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Process optimisation of a liquid sodium economiser circuit |
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| Affiliation: | 1. CEA Cadarache, DEN, DEC, F-13108 Saint-Paul-lez-Durance, France;2. CEA Cadarache, DEN, DER, F-13108 Saint-Paul-lez-Durance, France;3. AREVA-NP, 10 rue J. Récamier, 69456 Lyon Cedex 06, France;1. Área de Ingeniería en Recursos Energéticos, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186 Col. Vicentina, México, D.F., C.P. 09340, Mexico;2. Departamento de Sistemas Energéticos, Facultad de Ingeniería, Universidad Nacional Autónoma de México, Paseo Cuauhnáhuac 8532, 62550, Jiutepec, Mor., Mexico;1. Eletrobrás Termonuclear S.A. – Eletronuclear, Departamento GEI.T, Rua da Candelária, 65, CEP 20091-906, Rio de Janeiro, RJ, Brazil;2. Departamento de Engenharia Nuclear, Escola de Engenharia – UFMG, Av. Antônio Carlos, 6627-Pampulha, Belo Horizonte, MG, CEP 31270-901, Brazil;1. Department of Energy Engineering and Physics, Tehran Polytechnic University, 424 Hafez Ave., P.O. Box: 15875-4413, Tehran, Iran;2. Nuclear Science and Technology Research Institute, End of North Karegar Ave., P.O. Box: 14359-836, Tehran, Iran;1. Czech Technical University in Prague, Prague, Czech Republic;2. Research Centre Rez Ltd., Rez, Czech Republic;3. University of Ontario Institute of Technology, Oshawa, Canada |
| Abstract: | Economiser circuits in liquid sodium service are very common in sodium cooled fast reactor systems. Large amount of cooling in the order of 100 °C–450 °C differential temperature is common for the auxiliary liquid sodium systems such as sodium purification and impurity monitoring. A sodium to sodium heat exchanger as economiser, sodium to air heat exchanger as heat sink and electrical heater for reheating are the process equipment generally used for the liquid sodium economiser circuits. Since the specific heat transfer area and manufacturing cost for economiser heat exchanger and sodium to air heat exchanger are largely different, optimised parameters for economiser circuits with conventional heat transport medium will not hold good for liquid sodium economiser systems. An optimisation study was performed for liquid sodium economiser circuit for arriving at an optimum design by considering the technical and economical aspects with optimum energy wastage. |
| Keywords: | Sodium cooled fast breeder reactor Economiser circuit Sodium to sodium economiser heat exchanger Sodium to air heat exchanger Optimisation of economiser circuit |
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