ATAC i system - Energimyndigheten

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har värmeöverföring och insugstemperatur justerats i simuleringen för att ge en god överensstämmelse i tryck under kompressionsslaget (innan förbränningen). Det bör påpekas att temperaturen för mätningen är uppskattad och i själva verket inte uppmätt. Den är bestämd genom att anta en temperatur då insugsventilen stänger och sedan beräkna den utifrån ideala gaslagen under kompression, förbränning och expansion. Pressure [bar] 70 60 50 40 30 20 Mea. Sim. Kin20−C8H18 330 340 350 360 370 380 CAD Temperature [°C] 1600 1400 1200 1000 800 600 Kin20−C8H18 Mea. Sim. 320 340 360 380 400 420 CAD Figur 4 Tryck och temperatur. Notera att temperaturen för mätningen är uppskattad. Mätningen är också medelvärdesbildad av ca 100 cykler.
Termodynamiska data för luft-vattenblandningar vid höga tryck 2002-02-22 Projekt nr: P11762-2 Projektledare: Professor Jinyue Yan Kemiteknik/Energiprocesser, KTH, 100 44 Stockholm tel 08-790 6528, fax 08-723 0858, yanjy@ket.kth.se Projektdeltagare: Xiaoyan Ji, Jinyue Yan, Mats Westermark Etappens varaktighet: 2001-09-01 till 2003-03-31 Beviljade medel: 1 554 000 kr Referensgrupp: Geir Owren, NTNU (fadder), Lars Sjunnesson, Sydkraft (fadder), Rolf Gabrielsson, Kontaktperson Volvo Aero Corporation Projektbeskrivning (Project description): Evaporative gas turbine (EvGT), or Humid Air Turbine (HAT) cycle, has features of high efficiency, low cost and low emissions because of the use of evaporative humidification in combination with integration of heat recovery. Reliable data for the thermophysical properties of the air-water mixture are necessary for the design of the EvGT systems. However, there is a significant gap in the knowledge of thermodynamic properties of air-water mixtures at high pressures. The primary goal of this project is to investigate thermodynamic properties of air-water mixtures at high pressures (up to 40 bar). The results of the project will provide appropriate methods to calculate the properties of water-air mixture, which is very important for the development and demonstration of the EvGT technology. This project is also of high scientific value to fill in the knowledge gap of air-water mixture properties at high pressures. Projektets mål (Project goal): The primary goal of the whole project is to develop a more accurate method for calculation of water-air mixtures at high pressure (up to 40 bar). The reliable data will be used for design of EvGT systems. Another goal is to fill in the knowledge gap of thermophysical data for water-air mixture at high temperature and pressure. The existing data and calculation methods for calculating thermophysical properties of the water-air mixture were reviewed. A new model was proposed and verified by the abundant experimental data of the nitrogen-water and oxygen-water systems in order to predict thermodynamic properties of the water-air mixture reliably. Prediction results of the proposed model were compared with the available experimental data and those calculated with other models. The whole project has planned for four years. In this phase (etapp 2) of the second period of 1.5 years, following tasks are performed: 1. Follow the R&D in this area and make complete survey of existing data and methods for the air-water system. Meanwhile, the available experimental data for the nitrogen-water and oxygen-water systems were also surveyed.
Page 1 and 2: ATAC i system Projekt nr: P10025 -
Page 3: I Figur 2 visas ett exempel där 10
Page 7 and 8: 2002-02-22 liquid components were a
Page 9 and 10: Dimensionering av befuktare för ev
Page 11 and 12: Slutsatser. Utfall i relation till
Page 13 and 14: Rekuperatorer för Gasturbinanlägg
Page 15 and 16: Blomgren) har skett här och viss a
Page 17 and 18: Expertsystem baserat på ANN: Metod
Page 19 and 20: Slutsatser. Utfall i relation till
Page 21 and 22: med en vanlig luftpump (cykel, bil)
Page 23 and 24: Biobränslebaserad småskalig kraft
Page 25 and 26: These findings together with the di
Page 27 and 28: stirlingmotorer för andra ändamå
Page 29 and 30: Projektets mål (Project goal): Fö
Page 31 and 32: Analys och optimering av avancerade
Page 33 and 34: Biomass and Natural Gas. Increased
Page 35 and 36: cycles, repowering of old steam uni
Page 37 and 38: Systemstudier av kraftcykler med Ch
Page 39 and 40: compensated by the steam cycle. The
Page 41 and 42: Development of tools for the design
Page 43 and 44: High Pressure Catalytic Combustion
Page 45 and 46: combustion catalysts. The incipient
Page 47 and 48: Project goal: The overall objective
Page 49 and 50: pressure ratio of 2.7. Above a pres
Page 51 and 52: Förbränning för koldioxidfria pr
Page 53 and 54: 3 candidate, the measurement strate
Page 55 and 56:
Dynamisk processimulering för opti
Page 57 and 58:
Slutsatser. Utfall i relation till
Page 59 and 60:
Nedan anges viktiga delmål, dvs de
Page 61 and 62:
Behov av fortsatta forskningsarbete
Page 63 and 64:
Katalytisk förbränning av förgas
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ATAC i system - Energimyndigheten

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