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Energy, Exergy and Environmental Analyses of Biomass Gasifier Combined Integrated Plant

  • Fatih Yilmaz
  • Murat OzturkEmail author
Conference paper
Part of the Green Energy and Technology book series (GREEN)

Abstract

The fundamental purpose of this chapter is to examine a novel renewable energy supported combined plant. The suggested chapter occurs with biomass gasifier unit, gas turbine system, Rankine cycle, single-effect absorption cycle, hydrogen generation unit, dryer cycle, and hot-water production unit. This chapter is designed and developed for useful outputs, such as heating, cooling, electricity, hydrogen, drying and hot water with a single biomass energy input. In this context, detailed energy and exergy efficiency, and also environmental effect analyses are carried out with Engineering Equation Solver software. The effects of environment and gasification temperatures and biomass mass flow rate changes on the plant performance and on carbon emissions are investigated and presented as graphs. Results display that the energetic and exergetic efficiency of integrated plant are found as 63.84 and 59.26%. Also, the overall hydrogen generation and exergy destruction rate are 0.068 kg/s and 52,529 kW, respectively.

Keywords

Biomass Energy Exergy Environment Integrated system 

Nomenclature

.

E

Energy (kJ)

\(\dot{E}\)

Energy rate (kW)

\(\dot{E}x\)

Exergy rate (kW)

ex

Exergy

h

Specific enthalpy (kJ/kg)

P

Pressure (kPa)

s

Specific entropy (kJ/kg-K)

T

Temperature (°C-K)

\(\dot{m}\)

Mass flow rate (kW)

\(\dot{Q}\)

Heat transfer rate (kW)

\(\dot{W}\)

Work rate (kW)

Greek letters

\(\eta\)

Energy efficiency

\(\psi\)

Exergy efficiency

ε

Emission rate

Subscripts

BGS

Biomass gasification system

cogen

Cogeneration

DC

Dryer cycle

e

Exit

en

Energy

ex

Exergy

GTS

Gas turbine system

HP

Hydrogen production

HPT

High pressure turbine

HWP

Hot-water production

i

Input

LPT

Low pressure turbine

RC

Rankine cycle

sngen

Single generation

trigen

Trigeneration

WS

Whole system

Abbreviations

COP

Performance coefficient

HEX

Heat exchanger

HHV

Higher heating value

LHV

Lower heating value

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Department of Electrical and Energy, Vocational School of Technical SciencesAksaray UniversityAksarayTurkey
  2. 2.Department of Mechatronic Engineering, Faculty of TechnologyIsparta University of Applied SciencesIspartaTurkey

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