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Mechanical Engineering

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Specialised equipments

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Engineering technology
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  2. The main functions of the governing system of a large turbine-generator unit used for electricity production via an extensive power network are: To contain the speed rise within acceptable limits should the unit become disconnected from the load. To control the steam valve positions (and hence the load generated) in response to signals from the operator, or from a separate station automatic control system. To control the initial run-up and synchronisation of the machine. To assist in matching the power generated to that demanded by responding to network frequency change
  3. HAZOP, which stands for hazard and operability study, is used to identify abnormalities in the working environment and pinpoint the root causes of the abnormalities. It deals with comprehensive and complex workplace operations, which, if malfunctions were to occur, could lead to significant injury or loss of life. HAZID stands for hazard identification. It is more of a general risk analysis tool designed to alert management to threats and hazards as early in the process as possible. The classification is made on the basis of probability and consequences. A HAZID study provides a qualitati
  4. vibration is useful in many industrial applicable like material handing system, like screening..
  5. what is called positive displacement? where the term positive displacement is applicable? Is there is any other term for positive displacement? Where it is beneficial over there opposites? everyone to answer about above...
  6. What are the different type of gear box? What are the different between general purpose and special purpose gearbox? what are the safety feature for gearbox in hazardous area?
  7. cavitation occurs at pump inlets due to lower pressure at suction (lower NPSH or dissolved gas in liquid). where is vapour lock is in piping system due to not providing the venting arrangement.
  8. Triple-volute centrifugal pump can handle up to 20 percent entrained air, where a typical centrifugal pump can only deal with air entrainment levels of 5 to 8 percent. Along with entrained air, cavitation is a top candidate for causing pump problems. Cavitation occurs when the pump’s internal pressures are lower than the vapor pressure of the liquid which results in rapid vapor formation within the pump which collapse as the liquid is swept into the higher pressure regions of the pump. The cavitation effect may cause material damage to the impeller and possibly casing, which is resul
  9. Vibration is usefull in many cases, conditions is only controlled vibrations..explore the case where vibration is useful and in what way.. Example: 1. Vibration is usefull in all musical instruments, music is created beacuse of controlled vibration. Without vibration music is not possible. Explore more benifits of vibration in industries.

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