Low-frequency vibration for fouling mitigation and intensification of thermal performance of a plate heat exchanger working with CuO/water nanofluid

•Thermal performance of CuO/water nanofluid in heat exchanger is investigated.•Pressure drop is measured inside the nanofluid loop.•Low frequency vibration was used to mitigate the fouling rate.•Vibration intensified the thermal performance of the system as well.