GRD Journals- Global Research and Development Journal for Engineering | Volume 4 | Issue 7 | June 2019 ISSN: 2455-5703
Oscillating Heat Pipe & Synthesis of Nano Fluid Review Sushil More Department of Mechanical Engineering Zeal College of Engineering and Research Shubhankar Mhalim Department of Mechanical Engineering Zeal College of Engineering and Research
Kalyan Pashilkar Department of Mechanical Engineering Zeal College of Engineering and Research
Suraj Mhaskar Department of Mechanical Engineering Zeal College of Engineering and Research
Prof. D. P. Kamble Department of Mechanical Engineering Zeal College of Engineering and Research
Abstract This paper present study of procedure for synthesis of nano fluid. Nanofluid is the colloidal mixture of base fluid (water, glycol etc.) and nano particles (1-100nm). It is the new concept of heat transfer for different engineering applications & various fields. This paper summarizes the recent research in studies on heat transfer of nanofluid. The TEM photograph of cuO is given to determine the stability & regularity of suspension. This paper presents the brief range of current and future applications in various field like mechanical, electrical, transportation, solar absorption & biomedical field. Keywords- Synthesis of Nanofluids, Applications of Nanofluids, Nano Fluid Synthesis, Oscillating Heat Pipe
I. INTRODUCTION Nowadays, there is increase in development of electronic industries but the major problem occur in electronic component is excessive heating of components. This excessive heat can be extract by using heat pipes and oscillating heat pipes. In heat pipes different working fluids are used such as nanofluids, hybrid nanofluids, and water. Nanofluid is the improvement in nanotechnology, the synthesis of particles size upto certain nanometers. Mixing of nanoparticles in base fluid is called nanofluid. Suspension of nanoparticle improves thermal conductivity of fluid. Different particle material are used to prepare nanofluid such as Al2O3, CuO, SiC, TiC, Ag, Cu & Fe. Carbon nanotubes also used their thermal conductivity is extremely high. In nanofluid water, ethylene glycol & engine oil are used as base fluid, to increase the stability of nanoparticles some amount of additives is added in base fluid. The researchers are working on different design of heat pipe. It consists of different sections like evaporator, condenser& adiabatic section which connects condenser & evaporator section. A. Preparation of Nanofluid There are generally two different ways to produce nanofluid, two-step method & one-step method. In the two-step method, in the first step nanoparticles are prepared and the second step is the mixing the nanoparticles & base fluid. Two-step method is beneficial for mass production of nanofluids, by using the method of inert gas condensation nanoparticles can be made in large amounts. The main difficulty of the two-step method is the nanoparticles forms group of particle due to that nanoparticle unable to properly mix with base fluid. In one-step method, the making of nanoparticles and properly mixing of nanoparticles in the base fluid into a single step. The most common methods is direct evaporation one-step method, in this method the nanofluid is made by the condensation of gas phase nanoparticle in the base fluid. In one-step method, nanoparticle properly mix with base fluid as compared to two-step method. But the main drawback of one-step method is not suitable for mass production. B. Working of Oscillating Heat Pipe (OHP) Oscillating heat pipe is a heat pipe which is introduced by Akachi in 90’s. The operation of OHP is depends upon oscillating/pulsating motion of working fluid inside the tube. When high temperature is sense by one end, due to high temperature vapour pressure of working fluid is increases causes bubble formation in evaporator section, this pushes the liquid to the low temperature end, which increases the pressure deference between both ends because of condensation at low temperature end, due to interconnection of the tubes, motion of slug &vapour bubbles from one section to other section is takes place.
