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Keywords: IMTHUA
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Proceedings Papers

Proc. ASME. ICONE21, Volume 4: Thermal Hydraulics, V004T09A103, July 29–August 2, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICONE21-16570
...- Hydraulics Uncertainty Analysis (IMTHUA). The methodology comprehensively covers various aspects of complex code uncertainty assessment for important accident transients. It explicitly examines the TH code structural uncertainties by treating internal sub-model uncertainties and by propagating such model...
Proceedings Papers

Proc. ASME. ICONE17, Volume 3: Thermal Hydraulics; Current Advanced Reactors: Plant Design, Construction, Workforce and Public Acceptance, 405-413, July 12–16, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICONE17-75463
..., types of uncertainty sources considered, methods of assignment of uncertainty distribution or range to various parameters, approach to propagation of uncertainty, and the way the dynamic characteristics of TH codes are handled. The IMTHUA methodology, developed by the authors, is a hybrid approach where...
Proceedings Papers

Proc. ASME. ICONE16, Volume 3: Thermal Hydraulics; Instrumentation and Controls, 57-66, May 11–15, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ICONE16-48075
... Model Uncertainty Code Structure IMTHUA Thermal-Hydraulics System Code A successful treatment of model uncertainty results in an expression of uncertainty that includes the true value at some stated level of confidence. Code structure uncertainties (model uncertainty) are a crucial...