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On the Selection of Methods and Tools for Analysis of Heat and Power Plants

Olausson, Pernilla LU (2003)
Abstract (Swedish)
Popular Abstract in Swedish

Affärsklimatet för dagens energimarknad har varit händelserik de senaste två decennierna med introduktaion av den avreglerade elmarknaden och den ökade vikten av miljöfrågor vid design och inköp av energirelaterade anläggningar. Detta har bidragit med krav om nya analyskriterier, vilka inte bara påverkar den tekniska utformningen av komponenter och system, utan även till vilket pris som olika ”energiprodukter” kan framställas. För att klara av att svara på de nya frågor som har uppstått, så har kunskap och handlag av tillgängliga analysmetoder blivit avgörande faktorer.



I denna avhandling har åtta olika metoder och verktyg undersökts för att förse läsaren med en förståelse för... (More)
Popular Abstract in Swedish

Affärsklimatet för dagens energimarknad har varit händelserik de senaste två decennierna med introduktaion av den avreglerade elmarknaden och den ökade vikten av miljöfrågor vid design och inköp av energirelaterade anläggningar. Detta har bidragit med krav om nya analyskriterier, vilka inte bara påverkar den tekniska utformningen av komponenter och system, utan även till vilket pris som olika ”energiprodukter” kan framställas. För att klara av att svara på de nya frågor som har uppstått, så har kunskap och handlag av tillgängliga analysmetoder blivit avgörande faktorer.



I denna avhandling har åtta olika metoder och verktyg undersökts för att förse läsaren med en förståelse för den information som de olika metoderna och verktygen bidrar med, både separat och i kombination med varandra, samt i vilka beslutssituationer som de kan anses vara lämpade. Metoderna och verktygen har applicerats på ett antal kraftverkskonstellationer som presenteras närmare i de sju artiklar som sammanläggningsavhandlingen bygger på, för att visa på olika för- och nackdelar som de har i olika situationer.



Vid analyser av kraftverk idag så står ofta driftfasen i fokus. Detta fenomen beror troligen på att det är just denna fas som bidrar med intäkter till ägaren och det är också denna period då anläggningen och dess komponenter är synlig för användaren/ägaren. Vid införande av miljöstyrningssystem i företagen och politiska styrmedel så är det kanske inte längre tillräckligt att enbart ta dena livsfas under beaktande. För att möjliggöra en investering med så låg risk som möjligt för köparen, så är det troligen vist att se till ett livscykelperspektiv, vilket inte enbart synliggör livscykelkostnader utan också enläggningens totala miljöpåverkan



Idag finns det inget universalverktyg eller metod som innefattar samtliga av de tre begränsande faktorerna – teknik, ekonomi och miljö – samtidigt i en analyssituation. Det finns dock en hel uppsjö av möjliga analysmetoder(verktyg) som tillsammans omfattar samtliga dessa begränsningar. I denna avhandling så föreslås en utvärderingsplattform där olika metoder och verktyg kombineras för att täcka ett kraftverks hela livstid.



Det påvisas i denna avhandling att kraftverk med hög verkningsgrad, vilka därmed också anses mer miljövänliga under drift, inte nödvändigtvis har denna egenskap vid utvärdering av hela livscykeln. Det visas vidare att kombinationer av metoder och verktyg introducerar viktig information och i vissa fall även mer pålitliga resultat. (Less)
Abstract
The business climate of the energy market has been eventful over the last two decades, particularly with the introduction of the deregulated electricity market and promotion of environmental issues. This has subsequently lead to new analysis criteria, influencing both technology requirements and production costs. To be able to manage all the questions that have arisen from this the knowledge of the available analysis methods and tools has become crucial.



In this thesis eight different methods and tools have been investigated to provide the reader with an understanding of what information they provide, both separate and in combination, and for which decision-making situations they could be suitable. These methods and... (More)
The business climate of the energy market has been eventful over the last two decades, particularly with the introduction of the deregulated electricity market and promotion of environmental issues. This has subsequently lead to new analysis criteria, influencing both technology requirements and production costs. To be able to manage all the questions that have arisen from this the knowledge of the available analysis methods and tools has become crucial.



In this thesis eight different methods and tools have been investigated to provide the reader with an understanding of what information they provide, both separate and in combination, and for which decision-making situations they could be suitable. These methods and tools have been applied on a number of case studies presented in the attached papers to illuminate their advantages and limitations.



