Adhikari, Surya PrasadParajuli, Laxmi2025-12-292025-12-292025-12https://hdl.handle.net/20.500.14540/25479Nanofluids and turbulators have attracted considerable attention as they enhance heat transfer. Experimental studies were conducted utilizing a helical coil turbulator along with CuO-Al2O3-water hybrid nanofluid and CuO-water nanofluids on a counter flow concentric heat exchanger.enNanofluidsturbulatorsThesis