akpower

@akpower-WAuq3q Member

Member since: Joined Aug 2011
Last active: Active 14 years ago
Member number: Member #101,721

Posts: 22
Replies: 15
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Replied #Threads 14 years ago

Do turbines cause suction ?

Turbines which are high speed machines will definitely generate suction at inlet as the blade design of turbine pushes the working fluid to next stage.This is...
Replied #Threads 14 years ago

Boiler & Furnace

Mr.Hammer_Time, Since modification of furnace will be a costly,time consuming affair as well as redesigning will delay the process, changing the vats position from series to...
Replied #Threads 14 years ago

Difference between gas and steam power cycle

1]Steam (superheated) has all properties of a gas with reference to heat transfer.Additionally, when condensed it is easy to handle it in liquid form.It is available...
Replied #Threads 14 years ago

best turbine performance

We all know the governing principle of engine/rotational machines.Steam flow is function dependent on area & velocity.Any control valve with fixed cross sectional area will admit.....
Replied #Threads 14 years ago

Efficient Energy Reservoir Project - Help Needed!

The idea of energy storage,presently feasible as Mr.Bioramani suggested is available in pumped storage form.There are many peaking hydro power plants that supply during peak demand...
Replied #Threads 14 years ago

Higher efficiency, greater availability - Hence large waste of power!

Awareness about energy costs and depleting resources is the only solution for conservation of energy in any form.Global alerts are needed on mass scale to educate...
Replied #Threads 14 years ago

What is the highest transmission voltage in India?

Hi Karad123, Exact answers to your queries are 1]Transmission voltage in India (highest) is 750KV AC and these lines are erected by Power Grid Corporation for...
Posted #Threads 14 years ago

Design changes in consumption of electrical appliances.

When you cannot generate at-least conserve it. This idea prompted many scientists, engineers, to devise improved appliances for daily use. Most popular amongst them being CFL...

1 reply
Posted #Threads 14 years ago

Storage of electricity

When we know the principle of `Storage for rainy day’., ,electricity was also stored for portability, emergencies, and remote application. Latest technologies are improving the cap...

11 replies
Posted #Threads 14 years ago

Depleting coal stocks around the world ring alarm bells for Power Industry

Coal (Natural resource ) deposits are depleting day by day as the major guzzler of coal are thermal power plants using coal as a primary fuel....
Posted #Threads 14 years ago

Power plants based on principles of Rankine Cycle.

Almost all thermal power plants around the world using coal as fuel are based on principles of Rankine cycle. Maximum cycle efficiency is 40 to 42%....
Replied #Threads 14 years ago

New concept for auxiliary steam in power plant design.

I wanted to know why the two stage reduction? Requirement of auxiliary steam in quality & quantity are alredy calculated. For startup purpose, if aux. steam...
Posted #Threads 14 years ago

New concept for auxiliary steam in power plant design.

In a 150 MW turbine ,instead of reducing main steam pressure directly to auxiliary steam pressure requirement, it is derived after HP turbine bypass i.e. from...

4 replies
Replied #Threads 14 years ago

How is Boiler Constructed?

I am a power engineer.I have gone through the discussion between Mr.Bioramani Sir & Mr Rebellionofrebel.While replying to issue of how boiler is constructed, both of...
Replied #Threads 14 years ago

best turbine performance

Turbine follow mode or boiler follow mode refers towhich generation (MW ) to be hooked up. If hooked to turbine, it will vary as per the...
Posted #Threads 14 years ago

best turbine performance

When turbine is operated at constant inlet steam pressure or variable pressure mode,steam consumption drops or increases. What is the reason & why?😕

5 replies
Posted #Threads 14 years ago

high steam flow in turbine

We have a 150MW steam turbine with specific steam consumption of 3.16 T/KWH.However actual steam consumption when measured is 3.4T/KWH. Steam pressure & temp is 140kg/cm2...
Replied #Threads 15 years ago

Pulverisation of coal in Thermal Power Plant

Thanks Tina .It is an accepted fact that auxiliary consumption in a power plant is 10% or less having turbo feed pumps.In no case the power...
Replied #Threads 15 years ago

Low temperature heat recovery methods in power generation

Mr. Bioramani has rightly pointed out. My query was about recovery of heat with low temperature but above atmospheric temp. Economics of method will depend upon...
Replied #Threads 15 years ago

Heat Balance calculations

The data provided is insufficient. Data required is :- 1) Quantity of water Q 2) Quantity of fuel (HSD) 3) What is capacity i.e. 20lacs Kcal...
Posted #Threads 15 years ago

Pulverisation of coal in Thermal Power Plant

Maximum level of pulverization in popular Bowl & Roller coal mills(XRP-880,XRP-630) is 70 mesh size. This invariably results in unburnt in slag ash & sometimes in...

