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Steam turbine, one of the greatest inventions in the field of mechanical engineering is an energy conversion device that converts thermal energy from the steam into mechanical energy

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Complete steam turbine boiler feed pump packages, stand alone steam turbine API steam turbine packages

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Chola Turbo, one of the leading Steam turbines,Indian Steam Turbine,API Steam Turbines, Geothermal Steam Turbines,Steam Turbine Manufacturers in India, situated in Hoskote, 25 kms from Bangalore, CTMI has, within a decade, rolled out a number of turbines up to 30 MW. across a range of industries.

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Steam turbines extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Chola Turbo is one of the leading steam turbines manufacturer in India. Our manufacturing unit is located in an industrial zone near Bangalore. We are proudly manufacturing various classes of steam turbine form the last 2 decades.

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Geothermal Steam Turbines

Geothermal Steam Turbines operate typically with saturated steam, which is provided from a geothermal source. Their unique features materials of construction lead to long-term, reliable operation in geothermal service. CTMI offers a revolutionary portable Geo thermal units upto 5 MW which offers flexibility in transportation and redeployment on a second well in case of failure of the original well head. These modular power plant are delivered in 40-foot ISO containers and each modules are manufactured at the factory allowing for quick installation. It is designed to operate independently for each well, but can be organized in power farms to provide a similar power output to large traditional geothermal power plants.

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Steam Turbines

Steam turbine, one of the greatest inventions in the field of mechanical engineering is an energy conversion device that converts thermal energy from the steam into mechanical energy. The modern steam turbine was invented in the late 19th century by Charles Parsons. In those days the demand for the efficient energy conversion device was high due to the industrial revolution.

The steam turbines were introduced in the power generation sector as they were able to create a rotatory motion which in turn continuously rotated the shaft of the generators. It replaced the conventional piston based steam engine because of its greater thermal conversion efficiency and high power to weight ratio. Initially the steam turbines were used in power plants and later it gained importance in various power conversion devices too. The steam turbine made the power production cheap and shaped the efficient use of thermal power through its multiple stages of expansion.

Steam turbines have become an integral part of all modern power plants and industries. They are also used in locomotives and propulsion systems. Currently steam turbines are utilized in the chemical industry, waste plants, oil and gas plants, heating and cooling systems, sugar mills and other distilleries. Condensing, pass-out condensing, and back-pressure are three types of steam turbines.

The advantages of using steam turbines include greater efficiency, less vibrations, require low volume of inlet fluid flow compared to gas turbines, and a high power to weight ratio.

CMTI offers steam turbines designed and manufactured as per API standards in terms of quality. We manufacture turbines with different configurations like Condensing / Back Pressure, Down, Up and side exhaust configurations, Single / multiple Controlled extractions, Uncontrolled steam extractions, Direct Drive / Gear Driven.

Our customers are located worldwide in more than 20 plus countries and in India we have service centers in Bangalore, Delhi, Pune, and Kolkata.

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HOW DO STEAM TURBINES WORK?

Nuclear and coal based thermal power plants together produce almost half of the world's electric power and steam turbines are the heart of these power plants. Steam turbines convert thermal energy into mechanical energy which inturn rotates the generator shafts to produce electricity. Charles Parsons first invented the modern steam turbine back in 1884.

WORKING PRINCIPLE OF STEAM TURBINE:

A steam turbine consists of multiple blades in airfoil shape. When a high pressure steam passes over it, a pressure difference is created due to the airfoil shape of the blade. The pressure difference creates a lifting force which rotates the turbine. Thus conversion of energy takes place that is from heat energy to mechanical energy. This is the basic working principle of a steam turbine and the turbine manufacturers rely on this for the best design.

HOW DOES A STEAM TURBINE WORK?

As the name implies that it is powered by steam, a high energy steam is injected into the turbine which transforms the potential energy of the steam into kinetic energy which causes continuous rotation of the blades. Anything that can flow is a fluid and hence steam is a fluid. A fluid has three forms of energy that are kinetic energy due to speed, pressure and temperature. All these three forms of energy get reduced when the turbine blades absorb and rotate. The low velocity will be incapable of generating enough lifting force to rotate the shaft. To overcome this challenge the blades are configured in such a way that the fluids are passed through the stator section. The stators are stationary and attached to the turbine casing and their design is such that the flow area decreases along the stator, that is the area of the stator where steam enters is wide and the area of the stator where steam exits is narrow, this design creates the increase in the speed of the steam just working similar to a nozzle. Thus the kinetic energy of the steam is revived. The whole turbine is configured by this design of blades and stators combination arranged adjacently. The stator is responsible to create an optimal angle of fire to the next blade. The overall design of the turbine is done to meet the required degree of reaction.

