An insulated tank is fitted with a freely-floating piston made of a non-conducting material as shown in Figure. The pressure in the two chambers must always be the same at any specific time (PA= PB). The chambers are insulated from each other as well as from the environment. To the left of the piston (chamber A) is 1.5 kg of steam, initially at 4 bar and 90% quality. To the right of the piston (chamber B) is air, initially at 25° C and 4 bar. The total volume of the steam and air is 1.25 m³. Additional air from a pipeline is forced into the right side of the cylinder which forces the piston to move to the left, increasing the steam pressure. The air in the pipeline is at 20 bar. The valve is closed, and the air flow is stopped when no more liquid remains in the left chamber. When the valve is closed, PA= PB = 15 bar and the temperature in the right chamber is 115°C. Model the air as an ideal gas with constant specific heat capacities, R = 287 J/kg-K, cv = 718 J/kg-K, and CP=1005 J/kg-K. a) What is the temperature of the gas in the pipeline? b) What is the entropy produced in chamber B during this process?

An insulated tank is fitted with a freely-floating piston made of a non-conducting material as shown in Figure. The pressure in the two chambers must always be the same at any specific time (PA= PB). The chambers are insulated from each other as well as from the environment. To the left of the piston (chamber A) is 1.5 kg of steam, initially at 4 bar and 90% quality. To the right of the piston (chamber B) is air, initially at 25° C and 4 bar. The total volume of the steam and air is 1.25 m³. Additional air from a pipeline is forced into the right side of the cylinder which forces the piston to move to the left, increasing the steam pressure. The air in the pipeline is at 20 bar. The valve is closed, and the air flow is stopped when no more liquid remains in the left chamber. When the valve is closed, PA= PB = 15 bar and the temperature in the right chamber is 115°C. Model the air as an ideal gas with constant specific heat capacities, R = 287 J/kg-K, cv = 718 J/kg-K, and CP=1005 J/kg-K. a) What is the temperature of the gas in the pipeline? b) What is the entropy produced in chamber B during this process?

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

The tank of an air compressor has a volume of 2m3 and is filled with air at a temperature of 40 degrees C. If agauge pressure on the tank reads 7.5 bars,what is themass of the air in the tank?
I.A U-tube manometer filled with Liquid A is attached to the underside of 4 inch pipe carying water, as shown in Figure 2. At a point directly above the inclined U-tube manometer tap, the upstream tap of an inverted U tube is located. The inverted-U-tube manometer is filled with a Liquid B. If the P:-17 psi, determine; (Note: I in (inch) - 25.4 mn, I atm - 101.325 kNiw - LO1325 har - 101.325 APa - 14.7 poi, g -9.8sims) (a) the differential manometer reading (psig), and (b) the value of X (inch). Liquid , SG-05 12 in. Water Liquid A, SG 16
(a) What is the cause of pressure that is exerted byfluids on the walls of containers that holds them?(b) Consider a fluid in any container of volume V. If ithas some pressure p1 at vertical position y1, will thepressure p2 at some vertical position y2 below y1 beequal, less or greater than p1? Why is it so?(c) Water enters a house through a pipe with an insidediameter of 2.0 cm at an absolute pressure of 4.0 ×105 Pa (about 4 atm). A 1.0-cm-diameter pipe leadsto the second-floor bathroom 5.0 m above. Whenthe flow speed at the inlet pipe is 1.5 m/s, find theflow speed, pressure, and volume flow rate in thebathroom.
Fluid Properties-The difference in pressure between theinside and outside of a soap bubble wasobserved to be 1.6 N/m2. If the surfacetension of the liquid is 40 dyne/cm, what will be the diameter of the bubble in meters?
Fluid Properties- The difference in pressure between theinside and outside of a soap bubble wasobserved to be 1.6 N/m. If the surfacetension of the liquid is 40 dyne/cm, what will be the diameter of the bubble in meters?
This problem uses Figure 1 .Consider a flat plate of thickness h submerged in a liquid of density (p). with the plate parallel to the free surface, as shown in the figure. The area of the top (and also bottom) surface of the place is A, and its distance to the free surface is s. Match the balancing pressures and forces to their correct expression. Figure 1 PrgsA Pr8(s+h)A Gauge pressure on the top of the plate pf'g*(s+h)*A Gauge pressure on the bottom of the plate pf*g*s Hydrostatic force on the top of the plate pf*g"(s+h) Hydrostatic force on the bottom of the plate pf'g*s*A > > >
The U tube differential manometer is connected between two pipes, with the specific gravity of liquid in pipe A & in pipe B is 0.84 and 0.63 respectively as shown in the figure, h;= 104 cm, hz = 28 cm, mercury level difference hg = 16 cm. Find the difference in pressure between the pipes A & B in kPa. (ENTER ONLY THE VALUE IN THE BOXES BY REFERRING THE UNIT GIVEN IN BRACKET. ALSO UPLOAD YOUR HAND WRITTEN ANSWERS IN THE LINK PROVIDED) h2 hi hg The difference in pressure between pipes A &B (in kPa)
Consider a frictionless, massless and leak-proof plug blocking a rectangular hole of dimensions 2Rx Lat the bottom of an open tank as shown in the figure. The head of the plug has the shape of a semi-cylinder of radius R. The tank is filled with a liquid of density p up to the tip of the plug. The gravitational acceleration is g. Neglect the effect of the atmospheric pressure. R R g F Sectional view A-A A The force F required to hold the plug in its position is (a) 2pR gL 1- (b) 2pR gL 1+ 4 4 TC (c) TR?p gL (d) PR gL
The figure below shows a rectangular tank of dimensions ho = 2.5 m and b = 2 m is filled to the brim with a liquid of specific gravity 1.1 (tank is 1 m into plane of figure). The tank is subjected to a horizontal acceleration ax, and 30% of the liquid spills over. Determine the difference in liquid pressures at the lower left-hand corner (Point E) and lower right-hand corner of the tank (Point F). PE-PF= 1. [15.70090597, 16.672095597 Free surface ho Liquid X b Liquid at rest ➡ho kPa. 9 Free surface Liquid b ax Under constant acceleration
Answer the following. A: When the pressure of liquid is increased from 3.5 MN/m² to 6.5 MN/m² its volume is found to decrease by (0.08) percent. What is the bulk modulus of elasticity of the liquid? B: An open cylindrical tank (1.2m) in diameter and (1.8m) deep is filled with water and rotated about its central axis at (60 r.p.m). How much liquid is spill and how deep of the water at the central axis.
In figure (1), The Gauge pressure at A reads P87 kPa. All fluids are at 20°C. Determine the elevations Z in meters of the liquid levels in the open piezometer tubes B and c. Gasoline S.G= 0.8, Glycerin S.G= 0.9, air density= 1.25 kg/m³. A В C 2 m Air 1.5 m Gasoline 1 m Glycerin -
Problem 3 Oil Water, machine oil and salty sea water are filling a pipe, as water shown on the figure. The corresponding densities are: pwater " 1000 kg/m³, poil Sea 0,6m = = 1200 kg/m³. = 800 kg/m³ and Psea water 0,5m Determine the pressure in point 1, the upper closed end of the pipe. Water 0,6m