The College of Education for Pure Sciences, Department of Physics, discussed a master’s thesis on studying the effect of carbon nanoparticles on the efficiency of solar water heater performance.
The message presented by the researcher (Wassan Louay Jassim) included
Carbon nanoparticles were prepared using ultrasound technology to crush black carbon powder. The surface morphology of the as-prepared carbon black (CB) and carbon nanoparticles (CNPs) was studied using scanning electron microscopy (SEM). The particle size ranges from 100 nm to 400 nm for CB and from 10 nm to 100 nm for the prepared carbon nanoparticles.
 The prepared carbon nanoparticles, as well as carbon powder (each separately), were mixed with silicon glue with different weight ratios of 0.2, 0.1, 0.05 and 0.02 to form films. The optical properties of the prepared films were investigated by reflectance and optical absorption analyses. The prepared 0.05g of carbon nanoparticles as well as carbon powder was determined to be the best for solar coating due to its high efficiency in solar water heater manufacturing and then added to silicone glue. It was observed that the tank that was coated with the prepared carbon nanoparticles gives a higher water temperature of 4 degrees Celsius than the tank coated with carbon particles after one month of testing under the sun's irradiation.
The aim of the thesis: Preparation of carbon nanoparticles (CNPs) by sonication. The CNPs-based coating was tested and easily applied to the solar heater to verify its optical properties, evaluate its thermal performance and compare it with Carbon Black (CB).