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  • Users: shipvibration
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  1. shipvibration

    built in centrfugal pumps of medium speed diesels

    hypothetical Q: If a centrifugal p/p driven by the engine (or any type of P/p)is fitted for fresh water cooling duties, how will it function when the engine is reversed? any ideas will help.. tvm
  2. shipvibration

    microbial degradation of lube oil

    can somebody provide some info on microbial degradation of lube oil...sites...book sources etc.,? tvm
  3. shipvibration

    Laboratory tests for Lube oils

    where can one find all the tests (coded by ASTM)for various Lubricating oils and Fuel oils? thanx
  4. shipvibration

    combustion noise and mechanical noise

    that is interesting! airborne and structure borne noises: are there any definite decibel level values for such noises? e.g., turbocharger noise, combustion noise, camshaft/poppet valve noises, crosshead slamming noises etc., any help on this? thanx.
  5. shipvibration

    liquid coagulant in HP boilers

    One Drew Ameroid booklet says that Liquid Coagulant is not to be used in High Pressure boilers. any ideas on why? what other options are available for HP boilers? thanx.
  6. shipvibration

    combustion noise and mechanical noise

    thanx for the response. some doubts...when the engine is running(say a big marine diesel of @15000BHP, can we differentiate by ears the combustion noise? self had an experience in which a sharp noise(charactristic of mechanical fouling)in an engine of such size turned out to be from an airlocked...
  7. shipvibration

    Number of Safety Valves on a Steam Boiler

    1. each boiler requires atleast 1 safety v/v but if heating surface exceeds 500sq.ft then another v/v is required. also if the boiler is electric powered with power input >500kw, then more than 1 v/v is reqd. when more than 1 v/v of differing size is fitted then the relieving capacity of the...
  8. shipvibration

    combustion noise and mechanical noise

    are there any analytical methods to find the difference between combustion noise and mechanical noise in a diesel engine? under normal running what are the factors that indicate the noise emnating is from either of the sources? any parameters(frequency etc.,)? any ideas?
  9. shipvibration

    axila and centrifugal blowers

    1.given a particular volume what are the factors to be considered for installing an axial flow blower or a c/fugal blower? 2. where exactly are axial flow fans used and why? 3. which application are c/fugal blowers used and why? 4. what is the difference in design considerations of a centrifugal...
  10. shipvibration

    air and oil filters

    can someone tell me the design factors involved in manufacture of air and oil filters?(e.g beta factor etc.,) any sites with basic info on filter types and design ? thanx.
  11. shipvibration

    quartzoid bulb for sprinkler

    i have found the info.. just sharing it now.. the following are used in the sprinklers: 1. an expanding liquid selected from the group consisting of toluene, a xylene, trichloroethylene, tetrachloroethylene and a mixture thereof. 2. lower monohydric aliphatic alcohol, a lower polyhydric...
  12. shipvibration

    air compressor

    help with these Qs,please! 1.what is the material of the bursting disc provided on the jackets of air compressors? 2.what are the materials used in the air side relief v/v? 3. what is the composition of fusible plugs and the ranges? thanx
  13. shipvibration

    quartzoid bulb for sprinkler

    can somebody provide info on the "special high expansion"liquid used in quartzoid bulbs of sprinkler systems?
  14. shipvibration

    torque spanner

    can anyone explain in simple terms(mechanics) how an adjustable torque spanner or torque wrench works? thanx.
  15. shipvibration

    ms plates used for ship construction

    i ma repeating this from yet another forum because i got no response> Q: are there any chemical tests carried out on plates used for constructionof ships? what are the normal DT and NDT on materials used for ship construction and allowable standards for the same ? tahnx.
  16. shipvibration

    spike energy

    can someone explain spike energy and modes of vibration in simple terms? thanx.
  17. shipvibration

    ms plates used for ship construction

    info reqd on chemical and other DT/NDTests done on plates used for ship construction.thanx
  18. shipvibration

    instruments for measuring vibration

    what are the usual instruments used for vibration analysis of machinery?any sites..some info..please.
  19. shipvibration

    air compressor intercooler design

    it is common to put fluids with low heat transfer coefficient on the shell side of heat exchangers. but in many air compressors the air is placed inside the tubes.what is the design factor consideration ? thanx.
  20. shipvibration

    tests on steel plates

    while steel plates are used for various constructions, what are the various tests(NDT & otherwise)done for material assesment? are there any chemical tests done on steel plates used for ship construction? thanx

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