Results 1 to 10 of about 24,680 (295)

Fabrication, Crystal Structures, Catalytic, and Anti-Wear Performance of 3D Zinc(II) and Cadmium(II) Coordination Polymers Based on an Ether-Bridged Tetracarboxylate Ligand

open access: yesCrystals, 2023
Two 3D Zn(II) and Cd(II) coordination polymers, [Zn2(µ4-dppa)(µ-dpe)(µ-H2O)]n·nH2O (1) and [Cd2(µ8-dppa)(µ-dpe)(H2O)]n (2), have been constructed hydrothermally using 4-(3,5-dicarboxyphenoxy)phthalic acid (H4dppa), 1,2-di(4-pyridyl)ethylene (dpe), and ...
Zheng-Hua Zhao   +4 more
doaj   +1 more source

From the value chain to environmental management of used lube oil: A baseline study in Bangladesh

open access: yesCase Studies in Chemical and Environmental Engineering, 2021
The performance, service life, and energy-economic efficiency of an engine depend on the quality of lubricants. In Bangladesh, yearly lube oil consumption increases by 12% against a 3.42% global increasing rate.
Md Shahinoor Islam   +3 more
doaj   +1 more source

OPTIMALISASI LUBE OIL COOLER TIPE FIN & TUBE HEAT EXCHANGER PADA PROSES PELUMASAOPTIMALISASI LUBE OIL COOLER TIPE FIN & TUBE HEAT EXCHANGER PADA PROSES PELUMASAN MENGGUNAKAN METODE NTU (NUMBER TRANSFER OF UNIT)N MENGGUNAKAN METODE NTU (NUMBER TRANSFER OF UNIT)

open access: yesJurnal Teknik Mesin, 2023
The lube oil cooler is one of the tools in the PLTGU lubrication system. The lube oil cooler functions to keep the lubricating oil temperature in the turbine at a normal temperature, namely ± 40 C.
Kurniawan Kurniawan, Agus Budihadi
doaj   +1 more source

Preparation and evaluation of some eco-friendly olethio-amide derivatives as lube oil additives

open access: yesEgyptian Journal of Petroleum, 2022
Eco-friendly synthesis of organic compounds is a major trend in green chemistry. Thus, we aim at producing some of the lube oil additives through the use of green chemistry.
Rasha S. Kamal   +3 more
doaj   +1 more source

Study of Lubricating Oil Degradation of CI Engine Fueled with Diesel-Ethanol Blend

open access: yesTribology in Industry, 2021
The study of lube oil is useful in scheduled maintenance activity, determining the oil replacement time for engines, to increase the engine life and ensure the maximum performance.
S.K. Kurre   +6 more
doaj   +1 more source

Deep Understanding of the Mechanism and Thermophysical Properties of Prepared Nanofluids Lube Oil Stock-60 with Al2O3 NPs [PDF]

open access: yesJournal of Applied Sciences and Nanotechnology, 2022
Iraqi petroleum refineries produce large quantities of base lubricating oils (lube oils). Managing the influence of nano-additives on the lube oil nanofluids is required deep understanding to explain the resulting new specifications of produced nano ...
Alyaa Awad, Khalid Sukkar, Dalia Jaed
doaj   +1 more source

Viscosity Index Improver for Engine Oils: An Experimental Study [PDF]

open access: yesJournal of Chemical and Petroleum Engineering, 2017
Engine oils are widely used for lubrication purposes in automobile and related industries. Viscosity Index (VI) improver has found its largest commercial applications as additives to engine oils.
Gaurav Rattan, Nitu Singh Parihar
doaj   +2 more sources

A Specifically Designed Injector for Controlled Lube Oil Addition in View of Investigation of Pre-Ignition Phenomena in Dual–Fuel/Gas Engines

open access: yesFrontiers in Mechanical Engineering, 2021
Internal combustion engines will continue to play a role during a transitional phase, especially in heavy-duty or marine applications. In this context, lean-burn gas/dual-fuel combustion is an attractive concept to reduce CO2, combined with considerably ...
Pascal Süess   +4 more
doaj   +1 more source

Analysis of Maintenance Activities in Oil Lubrication Refinery Using Statistical Techniques [PDF]

open access: yesEngineering and Technology Journal, 2015
In this research the maintenance activities isinvestigated for lube oil factory (3) as this factory is the newest and largest in its production capacity compared to lube oil factories (1) and (2)at Daura refineries.Data of different equipment’s failure ...
Lamyaa M. Dawwod   +2 more
doaj   +1 more source

The detection of lubricating oil viscosity changes in gearbox transmission systems driven by sensorless variable speed drives using electrical supply parameters [PDF]

open access: yes, 2015
Lubrication oil plays a decisive role to maintain a reliable and efficient operation of gear transmissions. Many offline methods have been developed to monitor the quality of lubricating oils.
A D Ball   +19 more
core   +1 more source

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