teknik pengecoran jilid 3 smk

Teknik pengecoran
G. System satuan yang digunakan dalam konversi energy menurut
Standar Internasional (SI Units)
1 meter = 3,28 ft.
1 kg = 2,205 Lb.
1 ton = 1 Mg
= 2205 Lb
= 0,984 Long ton
= 1,103 Short
1 0 Celcius = 273 0 0 K (Kelvin)
n 0 Celcius = 32 + 1,8. n 0 F (Fahrenheit)
1 radial = 57,3 derajat suhu ( 0 )
1 Mole = 6,02 x 10 26 molekul
1 m 2
= 10,76 ft 2
Luas
1 m 3 = 10 3 liter
= 35,3 ft
Volume
3
= 220 UK gl
= 264 US gl
1 kg/m 3 = 10 -3 Mg/m 3 = 0,0624 lb/ft
Density
3
1 Kg/det m 2
= 3600 kg/jam m 2 = 738 Jam
Flux massa.
1 N (Newton) = 1 kgm/det 2 = 10
Gaya
5 dyne
= 0,2248 lbf.
1 (P) Pascal = 1 N/m 2 = 10
Tekanan
-5 bar
= 1,45 x 10 -4 pasi
= 0,785 ft lbf
= 9,84 x 10 -4 BTU
= 2,78. 10 -7 KW jam
1 Watt = kg/m 2 /det 2
= 10
Energy
7 erg
= 0,239 kal
= 0,738 ft lbf.
1 eV = 0,1602 x 10 -18 Joule Electron Volt
1 Watt = 1 J/det
= 0,86 kkal/jam
= 1,341 x 10
Flux panas
-3 dk
= 3,41 BTU/jam
= 1 kg m 2 /det
1 W/ 0 K m 2 = 0,176 BTU/ft 2 jam 0 F Koewfisien perpindahan
panas
1 MJ/kg = 26,8 BTU/ft 3 = 239 kkal/kg
= 430 BTU/lb
Nilai kalor/kalor laten
Hardi Sudjana Page 515