Turbine Oil

turbi5

 A turbine is a device that harnesses the kinetic energy of some fluid - such as water, steam, air, or combustion gases - and turns this into the rotational motion of the device itself.Turbines are generally used in electrical generation, engines, and propulsion systems. Turbines are machines (specifically turbomachines) because turbines transmit and modify energy. A simple turbine is composed of a series of blades - currently steel is one of the most common materials used - and allows the fluid to enter the turbine, pushing the blades. These blades spin while the fluid flows through, capturing some of the energy as rotational motion. Fluid flowing through a turbine loses kinetic energy and exits the turbine with less energy than it started with.

Turbines are used in many different areas, and each type of turbine has a slightly different construction to perform its job properly. Turbines are used in wind power, hydropower, in heat engines, and for propulsion. Turbines are extremely important because of the fact that nearly all electricity is produced by turning mechanical energy from a turbine into electrical energy via a generator.

Turbine oil formulations are relatively simple; they are a mixture of the following ingredients: Base oil, corrosion inhibitors, oxidation inhibitors, defoamants, and demulsifiers. The base oil is usually 97 percent or more of the turbine oil formula.Turbine oil is one of the most important industrial lubricants that is increasingly used in heavy oil industries, refineries, petrochemicals, power plants, oil and gas transmission pipelines, commercial and military aircraft

The main indicator of any type of turbine oil number  is the viscosity at 40 centigrade degrees and its naming is based on this.new turbine oils are formulated for superior protection against oxidation, sludge, and varnish. By combining quality base oils with highly effective additives, we've created some of the highest-performing turbine oils in the industry. Some of the most significant changes include improved RPVOT retention, water separation, varnish and sludge protection, rust and corrosion reduction, and foam and entrained air release. We turbine oils to the test against leading industry competitors. The following test results proved that dramatically outperforms other turbine oils in industry standard tests.

Which oil is used in turbine?
Hydro turbines typically use ISO 46 or 68 R&O oils. Demulsibility and hydrolytic stability are the key performance parameters that impact turbine oil life due to the constant presence of water.
Can steam turbine operate without lubrication?
Steam turbines cannot operate without lubrication. Therefore, turbine lubricating oil systems must be designed, operated and maintained for extreme reliability. Lubricating oil systems affect overall facility loss prevention more than most mechanical systems.

Types of turbine oils:

ISO 18, ISO 22 , ISO 32 ,ISO 46, ISO 68, ISO 100,.. .

oritur
oritur2

The larger the numbers, the thicker and heavier the oil.

Most turbine oils have very important R&D properties that are highly resistant to Rust and Oxidation. Turbine oil, like other lubricants, is made of two main types, Mineral or Fully Synthetic. The higher the technology of the devices, the more the use of Fully Synthetic turbine oil increases.
What type of oil is used to lubricate gas turbine engines?

The synthetic oil used in turbine engines is usually packaged in one-quart cans of sealed plastic. Synthetic oils specifically developed for turbine engines meet all the lubricating oil requirements. There are two main advantages to synthetic oil over petroleum oil.Turbines are used in wind power, hydropower, in heat engines, and for propulsion. Turbines are extremely important because of the fact that nearly all electricity is produced by turning mechanical energy from a turbine into electrical energy via a generator.
turb 7
turb 8

 

    Turbine Oil meets the requirements of the following industry and OEM specifications:

  • ABB G12106
  • Alstom Power HTGD 90 117, for turbines without gear drives
  • Ansaldo Energia AE94.3A & AE94.2 without gear drives (ISO VG 46) (approved)
  • ANSI/AGMA Standard 9005-E02, R&O Inhibited Oils
  • ASTM D4304-06a, Type I Turbine Oil
  • British Standard 489
  • China National Standard GB 11120-2011 L-TSA (ISO VG 32 & 68) (approved)
  • Denison Hydraulics HF-1
  • DIN 51515 Part 1, Lubricating Oils, Type L-TD
  • DIN 51517 Part 2, Lubricating Oils, Type CL
  • DIN 51524 Part 1, Hydraulic Oils, Type HL
  • General Electric GEK 46506e, GEK 32568l, GEK 121608, GEK 27070 (obsolete), GEK 28143b (obsolete), GEK 120498 (obsolete)
  • Siemens Power Generation TLV 9013 04, TLV 9013 05
  • U.S. Military MIL-PRF-17672D, Symbol 2075 T-H (ISO VG 32), 2110 T-H (ISO VG 46), 2135 T-H (ISO VG 68)
  • U.S. Steel 126

Turbine Oil is a very high-quality, rust and oxidation (R&O)-inhibited circulating oil developed for use in industrial steam turbines, rotary air compressors, and many other industrial applications. It is specially formulated to protect against sludge and varnish formation to provide long service life.

