Project: Electricity generation from low-value heat sources
The goal of the project is to generate electricity / energy at competitive costs from heat streams generally considered to be of low value, including industrial waste heat and geothermal heat in the range 60-80 or even up to 90 degree Celsius (oC). _x000D_
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Ps in the project and general background:_x000D_
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1. Climeon: During the past two years, Climeon has developed, with support from the Swedish Energy Agency and the KTH University in Stockholm, a novel thermodynamic cycle based on CO2 as working gas. The Climeon C3 process is enhanced by the reversible absorption of CO2 in an alkaline liquid such as used in the field of carbon capture. Through chemical absorption of CO2, a high pressure difference between the hot and the cold side of the process can be realized. Further, the CO2 gas can be expanded through the turbine to very low temperatures, such as minus 60 oC. This increases the efficiency of the power generation process and enables co-generation of cold, another valuable product. The C3 process was designed for at least 90 oC as heat source. Given the fact that many heat streams are available in the range 60-90 oC, there is a need to utilize these streams as well for renewable energy generation._x000D_
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2. Alfa Laval is widely known as supplier of heat exchangers and separation technology. These products are essential for the C3 process and the intended optimization of the process to utilize lower temperatures than 90 oC._x000D_
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3. IF Technology is a consultancy company specialised a.o. in geothermal energy generation. IF's expertise is essential to design a process where all streams (incoming/outgoing heat and incoming/outgoing cooling streams) are utilized in the optimum way. In many areas, geothermal heat is practically available at temperatures clearly below 90 oC. Higher temperatures would require deep drilling which is expensive and often not possible. _x000D_
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4. ECN (Energy Research Centre of the Netherlands) is a R&D institute covering most energy related aspects. ECN's expertise will contribute to the modelling and adaptation of the C3 process to utilize low temperatures, and also to the optimal integration of the C3 process to specific cases initially in the Netherlands (see demonstration phase). Further information on all Ps is provided in an attachment._x000D_
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The consortium has divided the tasks into five work packages (WP), including a) management, b) chemistry, c) engineering, d) technical market requirements and e) demonstration. _x000D_
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The CO challenge in this project is: the low Carnot efficiency dictated by the temperature difference between the hot and the cold side of the process (60-80 oC vs. 10-20 oC) means that losses in the process have to be minimised in order to generate electricity at competitive costs. This will be achieved by utilizing all streams (e.g. for district heating and energy storage), by optimizing the chemistry and by using advanced equipment such as optimized turbines, heat exchangers and separation devices. _x000D_
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In the final phase of the project, a demonstrator unit will be operated powered by a geothermal or waste heat source of 60-80 oC. The current plan is to install the demonstrator either at an industrial site which expressed interest (paper factory) or at Amsterdam/Schiphol airport where there is a demand for electricity and comfort cooling, and geothermal energy could be available at ca. 70 oC._x000D_
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Acronym
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Heat-to-Power
(Reference Number: 8097)
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Duration
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01/10/2013 - 31/03/2016
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Project Topic
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60-80 oC heat (geothermal and industrial waste heat) is used to generate electricity using an improved version of the patented Climeon C3 process. The project includes optimisation of chemistry and engineering, and requires cooperation between geothermal and power generation technology.
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Network
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Eurostars
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Call
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Eurostars Cut-Off 10
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Project partner
