First Law of Thermodynamics Conservation of Mass no. 5 kg/s, 0.212 m/s, 0.433 m/s)5. Two streams of air are mixed in a steady-flow mixing chamber that has twoinlets and asingle exit. Specifically, 1 m/s of air at 120 kPa, 40°C is mixed with2 m/s of air at 120 kPa, 90°C, resulting in a mixture at 120 kPa and 70°C.The part of the pipe that contains the mixture has a cross-sectional area of0.1 m?. Determine the mass flow rate of the two entering airstreams and thevelocity of the air mixture.[Answers: 1.336 kg/s, 2.304 kg/s, 29.86 m/s]6. Dry air enters an industrial dryer with a pressure of 101 kPa and temperatureof 250°C, and at a mass flow rate of 2.6 kg/h through a duct with a cross-sectional area of 0.85 m?. A wet material is placed inside the dryer, and itsdryer and the average velocity of air entering the dryer, assuming steadyoperation.rate of drying is 5.5 g/min. Determine the mass flow rate of gases leaving the[Answer: 4.546 m/h]First Law of Thermodynamics Conservation of Mass - 172

m/s) 5. Two streams of air are mixed in a steady-flow mixing chamber that has two inlets and a single exit. Specifically, 1 m/s of air at 120 kPa, 40°C is mixed with 2 m/s of air at 120 kPa, 90°C, resulting in a mixture at 120 kPa and 70°C. The part of the pipe that contains the mixture has a cross-sectional area of 0.1 m2. Determine the mass flow rate of the two entering airstreams and the velocity of the air mixture.

m/s) 5. Two streams of air are mixed in a steady-flow mixing chamber that has two inlets and a single exit. Specifically, 1 m/s of air at 120 kPa, 40°C is mixed with 2 m/s of air at 120 kPa, 90°C, resulting in a mixture at 120 kPa and 70°C. The part of the pipe that contains the mixture has a cross-sectional area of 0.1 m2. Determine the mass flow rate of the two entering airstreams and the velocity of the air mixture.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Krypton in a closed system is compressed adiabatically from 74 K and 1 bar to a final pressure of 24 bar. What is the final temperature in K? Assume krypton is an ideal gas. From Appendix B in the text, we can assume the heat capacity of krypton is independent of temperature and CP=2.5R , where R is the molar gas constant R=8.314 J/(mol K). For an ideal gas, recall CV=CP−R=1.5R. Report your answer in units of K using three decimal places.
Entropy can be defined as a level of disorder. This disorder in not necessarily related to thermodynamics only. Discuss in your own words your understanding of the concept of entropy with respect to non-engineering applications of our life with the help of two examples. Discuss, in your own words, why is important to define and understand the concept of entropy.
Explain the concept of specific heat capacity in thermodynamics and its significance in understanding heat transfer and temperature changes in engineering applications.
P2 Explain the application of the first law of thermodynamics to appropriate systems
Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 0C to a volume of 0.085 m3. If the initial volume occupied was 0.02 m3, calculate the adiabatic index to 1 decimal place. Assume nitrogen to be a perfect gas and take cv = 0.63 k J / k g K
Define property. Explain with neat diagrams, the types of thermodynamics properties. Give at least 2 examples each
Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 0C to a volume of 0.085 m3. If the initial volume occupied was 0.02 m3, calculate the final pressure in bar to 3 decimal places. Assume nitrogen to be a perfect gas and take cv = 0.63 k J / k g K.
Consider the given equation U = RT(a+ T/Tc), which of the following expression gives the heat capacity of isochoric process? a.Ra+ 2RT/Tc b.R(a + T/Tc) c.Ra + R/Tc d.R(a + R /Tc)
Nitrogen undergoes an adiabatic process, the pressure volume relationship given as p = (5/V)+1.5 where is in bar and V is in m3. During the process the volume changes from 1.5 x 108 mm3 to 0.05 m3 and the system takes 45 kJ of heat. Determine (i) Work done (i) Work done (ii) Change in internal energy (iii) Final pressure of the gas, if the initial pressure is 1 bar (iv) Final temperature of gas, if the initial temperature is 80°C (v) mass (vi) Change in enthalpy .
THERMODYNAMICS 1. Calculate the amount of energy required in BTU to heat the air in a house 30 by 50 by 40 ft from 10 to 70°F at constant pressure. 2. Brine enters a cooler at the rate of 50 m3/hr at 15°C and leaves at 1°C. Specific heat and specific gravity of brine are 1.07 kJ/kg–K and 1.1 respectively. Calculate the heat transferred in kW. 3. How many BTU/min is required to produce 10 metric tons of ice per day at -10°C from raw water at 22°C? The latent heat of fusion of ice is 335 kJ/kg.
Steam enters the superheaters of a boiler at a pressure of 25 bar and dryness of 0.98 and leaves at the same pressure at a temperature of 370 degrees C. Calculate the heat energy supplied per kg of steam supplied in the superheaters. Steam properties are: At 25 bar and 370 °C h=3171.8 kJ/kg At 25 bar and 0.98 dryness; hf = 962.11 kJ/kg hfg = 1841.0 kJ/kg|
Please solve this in thermodynamics