2014-04-12 08:37:42

Generation from India’s 21 nuclear power reactors reached 35,333 GWh in financial year 2013-14, state-owned Nuclear Power Corporation of India Limited (NPCIL) said 1 April.

This represents an increase of 7.5% over the 32,860 GWh generated in 2012-13, according to figures from the Central Electricity Authority (CEA), and was above the FY target of 35,200 GWh, again according to CEA figures.

NPCIL said that generation was achieved from ‘the safe and reliable operation’ of 21 nuclear power reactors, including unit 1 of the Kudankulam plant (1000 MW), which was connected to the grid on 22 October 2013.

India currently has 4730 MW of installed nuclear capacity.

2014-04-12 08:32:51

Alstom said it has bagged a contract worth 40 million euros, or over Rs. 334 crore, from Bharat Heavy Electricals Ltd (BHEL) to supply three supercritical boilers for the North Karanpura super thermal power projects in Jharkhand.

Under the contract, Alstom will design the 660-MW supercritical boilers and supply identified pressure parts along with windboxes, a statement issued here said.

The units are expected to be commissioned in 2017. This project forms part of NTPC’s bulk 660-MW tender, the release said.

Alstom will also assist BHEL with technical advisors during the erection and commissioning of the units, it added.

Key components will be manufactured in the company’s facilities in Concordia, USA, as well as in Durgapur in India.

“This contract marks another step into our successful collaboration on supercritical boiler technology,” Alstom’s senior vice president of steam business, Andreas Lusch, said.

“The North Karanpura power plant will operate with higher efficiency and therefore produce more power with reduced carbon emissions.”

2014-04-12 05:09:36

Kirloskar Brothers Limited (KBL) has done India proud. The leading global fluid management company has collaborated with Tata Power and installed the World’s largest circulating water pumping system for Tata Power’s Mundra UMPP (Ultra Modern Power Plant).

A mammoth 10.5 million litres of water is circulated with the help of KBL’s 10 Concrete Volute Pump sets every minute. The Coastal Gujarat Power Limited (CGPL), Tata Power’s wholly-owned subsidiary, which has implemented the 4000 MW (800 MW x 5 units) UMPP requires massive amounts of water to condense the heat generated in the production of power.

Mr. Ravindra Ulangwar, Associate Vice President & Head – Power Sector, KBL said: “The World’s largest circulating water pumping system is a salute to Indian engineering. The Mundra UMPP is India’s first and most energy efficient coal-based thermal power plant using supercritical technology to create lower Greenhouse Gas emissions and its main power generation equipment is sourced from Japan and Korea. And here comes Indian technology to create a circulating water pumping system that rubs shoulders with the world leaders.�?

He added: “The layout of the pumping system is designed in such a way that large fluctuations in the sea water level due to tidal variation is taken care of. The motors are installed above the high tide level whereas pumps are installed in such a way that enough submergence is available during low tide levels. To accommodate this, motors are connected to the pump shaft with a specially designed cardon shaft. The length of the cardon shaft with universal coupling is 12 metres, making it one of the longest pump shafts. The entire pumping system is so large that it has become the largest circulating water system in the world.�?

In order to ensure the perfect flow pattern for smooth operation of the pumps, KBL also conducted a CFD [Computational Fluid Dynamics] analysis, followed by a physical model study for the fore-bay and sump at the Hydraulic Research Centre at Kirloskarvadi. A prototype physical model was built to 1:12 scale ratio. KBL also conducted a pump model study to establish the hydraulic performance of the concrete volute pumps.

As reported earlier, the Mundra UMPP will meet 2% of India’s power needs and 16 million domestic, industrial and agricultural consumers in power starved Gujarat. Rajasthan, Maharashtra, Haryana and Punjab will also benefit from this project.

2014-04-12 05:01:28

Toshiba Corporation announced that Toshiba JSW Power Systems Private Ltd. (Toshiba JSW), a Toshiba Group company based in Chennai, India has been awarded a contract by NTPC Limited, India’s largest state-owned energy service provider, for the supply of two 800MW super-critical steam turbine and generator island packages for the Darlipali Super Thermal Power Station in Darlipali, Orissa state. The new steam turbines will enter operation by early 2018. Toshiba JSW will carry out engineering, procurement and construction (EPC) of the complete steam turbine and generator island packages.

NTPC’s evaluation reflects the high performance and the reliability of Toshiba’s supercritical steam turbines and generators, and the company’s capabilities in integrating engineering and manufacturing functions. Toshiba can provide customers with competitive EPC solutions, and the company believes it is an acknowledgement of Toshiba’s excellent track record for successful completion of challenging projects around the world within contractual schedules.

