Homework Answers
2.Fuel tanks are divided into compartments or baffles installed in them helps to keep the oil from surging back and forth as aircraft changes its altitude in flight.
3.Integral fuel tank means tank is part of the structure with seams and joints sealed fuel tight.
4.Fuel system strainer are used in aircraft fuel system to filter the fuel.
5.Fuel booster pumps are used in air craft fuel system to produce fuel pressure for starting the engine
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x2 AT 2. Fuel Tanks divided into compartments or baffles installed in them helps a. as...
1.6 The Space Shuttle Transportation System (SSTS) shown in Fig. E1.5 incorporates three space shuttle main...
1.6 The Space Shuttle Transportation System (SSTS) shown in Fig. E1.5 incorporates three space shuttle main engines (SSME, shown in Fig. E1.6) using liquid hydrogen (L.H2) as the fuel and LOX as the oxidizer in a ratio of 1:6. The heating value of LH2 is 51.600 Btu/lh (120 MJ/kg). The thrust produced by each engine in near-vacuum conditions of the upper atmosphere is 512,000 Ibs (2.28 MN) at a specific impulse of 454 s. The typical burn time for the...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is flying at cruising condition with a flight Mach number of 0.7. The ambient temperature and pressure are 250 K and 100 kPa, respectively. The engine compressor pressure ratio is 12, and the turbine inlet temperature is 1200 K. Assume all mechanical components are operating at isentropic condition and the specific heat can be considered a constant (throughout the entire engine) of 1 kJ/(kg K)....
The system below shows a simplified schematic of an oil transfer system between tanks, from left...
The system below shows a simplified schematic of an oil transfer system between tanks, from left to right: L L The oil specific gravity is 0.77 and its viscosity is 2.7 [cP). The pipes are horizontal and coaxial (neglect difference in height between suction and discharge). The tanks are closed but vented so that they are at atmospheric pressure ([atm]). Assume for simplicity that the liquid level in each tank is 2.5 (m) above the level of the pipes (in...
1. VTOL Engine Forces A propulsion system for a newP VTOL (vertical takeoff and landing) aircraft...
1. VTOL Engine Forces A propulsion system for a newP VTOL (vertical takeoff and landing) aircraft is being tested. i The design is a basic turbojet AP with the geometry shown in the P figure to the right. The engine is mounted on a pod in a test cell that keeps the engine stationary by exerting the necessary reaction forces to balance the forces generated by the engine. Gas turbine Pe PeTe The test cell provides air to the engine...
Quantitative: In the 1950s liquid hydrogen was considered as a fuel for a new type of...
Quantitative: In the 1950s liquid hydrogen was considered as a fuel for a new type of aircraft being developed, the SR-71 Blackbird (shown in Figure 1). Figure 1: The SR-71 Blackbird Early research on the project focused on which fuel to use for the Blackbird. Pratt & Whitney had a J-57 engine that was designed for kerosene and being considered for implementation on the Blackbird. The J-57 only took 5 months to convert to running on liquid hydrogen, however tests...
A living cell extracts energy from organic "fuel" molecules in small, enzyme-catalyzed steps. This allows the...
A living cell extracts energy from organic "fuel" molecules in small, enzyme-catalyzed steps. This allows the process of energy extraction to be regulated. but less free energy is released from the molecules than would be released by burning them O and all of the energy is released as heat that can be used to do work in the cell O and some of the energy is stored in bonds of activated carriers O and more free energy is released from...
pts per question) 1. A 2 m piston cylinder device contains nitroen gas at 200 kPa...
pts per question) 1. A 2 m piston cylinder device contains nitroen gas at 200 kPa and 350K. Now heat is transferred to the nitrogen in the tank and the pressure of nitrogen rises to 900 kPa and volume is maintained at same. The boundary work done during this process is (a) 1080 kJ (b) 840 k (c)240 k 2. A heat engine receives heat from a source at 727°C and rejiects the waste heat to a sink at 27°C,...
