Corner Posts

Journal bearing design criteria IV - Bearing clearance

Journal bearing design criteria IV - Bearing clearance

Elements that carry power transmission elements such as gear wheel, belt and pulley or chain wheel mechanisms are called shafts. Shafts that assume this carrying task are supported with journal bearings and ball bearings (rollers). Part of shafts ...

11.11.2019 12:02:00
Prof. Dr. Ertuğrul Durak     197
Fossil resources: Environment and climate change

Fossil resources: Environment and climate change

The cost of providing welfare and comfort in our lives by using coal, oil, natural gas, and the products made from these fossil resources is very high for our planet. Therefore, it is indisputable to minimize the greenhouse gas emissions, ...

11.11.2019 11:56:00
Prof. Dr. Filiz Karaosmanoğlu     164
Journal bearing design criteria III / Oil galleries

Journal bearing design criteria III / Oil galleries

The main purpose of lubrication is to form an oil film between the two surfaces, which has sufficient thickness and is resistant to operating conditions. It aims to transform the mechanical friction that causes loss of energy into internal friction ...

2.9.2019 16:30:00
Prof. Dr. Ertuğrul Durak     454
Journal bearing design criteria - II

Journal bearing design criteria - II

Bearing selection and design processes can be summarized as: -Selecting the optimum bearing type, -Calculating bearing sizes that will ensure safety, -Reviewing the performance analysis of bearing if it fulfils the needs, -Modifying the design ...

21.8.2019 16:33:00
Prof. Dr. Ertuğrul Durak     714
Journal bearing design criteria - I

Journal bearing design criteria - I

In general, design is a production process that aims to find a solution for a specific function. Several alternative solutions can be offered to solve the problem in design because design requirements can be interpreted in many different ways. Main ...

30.5.2019 11:52:00
Prof. Dr. Ertuğrul Durak     894
Plant-oil-based lubricants - II

Plant-oil-based lubricants - II

Technical terms such as biodegradable, bio-based, environment-friendly, recyclable, renewable, non-toxic, green, etc. are frequently used in the industry as well as in our daily lives. These terms are becoming a key sales tool and sales criteria for ...

1.4.2019 17:16:00
Prof. Dr. Ertuğrul Durak     1823
Climate Action 100+

Climate Action 100+

The 24th Conference of the Parties to the United Nations Framework Convention on Climate Change (COP24) was held in Katowice, Poland on December 2-14, 2018. At the Conference, the Paris Agreement Work Programme (Paris Rulebook) was adopted to be ...

1.4.2019 17:11:00
Prof. Dr. Filiz Karaosmanoğlu     1384
Lubricants and lubrication from mechanical engineering students’ perspective

Lubricants and lubrication from mechanical engineering students’ perspective

Mechanical engineering is a field of engineering which studies, researches and provides training about the construction, manufacturing, manufacturing planning, assembly, maintenance-reparation and operation of all kinds of mechanisms, mechanical ...

1.12.2018 17:41:00
Prof. Dr. Ertuğrul Durak     1965
Plant-based lubricants - I

Plant-based lubricants - I

PETDER’s 2017 Sector Report reveals that 51 percent of the lubricant consumption in Turkey is composed of automotive lubricants, whereas 40 percent is industrial lubricants, 4 percent is marine lubricants, and 5 percent is greases. In this ...

13.11.2018 11:54:00
Prof. Dr. Ertuğrul Durak     1660
Electric vehicles and engine oils market

Electric vehicles and engine oils market

The number of electric cars on the world’s roads reached 3,109,050 in 2017 with a 55 percent increase compared with 2016, according to the latest edition of the International Energy Agency’s “Global Electric Vehicles Outlook” ...

13.11.2018 11:52:00
Prof. Dr. Filiz Karaosmanoğlu     3152
Hydraulic oils and oil additives

Hydraulic oils and oil additives

Hydraulic fluid selection is very important because today's hydraulic systems operate at harsh conditions consisting of high pressure, high temperature and high speed. An effective fluid should improve the hydraulic system's operating performance, ...

