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A 4.0 Liter (displacement volume) compression-ignition engine develops a NIMEP of 800 kPa with efficiency fc=28.28% using a fuel with a LHV of 40,000 kJ/kg. The compression ratio is 20.99.
A. Calculate the fuel delivered to the engine per cycle.
B. Estimate the peak temperature using the ideal air-standard Diesel cycle model using constant specific heats for air of (Cp = 1.005 and Cv = 0.718 [kJ/kgK]). Assume the pressure and temperatures prior to compression are 100 kPa and 320 K, respectively.
C. Calculate the cutoff ratio (V3/V2) using the ideal model.
Determine the total heat transfer and the total work(kj). and show the T-V diagram.
The yield strength for an alloy that has an average grain diameter of 4.4 x 10-2 mm is 115 MPa. At a grain diameter of 7.1 x 10-3 mm, the yield strength increases to 258 MPa. At what grain diameter, in mm, will the yield strength be 237 MPa?
river water flows through a 8-ft diameter pipe f 0.030 that is 2000-ft long. it is delivered to a powerhouse 700-ft
Two resistors, R 1 = 100.0 ± 0.2 ? and R2 = 50.0 ± 0.1 ?, are connected (a) in series and (b) in parallel. Calculate the uncertainty in the resistance of the resultant circuits. What is the maximum possible error in each case?
a refrigerant 134a at 140 kpa and -10 degree celcius is compressed by an adiabatic 16kw compressor to an exit state of
a circular shaft of diameter d rotates at a speed n and is supported by a journey bearing with clearance c. the
Helium gas is contained in a rigid vessel of 0.5 m3 at 500 kPa. The gas is agitated violently by a stirrer that transfers 250 kJ of work to the gas. Assuming that the system undergoes an adiabatic process, determine the final pressure of the gas. Ass..
A commercial food waste grinder in which the final shaft rotates at between 40 and 44 rpm is to be designed. The input is from an electric motor running at 850 rpm and delivering 0.50 hp.
As shown, a 130 lb bungee jumper wants to jump from the top of a 655 ft high bridge and be able to just touch the water below. Given that the bungee cord has a spring constant of 2.33 lb/ft, what should the bungee cord's relaxed length, l, be for ..
When a compressed gas storage tank fails, the resultant explosion occurs so rapidly that the gas cloud can be considered adiabatic and assumed to not mix appreciably with the surrounding atmosphere.
a 4.0 a current is set up in a circuit for 7.0 min by a rechargeable battery with a 3.0 v emf. by how much is the
air at 7 kpa and 35 degc flows over a flat plate at 7.5 ms. the plate is 30 cm square and is maintained at 65 degc.a.
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