TY - JOUR T1 - Optimization of solar water heating absorber riser with header tube using RSM and CFD simulation JO - Matéria (Rio de Janeiro) A1 - Narayanasamy, Sivakumar A1 - Iruthayasamy, George A1 - Perumal, Ramesh A1 - Ramasamy, Kalaivanan SN - 1517-7076 UL - 10.1590/1517-7076-RMAT-2024-0850 VL - 30 Y1 - 2025 PB - Brasil ER -