1.6.2018 16:53:00
Prof. Dr. Ertuğrul Durak     7551
Republic of Kazakhstan and green economy

Republic of Kazakhstan and green economy

The Republic of Kazakhstan has an enviable “Transition to Green Economy Plan” as a country which has a rapidly growing economy and holds the highest volume of greenhouse gas emission in Central Asia. Green policy was adopted in 2013. ...

1.6.2018 16:39:00
Prof. Dr. Filiz Karaosmanoğlu     3678
Vergide güncel gelişmeler

Vergide güncel gelişmeler

1- Katma Değer Vergisi Kanununda Değişiklik Yapılmasına Dair Kanun Tasarısı TBMM’ye Sevk Edilmiştir. Katma Değer Vergisi Kanunu’nda önemli değişiklikler öngören “Katma Değer Vergisi Kanunu İle ...

9.4.2018 16:45:00
Mehmet Erkan     5735
Lubrication power for wind power

Lubrication power for wind power

We started this year with 6872 MW installed power, in which the wind industry as the locomotive of renewable energy investments of our country has gained momentum for nationalization. In line with the goal “creating a sustainable and ...

9.4.2018 16:39:00
Prof. Dr. Filiz Karaosmanoğlu     3786
2D nanomaterials as lubricant additives

2D nanomaterials as lubricant additives

Heat generation and distribution during friction can lead to a large amount of energy loss. Friction-related wear can lead to serious problems such as damage to surfaces, reduced performance and reduced reliability of the devices. Approximately one ...

1.4.2018 16:34:00
Prof. Dr. Ertuğrul Durak     4224
Energy efficient, climate change-resistant production

Energy efficient, climate change-resistant production

Energy consumption in the industry has a cost in two dimensions: the cost of production and the impact of production on our earth. For resource efficiency in production, energy -one of the most fundamental inputs- must be consumed efficiently. For ...

1.2.2018 17:06:00
Prof. Dr. Filiz Karaosmanoğlu     3929
Additive types

Additive types

Today, extensive research continues to achieve high performance in lubricants, because the properties of current lubricants in today's technology are still not perfect. Lubricant additives are an effective way to improve performance. At present, ...

1.2.2018 16:52:00
Prof. Dr. Ertuğrul Durak     1225
Lubricants and innovation

Lubricants and innovation

The importance of innovation for lubricant manufacturing was discussed at the UEIL (Union of European Lubricants Industry) Annual Congress held on 25-27 October 2017 in Bologna, Italy. UEIL represents more than 450 companies and 100,000 employees, ...

1.12.2017
Prof. Dr. Filiz Karaosmanoğlu     5084
Additive types 3

Additive types 3

Detergent and dispersant additives: Detergent and dispersant additives are designed to control the carbon and oxidation, sludge, varnish, lacquer and other solid materials that are formed in lubricants due to various reasons. They are used to ...

10.10.2017
Prof. Dr. Ertuğrul Durak     4479
Waste lubricants

Waste lubricants

Unfortunately, we see lots of consecutive news and reports about a beautiful city of our beautiful country, with the titles of “Waste Oil Operation”, “Waste Oil Confiscated”, “Raid on Illegal Oil” and so on. There ...

10.10.2017
Prof. Dr. Filiz Karaosmanoğlu     4731
Global lubricant manufacturers and sustainability

Global lubricant manufacturers and sustainability

“Sustainability” methods and targets of global lubricant manufacturers are strong. Ensuring sustainability in lubricant production and consumption is a priority for today, and a must for tomorrow. Lubricants are used in almost every ...

25.8.2017
Prof. Dr. Filiz Karaosmanoğlu     4703
Additive types

Additive types

Oxidation inhibitors: Oxidation reactions are exothermic and very complex reactions. Oxidation in lubricants that contain paraffinic and naphthenic hydrocarbons may lead to the formation of acidic or soluble products in lubricants, and oxidation in ...

