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KMID : 0371819960280040390
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Nuclear Engineering and Technology
1996 Volume.28 No. 4 p.390 ~ p.396
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Development of Piping Analysis Procedure of a PWR Surge Line for Stratified Flow
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Y.J. Yu
J.H. Jheon/K.S. Yoon/S.H. Park/and D.H. Kim
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Abstract
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Piping Systems are usually designed for thermal expansion loads based on uniform temperatures at each cross section. However, in lines with low flow rates such as surge lines and spray lines, large transverse temperature gradients have been observed, resulting in too types of additional thermal stresses : (1) local thermal gradient stresses which are independent of routing and supports and (2) gross bending stresses due to induced pipe curvature which are routing and support system dependent. This paper presents a simplified method for analyzing a PER surge line for stratified flow.
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