teknik mesin konversi satuan

STEAM TABLES AND MOLLIER DIAGRAM

TABLE V
Conversion Factors

Force

1 newton = 1 kg-m/sec2
= 0.012 kgf
1 kgf = 9.81 N

Pressure

1 bar = 750.06 mm Hg
= 0.9869 atm
= 105 N/m2
= 103 kg/m-sec2
1 N/m2 = 1 pascal
= 10 – 5 bar
= 10 – 2 kg/m-sec2
1 atm = 760 mm Hg
= 1.03 kgf/cm2 = 1.01325 bar
= 1.01325 × 105 N/m2

Work, Energy or Heat

1 joule = 1 newton metre
= 1 watt-sec
= 2.7778 × 10 – 7 kWh
= 0.239 cal
= 0.239 × 10 – 3 kcal
1 cal = 4.184 joule
= 1.1622 × 10 – 6 kWh
1 kcal = 4.184 × 103 joule
= 427 kgfm
= 1.1622 × 10 – 3 kWh
1 kWh = 8.6 × 105 cal
= 860 kcal
= 3.6 × 106 joule
1 kgfm =
1/427kcal=9.81 joules

 Power

1 watt = 1 joule/sec = 0.86 kcal/h
1 h.p. = 75 mkgf/sec = 0.1757 kcal/sec
= 735.3 watt
1 kW = 1000 watts
= 860 kcal/h