Additional Details

ISO Grade 46
Specific Gravity @ 60°F 0.868
Density, lbs/gal @ 60°F 7.23
Color, ASTM D1500 0.5
Flash Point (COC), °C (°F), ASTM D92 232 (450)
Pour Point, °C (°F). ASTM D97 -40 (-40)
Viscosity, ASTM D445
cSt @ 40°C 46.0
cSt @ 100°C 6.7
Viscosity Index, ASTM D2270 102
Acid Number, ASTM D974, mg KOH/g 0.04
Air Release, ASTM D3427, minutes 3.0
Copper Corrosion, ASTM D130, 3 hrs @ 100°C 1a
Demulsibility, ASTM D1401, minutes to pass 20
Foam Test, ASTM D892, Seq. I, mL 0/0
Foam Test, ASTM D892, Seq. II, mL 0/0
Foam Test, ASTM D892, Seq. III, mL 0/0
Oxidation Stability
TOST, ASTM D943-04a, hours >10000
RPVOT, ASTM D2272, minutes >1500
Rust Test, ASTM D665 A&B Pass
OIM77
OI98

new turbine oils are formulated for superior protection against oxidation, sludge, and varnish. By combining quality base oils with highly effective additives, we've created some of the highest-performing turbine oils in the industry. Some of the most significant changes include improved RPVOT retention, water separation, varnish & sludge protection, rust & corrosion reduction,  foam and entrained air release. We put  turbine oils to the test against leading industry competitors. The following test results proved that  dramatically outperforms other turbine oils in industry standard tests.

Is turbine oil the same as hydraulic oil?

The turbine oil is used as a hydraulic fluid. The governor along with the turbine servomotors are the hydraulic system.

TUR 8
TUR 7

 

Heat engines use turbines (as well as pistons) because they can efficiently extract energy from fluids. Additionally, turbines require fairly little maintenance.

Gas turbines are used frequently in heat engines as they are one of the most flexible types of turbines. One specific application of these gas turbines is in jet engines. In these gas turbines, compressed air is heated and mixed with some fuel. When this mixture ignites it undergoes rapid expansion. The expanding air is pushed into the turbine, causing it to spin. Since they use compressed air, high altitudes do not affect the efficiency of the turbines, making them ideal for use in airplanes.. A diagram of a gas turbine is shown in Figure 2 below.

A diagram of a gas turbine (supersonic military jet turbine) engine

 

Technical training is a crucial component of employee development and business success because it addresses the hard skills that your employees need to perform their daily tasks accurately. It's critical that your organization creates a space where learners have the opportunity to learn from expertly crafted learning content and practice their skills within a safe environment. turbine oils were developed specially for use in water, gas and steam turbines (with and without gears) as well for turbo compressors and transmission compressors (Turbine Oil MT series). They stand out through their carefully selected, high-quality base oils and perfectly matched, zinc-free additives. In particular, when using turbines in power stations, reliable operation is of decisive importance. Faults, failures and unplanned downtimes endanger the supply security and can cause enormous costs. Use Yekta turbine oils to guarantee long service lives of systems and lubricants as well as to minimise the time and costs for maintenance and oil changes.

Turbine oil composition

Turbines are turbomachines that use a working medium to transfer mechanical energy to the machine to be driven. There are many lubrication points in a turbine that have hydrodynamic conditions. The bearings of the turbines are hydrostatic and prevent mixed friction. This means that turbine oils can be used for a long time. This is done at high temperature, speed and, if necessary, humidity. The turbine oils must lubricate various components and function as hydraulic oil, bearing lubricating oil, transmission oil and cooling fluid.

Turbine oils operate in a high-speed range and the oils are exposed to high temperatures. This requires high thermal and oxidative stability.

Especially a good air release capacity of the oils is desirable in order to prevent foam formation in the oil. Too much air in the turbine oil drastically reduces the lubricating properties. Foaming can lead to delayed reactions in hydraulics and cavitation in pumps and bearings.

Turbine oils are generally based on base oils with good demulsifying properties (water separation). When used in steam or water turbines, the oils come into contact with water and must be very robust in this respect. If the water remains permanently in the lubrication circuit, there is a risk of bearing damage. In this respect, resistance to corrosion and rust is also decisive, as water attacks the metals. A critical limit for the water content in the oil is 1000 ppm or 0.1%. The value may vary depending on the system.Also important for a good turbine oil is its filterability in order to remain operational for a long time and to prevent oil ageing. Purity, viscosity and wear protection must be given to a high degree in order to lubricate a turbine reliably. The filling quantities of the oil can be up to several thousand litres per application area. Therefore, a long-term use without oil change is desirable. The oil is used up to 20 years without changing.
Additives in turbine oil

In general, turbine oils contain a relatively small amount of additives. The base oil quality mainly determines the performance of a turbine oil. However, the addition of additives cannot be completely dispensed with. Important additives in turbine oils are:

    Antioxidant additives
  • Anti-corrosion additives
  • Wear protection additives (for turbines with gears)
  • Demulsifiers (increase of water separation)
  • Foam inhibitors (prevention of foam formation)

Yekta Learning can help reimagine your training program with the latest technologies.