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System study of externally fired gas turbines in different applications; Systemstudie av hetluftturbiner i olika tillaempningar

Technical Report:

Abstract

An attractive way to use the externally fired gas turbine technology is to put this type of gas turbine in front of a conventional boiler for steam or hot water. The gas turbine then acts as a ventilator with high temperature preheated combustion air. The goal for this report has been to investigate by system studies a number of different cogeneration applications for externally fired gas turbines. The following types of biomass fueled cogeneration plants have been modelled in this study: CFB steam boiler and a back pressure turbine; Grate fired steam boiler and a back pressure turbine; Hot water boiler; Evaporative gas turbine cycle with a grate fired steam boiler and a back pressure turbine; Evaporative gas turbine cycle with a hot water boiler; and Evaporative gas turbine cycle with a hot water boiler and flue gas condensation. The calculations have been performed using a simulation program, the ASPEN PLUS. The marginal power efficiency for topping combustion using LPG is quite high. For the CFB steam boiler and grate fired steam boiler, about 46-51 % of the LPG fuel energy is converted to power. The power to heat ratio is gradually increased at part load of the plants. The  More>>
Authors:
Eidensten, L; Yan, Jinyue; Svedberg, G [1] 
  1. Royal Inst. of Tech., Stockholm (Sweden). Dept. of Heat Technology
Publication Date:
Mar 01, 1993
Product Type:
Technical Report
Report Number:
NUTEK-VK-93-19
Reference Number:
SCA: 092000; 200103; PA: SWD-93:007445; EDB-94:017597; NTS-94:008788; ERA-19:006425; SN: 94001129772
Resource Relation:
Other Information: PBD: Mar 1993
Subject:
09 BIOMASS FUELS; 20 FOSSIL-FUELED POWER PLANTS; WOOD-FUEL POWER PLANTS; COGENERATION; GAS TURBINES; BOILERS; ENERGY EFFICIENCY; PEAT; COMBINED CYCLES; COMPUTERIZED SIMULATION; THERMODYNAMIC CYCLES; 092000; 200103; COMBUSTION; WASTE-FUELED SYSTEMS
OSTI ID:
10117132
Research Organizations:
Swedish National Board for Industrial and Technical Development (NUTEK), Stockholm (Sweden)
Country of Origin:
Sweden
Language:
Swedish
Other Identifying Numbers:
Other: ON: DE94730413; CNN: Project NUTEK-566-031; TRN: SE9307445
Availability:
OSTI; NTIS
Submitting Site:
SWD
Size:
31 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Eidensten, L, Yan, Jinyue, and Svedberg, G. System study of externally fired gas turbines in different applications; Systemstudie av hetluftturbiner i olika tillaempningar. Sweden: N. p., 1993. Web.
Eidensten, L, Yan, Jinyue, & Svedberg, G. System study of externally fired gas turbines in different applications; Systemstudie av hetluftturbiner i olika tillaempningar. Sweden.
Eidensten, L, Yan, Jinyue, and Svedberg, G. 1993. "System study of externally fired gas turbines in different applications; Systemstudie av hetluftturbiner i olika tillaempningar." Sweden.
@misc{etde_10117132,
title = {System study of externally fired gas turbines in different applications; Systemstudie av hetluftturbiner i olika tillaempningar}
author = {Eidensten, L, Yan, Jinyue, and Svedberg, G}
abstractNote = {An attractive way to use the externally fired gas turbine technology is to put this type of gas turbine in front of a conventional boiler for steam or hot water. The gas turbine then acts as a ventilator with high temperature preheated combustion air. The goal for this report has been to investigate by system studies a number of different cogeneration applications for externally fired gas turbines. The following types of biomass fueled cogeneration plants have been modelled in this study: CFB steam boiler and a back pressure turbine; Grate fired steam boiler and a back pressure turbine; Hot water boiler; Evaporative gas turbine cycle with a grate fired steam boiler and a back pressure turbine; Evaporative gas turbine cycle with a hot water boiler; and Evaporative gas turbine cycle with a hot water boiler and flue gas condensation. The calculations have been performed using a simulation program, the ASPEN PLUS. The marginal power efficiency for topping combustion using LPG is quite high. For the CFB steam boiler and grate fired steam boiler, about 46-51 % of the LPG fuel energy is converted to power. The power to heat ratio is gradually increased at part load of the plants. The main reason for this is that the externally fired gas turbine is running at full load even at part load for the biomass fired boiler. When an evaporative gas turbine cycle is introduced the total plant efficiency is markedly decreased, but at the same time the power to heat ratio is drastically increased. It is shown that if the externally fired gas turbine is coupled to the biomass fired boiler in such a way that the gas turbine exhaust gas is used as combustion air in the boiler, then it is very hard to optimize both the externally fired gas turbine cycle and the cycle coupled to the boiler at the same time. This is specially true for the evaporative gas turbine cycle. 10 refs, 13 figs, 4 tabs}
place = {Sweden}
year = {1993}
month = {Mar}
}