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Environmental Impact Assessments of Integrated Multigeneration Energy Systems

  • Pouria AhmadiEmail author
  • Ibrahim Dincer
  • Marc A. Rosen
Chapter

Abstract

Multigeneration refers to an energy process which produces several useful outputs from one or more kinds of primary energy inputs. The main aims, when using multigeneration, are to increase efficiency and sustainability while reducing environmental impact and cost. In this chapter, thermodynamic modeling is performed of a multigeneration system consisting of a micro gas turbine, a double-pressure heat recovery steam generator, an absorption chiller, a domestic water heater that produces hot water at 60 °C, and a proton exchange membrane electrolyzer. In order to determine the irreversibilities in each component and the system performance, an exergy analysis is conducted. In addition, an environmental impact assessment of the multigeneration system is performed, and the potential reductions in CO2 and CO emissions when the system shifts from power generation to multigeneration are investigated. To understand system performance more comprehensively, a parametric study is performed to study the effects of several important design parameters on the system energy and exergy efficiencies.

Keywords

Energy Efficiency Exergy Greenhouse gas emission Multigeneration 

Nomenclature

ex

Specific exergy, kJ/kg

\( \dot{E}{x}_D \)

Exergy destruction rate, kW

h

Specific enthalpy, kJ/kg

LHV

Lower heating value (kJ/kg)

\( \dot{m} \)

Mass flow rate, kg/s

\( \dot{Q} \)

Heat transfer rate, kW

s

Specific entropy, kJ/kg K

T

Temperature (°C)

TPZ

Adiabatic flame temperature (°C)

\( \dot{W} \)

Work rate (kW)

Greek Letters

ε

Normalized CO2 emission

ζ

H/C atomic ratio

η

Energy efficiency

ηGT

Gas turbine isentropic efficiency

θ

Dimensionless temperature

π

Dimensionless pressure

Φ

Molar ratio

Ψ

Exergy efficiency

Subscripts

ABS

Absorber

AC

Air compressor

CC

Combustion chamber

ch

Chemical

CHP

Combined heat and power

Comb

Combustion chamber

Cond

Condenser

D

Destruction

DHW

Domestic water heater

EVP

Evaporator

EXV

Expansion valve

f

Fuel

Gen

Generator

GT

Gas turbine

HEX

Heat exchanger

Multi

Multigeneration

Mix

Mixture

ORC

Organic Rankine cycle

P

Pump

Ph

Physical

PRH

Preheater

ref

Reference

ST

Steam turbine

Acronyms

COP

Coefficient of performance

HRSG

Heat recovery steam generator

HRVG

Heat recovery vapor generator

PEM

Proton exchange membrane

Notes

Acknowledgements

The authors acknowledge the support provided by the Natural Sciences and Engineering Research Council of Canada.

References

  1. 1.
    Colpan CO, Dincer I, Hamdullahpur F (2009) Reduction of greenhouse gas emissions using various thermal systems in a landfill site. Int J Global Warming 1(1–3):89–105CrossRefGoogle Scholar
  2. 2.
    Renato S (2005) Atmospheric methane and nitrous oxide of the late pleistocene from antarctic ice cores. Science 310(5752):1317–1321CrossRefGoogle Scholar
  3. 3.
    Environmental Protect Agency (2012) http://www.epa.gov. Accessed Sept 2012
  4. 4.
    Dincer I (2000) Renewable energy and sustainable development: a crucial review. Renew Sustain Energy Rev 4(2):157–175CrossRefGoogle Scholar
  5. 5.
    Ahmadi P, Dincer I (2010) Exergoenvironmental analysis and optimization of a cogeneration plant system using Multimodal Genetic Algorithm (MGA). Energy 35:5161–5172CrossRefGoogle Scholar
  6. 6.
    Al-Sulaiman F, Dincer I, Hamdullahpur F (2010) Exergy analysis of an integrated solid oxide fuel cell and organic Rankine cycle for cooling, heating and power production. J Power Sources 195(8):2346–2354CrossRefGoogle Scholar
  7. 7.
    Athanasovici V, Le Corre O, Brecq G, Tazerout M (2000) Thermo-economic analysis method for cogeneration plants. In: Proc. of international conference on efficiency, cost, optimization, simulation and environmental impact of energy systems, Netherlands., pp 157–164Google Scholar
  8. 8.
    Havelsky V (1999) Energetic efficiency of cogeneration systems for combined heat, cold and power production. Int J Refrig 22:479–485CrossRefGoogle Scholar
  9. 9.
    Sahoo PK (2008) Exergoeconomic analysis and optimization of a cogeneration system using evolutionary programming. Appl Therm Eng 28(13):1580–1588CrossRefGoogle Scholar
  10. 10.
    Khaliq A, Kumar R, Dincer I (2009) Performance analysis of an industrial waste heat-based trigeneration system. Int J Energ Res 33:737–744CrossRefGoogle Scholar
  11. 11.
    Dincer I, Rosen MA (2013) Exergy: energy, environment and sustainable development, 2dth edn. Elsevier, UKGoogle Scholar
  12. 12.
    Ahmadi P, Barzegar Avval H, Ghaffarizadeh A, Saidi MH (2011) Thermo-economic-environmental multi-objective optimization of a gas turbine power plant with preheater using evolutionary algorithm. Int J Energ Res 35(5):389–403CrossRefGoogle Scholar
  13. 13.
    Ahmadi P, Rosen MA, Dincer I (2011) Greenhouse gas emission and exergo-environmental analyses of a trigeneration energy system. Int J Greenhouse Gas Control 5(6):1540–1549CrossRefGoogle Scholar
  14. 14.
    Ahmadi P, Dincer I, Rosen MA (2011) Exergo-environmental analysis of an integrated organic Rankine cycle for trigeneration. Energ Convers Manage 64:447–453CrossRefGoogle Scholar
  15. 15.
    Al-Sulaiman FA, Dincer I, Hamdullahpur F (2012) Energy and exergy analyses of a biomass trigeneration system using an organic Rankine cycle. Energy 45:975–985CrossRefGoogle Scholar
  16. 16.
    Al-Sulaiman FA, Hamdullahpur F, Dincer I (2012) Performance assessment of a novel system using parabolic trough solar collectors for combined cooling, heating, and power production. Renew Energy 48:161–172CrossRefGoogle Scholar
  17. 17.
    Ahmadi P, Rosen MA, Dincer I (2012) Multi-objective exergy-based optimization of a polygeneration energy system using an evolutionary algorithm. Energy 46:21–31CrossRefGoogle Scholar
  18. 18.
    Ratlamwala T, Dincer I, Gadalla MA (2012) Performance analysis of a novel integrated geothermal-based system for multi-generation applications. Appl Therm Eng 40:71–79CrossRefGoogle Scholar
  19. 19.
    Ratlamwala T, Dincer I, Gadalla MA (2012) Thermodynamic analysis of an integrated geothermal based quadruple effect absorption system for multigenerational purposes. Thermochim Acta 535:27–35CrossRefGoogle Scholar
  20. 20.
    Dincer I, Zamfirescu C (2012) Renewable-energy-based multigeneration systems. Int J Energ Res 36(15):1403–1415CrossRefGoogle Scholar
  21. 21.
    Dincer I (2010) Development of solar-driven multi-generation system. Introduction to energy system course. University of Ontario Institute of Technology (UOIT), Oshawa, CanadaGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Faculty of Engineering and Applied ScienceUniversity of Ontario Institute of TechnologyOshawaCanada

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