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Sunday, 28 April 2013


                                               stair climbing robot

                                       modification to paper cutting and rewinding machine

Saturday, 13 April 2013

On 4/13/2013 05:35:00 pm by Unknown in    2 comments

Dr Narla Tata Rao Thermal Power Station


Dr Narla Tata Rao Thermal Power Plant is located at Vijayawada in Andhra Pradesh. The power plant is one of the coal-based power plants of APGENCO.
Dr Narla Tata Rao Thermal Power Plant is also known Vijayawada Thermal Power Plant. It was developed under 4 stages, with the project cost of Rs 193 Crores and Rs 511 Crores respectively. Again with an investment of RS 840 Crores 2 units were commissioned under III Stage. The seventh unit of 500 MW was commissioned on 2009. The station stood first in country during 94-95, 95-96, 96-97, 97-98 and 2001-02 by achieving the highest plant load factor. The station has received many prestigious awards from various organisations. The station has received Meritories productivity awards for twenty consecutive years and Incentive award for eight consecutive years.

Installed Capacity


StageUnit NumberInstalled Capacity (MW)Date of CommissioningStatus
Stage I121001-11-1979Running
Stage I221010-10-1980Running
Stage II321005-10-1980Running
Stage II421023-08-1990Running
Stage III521031-03-1994Running
Stage III621024-02-1995Running
Stage IV750006-04-2009Running
Dr Narla Tata Rao Thermal Power Station
Dr Narla Tata Rao Thermal Power Station is located in Andhra Pradesh
Location of Dr Narla Tata Rao Thermal Power Station
CountryIndia
LocationVijayawadaKrishna,Andhra Pradesh
Coordinates14.49°N 78.98°E   
StatusOperational
Commission dateUnit 1: November 1, 1979
Unit 2: October 10, 1980
Unit 3: October 5, 1980
Unit 4: August 23, 1990
Unit 5: March 31, 1994
Unit 6: February 24, 1995
Unit 7: April 6, 2009
Operator(s)APGENCO
Power station information
Primary fuelCoal-fired
Generation units6 X 210 MW
1 X 500 MW
Power generation information
Installed capacity1760.00 MW

Friday, 12 April 2013

On 4/12/2013 02:12:00 am by Unknown in    No comments

Internal combustion engine

The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine (ICE) the expansion of the high-temperature and high-pressure gases produced by combustion apply direct force to some component of the engine. The force is applied typically to pistonsturbine blades, or a nozzle. This force moves the component over a distance, transforming chemical energy into useful mechanical energy. The first commercially successful internal combustion engine was created by Étienne Lenoir.
             Animation of two-stroke engine in operation, with a tuned pipe exhaust.

The term internal combustion engine usually refers to an engine in which combustion is intermittent, such as the more familiar four-stroke and two-stroke piston engines, along with variants, such as the six-stroke piston engine and the Wankel rotary engine. A second class of internal combustion engines use continuous combustion: gas turbinesjet engines and most rocket engines, each of which are internal combustion engines on the same principle as previously described.


                 An automobile engine partly opened and colored to show components.

The ICE is quite different from external combustion engines, such as steam or Stirling engines, in which the energy is delivered to a working fluid not consisting of, mixed with, or contaminated by combustion products. Working fluids can be air, hot water, pressurized water or even liquid sodium, heated in some kind of boiler. ICEs are usually powered by energy-dense fuels such as gasoline or diesel, liquids derived from fossil fuels. While there are many stationary applications, most ICEs are used in mobile applications and are the dominant power supply for cars, aircraft, and boats.


Thursday, 11 April 2013

On 4/11/2013 03:10:00 pm by Unknown   No comments

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