Degree of reaction = (Pressure Energy + Temperature Energy) change in the rotor / (Total Energy change in the rotor)

The degree of reaction is used to decide the type of turbine that is an impulse turbine or reaction turbine.

Since the volume of the steam gets increased upon reduction in the pressure within the turbine casing the turbine structure is designed with increased flow area towards the outlet. We can see that the steam turbine blades are long at the outlet whereas blades are too small at the inlet. Two such symmetrical units are attached on either side such that uniform distribution of steam takes place.

Depending upon the application different stages of steam turbine can be integrated such as high pressure turbine, low pressure turbine and intermediate pressure turbine. All these units may be attached to a common rotor which is connected to the generator to produce electricity.

EFFICIENCY OF A STEAM TURBINE:

The efficiency of a steam turbine depends on several factors like its type, application, stages etc. The modern steam turbines have efficiency of 80 - 90 %.

To increase the efficiency of the turbine, thermal power plants and industries utilize the same steam more than once by adding more heat after stage one. Here the steam is again fed to the boiler, the process is called reheating. This leads to a higher power efficiency of the steam turbine.

Other governors and turbine controllers are also integrated with the steam turbine to maintain the synchronous speed of the rotor. The rotor speed directly affects the frequency of the electricity generated.

Chola Turbo Machinery is one of the leading industrial steam turbine manufacturers in Bangalore, India. Contact us for all your industrial steam turbine needs.

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Steam Turbines

Steam turbine, one of the greatest inventions in the field of mechanical engineering is an energy conversion device that converts thermal energy from the steam into mechanical energy. The modern steam turbine was invented in the late 19th century by Charles Parsons. In those days the demand for the efficient energy conversion device was high due to the industrial revolution.

The steam turbines were introduced in the power generation sector as they were able to create a rotatory motion which in turn continuously rotated the shaft of the generators. It replaced the conventional piston based steam engine because of its greater thermal conversion efficiency and high power to weight ratio. Initially the steam turbines were used in power plants and later it gained importance in various power conversion devices too. The steam turbine made the power production cheap and shaped the efficient use of thermal power through its multiple stages of expansion.

Steam turbines have become an integral part of all modern power plants and industries. They are also used in locomotives and propulsion systems. Currently steam turbines are utilized in the chemical industry, waste plants, oil and gas plants, heating and cooling systems, sugar mills and other distilleries. Condensing, pass-out condensing, and back-pressure are three types of steam turbines.

The advantages of using steam turbines include greater efficiency, less vibrations, require low volume of inlet fluid flow compared to gas turbines, and a high power to weight ratio.

CMTI offers steam turbines designed and manufactured as per API standards in terms of quality. We manufacture turbines with different configurations like Condensing / Back Pressure, Down, Up and side exhaust configurations, Single / multiple Controlled extractions, Uncontrolled steam extractions, Direct Drive / Gear Driven.

Our customers are located worldwide in more than 20 plus countries and in India we have service centers in Bangalore, Delhi, Pune, and Kolkata.

[cholaturbo]

Steam Turbines

Steam turbines extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Chola Turbo is one of the leading steam turbines manufacturer in India. Our manufacturing unit is located in an industrial zone near Bangalore. We are proudly manufacturing various classes of steam turbine form the last 2 decades.

CTMI is backed by a group of dedicated technocrats who are constantly engaged in monitoring the improvements of quality and testing standards with design and development work. Our Steam Turbines Packages are the result of long-lasting experience and dynamic engineering. With base design and base scope the packages can be used for power generation and as mechanical drives and enable an output range from 5kW to 30 MW.

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Steam Turbine And Its Components

A steam turbine is a device that converts thermal energy into rotating mechanical energy. Turbines are employed for moving the rotor shafts of generators, they are the heart of all power plants, and are responsible for creating a rotational movement that induces an electromotive force(emf) in the generator coil to produce electricity. The operation of the steam turbine completely depends upon the dynamic action of the high-pressure steam ejected through the nozzle.

There are four major types of turbines; water turbine, steam turbine, gas turbine, and wind turbine. Among these different designs have been developed by various scientists and engineers. Steam turbines are used in power plants, industries, and cogeneration plants.

India has emerged as one of the leading turbine manufacturing countries due to the tremendous development in the technology of design and manufacturing. Hundreds of Indian companies are leading in the international market by designing high-efficiency turbines.

