The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform

E Dick - One of the best experts on this subject based on the ideXlab platform.

  • technological and economical analysis of water recovery in steam injected Gas Turbines
    Applied Thermal Engineering, 2001
    Co-Authors: M De Paepe, E Dick
    Abstract:

    Steam injected Gas Turbines are an interesting technology for co-generation applications. In these Gas Turbines the heat of the exhaust Gases is used to produce steam. This steam is injected in the combustion chamber, resulting in a high specific power and a high thermal efficiency. A major disadvantage of steam injected Gas Turbines is the large water consumption. Placing a condenser in the cycle makes it possible to recover all the injected steam. An analysis is made of different types of condensers. Condensers based on finned tubes and direct-contact-condensers are considered. The dimensions of the condensers are determined for existing steam injected Gas Turbines. Furthermore, the investment costs and the exploitation costs for each type are compared.

  • Water recovery in steam injected Gas Turbines : a technological and economical analysis
    European journal of mechanical and environmental engineering, 1999
    Co-Authors: M De Paepe, E Dick
    Abstract:

    Steam injected Gas Turbines are an interesting technology for co-generation applications. In these Gas Turbines the heat of the exhaust Gasses is used to produce steam. This steam is injected in the combustion chamber, resulting in a high specific power and a high thermal efficiency. A major disadvantage of steam injected Gas Turbines is the large water consumption. Placing a condenser in the cycle makes it possible to recover all the injected steam. An analysis is made of different types of condensers. Condensers based on finned tubes and direct-contact-condensers are considered. The dimensions of the condensers are determined for existing steam injected Gas Turbines. Furthermore the investment costs and the exploitation costs for every type are compared.

M De Paepe - One of the best experts on this subject based on the ideXlab platform.

  • technological and economical analysis of water recovery in steam injected Gas Turbines
    Applied Thermal Engineering, 2001
    Co-Authors: M De Paepe, E Dick
    Abstract:

    Steam injected Gas Turbines are an interesting technology for co-generation applications. In these Gas Turbines the heat of the exhaust Gases is used to produce steam. This steam is injected in the combustion chamber, resulting in a high specific power and a high thermal efficiency. A major disadvantage of steam injected Gas Turbines is the large water consumption. Placing a condenser in the cycle makes it possible to recover all the injected steam. An analysis is made of different types of condensers. Condensers based on finned tubes and direct-contact-condensers are considered. The dimensions of the condensers are determined for existing steam injected Gas Turbines. Furthermore, the investment costs and the exploitation costs for each type are compared.

  • Water recovery in steam injected Gas Turbines : a technological and economical analysis
    European journal of mechanical and environmental engineering, 1999
    Co-Authors: M De Paepe, E Dick
    Abstract:

    Steam injected Gas Turbines are an interesting technology for co-generation applications. In these Gas Turbines the heat of the exhaust Gasses is used to produce steam. This steam is injected in the combustion chamber, resulting in a high specific power and a high thermal efficiency. A major disadvantage of steam injected Gas Turbines is the large water consumption. Placing a condenser in the cycle makes it possible to recover all the injected steam. An analysis is made of different types of condensers. Condensers based on finned tubes and direct-contact-condensers are considered. The dimensions of the condensers are determined for existing steam injected Gas Turbines. Furthermore the investment costs and the exploitation costs for every type are compared.

R. Bhargava - One of the best experts on this subject based on the ideXlab platform.

  • parametric analysis of existing Gas Turbines with inlet evaporative and overspray fogging
    Journal of Engineering for Gas Turbines and Power-transactions of The Asme, 2005
    Co-Authors: R. Bhargava, Cyrus B Meherhomji
    Abstract:

    With deregulation in the power generation market and a need for flexibility in terms of power augmentation during the periods of high electricity demand, power plant operators all over the world are exploring means to augment power from both the existing and new Gas Turbines. An approach becoming increasingly popular is that of the high pressure inlet fogging. In this paper, the results of a comprehensive parametric analysis on the effects of inlet fogging on a wide range of existing Gas Turbines are presented. Both evaporative and overspray fogging conditions have been analyzed. The results show that the performance parameters indicative of inlet fogging effects have a definitive correlation with the key Gas turbine design parameters. In addition, this study indicates that the aeroderivative Gas Turbines, in comparison to the heavy-duty industrial machines, have higher performance improvement due to inlet fogging effects. Plausible reasons for the observed trends are discussed. This paper represents the first systematic study on the effects of inlet fogging for a large number (a total of 67) of Gas Turbines available from the major Gas turbine manufacturers.

  • A feasibility study of existing Gas Turbines for recuperated, intercooled, and reheat cycle
    Journal of Engineering for Gas Turbines and Power, 2004
    Co-Authors: R. Bhargava, Michele Bianchi, Antonio Peretto, Pier Ruggero Spina
    Abstract:

    In the present paper, a comprehensive and simple in application design methodology to obtain a Gas turbine working on recuperated, intercooled, and reheat cycle utilizing existing Gas Turbines is presented. Applications of the proposed design steps have been implemented on the three existing Gas Turbines with wide ranging design complexities. The results of evaluated aerothermodynamic performance for these existing Gas Turbines with the proposed modifications are presented and compared in this paper. Sample calculations of the analysis procedures discussed, including stage-by-stage analysis of the compressor and turbine sections of the modified Gas Turbines, have been also included. All the three modified Gas Turbines were found to have higher performance, with cycle efficiency increase of 9% to 26%, in comparison to their original values.

