RT Web Page SR Electronic(1) ID 957997 A1 D. Brian Spalding T1 Balance equations applied to complete equipment YR 2016 FD 2016-03-30 NO P-NTU method for PB Begell House Inc. PP New York DO 10.1615/hedhme.a.000097 RD 2025-04-26 UL https://hedhme.com/content_map/?article_id=97&link_id=9579 WT HEDH Multimedia - Heat Exchanger Design Handbook, Multimedia Edition WP 2016-03-30