EXAMPLE 1 A perfect gas has molecular weight of 26 and a value of y = 1.26, ?Calculate the heat rejected per 1kg when a/ the gas contained in a rigid vessel at 3 bar and 315 C and cooled until the pressure fails to 1.5 bar b/ the gas enters pipe at 280 C and flow steady in the end of the pipe .where 250. Neglect any velocity of the gas

EXAMPLE 1 A perfect gas has molecular weight of 26 and a value of y = 1.26, ?Calculate the heat rejected per 1kg when a/ the gas contained in a rigid vessel at 3 bar and 315 C and cooled until the pressure fails to 1.5 bar b/ the gas enters pipe at 280 C and flow steady in the end of the pipe .where 250. Neglect any velocity of the gas

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Q2// Consider a special ball made of steel (p- 5000 kg/m', Cp- 300 J/kg. k, A= 60 m²). The initial temperature of the ball is 300 K. It is immersed in a large oil tank at 400 K. The convective heat transfer coefficient, h at the sphere surface is 3000 W/m³. k. Assume that there is no radial temperature gradient inside the ball. Use Euler's method to find the temperature of the sphere at t = 15 sec after it was immersed in the oil tank. Use a step size of h= 5 sec. The energy balance equation of the ball is given by the following equation: dT pCp -=-hA(T-T₂) dt
1) A cylinder of volume 50cm made of Pyrex glass is full to the brim with acetone. Suppose the cylinder and acetone are warmed by 30°C. (Coefficient of linear expansion of glass, 3.2 x 10-6K-1 and acetone, 5.0 x 10-5K-1) i. Calculate the change in volume of the glass. ii. Calculate the change in volume of the acetone. ii. Will any acetone spill out of the cylinder? Explain.
•Determine the unit weight of the liquid when it is at the level shown. (Express the answer in English unit) •Determine the weight of the liquid. (Express the answer in English unit) •Assuming no mixing of liquids occur, if glycerin (SG= 1.26) is poured into the tank: a.) it will sink to the bottom of the tank b.) it will float on the surface of the liquid c.) it will be suspended in the liquid * answer should be in 3 decimal places
Oil of sp.gr. of 0.750 flows through the nozzle shown and deflects the mercury in the U-tube gage. Determine the value of H in m if the pressure at A is 142 kPa.
The cyclindrical tank with hemispherical ends shown in Fig. contains a volatile liquid and its vapor. The liquid density is 800 kg/m', and its vapor density is negligible. The pressure in the vapor is 120 kPa (abs), and the atmospheric pressure is 101 kPa (abs). Determine: (a) the gage pressure reading on the pressure gage; and (b) the height, h, of the mercury manometer. Open Vapor 1m 1 m Liquid 1 m Mercury E E
A closed tank whose bottom is 18 inches in diameter is filled with three liquids: 4 inches of carbon tetracloride (SG=1.59), 2 inches of water and 12 inches of syrup (SG= 1.31). The aire chamber in the tank is pressurized at 1296 psf. A.) Determine the pressure at the interface of carbon tetrachloride and syrup. B.)Determine the difference in pressure between the interface of water and syrup and the interface of carbon tetrachloride and syrup. C.)Compute the hydrostatic pressure (in psf) acting at the bottom of the tank.
Consider the thermal system shown below. The temperature of the inflow liquid is kept constant, and the liquid inflow rate G kg/s is also kept constant. For t <0 the system is at steady state, wherein the heat input from the heater is U kcal/s and the temperature of the liquid in tank 2 is 0,°C. At t 0 the heat input is changed from U to U + u where u is small. This change will cause the temperature of the liquid in tank 2 to change from 02 to 02 +82. Taking the change in the heat input from the heater to be the input to the system and the change in the temperature of the liquid in tank 2 to be the output, obtain the transfer function 02(s)/U(s). Assume that the thermal capacitances of tanks 1 and 2 are Ci kcal/°C and C2 kcal/C, respectively, and that the specific heat of the liquid is c kcal/kg°C. The steady-state heat flow rates from tanks 1 and 2 are the same, Q kcal/s. The changes in and heat flow rates from tanks 1 and 2 are q2, respectively. U +u G Tank 1 O+ 0, O+ 0, O+ 42 Tank 2
An open tube is attached to a tank as shown. A). If Liquid X (Oil SG=0.55) rises to a height of 800 mm in the tube, what is the pressure Pa (in kPa) of the air above water? Neglect capillary effects in the tube. B). If Liquid X (Alcohol SG=0.79) rises to a height of 800 mm in the tube, what is the pressure Pb (in kPa) of the air above water? Neglect capillary effects in the tube.
No. 1. (10 Pts) An aluminum pipe with a length of 60 m at a temperature of 10°C rests freely on the ground. An adjacent steel pipe at the same temperature is 5 mm longer than the aluminum pipe. (a) At what temperature (degrees Celsius) will the aluminum pipe be 15 mm longer than the steel pipe? (Assume that the coefficients of thermal expansion of aluminum and steel are aa=23x10-6/"C and as=12x10-6/ c, respectively.) (b) What is the axial stress developed in the aluminum pipe when the temperature was increased? 5 mm Aluminun Steel Figure No. 1
Q2: A drop of liguid foluen is kept al uniform temperkure t 299 K and is suspended in air by a fine wire. The initid radius at r= 2mm. The vapor pressure of foluene 299K is f=384 Kfe and the density of liguid toluene is 366 ky Im 3. Derive equation for the time tp for the drop b evupurete Completely in a large volume of still air Calculate the tine in seconds for Complete evaporahion.
Oil of SG 0.75 flows through the nozzle shown and deflects the mercury in the U-tube gage. What is the pressure at B in Kpa? A 2.75 D h B C Hg(13.6)
Oil of sp.gr. of 0.750 flows through the nozzle shown and deflects the mercury in the U-tube gage.Determine the value of H in m if the pressure at A is 142 kPa. Round your answer to 2 decimal places.