Mechanical Engineering

deemed generation means means the energy which a thermal power generating station was capable of generating but could not generate due to reasons beyond the control of the generating station or on account of non-availability of Transmission Licensee's transmission lines or on receipt of backing down instructions from the State Load Dispatch Centre resulting in shortage of various fossil fuel such as coal n all...

The basis of differentiation is end user. A thermal power plant produces electricity to sell the same to different end users through grid. But, in case of a captive thermal power plant generation of electricity generally is to meet the demand of power by the parent industry. For e.g. an Alumunium smelter plant requires huge quntity of elctric energy to operate. To secure undisrupted source of energy it may set up its own power plant which in turn can be termed as the captive power plant. But, in certain cases excess electricity can be sold to the market.

dc motors can be operated at no load as well as at load condition.But by using the swin burns test the efficiency can be calculated at no load which is more benficial than load test.At industries this swin burns test is used because for load test we have to give separate supply for the load to run.In no load test that power is saved.

The exhaust temperature of gas turbines is very high due to the large amount of energy input into the inlet air by the combustion of fuel in the combustion chamber.

swept volume

distance between the centre of two parallel cylinderin the sine bar

Never. Throttling will erode the valve seat and then the valve will never shut off completely.

When ur hot and ur working then it is hot working, if ur cold and ur working then it is cold working

Vertical milling machine and horizontal milling comparison, the main difference is the spindle vertical layout, except for different spindle arrangement, table can move up and down, vertical milling cutter with relatively flexible, wider scope. Use cutter, cutter support, drill and so on. Can keyway milling, milling flat and boring.

0.282-0.283 lb/in3

Depends on the manufacturer. It'll typically be a type of steel.. a lower end branch, such as the Pittsburgh line from Harbor Freight, might use Chrome Vanadium, whereas a higher end brand, such as Snap-On, will use a grade of steel which exceeds tool grade steel.

In digital scroll compressors, the motor runs continuously at full speed, and the capacity of the compressor is adjusted by a digitally controlled mechanical unloader (slide bar) which adjusts the vertical positioning of the orbital scroll with respect to the fixed scroll thereby reducing its capacity.

In inverter scroll compressors, the relative positions of the scrolls does not change, but the speed of the motor is adjusted by a variable speed drive, which adjusts the capacity.

The inverter scroll compressor is more energy efficient at part load conditions than a comparable digital scroll compressor. The digital scroll compressor will more closely match a specified load, but is not as energy efficient as a comparable inverter driven compressor. Both types of compressors have associated built-in mechanisms to maintain compressor lubrication at low flow.

no you have to go to Australia

LC filter

It is a combination of inductor and capacitor filter. Here an inductor is connected in series and a

capacitor is connected in parallel to the load as shown in fig 5.6. As discussed earlier, a series inductor

filter will reduce the ripple, when increasing the load current. But in case of a capacitor filter it is

reverse that when increasing current the ripple also increases. So a combination of these two filters

would make ripple independent of load current. The ripple factor of a chock input filter is given by

Since the d.c. resistance of the inductor is very low it allows d.c. current to flow easily through it. The

capacitor appears open for d.c. and so all d.c. component passes through it. The capacitor appears open

for d.c. and so all d.c components passes through the load resistor RL.

Bleeder resistor

For optimum functioning, the inductor requires a minimum current to flow through, at all time. When

the current falls below this rat, the output will increase sharply and hence the regulation become poor.

To keep up the circuit current above this minimum value, a resistor is permanently connected across the

filtering capacitor and is called bleeder resistor. This resistor always draws a minimum current even if

the external load is removed. It also provides a path for the capacitor to discharge when power supply is

turned off.

Tool inserts can be made of industry grade diamond, and various other ceramics such as tungsten carbide - which is most common. Tungsten tips are made by pressing the powered material into the tool tip shape (usually a diamond/kite shape for turning tools, triangles for milling) and then heated so the particles bond to each other. These tips can be fixed to the tool body and then used to machine, on a lathe or mill. The advantage of tip tooling is if the tip breaks only the tip needs replacing not the whole tool, or having to grind the worn tool. However tungsten will not tolerate intermittent cuts as well as HSS, such as taking the corners off a square bar in a lathe.

ASTM A105 - For ambient- and higher-temperature service in pressure systems.

ASTM A350 - intended primarily for low-temperature service and requiring notch toughness testing.

A: It is any system where there is negative feedback to control its behavior

very basically bracing is used so structure doesn't fall over.

it resists the lateral forces created from wind, earthquake and other loads.

A hot tank oil system is one, in which returning oil in not cooled when it comes back to the tank . In a cold tank it is cooled before it reaches the tank.The only difference is the location of the oil cooler whether its downstream or upstream.

The function of IGV in a gas turbine is to prevent surges and stall conditions.

Manual drawings are usually hand drawn on mylar sheets using a drafting table. Computer aided can mean several things. Using the computer to simulate a drafting table, or solid modeling that can be copied to the machines of many. This would include CAD for design engineers, CAM for manufacturing people, CAQ for quality control, etc.

59RC

The material's Luster (lustrous would mean it reflects light) (dull is the opposite)

a helical spring has N turns of coil of diameter D, and a second spring made of same material and of same wire diameter has N/2 turns of coil of diameter 2D. if stiffness of first spring is k, then stiffness of second spring is

The purpose of a pressure relief valve in a geyser is to release the pressure created inside due to evaporation of water.