In the process of emulsification, bitumen is dispersed into microscopic particles, while internal cohesion and viscosity of bitumen, as well as interfacial tension resist the formation of new phase boundary surface. Bitumen particles tend to coalesce. To make a stable emulsion, it is necessary not only to apply mechanical forces correctly to make small enoughRead More
Bitumen emulsions dispersed systems which consists mainly of bitumen and water, in which one liquid is dispersed in the other in the form of small droplets. The breaking (dispersion) of bitumen in water is usually done in colloid mills, also referred to as homogenizers or dispersers. Regardless of the actual design of the equipment, theRead More
Although the cost structure of vehicle fleets and central heating facilities is quite diverse, some expenses are common to all, especially the cost of fuel, which amounts to at least 40% of the total costs. Apparently, with the current economic trends, this number is about to keep growing in the coming years. Fuel homogenization increasesRead More
Bitumen emulsions have found wide use recently in construction and road repairs. Straight bitumen has long been the only binding material, but with the emergence of bitumen emulsion, the situation started to change, because emulsion have several apparent benefits compared to the traditional binding material, including: savings on heating; no harmful emissions into the environment;Read More
Bitumen emulsions are successfully applied in construction of pavements with various mineral aggregates by mixing on the road and impregnation surface treatment (single or double) and also by making black top with mineral aggregate made by mixing the aggregate with emulsions. Acidic bitumen emulsions ensure excellent adhesion of bitumen with the minerals for water resistantRead More
Most modern transformers use oil for insulation and cooling. The condition of oil defines transformer reliability and continuous power supply to the clients. Therefore, all procedures related to insulating fluid must be performed in strict accordance with the standards for quality and safety. In this article we will look at the process of transformer oilRead More
X-ray machines are used for medical or industrial purposes. The former are used for diagnosis of illnesses, while the latter help find defects in metal and non-metal structures (non-destructive control). Normal operation of an X-ray tube (XRT) requires high voltage, which may, depending on the purpose of the X-ray machine, reach as high as tensRead More
Industrial oil purification is a process that can recover used oil to newlike condition. If you are going to restore the oil, you need to know some important facts about oil purification equipment. Oil Purification Equipment Differences There are different types of oil purification equipment. Their differences are basically determined by the types of processedRead More
Creating durable, cost-effective, environmentally friendly roofing and waterproofing materials is one of the most urgent tasks of civil and road construction. In the past years, a variety of methods were used to try to solve this task, until the application of bitumen emulsions came to the fore. Their popularity in roofing, waterproofing and road worksRead More
Hydraulic oil purification is a mandatory technological operation that must be performed before pouring such oil into equipment and periodically during oil operation. In most cases, hydraulic oil is used in the equipment which is sensitive to contamination. Terefore, the defined technical requirements for these fluids are clear enough, and product manufacturers try to complyRead More
Power transformers are the most expensive part of electric networks equipment. Perhaps this is why a large amount of such equipment has already exceeded its estimated service life. Not every electric power company can afford spending lots of money on transformer replacement. Therefore, the task of improving reliability of the existing fleet of power transformersRead More
Petroleum oils are chemically aggressive substances which are able to interact with other materials under certain environmental conditions. Incineration of waste oil can lead to emission of undesired components into the atmosphere (sulfur oxides, carbon oxides, nitrogen oxides, dust, ash, soot, etc.). The substances contained in waste oil can cause serious diseases, as well asRead More
Quality of transformer oil is an unstable property which is caused by the influence of a number of negative factors. Oxidation may be considered the most significant factor. The impact of sunlight, high temperatures, as well as some other factors contributes to the development of transformer oil oxidation. As a result, acids may form inRead More
Petroleum oil is essential in many industries, performing heat dissipation, lubricating, protective and other functions. But during operation, they are affected by many negative factors, which include friction, exposure to high temperatures, atmospheric oxygen and mechanical dirt particles. As a result, the oil begins to lose its properties and can not fully carry out itsRead More
Much attention in the European Union (EU) is traditionally paid to the issue of recycling of waste of different origin. Waste petroleum oil is no exception. When released into the environment, it can cause the death of animals, contamination of ground and drinking water, as well as the violation of virtually all biological links inRead More
World reserves of oil decrease over time, which makes the issue of used oil economy quite a pressing challenge. When considering the process of diesel fuel consumption, we should note that the problem of its saving must be addressed at three levels: at state level, at major consumers’ level and ordinary consumers’ level. GovernmentRead More
GlobeCore invites all electric power industry professionals to visit our “Transformer Life Extension” seminar in Buenos-Aires on 4 April 2019. The event will be held at Dazzler San Martín Hotel (Calle San Martín 920, casi esq. Paraguay), starting at 8-30. The discussion will be focused on increasing transformer reliability and extension of transformer service life,Read More
The fifth Sharjah Energy Meet was held in the United Arab Emirates on 29 january 2019. This event traditionally gathered over 100 participants, including the leadership of the most prominent power companies and industry experts. The participants of the meeting shared their vision of the future wind power development and discussed possible implementation of variousRead More
GlobeCore is pleased to announce a seminar for electrical industry specialists, to be held on 25 February 2019 in Antigua, Guatemala. The seminar will include a discussion of transformer reliability and life extension, as well as purification and regeneration of transformer oil. The event will be held at Santo Domingo del Cerro, Edificio EfraínRead More
The December 2018 issue of Windpower Engineering & Development magazine published an article titled How to maintain wind-turbine gearbox & oil health, written by GlobeCore service engineer Frank May. The article deals with typical wind turbine gearbox issues, with an analysis of the factors detrimental to gearbox operation and reliability. The main idea is thatRead More
