Industrial furnace is very important production equipment for industrial enterprises. Its performance will directly affect the efficiency and effectiveness of enterprises in manufacturing industry, even change the competitive advantage of the organization. To achieve more high quality and synergy, there is a need to have an integrated industrial furnace system that may compose of industrial furnaces, network, computer automatic control, intelligent software, and decision support technical. The integrated industrial furnace system takes the place of the traditionally single and dummy industrial furnace gradually. The importance of the integrated industrial furnace system to the enterprise is increased dramatically. With the change of market focus from production-orientation to customer-orientation, more and more companies realize the importance of the strategy of market segment and position. ¡§The small market segment¡¨ and ¡§unease of standardization¡¨ (high customization) are major characteristics in the industrial furnace industry. Therefore, the market and position strategy is the critical successful factor for the furnace industry in addition to technical excellence. Taiwanese industrial furnace companies are becoming global business recently. This research will focus on exploring the market and position strategy of furnace industry from a global perspective. This research will combine qualitative and quantitative methods. First, we will adopt literature review, in-depth interview, and focus-group interview with suppliers, customers, scholars, market analysts, and economic officials to develop two measure instruments: the supplier strategy measure and customer preference and selection criterion measure. Second, we will survey via questionnaires, and test reliabilities and validities of the both measures conscientiously. Finally, we formally mail validated questionnaires to suppliers and customers in the industrial furnaces industry. Based on multivariate analysis, factor analysis, cluster analysis, and multi-dimensional scaling, we will provide insights and suggestion about integrated industrial furnace system industry: 1.The strategy patterns of industrial furnace suppliers 2.The selection criterion of industrial furnace in a broad customer perspective 3.The grouping of customers and supplier in the integrated industrial furnace system industry. 4.The perceptual map of major suppliers in the integrated industrial furnace system industry 5.The strategy, market segment, and position current analysis and future suggestions

Industry is heavily dependent on the process of combustion and with a projected rapid increase for the demand of combustion-derived energy it is imperative to expose a new age of engineering professionals to the discipline of combustion engineering. One purpose of this study was to modify an existing scaled-down industrial furnace and to retrofit it with the ability to interchange burners for academic application and combustion testing. A number of available industrial burners are presented and their qualities and drawbacks discussed. The modification of an existing scaled-down industrial tunnel furnace is proposed in this work with the objective of providing users with exposure to the control and safe operating strategies associated with industrial combustion. The furnace system simulates a square-shaped tunnel geometry commonly found in industrial applications. A single nozzle mix burner is mounted along the furnace axis and operated with supporting equipment such as a burner control safeguard, a gas train, and an air supply. Details of the furnace are provided in this work. The concept of radiative heat transfer within a combustion enclosure is demonstrated through furnace simulation with Hottel’s Zone Method. / Thesis (Master, Chemical Engineering) -- Queen's University, 2010-07-19 09:50:22.797

Orientador: Rubens Maciel Filho / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica / Made available in DSpace on 2018-08-11T05:06:17Z (GMT). No. of bitstreams: 1 DiazMateus_FabianAndrey_M.pdf: 2380896 bytes, checksum: be3b7c2cb01810009ddbc674d0b696e6 (MD5) Previous issue date: 2008 / Resumo: Neste trabalho é desenvolvida a modelagem matemática e a simulação computacional de um forno para processos de conversão térmica de frações pesadas de petróleo. O modelo cinético das reações de conversão é tomada de Sugaya (1993) a qual consta de uma reação irreversível de primeira ordem com 9 lumps reacionais e 24 pseudocomponentes. Os 24 pseudocomponentes são caracterizados e suas propriedades são calculadas mediante diferentes correlações e métodos encontrados na literatura. À medida que a carga avança pela tubulação do forno, a reação ocorre gerando quantidades maiores de componentes leves alterando as condições de fluxo como decorrência de alterações físico-químicas. Estes efeitos são levados em consideração na modelagem desenvolvida. O estado da mistura é verificado para cada passo de integração mediante a equação Soave Redlich Kwong. No caso de escoamento bifásico, as propriedades do líquido e do vapor são calculadas para determinar o regime de escoamento e calcular o Holdup. Este parâmetro permite estimar as propriedades de transporte, os coeficientes de transferência e a perda de carga. Inicialmente é simulada uma unidade piloto de craqueamento térmico. Esta unidade consta de uma serpentina aquecida isotermicamente, fato pelo qual só balanço de massa é integrado. O programa encontra as constantes cinéticas mediante um algoritmo Newton ¿ Raphson, cuja função objetivo é a diferença entre a conversão calculada e a conversão medida. Finalmente o forno industrial é simulado. Balanços de massa, momento, energia e temperatura de parede são integrados. Os resultados obtidos apresentam boa concordância com os dados do forno 23H ¿ 1 (Refinaria Presidente Bernardes, Cubatão) para craqueamento térmico. Deposição de coque na tubulação é avaliada para analisar o comportamento do processo. O programa desenvolvido permite o estudo do processo de craqueamento térmico para processos de conversão térmica como o coqueamento retardado e visco-redução. Novos parâmetros operacionais podem ser estudados, diferentes cargas e estratégias de controle podem ser simuladas e avaliadas com o software desenvolvido / Abstract: The mathematical modeling and the computational simulation of a process furnace for thermal conversion of heavy oil fractions is developed in this work. Kinetics of conversion reactions is from Sugaya (1993). It is based in a first order irreversible reaction with 9 lumps and 24 pseudocomponents. The 24 pseudocomponents are characterized and their properties calculated by different correlations and methods available in the literature. As walks through the furnace tubes, the feed, initially liquid, reacts generating light fractions and gas. The state of the mixture is checked for each integration step by a subroutine based on the Soave Redlich Kwong equation. When two phases are flowing, properties of the liquid and vapor are calculated to determine the flow regime and the holdup. This parameter allows to calculate the transport properties and the heat transfer and pressure drop coefficients. Initially, a thermal cracking pilot plant is simulated. This unit is formed by a reactor coil that is isothermally quenched; consequently, only mass balance is integrated. The program finds the kinetic constants by a Newton ¿ Raphson algorithm whose objective function is the difference between the calculated and measured conversion. Finally, an industrial furnace is simulated. Mass, momentum, wall temperature and energy balances are integrated. Results show good agreement whit the data reported from the industrial furnace 23-H-1 (Refinery Presidente Bernardes, Cubatão) for thermal cracking. Coke deposition in tubes is tested to analyze the performance of the process. The program developed in this work allows an insight study of thermal cracking processes such as delayed coking and visbreaking. New operational parameters, different feeds, control strategies and many other parameters can be studied. / Mestrado / Desenvolvimento de Processos Químicos / Mestre em Engenharia Química