Aalborg Energie Technik (AET) is to partner with MAV Elektrik to achieve cleaner air and prevent water and soil contamination, as well as creating an additional source of revenue from chicken litter - previously seen as a waste product.
At the high efficiency power plant, called MAV Elektrik Üretim Sanayi ve Ticaret A.S. (MAV), which is located in the agricultural Bolu District in northwest Turkey, the power from the plant will be generated from waste. There is, at present. no waste management system at the facility.
MAV, which is a subsidiary of Gülsan Holding, has an agreement with local farmers to collect the chicken litter and transport it to the site where it is burned and converted to green power. The investment is part of Gülsan’s strategy to grow and diversify into power generation.
MAV project
A 3D model of the MAV project in Bolu, Turkey.
The Turkish Government offers incentives for green energy and encourages chicken farmers not to dispose of chicken litter. The authorities have a variety of environmental and public health concerns about the uncontrolled disposal of chicken litter, excess use of fertiliser, soil and water contamination, spread of viral/bacterial chicken diseases, risk to human health and odour from current disposal methods.
The plant will use around 250,000 tonnes of biomass annually, which would otherwise be disposed of, and produce 35 MW of green electricity for export to the grid instead. The burning of the chicken litter will also produce around 35,000 tonnes of ash per year, which will be used as a bacteria-free and nutrient-rich fertiliser.
Chicken is the main meat-based source of protein in Turkey and the industry is growing rapidly. The large and concentrated number of farms in the area around the Bolu District where the plant is based has created a growing waste problem. The waste from the chicken breeding cycle needs to be removed from the bird raising sheds. This bedding waste is typically a mixture of rice husk and wood chips, mixed with the chicken manure and this will provide the fuel for the new plant.
AET is responsible for engineering, procurement and construction of the fuel handling system, AET Combustion System, AET Biomass Boiler, AET SNCR DeNOx System, boiler house, flue gas treatment, steam turbine, air cooled condenser, mechanical and electrical balance of plant and the overall control system. MAV will supply civil works and buildings.
The AET Biomass Boiler will burn chicken litter and will be designed for a fuel heat input of 99.5 MWt and a boiler efficiency of 92%. The AET Combustion System and AET Biomass Boiler will be optimised for the chicken litter. With high chloride and high alkali levels in the chicken litter, all necessary precautions are taken to minimise slagging, fouling and corrosion to have a reliable and continuous operation of the plant. The AET Biomass Boiler is therefore designed to run with a minimal refractory period, which also reduces the cost of maintenance considerably and at the same time increases availability.
The plant is designed with redundancy in several areas to ensure a high availability and the steam parameters and superheater materials are chosen with a long lifetime in mind.
The combination of the AET Combustion System and AET Biomass Boiler ensures low emissions, which comply with the European limits. The plant is designed in accordance with WID to guarantee the high fuel flexibility in the future.
The in-house power consumption for the power plant is only approximately 2.5% of the fuel heat input, and this increases the net power output. This enables MAV to produce more power for export to the grid.
The plant is planned to begin operations in the second half of 2021.
Yusuf Özgül, Project Director, Gülsan said: “We are pleased to announce that AET will be the EPC supplier for MAV. AET have the technology competence and know-how for similar sized plants and their plants have more than 25 years’ operational experience with handling and combustion of chicken litter.”
Erik Flemming Hansen, Sales Director, AET said: “It’s a great step for AET to move in to the Turkish market, and AET could not have chosen a better partner than Gülsan Holding to make this move with. It has been a pleasure to develop the MAV project together with the MAV Gülsan team - from the first day there has been a constructive cooperation in a very positive spirit.”
“At AET we are very happy to be part of expanding the green energy portfolio for Gülsan Holding. The 35 MW produced at MAV will supply green energy in Turkey to approximately 100,000 households, equivalent to a reduction of around 200,000 tonnes CO2 per year, if substituting a coal fired plant,” said CEO of AET Lars Kristensen.
AET’s employees have previously supplied chicken litter-fired plants to the UK's FibroPower/Eye Power Station (the world’s first chicken litter-fired plant) and the FibroGen/Glanford Power Station.
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