All rights reserved by www.grdjournals.com
19
Oscillating Heat Pipe & Synthesis of Nano Fluid - Review (GRDJE/ Volume 4 / Issue 7 / 005)
II. LITERATURE REVIEW 1) Saffa Riffat (corresponding author) and Xiaoli Ma et.al (2018) 1:- This paper is about overview of progress in heat pipe and there various applications. First part is about the new development and research of specification and different types of heat pipe. Second type is overview of application of heat pipe in various fields. And third part contains the optimisation in design and numerical method used in heat pipe research. 2) Taylor & Francis et.al (2015)2:-This paper contains the study of thermal analysis of piston cooling system using reciprocating heat pipe. The experimental result show that the piston ring groove temperature can be significantly reduced using heat pipe cooling technology, which could contribute to an increase in engine thermal efficiency and a reduction in environmental pollution. 3) Leonard L. Vasiliev et.al (2004)3:- This research paper is short overview of the study of heat pipe contains the data from FSU which testifies that the heat pipes are very efficient for transferring the heat which can be used in thermal links and heat exchangers in various system. 4) Luis Santiago Paris Londoùo et.al (2005)4:- This paper is the experimental study of design, construction of 2phase thermosyphon heat exchanger where water is used as working fluid. The results obtained by tests fits well with theoretical. In practice there is a thermal loss due to non-adiabatic heat exchanger. According with tests, the prototype built could recover 26% of maximum energy transported by gas stream. 5) Yimin Xuan , Qiang Li et.al (1999)5:- This paper is contain the procedure of preparation of nanofluid. It contains the colloidal mixture of nano particles and base fluid which is water. In this there is introduction of theoretical study of thermal conductivity of nano fluid. Some factors like the volume fraction, dimensions, shapes and properties of the nanoparticles are studied. 6) Jaafar Albadr, Satinder Tayal, Mushtaq Alasadi et.al (2013) 6:- This paper presents the study of heat transfer through heat exchanger using aluminium oxide at different cons. The nano partials used are of 30nm. The results show that the convective heat transfer coefficient of nanofluid is slightly higher than that of the base liquid at same mass flow rate and at same inlet temperature. The heat transfer coefficient of the nanofluid rises with an increase in the mass flow rate. 7) Purna Chandra Mishra, Santosh Kumar Nayak1, Pratik Mitra, Sayantan Mukherjee, Somjit Paria et.al (2013) 7:- This paper presents the applications of nanofluids in automobiles an overview on current research. In this the different application of nanofluids in automobile are stated such as coolant, fuel additives, lubricants and shock absorber based on current research. 8) Aadarsh Mishra et.al (2014)8:- This paper contains the analysis of nanofluids and their base liquid. Also the challenges and future application of nano fluids have been introduced in this paper. It was observed that there are inconsistencies in the results published in open literature by many researchers. Few researchers’ reported the inconsistencies between model and experimental results of thermal conductivity of nanofluids. 9) Wei Yu andHuaqing Xie et.al (2012)9:- This paper is a review on the preparation, stability mechanism, and various application of nano fluids. This paper contains the study of process to form a nano fluids and the broad range of application in various field such as mechanical, electronic, biomedical.
All rights reserved by www.grdjournals.com
20
Oscillating Heat Pipe & Synthesis of Nano Fluid - Review (GRDJE/ Volume 4 / Issue 7 / 005)
III. CONCLUSION Heat pipes are most widely used as heat exchanger device to extract the heat from any mechanism. Use of nanofluid in oscillating heat pipe can increase the efficiency. Nanofluid of different cons can be formed for different application. Heat pipe have wide range of application in various fields such as biomedical, automobile, electronics, transportation, etc.
REFERENCE [1] [2] [3] [4] [5]
Yimin Xuan, Qoan Li, Heat Transfer Enhancement of Nanofluids, School of Power Engg, Nanjing University of Science & Technology , Nanjing 210094, china. jaafar albadr, Satinder Tayal, Mushtaq Alsadi, Heat transfer Through Heat Transfer Using Al2O3 nanofluid at Different Concentrations, Maharshi Markandehwar University, Mullana, Haryana, India. Luis Santiago Paris LondoĂąo, Andres Felip Duque Delgado , Model Design Construction and Test a Prototupe of Heat Exchanger Using Two-Phase Thermosyphone, Universidad EAFIT,Medellin, Ant., Colombia. Saffa Riffat (corresponding author) and Xiaoli Ma, Recent Development in Heat Pipe Technology & Applications, Institute of Sustainable Energy Technology, School of Built Environment, University of Nottingham NG7 2RD, UK. Diksha Ashok Chavan, On The Design Fundamentals of Pulsating Heat Pipes, Indira College of Engg & Management, pune, India.
All rights reserved by www.grdjournals.com
21