JAYPAL MALI, GIRISH PATIL, PROF. A. R. ACHARYA, PROF. A. T. PISE. HEAT TRANSFER ENHANCEMENT WITH CENTRALLY HOLLOW TWISTED TAPE AND AL2O3WATER BASED NANOFLUID IN TUBULAR HEAT EXCHANGER. Int. j. innov. eng. res. technol. Published online March 27, 2021:1-7. Accessed October 26, 2025. https://repo.ijiert.org/index.php/ijiert/article/view/1242