ME%20200%20Equation%20Sheet%202011%20Summer0

ME%20200%20Equation%20Sheet%202011%20Summer0 - BASIC...

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Unformatted text preview: BASIC EQUATIONS FOR ME 200 (1) Work Relations (2) First Law Relations and Mass Conservation (3) Second Law Relations PROPERTY RELATIONS FOR ME 200 (4) Pressure, Temperature, and Energy Relations (5) Entropy Relations (and isentropic processes) (6) EFFICIENCY AND CYCLE RELATIONS FOR ME 200 Device Efficiencies and Cycle Analyses UNITS CONVERSION TABLE FOR ME 200 Mass and Density Length Velocity Volume 1 kg = 2.20 lbm 1 g/cm3 = 62.4 lbm/ft3 1 cm = 0.394 in 1 m = 3.28 ft 1 km/h = 0.621 mile/h 1 cm3 = 0.0610 in3 1 m3 = 35.3 ft3 1 L = 10-3 m3 1 L = 0.0353 ft3 1 N = 1 kg-m/s2 1 N = 0.225 lbf 1 Pa = 1 N/m2 = 1.450 x 10-4 lbf/in2 1 bar = 105 N/m2 1 atm = 1.01 bars 1 J = 1 N-m = 0.738 ft-lbf 1 kJ = 738 ft-lbf 1 kJ = 0.948 Btu 1 kJ/kg = 0.430 Btu/lbm 1 W = 1 J/s = 3.41 Btu/h 1 kW = 1.34 hp 1 lbm = 0.454 kg 1 in = 2.54 cm 1 ft = 0.305 m 1 mile/h = 1.61 km/h 1 in3 = 16.4 cm3 1 ft3 = 0.0283 m3 1 gal = 0.134 ft3 1 gal = 3.79 x 10-3 m3 1 lbf = 32.2 lbm-ft/s2 1 lbf = 4.45 N 1 lbf/in2 = 6890 Pa 1 atm = 14.7 lbf/in2 1 ft-lbf = 1.36 J 1 Btu = 778 ft-lbf 1 kcal = 4.19 kJ 1 Btu/h = 0.293 W 1 hp = 2545 Btu/h 1 hp = 550 ft-lbf/s 1 hp = 0.746 kW 1 ton = 12,000 Btu/h = 3.52 kW 1 Btu/lb-R = 4.19 kJ/kg-K Force Pressure Energy and Specific Energy Energy Transfer Rate Specific Heat Universal Gas Constant 1 kJ/kg-K = 0.239 Btu/lb-R 1 kcal/ kg-K = 1 Btu/lb-R Standard Acceleration of Gravity Standard Atmospheric Pressure Temperature Relations T(R) = 1.8T(K) T(C) = T(K) 273 T(F) = T(R) 460 ...
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This note was uploaded on 03/14/2012 for the course ME 200 taught by Professor Gal during the Summer '08 term at Purdue.

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