IJSRSET1732212 | 14 April 2017 | Accepted: 23 April 2017 | March-April-2017 [(2)2: 746-751] © 2017 IJSRSET | Volume 3 | Issue 2 | Print ISSN: 2395-1990 | Online ISSN : 2394-4099 Themed Section: Engineering and Technology 746 Experimental Investigation for the Determination of Characteristics of Nano Particles Using Nano Particle Analyser Kallalu Harika*, Tummala Likhitha, Samatham Madhukar, Sumith Kumar Mechanical Engineering, Vidya Jyothi Institute of Technology, Hyderabad, Telangana, India ABSTRACT Many investigations are being performed for usage of Nano particles in shell and tube heat exchanger for obtaining better results, as a part of determining the characteristics of Nano particles we need to know the size and thermal properties of the Nano particles. In this paper, we are determining the size and thermal properties such as conductivity, viscosity, electrode voltage, zeta potential for copper oxide and aluminum oxide using Horiba Nano Partica SZ -100 Nano particle analyzer. In this experiment 01mg of both the samples are mixed with 10ml of deionized water each and then it is placed in ultrasonic cleaning equipment for an hour and then tested in the Nano particle analyzer for determining the mentioned properties. Keywords: Nano Particles , Horiba Nano Partica SZ -100 , Ultrasonic Cleaner I. INTRODUCTION Nanoparticles are particles between 1 and 100 nanometers in size. In nanotechnology, a particle is defined as a small object that behaves as a whole unit with respect to its transport and properties. Particles are further classified according to diameter Ultrafine particles are the same as nanoparticles and between 1 and 100 nanometers in size, fine particles are sized between 100 and 2,500 nanometers, and coarse particles cover a range between 2,500 and 10,000 nanometers. Scientific research on nanoparticles is intense as they have many potential applications in medicine, physics, optics, and electronics. A. Definition of Nano Particles: The term "nano particle" is not usually applied to individual molecules; it usually refers to inorganic materials. A nano particle is defined as the smallest unit that can still behave as a whole entity in terms of properties and transport. In terms of diameter, fine particles cover a range between 100 and 2500 nanometers,[1] while ultrafine particles are sized between 1 and 100 nanometers. Nanoparticles may or may not exhibit size-related properties that are seen in fine particles. Despite being the size of the ultrafine particles individual molecules are usually not referred to as nanoparticles. Nanoclusters have at least one dimension between 1 and 10 nanometers and a narrow size distribution. Nano powders on the other hand are agglomerates of ultrafine particles, nanoparticles, or nanoclusters. Nano particle sized crystals are called nanocrystals. II. HISTORY OF NANO PARTICLES Although generally nanoparticles are considered an invention of modern science, they actually have a very long history. Specifically, nanoparticles were used by artisans as far back as the ninth century Mesopotamia for generating a glittering effect on the surface of pot.[2][3 Even these days, pottery from the middle ages and renaissance often retains a distinct gold or copper colored metallic glitter. This so called luster is caused by a metallic film that was applied to the transparent surface of a glazing. The luster can still be visible if the film has resisted atmospheric oxidation and other weathering.The luster originates within the film itself, which contains silver and copper nanoparticles, dispersed homogeneously in the glassy matrix of the ceramic glaze. These nano particles were created by the