Feasibility analysis of different cogeneration systems for a paper mill to improve its energy efficiency

Imran Shabbir, Mojtaba Mirzaeian

Research output: Contribution to journalArticle

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Abstract

Cogeneration is considered as one of the promising energy efficient techniques for producing electricity and useful thermal energy from a single fuel source. This paper describes a feasibility study of the implementation of different cogeneration options to a paper mill to evaluate their energy saving potentials and economic benefits. The investigated systems in this paper are gas turbine, steam turbine and combined cycle cogeneration options evaluated and compared based on energy utilisation factor and Annualised Life Cycle Cost (ALCC) analysis. The results of energy analysis show that all Combined Heat and Power (CHP) systems satisfy the thermal energy needs of the mill while the combined cycle cogeneration option generates the highest amount of electric energy equal to 10.91 MW. The gas turbine cogeneration system is shown as the most advantageous system from overall energy point of view with the highest energy utilisation factor of 78% meeting the heat and electric requirements of the mill and exporting 21,329 MWh of additional electricity to the grid. Economic feasibility results also show that an overall saving of 5.12 million US$ can be achieved by implementing the gas turbine cogeneration system to the mill making it as the best cogeneration option with the least overall ALCC of 1.34 million US$ and the maximum percentage of CO2 emission reduction (68%) when compared with the other options.
Original languageEnglish
Pages (from-to)16535–16548
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume41
Issue number37
Early online date6 Jun 2016
DOIs
Publication statusPublished - 5 Oct 2016

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feasibility analysis
cogeneration
Gas turbines
Energy efficiency
Thermal energy
Life cycle
Energy utilization
Electricity
gas turbines
Economics
life cycle costs
Steam turbines
electricity
energy
Costs
thermal energy
Energy conservation
economics
cost analysis
steam turbines

Keywords

  • Paper mill
  • Thermoeconomics
  • Annualised life cycle cost analysis
  • Energy utilisation factor
  • Combined heat and power

Cite this

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title = "Feasibility analysis of different cogeneration systems for a paper mill to improve its energy efficiency",
abstract = "Cogeneration is considered as one of the promising energy efficient techniques for producing electricity and useful thermal energy from a single fuel source. This paper describes a feasibility study of the implementation of different cogeneration options to a paper mill to evaluate their energy saving potentials and economic benefits. The investigated systems in this paper are gas turbine, steam turbine and combined cycle cogeneration options evaluated and compared based on energy utilisation factor and Annualised Life Cycle Cost (ALCC) analysis. The results of energy analysis show that all Combined Heat and Power (CHP) systems satisfy the thermal energy needs of the mill while the combined cycle cogeneration option generates the highest amount of electric energy equal to 10.91 MW. The gas turbine cogeneration system is shown as the most advantageous system from overall energy point of view with the highest energy utilisation factor of 78{\%} meeting the heat and electric requirements of the mill and exporting 21,329 MWh of additional electricity to the grid. Economic feasibility results also show that an overall saving of 5.12 million US$ can be achieved by implementing the gas turbine cogeneration system to the mill making it as the best cogeneration option with the least overall ALCC of 1.34 million US$ and the maximum percentage of CO2 emission reduction (68{\%}) when compared with the other options.",
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Feasibility analysis of different cogeneration systems for a paper mill to improve its energy efficiency. / Shabbir, Imran; Mirzaeian, Mojtaba.

In: International Journal of Hydrogen Energy, Vol. 41, No. 37, 05.10.2016, p. 16535–16548.

Research output: Contribution to journalArticle

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