d- For turbulent flow, Reynold Number is e- A pump is a rotodynamic pump that converts mechanical energy to hydraulic pressure energy. f- turbine can be used in rivers, man-made channels, tidal waters. g- The First Law of Thermodynamic state that_ h- i- is a change in the system from one equilibrium state to another. transfer heat from low to high temperature stages by using mechanical work. j- Adiabatic process means,

d- For turbulent flow, Reynold Number is e- A pump is a rotodynamic pump that converts mechanical energy to hydraulic pressure energy. f- turbine can be used in rivers, man-made channels, tidal waters. g- The First Law of Thermodynamic state that_ h- i- is a change in the system from one equilibrium state to another. transfer heat from low to high temperature stages by using mechanical work. j- Adiabatic process means,

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

19. A spacecraft, traveling in deep space, fires thrusters to achieve a change in speed of 2.8 km/s. If the specific impulse of the thrusters is 300 s, what is the ratio of the initial spacecraft mass to the spacecraft mass after the thrusters have fired? a. 0.9 3000/2.8 2.6 C. 8.2 d. None of the above 20. The state vectors for an Earth-orbiting spacecraft at a given point in tim 5
Thermal Engineering
It is a process that can go back to its initial state without a loss of energy a. irreversible b. thermodynamic c. quasi-static d. continuing
An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergoes a reversible non-flow constant pressure process from initial volume =1.2 cubic meter and initial pressure = 690 kPa to a state where final temperature = 600°C. a.) What is the initial temperature? b.) Determine the constant volume specific heat. c.) Determine the Change in Internal Energy. d.) Determine the constant pressure specific heat. e.) Determine the Change in Enthalpy.
AN AMOUNT OF ENTROPY( NO CHAT GPT, ONLY HAND WRITTEN)
Steam Transmission Liquid (c) When the steam in the piston-cylinder assembly expands, the transmission converts the piston motion to rotary motion of a paddlewheel that stirs a viscous liquid. The principal source of irreversibility is
-Gas supply line- Gas A 1.5 m3 tank initially contains a gas at 140 kPa, 340 K. The tank is connected a line carrying same gas at 1400 kPa and 340 K. What should be heat transfer during this process, in kJ, so that the final pressure and temperature are 1400 kPa and 340 K, respectively. (cp=0.72 kJ/kg.K, cv=0.48 kJ/kg.K).
The number is 9 thermodynamics
13
Question 1 A) Considering the First-Law of thermodynamics, describe how we can reduce the temperature of a system? B) There are two different containers; the first one has hot water inside and the second one has cold oil. Can we have an identical thermal energy for these systems? Why?
INTRODUCTION: In thermodynamics, energy can be neither created nor destroyed (1st law): it is either converted to usable work or lost as waste heat. The second law of thermodynamics states that the total entropy (disorder) of a system will never decrease over time; that is, systems can only be at constant entropy or have increasing entropy. This may be restated by saying that there is an upper limit to the efficiency of the conversion of heat to work, as in a heat engine. From these principles of thermodynamics, it is clear that there is an upper limit to how efficient power generation can be at most power plants. Many power plants, including those fueled by fossil fuels, nuclear sources, geothermal sources, biomass, and solar thermal, operate by generating a source of heat (burning fossil fuels, reacting nuclear materials, using the sun’s rays, etc.), using this heat source to heat water to steam, and passing this steam through a turbine. When the turbine spins, power is generated.…
b) A tank shown in Figure-2 below is used to mix methanol and salt. The tank initially contains 1 m³ of methanol. Salt is provided into the tank with a volumetric flow rate of Fsalt= 0.2 m³ s¹. A stream with perfectly mixed methanol and salt leaves the tank with a volumetric flow rate of F = 0.1 m³ s1. As the flow is unsteady, the volume of mixture in the tank, V(t), is a function of time. Fsalt=0.2 m³/s Psalt=2160 kg/m³ V(t) F=0.1 m³/s Figure-2: A mixing tank of methanol and salt. d(V (t)Psalt) dt Salt+methanol The mass balance of salt in the tank is given by, d(V (t) (Psalt +Pmethanol)) dt = Fsalt Psalt - FPsalt where Psalt is the density of salt and equal to 2160 kgm ³. The total mass in the tank is given by, = Fsalt Psalt - FPsalt - FPmethanol where Pmethanol is the density of methanol and equal to 800 kgm-³. When the tank contains V = 0.5m³ of mixture, what is the mass of salt in the tank? Use the explicit Euler finite difference method to discretise the balance equations. (Hint:…