PEDRO ERNESTO UMBEHAUN

Resumo

Possui graduação em Engenharia Mecânica pela Fundação Educacional Inaciana Padre Sabóia de Medeiros -FEI (1985), mestrado em Tecnologia Nuclear pela Universidade de São Paulo (2000) e doutorado em Tecnologia Nuclear pela Universidade de São Paulo (2016). Atualmente é Tecnologista Sênior no Instituto de Pesquisas Energéticas e Nucleares da Comissão Nacional de Energia Nuclear. Tem experiência na área de Engenharia Nuclear, com ênfase em Transferência de Calor, atuando principalmente nos seguintes temas: termo-hidráulica de núcleo de reatores nucleares, engenharia nuclear, reatores de pesquisa, e reator nuclear de potência. Atualmente professor convidado na Escola Politécnica da Universidade de São Paulo nas disciplinas Termohidráulica de Sistemas de Geração de Potência I e II. (Texto extraído do Currículo Lattes em 4 maio 2023)

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Agora exibindo 1 - 3 de 3
  • Resumo IPEN-doc 24577
    Determination of pressure loss coefficients in the elements of the IEA-R1 reactor nuclei
    2017 - CASTRO, A.J.A. de; UMBEHAUN, P.E.
    The flow distribution in the different elements that compose the core of the IEAR1 reactor is one of the main parameters for its thermo-hydraulic analysis. Currently this distribution is estimated with the code "FLOW" that uses existing correlations in the literature for the estimation of the singular and distributed pressure losses. In order to validate the code, a test bench was set up to survey the load loss in the elements that make up the reactor core for different levels of flow in the elements.
  • Resumo IPEN-doc 24576
    Comissioning of the IEA-R1 nuclear reactor new heat exchanger
    2017 - CASTRO, A.J.A. de; UMBEHAUN, P.E.; CARVALHO, M.R.
    This work presents results on the commissioning of the new heat exchanger of the IEA-R1 nuclear reactor in the occasion of its operational power upgrade from 2 MW to 5 MW, in comparison to the values calculated in the project of IESA Design and Equipments Company. This reactor is a swimming pool type, light water moderated and with graphite reflectors, used for research purposes and medical radioisotopes production. During monitoring procedures, issues were observed on the reactor operation at 5 MW mainly due to the ageing of the reactor’s oldest heat exchanger (TC-A) and excessive vibrations at high flow rates on the other installed heat exchanger (TC-B). So it was decided to provide a new IESA heat exchanger with 5 MW capacity to definitely substitute the TC-A heat exchanger. The results show that the IEA-R1 nuclear reactor can be operated safely and continuously at 5 MW with the new IESA heat exchanger.
  • Resumo IPEN-doc 13628
    Comissioning of the heat exchanger for the research nuclear reactor IEA-R1
    2008 - CASTRO, ALFREDO J.A. de; CASSIANO, DOUGLAS A.; UMBEHAUN, PEDRO E.; CARVALHO, MARCOS R. de; FRAJNDLICH, ROBERTO