Thongdaeng S, Pipatpaiboon N, Rittidech S. Influence of void fraction and filling ratio on heat transfer characteristics of a packing bed thermosyphon (PBTP). Asia Pac J Sci Technol [internet]. 2017 Apr. 12 [cited 2026 Apr. 22];19(1):75-81. available from: https://so01.tci-thaijo.org/index.php/APST/article/view/82898