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Experimental and theoretical investigation of an evaporative fuel system for heat engines

Thern, Marcus LU ; Lindquist, Torbjörn LU and Torisson, Tord LU (2007) In Energy Conversion and Management 48(4). p.1360-1366
Abstract
The evaporative gas turbine (EvGT) pilot plant has been in operation at Lund University in Sweden since 1997. This project has led to improved knowledge of evaporative techniques and the concept of introducing fuel into gas turbines by evaporation. This results in, amongst others, power augmentation, efficiency increase and lower emissions. This article presents the experimental and theoretical results of the evaporation of a mixture of ethanol and water into an air stream at elevated pressures and temperatures. A theoretical model has been established for the simultaneous heat and mass transfer occurring in the ethanol humidification tower. The theoretical model has been validated through experiments at several operating conditions. It... (More)
The evaporative gas turbine (EvGT) pilot plant has been in operation at Lund University in Sweden since 1997. This project has led to improved knowledge of evaporative techniques and the concept of introducing fuel into gas turbines by evaporation. This results in, amongst others, power augmentation, efficiency increase and lower emissions. This article presents the experimental and theoretical results of the evaporation of a mixture of ethanol and water into an air stream at elevated pressures and temperatures. A theoretical model has been established for the simultaneous heat and mass transfer occurring in the ethanol humidification tower. The theoretical model has been validated through experiments at several operating conditions. It has been shown that the air, water and ethanol can be calculated throughout the column in a satisfactory way. The height of the column can be estimated within an error of 15% compared with measurements. The results from the model are most sensitive to the properties of diffusion coefficient, viscosity, thermal conductivity and activity coefficient due to the complexity of the polar gas mixture of water and air. (c) 2007 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
fuel system, evaporation, humidification, humid air turbine, gas turbine, evaporative gas turbine
in
Energy Conversion and Management
volume
48
issue
4
pages
1360 - 1366
publisher
Elsevier
external identifiers
  • wos:000245311200034
  • scopus:33847135697
ISSN
0196-8904
DOI
10.1016/j.enconman.2006.06.009
language
English
LU publication?
yes
id
59f79a18-288e-4873-8b39-66eaa349452d (old id 668546)
date added to LUP
2008-01-03 10:18:44
date last changed
2017-09-03 04:26:26
@article{59f79a18-288e-4873-8b39-66eaa349452d,
  abstract     = {The evaporative gas turbine (EvGT) pilot plant has been in operation at Lund University in Sweden since 1997. This project has led to improved knowledge of evaporative techniques and the concept of introducing fuel into gas turbines by evaporation. This results in, amongst others, power augmentation, efficiency increase and lower emissions. This article presents the experimental and theoretical results of the evaporation of a mixture of ethanol and water into an air stream at elevated pressures and temperatures. A theoretical model has been established for the simultaneous heat and mass transfer occurring in the ethanol humidification tower. The theoretical model has been validated through experiments at several operating conditions. It has been shown that the air, water and ethanol can be calculated throughout the column in a satisfactory way. The height of the column can be estimated within an error of 15% compared with measurements. The results from the model are most sensitive to the properties of diffusion coefficient, viscosity, thermal conductivity and activity coefficient due to the complexity of the polar gas mixture of water and air. (c) 2007 Elsevier Ltd. All rights reserved.},
  author       = {Thern, Marcus and Lindquist, Torbjörn and Torisson, Tord},
  issn         = {0196-8904},
  keyword      = {fuel system,evaporation,humidification,humid air turbine,gas turbine,evaporative gas turbine},
  language     = {eng},
  number       = {4},
  pages        = {1360--1366},
  publisher    = {Elsevier},
  series       = {Energy Conversion and Management},
  title        = {Experimental and theoretical investigation of an evaporative fuel system for heat engines},
  url          = {http://dx.doi.org/10.1016/j.enconman.2006.06.009},
  volume       = {48},
  year         = {2007},
}