69. THE ENDOSPORE itself is might to stain_?_ color in an ACID FAST stain. (a) HOT...
69. THE ENDOSPORE itself is might to stain_?_ color in an ACID FAST stain. (a) HOT pink (c) purple (d) green (e) baby-blue 70. All STAINS begin with a properly prepared _?_ . (a) dye (b) slide (c) smear (d) dog (e) cat 71. Which of the following is an ENDOTOXIN found in some microbes? This is results in fever, blood vessel dilation and possibly SHOCK when it is released into the human blood stream? (a) the plasma membrane (b)...
reply ma as soon as possible 120 points total Due: October 23, 2019 Budget your time...
reply ma as soon as possible
120 points total Due: October 23, 2019 Budget your time carefully TRUE OR FALSE (45 points - 3 points cach): Mark whether the statements as written are "true" or "false". If the statement is false, make minor changes to the statement so that the statement is true. The primary adverse health effect resulting from the disposal of mercury wastes into Minamata Bay was dysentery The flow regime in horizontal velocity grit chambers approaches continuous...
1.6 The Space Shuttle Transportation System (SSTS) shown in Fig. E1.5 incorporates three space shuttle main engines (SSME, shown in Fig. E1.6) using liquid hydrogen (L.H2) as the fuel and LOX as the oxidizer in a ratio of 1:6. The heating value of LH2 is 51.600 Btu/lh (120 MJ/kg). The thrust produced by each engine in near-vacuum conditions of the upper atmosphere is 512,000 Ibs (2.28 MN) at a specific impulse of 454 s. The typical burn time for the...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is flying at cruising condition with a flight Mach number of 0.7. The ambient temperature and pressure are 250 K and 100 kPa, respectively. The engine compressor pressure ratio is 12, and the turbine inlet temperature is 1200 K. Assume all mechanical components are operating at isentropic condition and the specific heat can be considered a constant (throughout the entire engine) of 1 kJ/(kg K)....
The system below shows a simplified schematic of an oil transfer system between tanks, from left to right: L L The oil specific gravity is 0.77 and its viscosity is 2.7 [cP). The pipes are horizontal and coaxial (neglect difference in height between suction and discharge). The tanks are closed but vented so that they are at atmospheric pressure ([atm]). Assume for simplicity that the liquid level in each tank is 2.5 (m) above the level of the pipes (in...
1. VTOL Engine Forces A propulsion system for a newP VTOL (vertical takeoff and landing) aircraft is being tested. i The design is a basic turbojet AP with the geometry shown in the P figure to the right. The engine is mounted on a pod in a test cell that keeps the engine stationary by exerting the necessary reaction forces to balance the forces generated by the engine. Gas turbine Pe PeTe The test cell provides air to the engine...
Quantitative: In the 1950s liquid hydrogen was considered as a fuel for a new type of aircraft being developed, the SR-71 Blackbird (shown in Figure 1). Figure 1: The SR-71 Blackbird Early research on the project focused on which fuel to use for the Blackbird. Pratt & Whitney had a J-57 engine that was designed for kerosene and being considered for implementation on the Blackbird. The J-57 only took 5 months to convert to running on liquid hydrogen, however tests...
A living cell extracts energy from organic "fuel" molecules in small, enzyme-catalyzed steps. This allows the process of energy extraction to be regulated. but less free energy is released from the molecules than would be released by burning them O and all of the energy is released as heat that can be used to do work in the cell O and some of the energy is stored in bonds of activated carriers O and more free energy is released from...
pts per question) 1. A 2 m piston cylinder device contains nitroen gas at 200 kPa and 350K. Now heat is transferred to the nitrogen in the tank and the pressure of nitrogen rises to 900 kPa and volume is maintained at same. The boundary work done during this process is (a) 1080 kJ (b) 840 k (c)240 k 2. A heat engine receives heat from a source at 727°C and rejiects the waste heat to a sink at 27°C,...
reply ma as soon as possible
120 points total Due: October 23, 2019 Budget your time carefully TRUE OR FALSE (45 points - 3 points cach): Mark whether the statements as written are "true" or "false". If the statement is false, make minor changes to the statement so that the statement is true. The primary adverse health effect resulting from the disposal of mercury wastes into Minamata Bay was dysentery The flow regime in horizontal velocity grit chambers approaches continuous...
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