Engineering, 22.04.2020 03:05 rubyhart522
The fuel of problem 4 was used to run a spark-ignition engine in a laboratory environment simulating the atmosphere of planet Mars. The intake air was composed of (O2 + 3CO2). Stoichiometric amounts of "air" and fuel enter the engine at 25Β°C, while combustion products in the exhaust manifold are at an average temperature of 1000 K. Only products of complete combustion are found in the exhaust. It is measured that the engine produces 2.0 kW of power while the heat transfer rate to the surroundings is 1.0 kW. a) Determine the mass flow rate of the fuel supplied to the engine. b) Determine the fuel conversion efficiency of the engine when operated with the proposed fuel
Answers: 2
Engineering, 03.07.2019 23:20
Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct
Answers: 3
Engineering, 04.07.2019 18:10
Water at 70Β°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
Engineering, 04.07.2019 18:20
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
The fuel of problem 4 was used to run a spark-ignition engine in a laboratory environment simulating...
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