© SRI Consulting, IHS Inc. PEP Review 2011-13

PEP Review 2011-13

ADVANCED TECHNOLOGY

NATURAL GAS COMBINED CYCLE

By

Michael Arné

(November 2011)

ABSTRACT

Over the past decade, gas turbine manufacturers have worked to push performance beyond

the 60% efficiency level. These efforts have been driven by both the price of natural gas and a

desire for reduced carbon dioxide emissions. Earlier this year, Mitsubishi Heavy Industries

announced the introduction of a new J-series gas turbine. This turbine exploits recent advances

in metallurgy and thermal coatings which enable turbine inlet temperatures as high as 1,600°C.

Such temperatures should allow a combined cycle thermodynamic efficiency above 60% on an

LHV basis.

In this review we present an analysis of an advanced technology gas turbine based on the

Mitsubishi J-series machine. We evaluate its combined cycle thermodynamics and compare

power generation economics to those of a twin turbine F-class installation.

Process Economics Program

A private report by the

Review No. 2011-13

ADVANCED TECHNOLOGY NATURAL GAS COMBINED CYCLE

by Michael Arné

November 2011

Menlo Park, California 94025

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CONTENTS

© SRI Consulting, IHS Inc. iii PEP Review 2011-13

TECHNICAL BACKGROUND .................................................................................... 1

Purpose of This Study ................................................................................................ 1

PROCESS DESCRIPTION ........................................................................................ 2

Base Case .................................................................................................................. 2

Advanced Technology Case ...................................................................................... 8

PROCESS DISCUSSION .......................................................................................... 15

Cost Estimates ........................................................................................................... 16

Production Costs ........................................................................................................ 21

REFERENCES ........................................................................................................... 27

FIGURES

© SRI Consulting, IHS Inc. iv PEP Review 2011-13

1 Natural Gas Combined Cycle Base Case

Process Flow Diagram .......................................................................................... 29

2 Advanced Technology Gas Turbine Combined Cycle

Process Flow Diagram .......................................................................................... 31

TABLES

© SRI Consulting, IHS Inc. v PEP Review 2011-13

1 Natural Gas Combined Cycle Power Generation Base Case

Design Bases ........................................................................................................ 3

2 Natural Gas Combined Cycle Power Generation Base Case

Major Equipment List ............................................................................................. 3

3 Natural Gas Combined Cycle Base Case

Major Stream Flow ................................................................................................ 7

4 Natural Gas Combined Cycle Power Generation

Advanced Technology Case

Design Bases ........................................................................................................ 9

5 Natural Gas Combined Cycle Power Generation

Advanced Technology Case

Major Equipment List ............................................................................................. 9

6 Advanced Technology Gas Turbine Combined Cycle

Major Stream Flow ................................................................................................ 14

7 Natural Gas Combined Cycle Power Generation

Advanced Technology versus Base Case

Plant Performance Summaries ............................................................................. 16

8 NGCC Power Generation Base Case

Total Capital Investment ........................................................................................ 18

9 NGCC Power Generation Advanced Technology Case

Total Capital Investment ........................................................................................ 19

10 NGCC Power Generation Advanced Technology Case: Turbine Price Parity

Total Capital Investment ........................................................................................ 20

11 NGCC Power Generation Base Case (at 0.85 SF)

Production Costs ................................................................................................... 23

12 NGCC Power Generation Advanced Technology Case (at 0.85 SF)

Production Costs ................................................................................................... 25