On 9 October 2001 two US oil companies Chevron and Texaco merged. Their long-term joint venture operation, known as Caltex (formed in 1936 and operating in East and Southern Africa, Middle East, Asia and Australasia), was incorporated into the one global energy company. This global enterprise will be highly competitive across all energy sectors, as the new company brings together a wealth of ta...

There is an increasing demand for the on-line condition monitoring of lubricating oils. In our recent research, we considered various sensor principles for the on-line monitoring of thermal aging of engine oils. One of the investigated parameters is the viscosity of the lubricating oil, which can be efficiently measured using microacoustic sensors. Compared to conventional viscometers, these se...

The main objective of this work was the incorporation of reactive isocyanate groups into chitin and chitosan in order to effectively use the products as reactive thickening agents in castor oil. The resulting gel-like dispersions could be potentially used as biodegradable lubricating greases. Three different NCO-functionalized polymers were obtained: two of them by promoting the reaction of chi...

In the present work, we focus on long-term and permanent measurements of approximately two years on a 192 kWel Gas Otto CHP (combined heat and power) unit at a full-scale research biogas plant. In detail the influence of 600 h and 1800 h maintenance intervals on electrical efficiency consumption and exhaust gas emissions such as NOx and CO have been studied under real life conditions. Lubricati...

As awareness of shipping’s impact on the environment grows, increasing attention is being paid to “operational lubricant discharges”. Such leakage of lubricating oil, in the course of normal operations, may occur both from underwater equipment (sterntubes, controllable pitch propellers, thrusters and pods, steering gear, stabilisers) and from above the waterline equipment (such as cranes, davit...

Pseudomonas aeruginosa Hex1T was isolated from soils contaminated with used lubricating oil from a garage in Córdoba, Argentina. This strain is capable of utilizing this pollutant as the sole carbon and energy source. Here, we present the 6.9-Mb draft genome sequence of Hex1T, which contains many heavy metal-resistance genes.

Wear is the progressive loss of the material from the operating surface of machine due to relative motion between surfaces. The successful design of machine elements depends upon essentially on the understanding tribological principles like wear and friction. The lubricating oils are the blood of the machine’s operation, and the service life and economic effectiveness of the machine are relativ...