A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbon capture from combined heat and power plants – Impact on the supply and cost of electricity and district heating in cities
https://orcid.org/0000-0002-6710-2728
https://orcid.org/0000-0002-0947-1883
Highlights Integration of carbon capture in city electricity and district heating system. Combined heat and power plants retrofitted with MEA and HPC CO2 capture processes. Energy system optimization model with detailed carbon capture representation. With heat recovery, both processes are efficiently integrated in the heat sector. Low impact on marginal costs of electricity and district heating from CO2 capture.
Abstract The capture and storage of biogenic CO2 emissions from large point sources, such as biomass-combusting combined heat and power (CHP) plants, can contribute to climate change mitigation and provide carbon-negative electricity while supplying district heating in urban areas. This work investigates the impact of retrofitting CO2 capture processes to CHP plants in a city energy system context. An energy system optimization model is applied to a case study of the city Västerås, Sweden, with scenarios involving two existing CHP plants in the city, retrofitted with either a heat-driven (MEA) or an electricity-driven (HPC) carbon capture process. The results show that the CHP plants might be retrofitted with either option without significantly impacting the district heating system operation or the marginal costs of electricity and district heating in the city. The MEA process mainly causes a reduction in district heating output (up to 30% decrease on an annual basis), which can be offset by heat recovery from the capture unit. The electrified HPC process does not impact the CHP plant steam cycle but implies increased import of electricity to the city (up to 44% increase annually) compared to a reference scenario.
Graphical abstract Display Omitted
Carbon capture from combined heat and power plants – Impact on the supply and cost of electricity and district heating in cities
https://orcid.org/0000-0002-6710-2728
https://orcid.org/0000-0002-0947-1883
Highlights Integration of carbon capture in city electricity and district heating system. Combined heat and power plants retrofitted with MEA and HPC CO2 capture processes. Energy system optimization model with detailed carbon capture representation. With heat recovery, both processes are efficiently integrated in the heat sector. Low impact on marginal costs of electricity and district heating from CO2 capture.
Abstract The capture and storage of biogenic CO2 emissions from large point sources, such as biomass-combusting combined heat and power (CHP) plants, can contribute to climate change mitigation and provide carbon-negative electricity while supplying district heating in urban areas. This work investigates the impact of retrofitting CO2 capture processes to CHP plants in a city energy system context. An energy system optimization model is applied to a case study of the city Västerås, Sweden, with scenarios involving two existing CHP plants in the city, retrofitted with either a heat-driven (MEA) or an electricity-driven (HPC) carbon capture process. The results show that the CHP plants might be retrofitted with either option without significantly impacting the district heating system operation or the marginal costs of electricity and district heating in the city. The MEA process mainly causes a reduction in district heating output (up to 30% decrease on an annual basis), which can be offset by heat recovery from the capture unit. The electrified HPC process does not impact the CHP plant steam cycle but implies increased import of electricity to the city (up to 44% increase annually) compared to a reference scenario.
Graphical abstract Display Omitted
Carbon capture from combined heat and power plants – Impact on the supply and cost of electricity and district heating in cities
https://orcid.org/0000-0002-6710-2728
https://orcid.org/0000-0002-0947-1883
Highlights Integration of carbon capture in city electricity and district heating system. Combined heat and power plants retrofitted with MEA and HPC CO2 capture processes. Energy system optimization model with detailed carbon capture representation. With heat recovery, both processes are efficiently integrated in the heat sector. Low impact on marginal costs of electricity and district heating from CO2 capture.
Abstract The capture and storage of biogenic CO2 emissions from large point sources, such as biomass-combusting combined heat and power (CHP) plants, can contribute to climate change mitigation and provide carbon-negative electricity while supplying district heating in urban areas. This work investigates the impact of retrofitting CO2 capture processes to CHP plants in a city energy system context. An energy system optimization model is applied to a case study of the city Västerås, Sweden, with scenarios involving two existing CHP plants in the city, retrofitted with either a heat-driven (MEA) or an electricity-driven (HPC) carbon capture process. The results show that the CHP plants might be retrofitted with either option without significantly impacting the district heating system operation or the marginal costs of electricity and district heating in the city. The MEA process mainly causes a reduction in district heating output (up to 30% decrease on an annual basis), which can be offset by heat recovery from the capture unit. The electrified HPC process does not impact the CHP plant steam cycle but implies increased import of electricity to the city (up to 44% increase annually) compared to a reference scenario.
Graphical abstract Display Omitted
Carbon capture from combined heat and power plants – Impact on the supply and cost of electricity and district heating in cities
Beiron, Johanna (author) / Normann, Fredrik (author) / Johnsson, Filip (author)
2023-09-01
Article (Journal)
Electronic Resource
English