TY - JOUR TI - Comparative assessment of novel hooped and conventional Pelton wheel turbine runner using downcomer nozzles of different materials and exit diameter through experimental investigations AU - LAKDAWALA, H.N. AU - PATEL, V.K. AU - CHAUDHARI, G.C. AU - CHANNIWALA, S.A. AU - PATEL, T.R. JO - Sigma Journal of Engineering and Natural Sciences PY - 2026 VL - 44 SP - 501 EP - 527 DO - 10.14744/sigma.2026.1995 ER -