As shown in the figure, air with a volumetric flow rate of 14,000 ft?/min enters an air-handling unit at 80°F, 1 atm. The air-handlingunit delivers air at 45°F, 1 atm to a duct system with three branches consisting of two 26-in.-diameter ducts and one 50-in. duct. Thevelocity in each 26-in. duct is 19 ft/s. Assume steady state operation and ideal gas behavior for the air.D- 50 in.DuctT- - 1- 45°FD, - D,- 26 in.V = V3systemAir-handling unit1+ A = P2 = P = P4 = 1 atmT= B0°F(AV)Determine the mass flow rate of air entering the air-handling unit, in Ib/s, the volumetric flow rate in each 26-in. duct, in ft/min, andthe velocity in the 50-in. duct, in ft/s.

The standard value of the density of air at 80oF and 1 atm is 0.0735 lb/ft3. Write the given data.…

Answered: As shown in the figure, air with a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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part a is not 5.2 got it wrong Dear expert don't Use chat gpt
Work Number 2 and 3
Air at 90 degree C and 1.0 atm contains 10 mol% water. A continuous stream of this air enters a compressor-condenser, in which the temperature is lowered to 15.6 degree C and the pressure is raised to 3.0 atm. The air leaving the condenser is then heated isobarically to 100 degree C. Make a detailed flowchart with the unknowns and Degree of Freedom.
Air is used as a working k=1.4 substance in a given internal r=11 combustion engine, which is T=280 K supplied with heat at a constant T=2245 K volume. Based on the data, | p=1.013 bar calculate the following: 1. Pressure and temperature of ending expansion. 2. Pressure rise rate V=0.56 m/kg the of isentropic 3. Thermal efficiency of the суycle 4.The work of the cycle 5.The average pressure of the суcle
8. The exact differential equation of enthalpy can be expressed as below: dH=-uCpdp + C₂dT where C: constant pressure heat capacity u: Joule-Thomson coefficient μl= a) Derive the exact differential equation of enthalpy from the general exact differential equation of enthalpy: = (3), dp + (7) dr T dH = b) Considering that you use nitrogen gas to make a temperature drop to an isenthalpic system, how much pressure drop is required to cool the system by 20 K? The Joule-Thomson coefficient of nitrogen is u 3 0.27 K atm¹. c) Prove that the Joule-Thomson expansion can occur without change of enthalpy (isenthalpic process).
2. thermodynamics
The suction Pressure of a dual combustion engine is P1 = 1 atm with the corresponding temperature of T1 = 60°C; compression ratio rk = 18. At the end of the constant volume combustion process, the pressure is 7.695MPa, rc = 1.5. Base on 1 kg/cycle of a hot air standard with k = 1.3, determine:: a.) the percentage clearance; b) the work (W); c.) the cycle efficiency and d.) the mean effective pressure. Draw the p-v and T-S diagram of the cycle.
T-2
First Law of Thermodynamics Law of Conversion Number 6
5. State 1 for a dual combustion engine is p = 1 atm and T1= 60.3°C; r = 18; at the end constant volume combustion process the pressure is 7695 kPa, r= 1.5. Base on 1kg/cycle of a hot-air standard with k clearance, (b) p, V, and T at each corner point on the cycle, (c) WNET (d) e̟ and (e] - %3D 1.31, determine (a) the percentage %3D Pm Ans. (a} 5.88% (b) 0.9443 m,0.05246 m³, 4468 kPa, 816.5 K, 1406.2 K, 0.07869 m, 2109.3 K, 296.8 kPa, 976.3 K; (c) 803.5 k]; (d) 57.43%; (e) 900 kPa
Assume 8.72 lb/sec of fluid enter a steady-state, steady-flow system with P1= 92.98 psia, ρ1 = 0.338 lb/ft3, v1 = 91.21 fps, u1 = 794.36 BTU/lb, and leave with P2 = 28.14 psia, ρ2 = 0.181 lb/ft3, v2 = 409.94 fps, and u2 = 750.5 BTU/lb. During the passage through the open system, each pund rejects 13.2 BTU of heat. Determine the work in hp.
24

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