Heat Transfer Charactericstic of an Evaporator with Cuo Refrigerant Based Nanofluids as Working Fluid

Only available on StudyMode
  • Download(s) : 151
  • Published : September 19, 2012
Open Document
Text Preview
“I hereby admit that have read this report and from my point of view this report is enough in term of scope and quality for purpose for awarding Bachelor of Degree in Mechanical Engineering (Thermal-Fluid)”

Signature Supervisor Name I Date

: …………………………. : …………………………. : ………………………….

Signature Supervisor Name II Date

: …………………………. : …………………………. : ………………………….

ii HEAT TRANSFER CHARACTERICSTIC OF AN EVAPORATOR WITH CuO REFRIGERANT BASED NANOFLUIDS AS WORKING FLUID

MUHAMMAD IZZAT BIN ABD HALIM

This report presented to fulfill the requirement in term to obtain Bachelor of Degree in Mechanical Engineering (Thermal-Fluid)

Fakulti Kejuruteraan Mekanikal Universiti Teknikal Malaysia Melaka

MAY 2012

iii ADMISSION

“I admit this report has been written by me myself except for some quotation that has been noted well for each of them”

Signature

:……….……………………… :……………………………….

Author Name :……….……………………… Date

iv DEDICATION

This report is dedicated to my beloved parents Abd Halim bin Ismail and Zarina bt Ahmad .

v APPRECIATION

Thanks to Allah swt upon the completion of this report. Not forgetting my parents who always support me no matter what obstacles came through. Also special thanks to my supervisor, Pn. Fadhilah bt Shikh Anuar in guiding me along this report writing and project computation. Not to mention, Nicholas Lian ak Mujah, my classmate who help me a lot in completing this project.

Last but not least, all friends and family especially my housemates who never give up in supporting me towards the completion of this report. Really appreciate all the helps and supports.

vi ABSTRACT

Nowadays, refrigeration systems have become one of the most important systems for people’s daily lives. In Malaysia, it can be seen that nearly each of the house has a room air conditioner installed in it. Based from some research, the use of air conditioners consumes about 40 % of the total of electricity used in a house. This means that the use of air conditioners consumes a lot of electricity. With the potential of the nanoparticles that have been developed in recent years, many researchers believed that nanoparticles can enhance the thermal conductivity and the dynamic viscosity of the conventional basefluid, thus increasing the heat transfer rate and the energy consumption could be reduced. In this project, the effect of the suspended nanoparticles, CuO, into the refrigerant, which can be called as nanorefrigerant, is being investigated using the mathematical modeling in terms of thermal conductivity, viscosity and heat transfer rate of the nanorefrigerant. Simulation is needed in this project to verify the Mathematical Modeling results in order to have reliable data/output. The ANSYS CFD simulation is the preferred simulation software to be used in this project.

vii ABSTRAK

Pada masa kini, sistem penyejukan telah menjadi salah satu sistem yang paling penting untuk kehidupan seharian masyarakat. Di Malaysia, ia boleh dilihat hampir setiap rumah mempunyai penyaman udara yang dipasang di dalamnya. Berdasarkan dari penyelidikan, penggunaan penghawa dingin menggunakan kira-kira 40 % daripada jumlah tenaga elektrik yang digunakan di dalam rumah. Ini bermakna bahawa penggunaan penghawa dingin menggunakan banyak tenaga elektrik. Dengan potensi nanopartikel yang telah dibangunkan sejak beberapa tahun kebelakangan ini, ramai penyelidik percaya bahawa nanopartikel boleh meningkatkan kekonduksian terma dan kelikatan dinamik bendalir asas konvensional, sekaligus meningkatkan kadar pemindahan haba dan penggunaan tenaga dapat dikurangkan. Dalam projek ini, kesan nanopartikel, CuO yang dimasukkan kedalam penyejuk, yang boleh dipanggil sebagai nanorefrigerant, sedang disiasat menggunakan pemodelan matematik dari segi kekonduksian terma, kelikatan dan kadar pemindahan haba daripada nanorefrigerant. Simulasi diperlukan dalam projek ini untuk mengesahkan keputusan Pemodelan Matematik untuk mempuyai...
tracking img