Air, assumed incompressible and inviscid, flows into the outdoor cooking grill through nine holes of 0.40-in....

 

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Air, assumed incompressible and inviscid, flows into the outdoor cooking grill through nine holes of 0.40-in. diameter as shown below. If a flowrate of 40 in^3/s into the grill is required to maintain the correct cooking conditions, determine the pressure within the grill near the holes. Input your pressure in Pa of gauge pressure (check sign). Use properties of air at 90 F listed in Table B.3. зали мм м 2000000 LT 9 holes, each 0.40-in. diameter Table B.3 Physical Properties of Air at Standard Atmospheric Pressure (BG/EE Units)" Temperature (°F) -40 -20 0 10 20 30 40 50 60 70 80 90 100 120 140 160 180 200 300 400 500 750 1000 1500 Density, p (slugs/ft³)b 2.939 E3 2.805 E3 2.683 E3 2.626 E-3 2.571 E-3 2.519 E-3 2.469 E-3 2.420 E-3 2.373 E-3 2.329 E3 2.286 E3 2.244 E-3 2.204 E3 2.128 E3 2.057 E3 1.990 E 3 1.928 E3 1.870 E-3 1.624 E 3 1.435 E 3 1.285 E3 1.020 E 3 E-4 8.445 6.291 E 4 Specific Weight", (Ib/ft³) 9.456 E-2 9.026 E-2 8.633 E 2 8.449 E-2 8.273 E 2 8.104 E-2 7.942 E-2 7.786 E 2 7.636 E-2 7.492 E 2 7.353 E-2 7.219 E-2 7.090 E- 2 6.846 E 2 6.617 E 2 6.404 E-2 6.204 E-2 6.016 E 2 5.224 E-2 4.616 E2 4.135 E-2 3.280 E-2 2.717 E- 2 2.024 E 2 Dynamic Viscosity, " (lbs/ft²) 3.29 E-7 3.34 E-7 3.38 E-7 3.44 E-7 3.50 E-7 3.58 E-7 3.60 E 7 3.68 E-7 3.75 E-7 3.82 E-7 3.86 E-7 3.90 E-7 3.94 E 7 4.02 E-7 4.13 E 7 4.22 E-7 4.34 E-7 4.49 E-7 4.97 E-7 5.24 E-7 5.80 E-7 6.81 E-7 7.85 E-7 9.50 E-7 Kinematic Viscosity, (ft²/s) 1.12 E-4 1.19 E-4 1.26 E-4 1.31 E-4 1.36 E-4 1.42 E-4 1.46 E-4 1.52 E-4 1.58 1.64 E 4 E-4 1.69 E-4 1.74 E-4 1.79 E-4 1.89 E-4 2.01 E-4 2.12 E4 2.25 E-4 2.40 E-4 3.06 E 4 3.65 E-4 4.51 E-4 6.68 E-4 9.30 E-4 1.51 E-3 Specific Heat Ratio, k 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.400 1.400 1.400 1.400 1.399 1.399 1.399 1.398 1.394 1.389 1.383 1.367 1.351 1.329 Speed of Sound, с (ft/s) 1004 1028 1051 1062 1074 1085 1096 1106 1117 1128 1138 1149 1159 1180 1200 1220 1239 1258 1348 1431 1509 1685 1839 2114 Air, assumed incompressible and inviscid, flows into the outdoor cooking grill through nine holes of 0.40-in. diameter as shown below. If a flowrate of 40 in^3/s into the grill is required to maintain the correct cooking conditions, determine the pressure within the grill near the holes. Input your pressure in Pa of gauge pressure (check sign). Use properties of air at 90 F listed in Table B.3. зали мм м 2000000 LT 9 holes, each 0.40-in. diameter Table B.3 Physical Properties of Air at Standard Atmospheric Pressure (BG/EE Units)" Temperature (°F) -40 -20 0 10 20 30 40 50 60 70 80 90 100 120 140 160 180 200 300 400 500 750 1000 1500 Density, p (slugs/ft³)b 2.939 E3 2.805 E3 2.683 E3 2.626 E-3 2.571 E-3 2.519 E-3 2.469 E-3 2.420 E-3 2.373 E-3 2.329 E3 2.286 E3 2.244 E-3 2.204 E3 2.128 E3 2.057 E3 1.990 E 3 1.928 E3 1.870 E-3 1.624 E 3 1.435 E 3 1.285 E3 1.020 E 3 E-4 8.445 6.291 E 4 Specific Weight", (Ib/ft³) 9.456 E-2 9.026 E-2 8.633 E 2 8.449 E-2 8.273 E 2 8.104 E-2 7.942 E-2 7.786 E 2 7.636 E-2 7.492 E 2 7.353 E-2 7.219 E-2 7.090 E- 2 6.846 E 2 6.617 E 2 6.404 E-2 6.204 E-2 6.016 E 2 5.224 E-2 4.616 E2 4.135 E-2 3.280 E-2 2.717 E- 2 2.024 E 2 Dynamic Viscosity, " (lbs/ft²) 3.29 E-7 3.34 E-7 3.38 E-7 3.44 E-7 3.50 E-7 3.58 E-7 3.60 E 7 3.68 E-7 3.75 E-7 3.82 E-7 3.86 E-7 3.90 E-7 3.94 E 7 4.02 E-7 4.13 E 7 4.22 E-7 4.34 E-7 4.49 E-7 4.97 E-7 5.24 E-7 5.80 E-7 6.81 E-7 7.85 E-7 9.50 E-7 Kinematic Viscosity, (ft²/s) 1.12 E-4 1.19 E-4 1.26 E-4 1.31 E-4 1.36 E-4 1.42 E-4 1.46 E-4 1.52 E-4 1.58 1.64 E 4 E-4 1.69 E-4 1.74 E-4 1.79 E-4 1.89 E-4 2.01 E-4 2.12 E4 2.25 E-4 2.40 E-4 3.06 E 4 3.65 E-4 4.51 E-4 6.68 E-4 9.30 E-4 1.51 E-3 Specific Heat Ratio, k 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.401 1.400 1.400 1.400 1.400 1.399 1.399 1.399 1.398 1.394 1.389 1.383 1.367 1.351 1.329 Speed of Sound, с (ft/s) 1004 1028 1051 1062 1074 1085 1096 1106 1117 1128 1138 1149 1159 1180 1200 1220 1239 1258 1348 1431 1509 1685 1839 2114