Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

Viscosity Studies Of Synthesized Polyol Ester From Jatropha Oil

Nor Mazelen Bt Mohamad Pauzi, Nor Mazelen (2010) Viscosity Studies Of Synthesized Polyol Ester From Jatropha Oil. Universiti Teknologi Petronas, Seri Iskandar ,Tronoh,Perak. (Unpublished)

Download (537kB) | Preview


The purpose of this project is to study the viscosity of synthesized polyol ester from jatropha oil. Jatropha oil-based polyol esters are potential biodegradable stocks for environmentally friendly lubricants. The physical properties of lubricants are primarily contributed by the structure of the lubricant base stock. Similarly, the first criterion for any potential polyol ester hydraulic fluid is the viscosity of the base ester before addition of any additive. Viscosity, μ, is the most important characteristic of a fluid lubricant because it has a major role in the formation of a fluid film. Hydraulic fluids of any type are designed to meet a specific viscosity classification. Viscosity grades are defined by International Standards Organization (ISO) standards according to a fluid’s viscosity at 40ºC in centistokes (mm2/second). The synthesis of jatropha oil trimethylolpropane (TMP) esters has been performed by transesterification of jatropha oil methyl esters (ME) with TMP using sulphuric acid as catalyst. The temperature and shear rate effect on viscosity are then have been investigated and be compared with methyl ester, sarapar and neopentylglycol in this project. The Brookfield Cap 2000+ LSeries and H-series have been used to measure viscosity at lower and higher temperature respectively. Polyol esters (POE) are being used in many applications areas as compressor oils, refrigeration lubricants, metalworking fluid, jet engine lubricants, high-temperature chain oils, hydraulic fluids and automotive gear oils. In industrial markets, POEs are used extensively in synthetic refrigeration lubricants due to their miscibility with non-chlorine refrigerants. They are also widely used in a variety of very high temperature applications such as industrial oven chains, stationary turbine engines, high temperature grease, fire resistant transformer coolants, fire resistant hydraulic fluids, and textile lubricants.

Item Type: Final Year Project
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 5 not found.
Date Deposited: 03 Nov 2011 11:23
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/1321

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...