Derivation of a correlation to determine a combined cycle's performance based on data from the gas turbine exhaust
(2019) MVKM01 20191Department of Energy Sciences
- Abstract
- Power production has a vital role in the functioning of society and will have a major part in the future of environmental and economical sustainability. Therefore, efficiencies of power plants are always a subject to improvements in order to utilise resources as efficient as possible. A Combined Cycle, combining a gas turbine topping cycle and a steam turbine bottoming cycle, is a widely used configuration for producing electricity at a high efficiency. It is not enough to have an understanding of the improvements on the efficiencies of both cycles individually, but also the interaction between them. When a gas turbine is to be chosen in a design process, for a new power plant or for an upgrade to an existing one, it is difficult to make... (More)
- Power production has a vital role in the functioning of society and will have a major part in the future of environmental and economical sustainability. Therefore, efficiencies of power plants are always a subject to improvements in order to utilise resources as efficient as possible. A Combined Cycle, combining a gas turbine topping cycle and a steam turbine bottoming cycle, is a widely used configuration for producing electricity at a high efficiency. It is not enough to have an understanding of the improvements on the efficiencies of both cycles individually, but also the interaction between them. When a gas turbine is to be chosen in a design process, for a new power plant or for an upgrade to an existing one, it is difficult to make an accurate and instantaneous estimation of the Combined Cycle efficiency. This report presents a method to estimate the efficiency down to a thousandth of a percent for a selection of constellations of Combined Cycles without any complex calculation processes. The second law efficiency proved to be the key to correlate changes of parameters resulting in a powerful method that will make accurate predictions of the efficiency for a wide set of power plants. (Less)
- Popular Abstract (Swedish)
- Idag har det blivit otroligt viktigt med ett miljömässigt ansvarstagande, speciellt vad gäller elproduktion. Här presenteras ett arbete där prestandabedömningen av dagens mest termodynamiskt effektiva fossila kraftverk, kombikraftverk, revolutioneras.
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/8981886
- author
- Ingelström, Mattias LU
- supervisor
- organization
- course
- MVKM01 20191
- year
- 2019
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Combined Cycle efficiency, second law efficiency, HRSG, exergy, irreversibilities
- report number
- LUTMDN/TMHP-19/5437-SE
- ISSN
- 0282-1990
- language
- English
- id
- 8981886
- date added to LUP
- 2019-06-11 14:16:00
- date last changed
- 2019-06-11 14:16:00
@misc{8981886, abstract = {{Power production has a vital role in the functioning of society and will have a major part in the future of environmental and economical sustainability. Therefore, efficiencies of power plants are always a subject to improvements in order to utilise resources as efficient as possible. A Combined Cycle, combining a gas turbine topping cycle and a steam turbine bottoming cycle, is a widely used configuration for producing electricity at a high efficiency. It is not enough to have an understanding of the improvements on the efficiencies of both cycles individually, but also the interaction between them. When a gas turbine is to be chosen in a design process, for a new power plant or for an upgrade to an existing one, it is difficult to make an accurate and instantaneous estimation of the Combined Cycle efficiency. This report presents a method to estimate the efficiency down to a thousandth of a percent for a selection of constellations of Combined Cycles without any complex calculation processes. The second law efficiency proved to be the key to correlate changes of parameters resulting in a powerful method that will make accurate predictions of the efficiency for a wide set of power plants.}}, author = {{Ingelström, Mattias}}, issn = {{0282-1990}}, language = {{eng}}, note = {{Student Paper}}, title = {{Derivation of a correlation to determine a combined cycle's performance based on data from the gas turbine exhaust}}, year = {{2019}}, }