Diseño de instalaciones de ensayo para CO2 supercrítico

Chomon Elosua, Álvaro (2021). Diseño de instalaciones de ensayo para CO2 supercrítico. Thesis (Master thesis), E.T.S.I. Industriales (UPM).

Description

Title: Diseño de instalaciones de ensayo para CO2 supercrítico
Author/s:
  • Chomon Elosua, Álvaro
Contributor/s:
  • Rodríguez Rivero, Rocío
  • Simms, Nigel
Item Type: Thesis (Master thesis)
Masters title: Ingeniería Industrial
Date: September 2021
Subjects:
Freetext Keywords: Pressure Vessel, Creep testing, Fatigue testing, High temperature/High pressure corrosion
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería de Organización, Administración de Empresas y Estadística
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The world’s energy demand is steadily increasing and so are its greenhouse gas emissions. Supercritical CO2 power cycles are technologies that could help tackle these issues by generating energy more efficiently and also capturing carbon dioxide (and storing it after operation), and thus greatly reducing greenhouse gas emissions. The main challenges for this technology are the high operating pressures, temperatures and fluid conditions required to obtain such high efficiencies. This thesis aims to address these by designing a test rig to study the mechanical properties of candidate materials(in realistic operating environments) for use in direct-fired supercritical CO2 turbines. An approach has been adopted which combines design by rules (using codes and standards), with design by analysis (using finite element analysis and relevant software). Appropriate materials have been selected to fully design a suitable pressure vessel, as well as creep and fatigue testing machines. Initially, a pressure vessel has been designed that is able to hold a sample at 900 ºC and with an inner pressure of 30 MPa. This pressure vessel design has been adapted to include a creep testing machine capable of testing samples at 900 ºC, 30 MPa pressure and able to generate over 150 MPa of stress on samples. Finally the pressure vessel design has been adapted to operate in conjunction with a fatigue testing machine. An appropriate fatigue testing machine has been selected and modifications identified to allow to operate at 900 ºC and 30 MPa pressure. Such novel test facilities would enable the combined mechanical properties and corrosion resistance of candidate materials to be investigated in realistic exposure conditions before use in direct-fired sCO2 demonstration plants.

More information

Item ID: 69052
DC Identifier: https://oa.upm.es/69052/
OAI Identifier: oai:oa.upm.es:69052
Deposited by: Biblioteca ETSI Industriales
Deposited on: 10 Jan 2022 15:17
Last Modified: 10 Jan 2022 15:18
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