4 replies
Posted #Threads 15 years ago

Voltage levels in High Tension Transmission lines

Generally it is observed that electricity is transmitted in multiples of 11KV,such as 110KV,220KV,33KV,440KV etc .Why it is so ?. How-ever recently it is found that...

1 reply
Posted #Threads 15 years ago

Alternative energy generators (Solar Power)

Depleting natural resources such as coal, petroleum products, and uncontrolled deforestation for urban development, have compelled visionaries to tap solar power as a sustainable a...

1 reply
Posted #Threads 15 years ago

Demineralised Water makeup in Boilers of Power Plant

In standard power plant, having boiler pressure > 80kg/cm² ; D.M Water is used. Generally makeup water is added in hot-well of condenser where steam condensed...

1 reply
Posted #Threads 15 years ago

Fly ash sepaartion from Boiler flue gases.

In a thermal power plant, fly ash particles generated from the combustion process of coal are separated in Electrostatic Precipitator (ESP) or by using filter bags...

1 reply
Replied #Threads 15 years ago

Increaseing power output from installed thermal power generation

We already have all essential equipments with standard power plant. These are designed for given output. With modern instrumentation including latest software etc. It is regular...
Posted #Threads 15 years ago

Coal mill grinding roller/ball material in power plant

Generally Ni-Hard II or IV is used as grinding roll or ball material. What is maximum running life is expected from this material in terms of...

1 reply
Posted #Threads 15 years ago

Boiler tube leakages in power plant

With deteriorating coal qualities in Indian coal,boiler tube leakages have become a chronic problem for boiler outages. In spite of improving flame geometry , regular soot...
Replied #Threads 15 years ago

CFBC Boilers at super critical pressure

CFBC boiler are Circulating Fluidized Bed Combustion Boilers.The difference is fuel i.e. coal is burned in fluidized state. Earlier boilers had a static or rotating grate...
Posted #Threads 15 years ago

CFBC Boilers at super critical pressure

With advent of CFBC Boilers , a new page is opened in power generation.What is maximum rating of a CFBC boiler & Turbo-alternator presently operative in...

2 replies
Posted #Threads 15 years ago

Addition of feed water heaters to raise feed water temp.to its saturation point

Generally feed water heaters either low pressure & high pressure are using bleed steam from turbine to raise feed water temp. to as high as possible...
Posted #Threads 15 years ago

Low temperature heat recovery methods in power generation

The designers take utmost care for heat recovery from fuels while designing power plant equipments as well as preservation of it for maximum utilization .With advent...

11 replies
Posted #Threads 15 years ago

Better heat transfer fluid other than water in power generation

Presently water (treated) is extensively used worldwide in thermal power generation .The three factors mainly in favor of water being 1) abundantly available in nature 2)...

2 replies
Posted #Threads 15 years ago

Pumping wet steam against boiler pressure

What are the problems in pumping wet steam say at 0.2 kg/ sq. cm to boiler pressure? I think that instead of extracting steam to vacuum...
Posted #Threads 15 years ago

Increaseing power output from installed thermal power generation

I would like to know whether it is possible to increase output from existing thermal power plant either in terms of heat input,efficiency, vacuum , heat...

5 replies
Posted #Threads 15 years ago

Generator output with reference to winding temperature

An electricity generator when operated at more than rated load; increases its winding temperature which restricts its continuous operation at higher load.Most of the new generation...

1 reply
Posted #Threads 15 years ago

Increasing capacity of given turbine

Steam turbines are designed for specific output. The input i.e. steam at designed pressure & temperature if increased by say 10% whether the output will increase...