In January 2014, Toshiba Corporation reinforced its thermal power generation business in India by integrating the engineering function of Toshiba India Pvt., Ltd. into Toshiba JSW Turbine and Generator Pvt., Ltd., a manufacturer of turbines and generators based in Chennai, Tamil Nadu state. The company, renamed Toshiba JSW, is positioned to provide full EPC solutions for thermal power plants, and is working to expand its business in India and the surrounding region.

Toshiba Group has extensive experience in the manufacture and delivery of supercritical steam turbine and generators in Japan and in overseas. In India, Toshiba Group is an undisputed market leader in supercritical steam turbines and generators in the 800MW category, having won orders for ten sets in all: five for Coastal Gujarat Power Limited, a subsidiary of Tata Power Company Limited, India’s largest private sector power utility, for its Mundra UMPP in Gujarat, which are now in successful commercial operation; three for NTPC’s Kudgi Super Thermal Power Project; and now two sets for the Darlipali Super Thermal Power Project. The company has also won an order for two 660MW supercritical steam turbine and generator island packages for Meja Thermal Power Project from Meja Urja Nigam Pvt. Ltd., a joint venture between NTPC and UPRVUNL.

Driven by strong economic growth, India’s power generation equipment market is expected to see demand growth of more than 16,000MW a year in the decade from 2007 to 2017, according to Indian government’s Eleventh (2007-2012) and Twelfth (2012-2017) Five-Year Plans. Coal-fired thermal power plants will account for over 60 percent of capacity growth, far surpassing other energy sources, and supercritical power plants will account for approximately 60 percent of thermal plants. The Indian government recognizes super-critical technology as a major tool for increasing generation capacity and efficiency while reducing emissions of greenhouse gases, and is strongly promoting adoption of the technology among India’s utility companies. Rapid growth in power demand is also expected in neighbouring countries.

Toshiba Corporation recently announced the opening of a new Global Engineering & Production Center at Toshiba Corporation’s Keihin Product Operations, which will operate as a global hub for key engineering and manufacturing functions for Toshiba Group’s energy-related business. Going forward, Toshiba Group will look to reinforce its market presence by making the best use of the Global Engineering & Production Center and the manufacturing and EPC capabilities of Toshiba JSW in India in markets around the world, including Asia, the Middle East and Africa, where demand for thermal power plants is strong.


Project Outline:

  1. Plant: Darlipali Super Thermal Power Station
  2. Client: NTPC Limited
  3. Location: Darlipali, Sundargarh, Orissa state, India.
  4. Scope: Two 800MW super-critical steam turbine and generator island packages

2014-04-12 04:53:40

ACC has taken an important step in energy conservation with the installation of a new Waste Heat Recovery System (WHRS) at its Gagal Cement Plant in Himachal Pradesh. This is the company’s first WHRS plant and also the first project in the state of Himachal Pradesh to deploy waste heat recovery technology.

The WHRS system harnesses waste heat discharged in the cement manufacturing process as exhaust gases and converts it into useful electrical energy. Heat from hot flue gases discharged as waste into the atmosphere from the cement manufacturing process is converted into electricity by channelizing them into a waste heat boiler that runs a steam turbine using Steam Rankine Cycle technology. The newly commissioned WHRS project, which can generate about 7.5 MW of electricity, comprises a suspension pre-heater boiler, an air quenching chamber boiler, a steam turbine generator, distributed control system, water-circulation system and a dust-removal system.

The electrical energy thus generated requires no additional fuel as it utilizes waste heat. The cost of generating such energy is significantly lower than that of a captive power plant and only a fraction of the cost of grid power.

Apart from the economy involved, WHRS units simultaneously offer several advantages. These systems play a vital role in energy conservation, they are entirely environment-friendly as they do not need any additional fuels to generate electricity and hence directly help conserve fuels and reduce overall carbon emissions.

The WHRS at Gagal is expected to lead directly to a reduction of over 44,000 tonnes of carbon dioxide (CO2) emissions per annum. Since this energy is based on waste heat and requires no additional fossil fuel, the energy thus produced is green energy that is equivalent to renewable energy.

Waste heat recovery can comprise a valuable and reliable alternate source of captive power generation to an industry like cement that is so energy-intensive. In view of the many advantages, units like these mark an important step in sustainable development.

Following the commissioning of the WHRS at Gagal, ACC is exploring the possibility of installing Waste Heat Recovery systems at some of its other cement plants.

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2014-04-12 04:44:45