Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
a) In a polytropic process, a fluid is compressed to 2.75 times its initial pressure, whereas its temperature becomes1.65 times. What is the fluids index of expansion, n?
b) 1.2kg of Air at a pressure of 2.15MPa and a temperature of 585K, undergoes a reversible adiabatic process. Final pressure at the end of the process is 195KPa. Calculate final temperature and work done.
Air exerts a pressure of 900KPa within a 0.45 cubic meter container of fixed volume. It is cooled such that the pressure falls to 3.25bar. The temperature of the air is then measured and was found to be 285C. Determine the mass of the air, the initia..
Air enters a gas turbine with a velocity of 165m/s and a specific enthalphy of 2800KJ/kg and leaves with a velocity of 135m/s and specific enthalpy of 2175KJ/kg. The heat lost to the surrounding turbine is 32.5KJ/kg. Determine power developed by the ..
Liquid water in a pumped flow system experiences varying pressures as it circulates through the system. One concern in designing any such system is to ensure that cavitation does not occur. If the water temperature during operation of a particular sy..
Five kg of water is in a closed rigid container with a volume of 0.3935 m3 and a pressure of 5.0 MPa. Draw and label the states and process on a P-v diagram and determine the amount of heat removed and work done when the pressure is reduced to 1.5 MP..
Water as a saturated vapor at 600 Â°F is contained in a piston-cylinder device that has an initial volume of 30 ft3. The device undergoes a constant temperature process, until the water reaches the saturated liquid condition. Draw and label the state..
Nitrogen in a piston-cylinder assembly undergoes a polytropic expansion process. Initially, nitrogen is at 125 C and 144 kPa. Then it is expanded to a state of 102 kPa and 90 C. determine the heat transfer and work for the process considering no chan..
A slow leak develops in an inner tube (volume, 0.5 ft3, temperature, 600F), wherein it takes 4 hours for the pressure to decrease from 30 to 25 psig. The mass flow rate of air per second under the conditions is given by 0.68pA/(RT)0.5, where the unit..
Explain how you would expect the strength and ductility of a crystalline material to change as the ASTM Grain size number change from 14 to 3.
Evaluate the concentration of vacancies in copper at 650C temperature. What temperature will be needed to heat treat copper such that the concentration of vacancies produced will be 1000 times more than the equilibrium concentration of vacancies at s..
Air at standard temperature and pressure flows through a horizontal galvanized iron pipe at a rate of 4.0 ft3/s. The pressure drop must not exceed 0.75 psi per 100 ft of pipe (and naturally we want to design the most economic pipe). What diameter sho..
What is the mass of oxygen gas in a container with a volume of 25 ft3, at a pressure of 14.7 psia and a temperature of 75oF?
determine the intersection points of the following pairs of curves. follow the following steps for each problemi. use
a steam rankine cycle operates between the pressures of 2500 psi in the boiler and 1 psi in the condenser. the turbine
A composite wall consists of a 1 mm-thick stainless steel plate (AISI 316), 2 cm of plywood, and 2 cm of low-density particle board. The stainless steel surface is maintained at 380 K while the other side loses heat to ambient air at 300 K, with conv..
What is the amount of air mass that passes through a wind turbine swpet area per minute if the turbine has 42m long blades and the air flux is 8kg/m^2s ?
the thermal efficiency of a heat engine is 40 and produces 100kw. please determine the heat transfer rate to this
1. a fire hose nozzle has an orifice diameter of 1inch. according to some fire codes the nozzle must be capable of
an 8 ft3 tank contains air at an initial temperature of 80f and intial pressure of 100psi. the tank develops a small
a car is to be hoisted by elevator to the fourth floor of a parking garage which is 48 ft above the ground. if the
a car of mass 2000 kg travelling 30 degree north of east at 20 ms strikes a car of mass 3000 kg travelling 10 degree
what is the effect of quenching on the transition temperature and toughness for the mild steel ?
a steel tensile specimen with starting gage length 2.0 in and cross-sectional area 0.5 in2 reaches a maximum load of
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: info@expertsmind.com
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd