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Environmental Impact Assessments of Integrated Multigeneration Energy Systems

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Causes, Impacts and Solutions to Global Warming

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.

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Abbreviations

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)

T PZ :

Adiabatic flame temperature (°C)

\( \dot{W} \) :

Work rate (kW)

ε :

Normalized CO2 emission

ζ :

H/C atomic ratio

η :

Energy efficiency

η GT :

Gas turbine isentropic efficiency

θ :

Dimensionless temperature

π :

Dimensionless pressure

Φ :

Molar ratio

Ψ :

Exergy efficiency

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

COP:

Coefficient of performance

HRSG:

Heat recovery steam generator

HRVG:

Heat recovery vapor generator

PEM:

Proton exchange membrane

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Acknowledgements

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

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Authors and Affiliations

  1. Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, ON, Canada, L1H 7K4

    Pouria Ahmadi, Ibrahim Dincer & Marc A. Rosen

Authors
  1. Pouria Ahmadi
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  2. Ibrahim Dincer
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  3. Marc A. Rosen
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Corresponding author

Correspondence to Pouria Ahmadi .

Editor information

Editors and Affiliations

  1. Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa, Ontario, Canada

    Ibrahim Dincer

  2. Makina Muhendisligi Bolumu, Dokuz Eylul University, Buca, Izmir, Turkey

    Can Ozgur Colpan

  3. Faculty of Civil Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey

    Fethi Kadioglu

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Ahmadi, P., Dincer, I., Rosen, M.A. (2013). Environmental Impact Assessments of Integrated Multigeneration Energy Systems. In: Dincer, I., Colpan, C., Kadioglu, F. (eds) Causes, Impacts and Solutions to Global Warming. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7588-0_40

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  • DOI: https://doi.org/10.1007/978-1-4614-7588-0_40

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  • Online ISBN: 978-1-4614-7588-0

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