materi kuliah mekanika fluida with Mr. Ragil Sukarno.ST.MT


 

  • PANJANG

    1 ft    = 12 in

    1 in    = 25,4 mm

    1 mile    = 5280 ft = 1760 yd = 1,609 km

    1 km    = 3281 ft = 1093,6 yd = 0,6214

  • LUAS

    1 in2     = 6,452 cm2

    1 in2    = 1550 in2 = 10,76 ft2 = 1,196 yd2

  • VOLUME

    1 ft3     = 7,481 US gallon = 28,32 liter

    1 in3    = 16,39 cm3

    1 US gallon = 3,785 liter

    1 liter    = 0,03531 ft3 = 61,02 in3 = 0,2642 US gallon

  • KECEPATAN

    1 ft/s    = 30,48 cm/s

    1 m/s    = 3,281 ft/s    = 3,6 km/h

    1 mile/h = 1467 ft/s = 1,609 km/h = 0,8684 knot

    1 km/h     = 0,278 m/s = 0,621 mil/h

  • PERCEPATAN

    1 ft/s2 = 0,3048 m/s2

  • MASSA BERAT

    1 lb    = 0,4536 kg = 7000 grains

    1 kg    = 2,205 lb

  • MASSA JENIS

    1 lb/ft3    = 16,02 kg/m3

    1 gr/cm3 = 62,43 lb/ft3

  • GAYA

    1 lb = 0,4536 kg (=0,4536 kp) = 4,448 N (newton)

    1 kp ( kilopond) = 2,205 lb = 9,807 N (newton)

  • TEKANAN

    1 psi (=1 lb/in2 ) = 0,07031 kg/cm2 = 51,71 mm Hg pada 0 o C

    1 kg/cm2 = 14,22 psi = 735,6 mm Hg pada 0 o C = 0,9807 bar

    1 atm (standart ) = 14,7 psi = 1,033 kg/cm2 = 760 mm Hg pada 0 o C

    1 bar = 105 N/m2 = 105 Pa = 1,0197 kg/cm2 = 14,50 psi

  • MOMEN PUTAR

    1 lb ft = 0,1383 kgm = 1,305 Nm

    1 kgm = 7,233 lb ft = 9,807 Nm

  • ENERGI DAN KERJA

    1 ft lb = 0,1383 mkg = 1,356 J = 1/778 BTU

    1 mkg = 7,233 ft lb = 9,807 J = 1/427 kcal

    1 J = 1 Ws = 107 erg

    1 kcal = 427 mkg = 4187 J = 3,969 BTU

    1 BTU = 778 ft lb = 1055 J = 0,252 kcal

    1 hp hr = 2545 BTU = 0,7475 kWh

    1 PS hr = 632,4 kcal = 0,7355 kWh

  • DAYA

    1 W = 1 J/s = 1/1000 kW

    Daya kuda metrik : 1 PS = 75 mkg/s = 0,7355 kW = 0,9863 hp

    Daya kuda non-metrik : 1 hp = 550 ft lb/s = 0,7475 kW = 1,014 PS

  • TEMPERATUR

    o F     = 1,8 o C + 32

    o R    = o F + 460 = 1,8 o K

    o K    = o C + 273

  • KONSTANTA GAS UNIVERSAL

    Ř = 1,986 BTU /(mole o R ) = 1545 ft lb / (mole o R )

    1,986/cal/(gmole o K) = 848 ( m kg/k mole o K )

  • LAIN – LAIN

    1 cal/gram = 1,8 BTU /lb

    1 cal/(gram o K) = 1 BTU / ( lb o R )

1 Btu/lb = 0,56 cal/gram

19040 Btu/lb = 19040 x 0,56 cal/gram

        = 10662 cal/gram

        = 10,6621

0,001 k cal/gram

semoga bermanfaat

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