The converging nozzle has an exit diameter of 0.25 m.The fuel-oxidizer mixture within the large tank has anabsolute pressure of 4 MPa and temperature of1500 K. The mixture has k = 1.38 andR = 296 J/kg-K]. (Figure 1)Figure0.25 mF1 of 1Part ADetermine the mass flow from the nozzle when the backpressure is a vacuum.Express your answer using three significant figures.VE| ΑΣΦ | 11 | vecm=SubmitProvide FeedbackRequest Answer?kg/sNext >

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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A process to liquify nitrogen gas (N2) from 300K, 200atm to 98.69K (saturation temperature) and 7atm is to be designed. The specific enthalpy of the saturated liquid and saturated vapor at 7atm are, Hl = 74.7 J/g and Hv = 239.2 J/g respectively. Consider first using a throttle valve alone. Sketch the path corresponding to the conditions given above on the T-S diagram on the next page. Is it possible to achieve liquefaction by a throttle valve alone? State and justify your reasoning.
Determine the expression for the final temperature of the mixture in terms of the rate of heat transfer to the mixing chamber and the inlet and exit mass flow rates.
Please answer question with as much detail as possible Please Use the “NCEES FE Reference Handbook 10.0.1” which can be downloaded for Free from https://ncees.org/ as your Reference for tables and formulas
Physics Consider a tank full of gaseous propane at 25 ºC and 5 atm. The tank is accidentally damaged resulting in a 10-mm hole. Calculate the mass flow rate of propane through the hole (assume that the pressure in the tank remains at 5 atm and that the ambient is at atmospheric pressure). NB: the ratio of specific heats for propane is 1.15
A single-effect evaporator concentrates 4.00 kg/s of a 10% by mass solution of H2SO4. The entering feed is at 25 °C. The vapor released at the top has a mass flow rate of 3.20 kg/s. The evaporator operates at a total pressure of 30.2 kPa at 90 °C. What is the rate of heat transfer in the evaporator? Use a steam table for the enthalpy of the vapor?
Helium at 3 MPa and 700 K enters a throttling valve, where the pressure dropped 300 kPa. What is the temperature of the helium at the outlet of the valve? 600 K 650 K 700 K 750 K DOC
There is 7kg of steam having pressure of 200kPa. Determine the flow energy per unit mass, specific enthalpy, total enthalpy.
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Saturated steam at 10 bar pressure is supplied to increase the temperature of the feed natural gas from its inlet temperature of 30°C to within 15°C of the steam outlet temperature. All steam properties can be verified in the steam table, attached. Evaluate the mass flow rate of the steam supplied, if about 20% of the steam is still uncondensed at the exit. The relevant properties of Natural gas (NG) are as follows: NG Flow Rate = 1500 kMol/hour Average specific heat Capacity of NG = 40 kl/kMol.°C.
Identify the state of the fluid: Ammonia at 120kPa, with a specific enthalpy of 35 kJ/kg
Calculate the specific volume of air-vapor mixture (m3/kgda) when the following conditions prevail: t=30°C, W=0.015kg/kgda, Pt=90kPa.
A process to liquify nitrogen gas (N2) from 300K, 200atm to 98.69K (saturation temperature) and 7atm is to be designed. The specific enthalpy of the saturated liquid and saturated vapor at 7atm are, Hl = 74.7 J/g and Hv = 239.2 J/g respectively. Consider combining a heat exchanger with the throttle valve. In particular, the gas cooled by throttling, but not liquefied, is used to cool the inlet gas before it enters the throttle valve. This is achieved in the arrangement with the unliqufied gas leaving the heat exchanger at 290K (stream5.) Stream 4 is still at Tsat and 7atm. Is it possible to achieve liquefaction? If so, what fraction of N2 gas is liquefied in this process? (Hint: try combining mass and energy balances on the overall process)

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