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Trigeneration: Thermodynamic performance and cold expander aerodynamic design in humid air turbines

Genrup, Magnus LU ; Thern, Marcus LU and Assadi, Mohsen LU (2003) 2003 ASME Turbo Expo In American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) IGTI 6 A. p.1-8
Abstract
Improving electrical efficiency has been proposed as the most convenient means of reducing, e.g. CO<sub>2</sub> emission from power plants. Increasing fuel utilization through combined heat and power generation is another useful measure for emission reduction. Trigeneration technology for the production of heat, power and cooling is an interesting alternative for further improvement of fuel utilization. Previous studies at The Department of Heat and Power Engineering in Lund. Sweden, have shown that wet cycles are the best candidates, with a high potential to achieve fuel utilization higher than 100%, based on the fuel's lower heating value [1, 2, 8]. Apart from high fuel utilization, trigeneration technology can produce... (More)
Improving electrical efficiency has been proposed as the most convenient means of reducing, e.g. CO<sub>2</sub> emission from power plants. Increasing fuel utilization through combined heat and power generation is another useful measure for emission reduction. Trigeneration technology for the production of heat, power and cooling is an interesting alternative for further improvement of fuel utilization. Previous studies at The Department of Heat and Power Engineering in Lund. Sweden, have shown that wet cycles are the best candidates, with a high potential to achieve fuel utilization higher than 100%, based on the fuel's lower heating value [1, 2, 8]. Apart from high fuel utilization, trigeneration technology can produce cooling without the use of harmful cooling agents. The basic principle of trigeneration is to interrupt the expansion at an elevated pressure level and extract heat from the working medium. The final expansion then takes place at low temperature admission levels resulting in a very low temperature at the turbine exhaust. In this paper results from both thermodynamic analysis of the humid air turbine concept in conjunction with trigeneration. and the expander design criterion required for realization of the last section of the expander are presented. The thermodynamic study gives the boundary conditions for the cold turbine design. Optimum conditions for the inlet to the cold expander are a pressure of 2 to 3 bar and a temperature of 47 (Less)
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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Electrical efficiency, Trigeneration technology, Fuel utilization
in
American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) IGTI
volume
6 A
pages
1 - 8
publisher
American Society Of Mechanical Engineers (ASME)
conference name
2003 ASME Turbo Expo
external identifiers
  • scopus:0347595247
language
English
LU publication?
yes
id
4251dc4f-3fb4-4614-b405-5b3708073733 (old id 613278)
date added to LUP
2007-11-28 13:46:31
date last changed
2017-01-01 08:06:25
@inproceedings{4251dc4f-3fb4-4614-b405-5b3708073733,
  abstract     = {Improving electrical efficiency has been proposed as the most convenient means of reducing, e.g. CO&lt;sub&gt;2&lt;/sub&gt; emission from power plants. Increasing fuel utilization through combined heat and power generation is another useful measure for emission reduction. Trigeneration technology for the production of heat, power and cooling is an interesting alternative for further improvement of fuel utilization. Previous studies at The Department of Heat and Power Engineering in Lund. Sweden, have shown that wet cycles are the best candidates, with a high potential to achieve fuel utilization higher than 100%, based on the fuel's lower heating value [1, 2, 8]. Apart from high fuel utilization, trigeneration technology can produce cooling without the use of harmful cooling agents. The basic principle of trigeneration is to interrupt the expansion at an elevated pressure level and extract heat from the working medium. The final expansion then takes place at low temperature admission levels resulting in a very low temperature at the turbine exhaust. In this paper results from both thermodynamic analysis of the humid air turbine concept in conjunction with trigeneration. and the expander design criterion required for realization of the last section of the expander are presented. The thermodynamic study gives the boundary conditions for the cold turbine design. Optimum conditions for the inlet to the cold expander are a pressure of 2 to 3 bar and a temperature of 47},
  author       = {Genrup, Magnus and Thern, Marcus and Assadi, Mohsen},
  booktitle    = {American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) IGTI},
  keyword      = {Electrical efficiency,Trigeneration technology,Fuel utilization},
  language     = {eng},
  pages        = {1--8},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Trigeneration: Thermodynamic performance and cold expander aerodynamic design in humid air turbines},
  volume       = {6 A},
  year         = {2003},
}