Appendix A-3

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School

University of British Columbia**We aren't endorsed by this school

Course

APSC 252

Subject

Mechanical Engineering

Date

Dec 21, 2024

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Uploaded by CaptainBaboon4701

TABLE A.1 (continued) Conversion Factors Heat flux (per unit area) 1 W/m? = 0.316 998 Btu/h-ft? Heat-transfer coefficient (k) 1 W/m?-K = 0.176 11 Btu/h-ft2-°R Length (L) 1mm=0.00lm=0.1cm 1m =3.280 84 ft = 39.370 in. 1km =0.621 371 mi 1 mi =1609.3 m (US statute) Mass (m) 1kg =2.2046231bm 1 tonne = 1000 kg 1 grain = 6.479 89 x 107> kg Moment (torque, 7) 1 N-m = 0.737 562 Ibf-ft Momentum (mV) 1 kg-m/s =7.232 94 Ibm-ft/s = 0.224 809 1bf-s Power (Q, W) 1w =1J/s=1N-m/s = 0.737 562 1bf-ft/s 1 kW =3412.14 Btu/h 1 hp (metric) = 0.735 499 kW 1 ton of refrigeration = 3.516 85 kW Pressure (P) 1 torr =1 mm Hg [0°C] 1 mm Hg [0°C] = 0.133 322 kPa 1 m H,0 [4°C] =9.806 38 kPa lecm =0.01 m = 10 mm = 0.3970 in. 1Pa =1N/m? = 1 kg/m-s? 1 bar = 1.0 x 10°Pa = 100 kPa 1 atm =101.325 kPa =1.013 25 bar =760 mm Hg [0°C] =10.332 56 m H,0 [4°C] 1 Btu/h-ft> = 3.154 59 W/m? 1 Btu/h-ft-°R = 5.678 26 W/m?-K 1ft =12in. 1in. =2.54 cm = 0.0254 m 1ft =0.3048 m 1 mi = 1.609 344 km 1yd =0.9144 m 1 Ibm = 0.453 592 kg 1 slug = 14.5939 kg 1 ton =20001bm 1 1bf-ft = 1.355 818 N-m 1 Ibm-ft/s = 0.138 256 kg-m/s 1 1bf-ft/s =1.355818 W =4.626 24 Btu/h 1Btu/s =1.055056 kW 1 hp (UK) = 0.7457 kW = 550 Ibf-ft/s =2544.43 Btu/h 1 ton of refrigeration = 12 000 Btu/h 1 1bf/in.? = 6.894 757 kPa 1 atm = 14.695 94 Ibf /in.2 =29.921 in. Hg [32°F] =33.8995 ft H,0 [4°C] 1in. Hg [0°C] = 0.491 15 Ibf/in. 1in. H,0 [0°C] = 0.0361 26 Ibf/in.?