A techno-economic assessment of biomass fuelled trigeneration system integrated with organic Rankine cycle

Ye Huang, yaodong Wang, Sina Rezvani, David McIlveen-Wright, Mark Anderson, JD Mondol, Aggelos Zacharopoulos, Neil Hewitt

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Biomass fuelled trigeneration is the term given to the system which is the on-site generation of electricity, heat and cooling simultaneously, using biomass as the fuel source. As a form of the renewable energy sources biomass is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO2 neutral. Biomass, therefore, would be a promising option for the future to contribute both to the reduction of greenhouse gases and to the solution of replacing fossil fuels in power plants. For a wide range of commercial buildings, biomass trigeneration offers aneconomical solution of providing power, heat and cooling which is more environmentally friendly than conventional methods.This work focuses on the modelling, simulation and techno-economic analysis of small scale biomass trigeneration applications. The Organic Rankine Cycle (ORC) integrated with conventional combustion provides electricity for building use. The waste heat recovered from the ORC system and exhaust gases is used to supply hot water to space heating and excess heat is also used to drive an absorption cooling system. In order to use energy resources most efficiently, the proposed process is modelled and simulated using the ECLIPSE process simulation package. Based on the results achieved, the key technical and environmental issues have been examined. The study also investigates the impact of different biomass feedstock on the performance of trigeneration plant, biomass ash content ranges from 0.57 to 14.26% ash and a range of moisture content 10.6e33.51%. The calorific value across the biomass sources ranges between 16.56 and 17.97 MJ/kg daf. Finally, an economic evaluation of the system is performed alongwith sensitivity analyses such as capital investments, plant load factors and fuel costs. The results show that the maximum efficiencies and the best breakeven electricity selling price for the cases considered in this study are as follows: 11.1% and 221 £/MWh for power only, 85.0% and 87 £/MWh for combined heat and power and 71.7% and 103 £/kWh for trigeneration respectively.
LanguageEnglish
Pages325-331
Number of pages7
JournalApplied Thermal Engineering
Volume53
Issue number2
DOIs
Publication statusPublished - May 2013

Fingerprint

Rankine cycle
Biomass
Economics
Ashes
Electricity
Trigeneration plant
Absorption cooling
Cooling
Calorific value
Space heating
Waste heat
Economic analysis
Energy resources
Exhaust gases
Cooling systems
Fossil fuels
Greenhouse gases
Feedstocks
Sales
Power plants

Keywords

  • Trigeneration
  • Computational simulation
  • Biomass
  • Organic Rankine cycle
  • Techno-economic analyses

Cite this

Huang, Ye ; Wang, yaodong ; Rezvani, Sina ; McIlveen-Wright, David ; Anderson, Mark ; Mondol, JD ; Zacharopoulos, Aggelos ; Hewitt, Neil. / A techno-economic assessment of biomass fuelled trigeneration system integrated with organic Rankine cycle. 2013 ; Vol. 53, No. 2. pp. 325-331.
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abstract = "Biomass fuelled trigeneration is the term given to the system which is the on-site generation of electricity, heat and cooling simultaneously, using biomass as the fuel source. As a form of the renewable energy sources biomass is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO2 neutral. Biomass, therefore, would be a promising option for the future to contribute both to the reduction of greenhouse gases and to the solution of replacing fossil fuels in power plants. For a wide range of commercial buildings, biomass trigeneration offers aneconomical solution of providing power, heat and cooling which is more environmentally friendly than conventional methods.This work focuses on the modelling, simulation and techno-economic analysis of small scale biomass trigeneration applications. The Organic Rankine Cycle (ORC) integrated with conventional combustion provides electricity for building use. The waste heat recovered from the ORC system and exhaust gases is used to supply hot water to space heating and excess heat is also used to drive an absorption cooling system. In order to use energy resources most efficiently, the proposed process is modelled and simulated using the ECLIPSE process simulation package. Based on the results achieved, the key technical and environmental issues have been examined. The study also investigates the impact of different biomass feedstock on the performance of trigeneration plant, biomass ash content ranges from 0.57 to 14.26{\%} ash and a range of moisture content 10.6e33.51{\%}. The calorific value across the biomass sources ranges between 16.56 and 17.97 MJ/kg daf. Finally, an economic evaluation of the system is performed alongwith sensitivity analyses such as capital investments, plant load factors and fuel costs. The results show that the maximum efficiencies and the best breakeven electricity selling price for the cases considered in this study are as follows: 11.1{\%} and 221 £/MWh for power only, 85.0{\%} and 87 £/MWh for combined heat and power and 71.7{\%} and 103 £/kWh for trigeneration respectively.",
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A techno-economic assessment of biomass fuelled trigeneration system integrated with organic Rankine cycle. / Huang, Ye; Wang, yaodong; Rezvani, Sina; McIlveen-Wright, David; Anderson, Mark; Mondol, JD; Zacharopoulos, Aggelos; Hewitt, Neil.

Vol. 53, No. 2, 05.2013, p. 325-331.

Research output: Contribution to journalArticle

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T1 - A techno-economic assessment of biomass fuelled trigeneration system integrated with organic Rankine cycle

AU - Huang, Ye

AU - Wang, yaodong

AU - Rezvani, Sina

AU - McIlveen-Wright, David

AU - Anderson, Mark

AU - Mondol, JD

AU - Zacharopoulos, Aggelos

AU - Hewitt, Neil

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AB - Biomass fuelled trigeneration is the term given to the system which is the on-site generation of electricity, heat and cooling simultaneously, using biomass as the fuel source. As a form of the renewable energy sources biomass is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO2 neutral. Biomass, therefore, would be a promising option for the future to contribute both to the reduction of greenhouse gases and to the solution of replacing fossil fuels in power plants. For a wide range of commercial buildings, biomass trigeneration offers aneconomical solution of providing power, heat and cooling which is more environmentally friendly than conventional methods.This work focuses on the modelling, simulation and techno-economic analysis of small scale biomass trigeneration applications. The Organic Rankine Cycle (ORC) integrated with conventional combustion provides electricity for building use. The waste heat recovered from the ORC system and exhaust gases is used to supply hot water to space heating and excess heat is also used to drive an absorption cooling system. In order to use energy resources most efficiently, the proposed process is modelled and simulated using the ECLIPSE process simulation package. Based on the results achieved, the key technical and environmental issues have been examined. The study also investigates the impact of different biomass feedstock on the performance of trigeneration plant, biomass ash content ranges from 0.57 to 14.26% ash and a range of moisture content 10.6e33.51%. The calorific value across the biomass sources ranges between 16.56 and 17.97 MJ/kg daf. Finally, an economic evaluation of the system is performed alongwith sensitivity analyses such as capital investments, plant load factors and fuel costs. The results show that the maximum efficiencies and the best breakeven electricity selling price for the cases considered in this study are as follows: 11.1% and 221 £/MWh for power only, 85.0% and 87 £/MWh for combined heat and power and 71.7% and 103 £/kWh for trigeneration respectively.

KW - Trigeneration

KW - Computational simulation

KW - Biomass

KW - Organic Rankine cycle

KW - Techno-economic analyses

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