Facebook Twitter Linked In


  • Electric Power Production
  • Wind turbine
  • Gas turbine

BHEL our partner in power generation

To remain competitive and meet customers' expectations, BHEL lays great emphasis on the continuous upgradation of products and related technologies, and development of new products. BHEL's commitment to advancement of technology is reflected in its involvement in the development of futuristic technologies like fuel cells and superconducting generators. BHEL's investment in R&D is amongst the largest in the corporate sector in India. During the year 2011-12, BHEL invested Rs.11,620 Million on R&D efforts- 18% higher than the previous year.

R&D and technology development are of strategic importance to BHEL as it operates in a competitive environment where technology is a key driver. Technology development efforts undertaken by BHEL have led to the filing of patents and copyrights at the rate of nearly one a day, significantly enhancing the company's intellectual capital. In 2011-12, BHEL filed 351 patents and copyrights, enhancing the company's intellectual capital to 1,786 patents and copyrights filed, which are in productive use in the company's business. The company established four new Centers of Excellence, taking the total tally 13.

Significantly, BHEL is one of the only four Indian companies and the only Indian Public Sector Enterprise figuring in 'The Global Innovation 1000' of Booz & Co., a list of 1,000 publicly-traded companies which are the biggest spenders on R&D in the world. BHEL has also won the coveted CII-Thompson Reuters Innovation Award 2010 in the 'Hi-tech Corporate' category. The award recognizes BHEL's innovation and entrepreneurship in India based on number of patents and efficiency and impact of innovation as measured by patent citations.

The company's Corporate R&D division at Hyderabad leads BHEL's research efforts in a number of areas of importance to BHEL's product range. Research and Product Development (RPD) centres at all its manufacturing divisions play a complementary role. BHEL has introduced, in the recent past, several state of the art products. Commercialisation of products and systems developed by way of in-house Research and Development contributed Rs.95,120 Million corresponding to around 19.3% to the company's total turnover in 2011-12

Gas Turbines are one of the most efficient equipment for converting fuel energy to mechanical energy. How does a Gas Turbine work? What are auxiliary systems ? This article explains in simple terms the working of the main parts of the Gas Turbine.

Gas turbine functions in the same way as the Internal Combustion engine. It sucks in air from the atmosphere, compresses it. The fuel is injected and ignited. The gases expand doing work and finally exhausts outside. The only difference is instead of the reciprocating motion, gas turbine uses a rotary motion throughout.
This article details the three main sections of the Gas Turbine.


The compressor sucks in air form the atmosphere and compresses it to pressures in the range of 15 to 20 bar. The compressor consists of a number of rows of blades mounted on a shaft. This is something like a series of fans placed one after the other. The pressurized air from the first row is further pressurised in the second row and so on. Stationary vanes between each of the blade rows guide the air flow from one section to the next section. The shaft is connected and rotates along with the main gas turbine.



This is an annular chamber where the fuel burns and is similar to the furnace in a boiler. The air from the compressor is the Combustion air. Burners arranged circumferentially on the annular chamber control the fuel entry to the chamber. The hot gases in the range of 1400 to 1500 °C leave the chamber with high energy levels. The chamber and the subsequent sections are made of special alloys and designs that can withstand this high temperature.



LEED Certified green homes


In March 2000, the U.S. Green Building Council (USGBC), a non-profit organization dedicated to promoting the construction of energy-efficient buildings, released its Leadership in Energy and Environmental Design (LEED) program to the public (a limited-release pilot program had been made available two years earlier). LEED was created to help builders build more sustainable and environmentally friendly buildings than they traditionally would. The program also offers building operators guidance on how to make their buildings run more efficiently. The goal was to create a market-based incentive for reducing the impact that buildings have on the environment. [2]Today, LEED is one of the most well-known and popular types of green building ratings systems.

Energy Conservation

This building uses an onsite natural gas-fueled power plant to provide 70% of annual electrical power needs, and about 30% of peak demand (the highest electricity usage experienced at any one time). On-site power generation eliminates electrical transmission losses that are significant in the distribution grid which relies upon centralized generating plants. In a process called cogeneration, waste heat from the power plant is used to make steam which powers chilling machines to cool the building, as well as providing hot water for heating. The plant also produces all of the building’s hot water without outside energy.

Water Conservation

The use of waterless urinals in this very large building saves 8 million gallons of water per year alone. Rainwater is collected on roofs and used for cooling purposes and for flushing toilets. Overall, about 100 million gallons of water per year are saved, and virtually no storm water is allowed to drain to the city’s sewer system