To cite this article Gurmen Ozcelik T. Investigation of glycerol-Ni(NO3)26H2O /perlite composites as form stable phase change materials.

The temperature control of the agricultural greenhouse is important issue and to sudden temperature, changes during the growing plants are one of the problems that need to be controlled. Temperature control can be achieved in greenhouses established with the novel technological systems, but these systems are expensive systems that requires technical knowledge and infrastructure. In this study, a seasonal thermal energy storage using Phase Change Material (PCM) composite material investigated to regulate day time soil temperature in the greenhouse. The overall purpose of the research was to identify the mechanisms of heat transfer in soil covered by phase change materials. The PCM was encapsulated in to expanded perlite and soil temperature with and without using the PCM were compared. By using the experimental data, a mathematical model that can simulate the temperature of the soil in the greenhouse was developed According to the results, the research included experimental works as well as theoretical analysis.

ABSRACTPlating is used to decorate objects, for corrosion inhibition, to improve solder ability, to harden, to improve wear ability, to reduce friction, to improve paint adhesion, to alter conductivity and for other purposes. Electroless plating is a fundamental step in the metal plating on the plastic. In this study, the electroless copper plating on Acrylonitrile butadiene styrene (ABS) was investigated. The effects of the ionic liquids as catalyst, plating time and sanding paper size were investigated on metal plating. Experiments were carried out with two different types of ionic liquids: EMIC and DCA and with 120, 240, 320 and 500 grit sandpaper by applying sand attrition process, and constant bath temperature as 60 0 C with 60-150 minutes of deposition times. Due to the results, the copper plating on ABS plastic was a success. The surface morphology and amount of deposit analysis were performed using the Fischerscope X-Ray XDL-B System, X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Hence, it is determined that the maximum amount of deposit is obtained in the sample which EMIC is used as catalyst with 150 min deposition time and 500 grit sandpaper size.