value to the territory of Saint Denis. Saint Denis is expanding and has already 54 km of heat networks, which is about 40 000 housing equivalents. Renewa offers an innovative solution for combustion of wood-based fuel with its fluidised bed technology. This partnership is a continuation of the Plaine Commune Energy commitments on renewable energy, said Damien Térouanne, Managing Director of Cofely Réseaux. The project execution has already begun and the industrial use of the boiler is scheduled for the first quarter 2016. The value of the order has not been disclosed. Text: Alan Sherrard BI81/4970/AS Maximising heat from biogas power the digestate. Although the vast majority of the heat is used onsite for a belt-dryer installation used to produce animal feed from materials such as wet potato peel. A 160 kWe Triogen Organic Rankine Cycle (ORC) unit uses exhaust heat from the gen-sets to produce electricity while it cools from an ingoing temperature of >350 °C to around 90 °C for the belt-dryer. The residual low-temperature heat from the dryer is used in a number of mobile container dryers for materials such as woodchips. Text & photos: Alan Sherrard BI81/4944/AS In the Netherlands, brothers Jan and Toine Aben run a family farm and recycling business. Over the years the biogas combined heat and power plant has grown in capacity where heat has become a central part of its operations. Kari Liukko, Sales Director, Renewa Oy (photo courtesy Renewa)
Bioenergy no 5 September 2015
To see the actual publication please follow the link above