When analyses of heat and power plants are carried out the focus of attention is often the operation of the plant. This is probably due to the fact that it is this part of the lifetime of the plant which is profitable, as well as the period of the lifetime when the plant is visible for the owner. However, with the introduction of environmental management systems and more decisive governmental economic incentives directing the choice of plant configurations and use of fuel, it is perhaps not sufficient to only consider this phase of the total lifetime. To be able to make an investment with as low a risk as possible, the lifecycle perspective has to be considered, bringing forward not only the lifecycle cost, but also the lifecycle environmental impact.



Today there is no 'universal', all-embracing method or tool that results in an analysis that takes technical, economic and environmental conditions into consideration. However, the available arsenal of methods and tools for analysis cover these aspects between them. In this thesis an evaluation deck, where the different methods and tools can be combined, is proposed in order to include the lifetime aspects that any heat and power plant involves.



It is shown in this thesis that heat and power plants that have high efficiency and therefore are considered as environmentally-friendly during operation, do not necessarily have this feature over the entire lifecycle. It is further shown that combinations of methods and tools introduce vital information and could advantageously be combined for more reliable results. (Less)
Please use this url to cite or link to this publication:
author
opponent
  • Prof Emeritus Hunyadi, Laszlo, KTH, Stockholm
organization
publishing date
type
Thesis
publication status
published
subject
keywords
applied thermodynamics, Termisk teknik, termodynamik, Thermal engineering, neural networks, LCA, environment, thermoeconomy, exergy, economics, Methods and tools, energy analysis
pages
198 pages
publisher
Division of Thermal Power engineering, Lund Institute of Technology, P.O. Box 118, SE-221 00 LUND, Sweden,
defense location
Room M:B in M-building, Ole Römers väg 1, Lund Institute of Technology
defense date
2003-12-11 10:15
ISSN
0282-1990
ISBN
91-628-5844-0
language
English
LU publication?
yes
id
ea04332f-f218-44b1-beb3-f2883dbe361b (old id 466500)
date added to LUP
2007-09-10 13:30:18
date last changed
2016-09-19 08:44:59
@phdthesis{ea04332f-f218-44b1-beb3-f2883dbe361b,
  abstract     = {The business climate of the energy market has been eventful over the last two decades, particularly with the introduction of the deregulated electricity market and promotion of environmental issues. This has subsequently lead to new analysis criteria, influencing both technology requirements and production costs. To be able to manage all the questions that have arisen from this the knowledge of the available analysis methods and tools has become crucial.<br/><br>
<br/><br>
In this thesis eight different methods and tools have been investigated to provide the reader with an understanding of what information they provide, both separate and in combination, and for which decision-making situations they could be suitable. These methods and tools have been applied on a number of case studies presented in the attached papers to illuminate their advantages and limitations.<br/><br>
<br/><br>
When analyses of heat and power plants are carried out the focus of attention is often the operation of the plant. This is probably due to the fact that it is this part of the lifetime of the plant which is profitable, as well as the period of the lifetime when the plant is visible for the owner. However, with the introduction of environmental management systems and more decisive governmental economic incentives directing the choice of plant configurations and use of fuel, it is perhaps not sufficient to only consider this phase of the total lifetime. To be able to make an investment with as low a risk as possible, the lifecycle perspective has to be considered, bringing forward not only the lifecycle cost, but also the lifecycle environmental impact.<br/><br>
<br/><br>
Today there is no 'universal', all-embracing method or tool that results in an analysis that takes technical, economic and environmental conditions into consideration. However, the available arsenal of methods and tools for analysis cover these aspects between them. In this thesis an evaluation deck, where the different methods and tools can be combined, is proposed in order to include the lifetime aspects that any heat and power plant involves.<br/><br>
<br/><br>
It is shown in this thesis that heat and power plants that have high efficiency and therefore are considered as environmentally-friendly during operation, do not necessarily have this feature over the entire lifecycle. It is further shown that combinations of methods and tools introduce vital information and could advantageously be combined for more reliable results.},
  author       = {Olausson, Pernilla},
  isbn         = {91-628-5844-0},
  issn         = {0282-1990},
  keyword      = {applied thermodynamics,Termisk teknik,termodynamik,Thermal engineering,neural networks,LCA,environment,thermoeconomy,exergy,economics,Methods and tools,energy analysis},
  language     = {eng},
  pages        = {198},
  publisher    = {Division of Thermal Power engineering, Lund Institute of Technology, P.O. Box 118, SE-221 00 LUND, Sweden,},
  school       = {Lund University},
  title        = {On the Selection of Methods and Tools for Analysis of Heat and Power Plants},
  year         = {2003},
}