  • A Feasibility Study of Existing Gas Turbines for Recuperated, Intercooled and Reheat Cycle
    Volume 4: Turbo Expo 2002 Parts A and B, 2002
    Co-Authors: R. Bhargava, Michele Bianchi, Antonio Peretto, Pier Ruggero Spina
    Abstract:

    In the present paper, a comprehensive and simple in application design methodology to obtain a Gas turbine working on recuperated, intercooled and reheat cycle utilizing existing Gas Turbines is presented. Applications of the proposed design steps have been implemented on the three existing Gas Turbines, with wide ranging design complexities. The results of evaluated aero-thermodynamic performance for these existing Gas Turbines with the proposed modifications are presented and compared in this paper. Sample calculations of the analysis procedures discussed, including stage-by-stage analysis of the compressor and turbine sections of the modified Gas Turbines, have been also included. All the three modified Gas Turbines were found to have higher performance, with cycle efficiency increase of 9% to 26%, in comparison to their original values.© 2002 ASME

  • parametric analysis of existing Gas Turbines with inlet evaporative and overspray fogging
    ASME Turbo Expo 2002: Power for Land Sea and Air, 2002
    Co-Authors: R. Bhargava, Cyrus B Meherhomji
    Abstract:

    With deregulation in the power generation market and the need for flexibility in terms of power augmentation during periods of high electricity demand, power plant operators all over the world are exploring means to augment power from both existing and new Gas Turbines. An approach becoming increasingly popular is that of high pressure fogging. In this paper, the results of a comprehensive parametric analysis on the effects of inlet fogging on a wide range of existing Gas Turbines have been presented. Both evaporative and overspray fogging conditions have been analyzed. The results of this study show that the performance parameters indicative of inlet fogging effects have definitive correlation with the key Gas turbine design parameters. In addition, this study indicates that aeroderivative Gas Turbines, in comparison to the industrial machines, have higher performance improvement due to the inlet fogging effects. Plausible reasons for the observed trends are discussed in this paper. This paper represents the first systematic study on the effects of inlet fogging for a large number (a total of 67) of Gas turbine engines available from major Gas turbine manufacturers.Copyright © 2002 by ASME

Pier Ruggero Spina - One of the best experts on this subject based on the ideXlab platform.

  • A feasibility study of existing Gas Turbines for recuperated, intercooled, and reheat cycle
    Journal of Engineering for Gas Turbines and Power, 2004
    Co-Authors: R. Bhargava, Michele Bianchi, Antonio Peretto, Pier Ruggero Spina
    Abstract:

    In the present paper, a comprehensive and simple in application design methodology to obtain a Gas turbine working on recuperated, intercooled, and reheat cycle utilizing existing Gas Turbines is presented. Applications of the proposed design steps have been implemented on the three existing Gas Turbines with wide ranging design complexities. The results of evaluated aerothermodynamic performance for these existing Gas Turbines with the proposed modifications are presented and compared in this paper. Sample calculations of the analysis procedures discussed, including stage-by-stage analysis of the compressor and turbine sections of the modified Gas Turbines, have been also included. All the three modified Gas Turbines were found to have higher performance, with cycle efficiency increase of 9% to 26%, in comparison to their original values.

  • A Feasibility Study of Existing Gas Turbines for Recuperated, Intercooled and Reheat Cycle
    Volume 4: Turbo Expo 2002 Parts A and B, 2002
    Co-Authors: R. Bhargava, Michele Bianchi, Antonio Peretto, Pier Ruggero Spina
    Abstract:

    In the present paper, a comprehensive and simple in application design methodology to obtain a Gas turbine working on recuperated, intercooled and reheat cycle utilizing existing Gas Turbines is presented. Applications of the proposed design steps have been implemented on the three existing Gas Turbines, with wide ranging design complexities. The results of evaluated aero-thermodynamic performance for these existing Gas Turbines with the proposed modifications are presented and compared in this paper. Sample calculations of the analysis procedures discussed, including stage-by-stage analysis of the compressor and turbine sections of the modified Gas Turbines, have been also included. All the three modified Gas Turbines were found to have higher performance, with cycle efficiency increase of 9% to 26%, in comparison to their original values.© 2002 ASME

A. Calvo Hernández - One of the best experts on this subject based on the ideXlab platform.

  • Regenerative Gas Turbines at maximum power density conditions
    Journal of Physics D: Applied Physics, 1996
    Co-Authors: Alejandro Medina, José Miguel Mateos Roco, A. Calvo Hernández
    Abstract:

    A new kind of power analysis has recently been presented which is based on the maximization of the power density and predicts smaller and more efficient non-regenerative Joule - Brayton engines than those designed at maximum power. In this paper we apply the power density maximization method to regenerative Gas Turbines using a theoretical framework where the optimal operating conditions of the heat engine are expressed in terms of the isentropic efficiencies of the compressor and turbine and of the heat exchanger efficiency. It is shown that, unlike non-regenerative results, real regenerative Gas Turbines are less efficient at maximum power density conditions than at maximum power conditions.