PERFORMANCE ANALYSIS OF HELICAL COIL AND INNOVATIVE TUBES HEAT EXCHANGER WITH PHASE CHANGE MATERIALS: NUMERICAL AND EXPERIMENTAL STUDY. Spec. Jour. of Inno. Ref. and Dev. [Internet]. 2025 Aug. 15 [cited 2026 May 13];42:15-27. Available from: https://sjird.journalspark.org/index.php/sjird/article/view/1281