RT Web Page SR Electronic(1) ID 952793 A1 D. Brian Spalding T1 Unsteady operation YR 2016 FD 2016-03-28 NO unsteady operation, PB Begell House Inc. PP New York DO 10.1615/hedhme.a.000093 RD 2025-04-29 UL https://hedhme.com/content_map/?article_id=93&link_id=9527 WT HEDH Multimedia - Heat Exchanger Design Handbook, Multimedia Edition WP 2016-03-28