23.8.2017
Prof. Dr. Ertuğrul Durak     5094
Carbon management in lubricant plants

Carbon management in lubricant plants

The carbon footprint of the lubricating oil affects the carbon footprint at the site where it is used. For this reason, reducing the carbon footprint before use gives a green advantage to the lubricant. In the lifecycle of the lubricant from the ...

1.6.2017
Prof. Dr. Filiz Karaosmanoğlu     4481
Additive types

Additive types

Freezing Point Depressants (FPD): Hydrocarbons, which form the basis of lubricating oils, tend to solidify at low temperatures. Such additives are high molecular weight polymers. This additive prevents formation of a wax crystal structure that will ...

1.6.2017
Prof. Dr. Ertuğrul Durak     1336

Last Added

Shell uses plastic waste to produce chemicals

Shell uses plastic waste to produce chemicals

Shell announced it has successfully made high-end chemicals using a liquid feedstock made from plastic waste. The technique, known as pyrolysis, is considered a breakthrough for ...

4.12.2019 10:10:00
Worldwide     85
Emirates selects Rolls-Royce Trent XWB engines for its Airbus A350 fleet

Emirates selects Rolls-Royce Trent XWB engines for its Airbus A350 fleet

The UAE-based airline announced it will power 50 new A350-900 aircraft with Trent XWB engines.   Emirates confirmed an order for 50 A350-900 aircraft powered by Trent XWB ...

27.11.2019 15:02:00
Worldwide     104
ICIS flagship meeting will take place on 17-21 February 2020

ICIS flagship meeting will take place on 17-21 February 2020

Each year, the same week in February is firmly etched into the base oils and finished lubricants markets' calendars. A week that provides the industry with their most important ...

21.11.2019 16:13:00
Worldwide     70
Petroyağ enters Turkey’s “Best Managed Companies” list

Petroyağ enters Turkey’s “Best Managed Companies” list

Implemented in 20 countries by Deloitte Private and held in Turkey for the first time last year, the Best Managed Companies program winners were announced for 2019. The companies ...

19.11.2019 14:36:00
From Turkey     150
Journal bearing design criteria IV - Bearing clearance

Journal bearing design criteria IV - Bearing clearance

Elements that carry power transmission elements such as gear wheel, belt and pulley or chain wheel mechanisms are called shafts. Shafts that assume this carrying task are ...

11.11.2019 12:02:00
Corner Posts     Prof. Dr. Ertuğrul Durak     197
Fossil resources: Environment and climate change

Fossil resources: Environment and climate change

The cost of providing welfare and comfort in our lives by using coal, oil, natural gas, and the products made from these fossil resources is very high for our planet. Therefore, ...

11.11.2019 11:56:00
Corner Posts     Prof. Dr. Filiz Karaosmanoğlu     164
ACEA highlights the need for accelerating efforts towards zero-emission mobility

ACEA highlights the need for accelerating efforts towards zero-emission mobility

At the start of a new EU political term, the European Automobile Manufacturers’ Association (ACEA) is urgently calling for a comprehensive plan to enable the transition to ...

11.11.2019 11:44:00
Facility Review     248
PETDER publishes 2018 Sector Report

PETDER publishes 2018 Sector Report

PETDER published the 2018 Sector Report, which includes detailed information and data on the oil sector. According to the report, lubricant consumption decreased by 14.04 percent ...

10.11.2019 11:29:00
Articles     211
Naphthenics help solve the “lithium problem”

Naphthenics help solve the “lithium problem”

With an electric car revolution on its way and an ever-growing appetite for mobile phones, computers and other gadgets, the world needs to find solutions to increase supply and ...

9.11.2019 11:18:00
Product Review     235
Petrol Ofisi Lubricants is ready for the future needs of customers

Petrol Ofisi Lubricants is ready for the future needs of customers

Highlighting the fact that Petrol Ofisi is the traditional leader of fuels as well as the lubricants and chemical product markets in Turkey, Petrol Ofisi Lubricants Director ...

8.11.2019 10:46:00
Interview     290