We at CTMI have taken it a step further and are offering Cost effective Pressure reducing Power stations where even minute pressure drops across the PRV/PRDS can be routed through the specially Designed CTMI steam turbines and generate incidental power

WORKING PRINCIPLE OF A STEAM TURBINE -

The nozzles are stationary and the rotor blades are dynamic. When the high-pressure steam through the nozzle hits the surface of the blades, it creates a rotating motion due to the change in the momentum of the blade. The resultant force on the blade results in the difference in the momentum of entering and exiting of the different blades. The blades are attached to the rotor shaft and convert change in momentum into rotating force.

The working principle is understood mathematically using Newton’s second law of motion by relating it with the rate of change in momentum of a high-velocity jet of steam that hits on a curved blade, that is rate of change in momentum(F), F=m(c1+c2)/t.

COMPONENTS OF THE STEAM TURBINE -

The design of steam turbine components is a complex task as it involves a three-dimensional design of its parts. Numerous factors are to be considered while designing like heat, pressure, impulsive force, sensitivity, stress, strain, vibrations, number of rotations, efficiency, etc. Considering the design part there are various components of steam turbines like rotor, shaft, blades, casing, bearings, valves, nozzle, seals, trip system, governor system, casing etc. But here we will focus only on 5 main parts of the steam turbine.

1. Rotor

Steam turbines are fixed on a casing and a rotor attached with moving blades. The rotor is fitted inside the casing which consists of rows of moving blades penetrating between the rows of fixed blades. The high pressure steam flowing through the turbine passes through the fixed and moving blades alternatively. The mechanism is such that the fixed blade directs the steam at a right angle for entry into the moving blades. The utmost care has to be taken so that the rotor and its casing withstands thermal stress and the moving blades fitted with the rotor must securely withstand the high centrifugal forces.

2. Casing

Casing is required to protect the steam turbine from steam leakage. The ends of the casing where the shaft of the rotor passes a seal is required to prevent steam leakages. Leakages are not fully eliminated but can be controlled to a minimal amount.

3. Speed regulator

The speed regulator regulates the overall turbine speed. The speed turbines are designed to operate at a rated speed called synchronous speed and the turbine operating above the synchronous speed can damage the machine. At synchronous speed the efficiency of the turbine is maximum.

4. Support system

The support system also includes a lubrication system for the bearings that supports the rotor by absorbing and thrust force developed within the turbine. Any other force developed within the turbine may disturb the stability of the operation of the turbine making it reduce in the output power.

5. Governor

Speed governor or governor is a speed-sensitive control system that is integrated with a steam turbine. It works in the synchronisation of the speed regulator. Both are interconnected and work by taking feedback with each other. The governor valve senses the amount of steam flow through the turbine. The steam valve is linked to the servo motor system, the turbine speed is continuously compared with the synchronous speed or reference speed that is set to the output signal of the servo motor. The speed is controlled by the amount of inlet steam and exhaust steam of the turbine.

TURBINE MANUFACTURER IN BANGALORE -

Looking for the best turbine manufacturer in Bangalore for your industrial needs, Chola Turbo offers different turbines related products that include API Steam Turbines, Back Pressure Turbines, Condensing Turbines, Extraction Condensing Turbines, PRV/PRDS Replacement Solutions, Forced Lubrication System, steam turbine, geothermal steam turbine. With expertise in this field for more than two decades, Chola Turbo has fulfilled industrial needs for clients in different sectors like oil/gas refineries, steel plants, chemical plants, sugar distilleries, nuclear plants.

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Pressure Reducing Power Stations

Free Electricity from Existing Saturated High / Low Pressure Steam

What is Cogeneration? As the word CO-GEN goes, it signifies two separate Generations, co-existing at the same time.

In this case it is simultaneous production of electrical energy and useful thermal energy in the form of steam

CTMI’s unique offering

A common misnomer is that energy is being produced. Cogeneration does not produce energy, it merely converts Heat to Electrical energy.

We at CTMI have taken it a step further and are offering Cost effective Pressure reducing Power stations where even minute pressure drops across the PRV/PRDS can be routed through the specially Designed CTMI steam turbines and generate incidental power

Schematic Diagram of Cogeneration System.

The Hidden Resource

Most steam users can now benefit from cogeneration, regardless of size

Steam is generated in industry at higher than required pressure

Usage pressure is generally much lower than generation pressure process

Steam is let-down in a Pressure Reducing Desuperheting Station (PRDS)from Header Pressure to the Usage Pressure

The Pressure Energy (Potential Energy) is converted to useless Turbulence & Noise in the in PRV

This Pressure Energy can be converted to useful Electrical Power by passing the steam through a Back Pressure Steam Turbine

NEED FOR CO-GENERATION

Grid power cost has gone up.

Uncertain and unreliable power availability.

High maintenance and running costs of D.G. Sets.

Heavy competition in industry leading to lower realizations and profitability

Helps conserve our environment

BUT MOST OF ALL FREE POWER

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