4.32 Refrigerant 134a enters a well-insulated nozzle at 200 lbf/in.2, 220°F, with a velocity of 120 GR Engineering 2,1 тыс. подписчиков Скачать
4.32 Refrigerant 134a enters a well-insulated nozzle at 200 lbf/in.2, 220°F, with a velocity of 120 Скачать
4.29 Refrigerant 134a flows at steady state through a horizontal tube having an inside diameter of Скачать
Three forces act on the bracket. Determine the magnitude and direction θ of F so that the resultant Скачать
4.18 Refrigerant 134a enters the evaporator of a refrigeration system operating at steady state at Скачать
4.110 A tank whose volume is 0.01 m3 is initially evacuated. A pinhole develops in the wall, and air Скачать
Determine the magnitude of the resultant force FR= F1+ F2 and its direction, measured clockwise from Скачать
The force acting on the gear tooth is F = 20 N. Resolve this force into two components acting along Скачать
If F1=30N and F2=40N, determine the angles θ and φ so that the resultant force is directed along the Скачать
4.39 Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of Скачать
4.6 If a kitchen-sink water tap leaks one drop per second, how many gallons of water are wasted Скачать
4.34 Air with a mass flow rate of 2.3 kg/s enters a horizontal nozzle operating at steady state at Скачать
Determine the magnitude and direction θ of FA so that the resultant force is directed along the Скачать
6.40 Air contained in a rigid, insulated tank fitted with a paddle wheel, initially at 4 bar, 40°C Скачать
If the resultant force acting on the support is to be 1200 N, directed horizontally to the right, Скачать
4.24 Refrigerant 134a enters a horizontal pipe operating at steady state at 40°C, 300 kPa, and a Скачать
If the resultant force of the two tugboats is 3kN, directed along the positive x axis, determine the Скачать
Determine the magnitude of the resultant force and its direction, measured counterclockwise from the Скачать
6.25 Water within a piston–cylinder assembly, initially at 10 lbf/in2, 500°F undergoes an internally Скачать
4.68 As shown in Fig. P4.68, a power washer used to clean the siding of a house has water entering Скачать
3.21 As shown in Fig. P3.21 0.1 kg of water is contained within a piston–cylinder assembly at 100°C. Скачать
4.57 At steady state, a well-insulated compressor takes in nitrogen at 60°F, 14.2 lbf/in.2, with a Скачать
4.72 Oil enters a counterflow heat exchanger at 450 K with a mass flow rate of 10 kg/s and exits at Скачать
4.75 An air-conditioning system is shown in Fig. P4.75 in which air flows over tubes carrying Скачать
A system consisting of 1 kg of water undergoes a power cycle composed of the following processes: Скачать
6.145 Air enters the compressor of a gas turbine power plant operating at steady state at 290 K, 100 Скачать
4.59 Refrigerant 134a enters an air conditioner compressor at 4 bar, 20°C, and is compressed at Скачать
4.51 Steam at 1800 lbf/in.2 and 1100°F enters a turbine operating at steady state. As shown in Fig. Скачать
6.18 Steam enters a turbine operating at steady state at 1 MPa, 200°C and exits at 40°C with a Скачать
6.30 One-tenth kg of a gas in a piston–cylinder assembly undergoes a Carnot power cycle for which Скачать
4.52 Hot combustion gases, modeled as air behaving as an ideal gas, enter a turbine at 145 lbf/in.2 Скачать
4.42 Steam enters a well-insulated turbine operating at steady state at 4 MPa with a specific Скачать
4.65 As shown in Fig. P4.65, a pump operating at steady state draws water from a pond and delivers Скачать
4.49 Water vapor enters a turbine operating at steady state at 500°C, 40 bar, with a velocity of 200 Скачать
4.37 As shown in Fig. P4.37, air enters the diffuser of a jet engine operating at steady state at 18 Скачать
4.47 Steam enters a turbine operating at steady state with a mass flow of 10 kg/min, a specific Скачать
4.58 Air enters a compressor operating at steady state with a pressure of 14.7 lbf/in2 a temperature Скачать
4.46 A well-insulated turbine operating at steady state develops 28.75 MW of power for a steam flow Скачать
4.15 Liquid water flows isothermally at 208°C through a one-inlet, one-exit duct operating at steady Скачать
3.63 A closed, rigid tank filled with water, initially at 20 bar, a quality of 80%, and a volume of Скачать
3.33 Two kg of Refrigerant 134A undergoes a polytropic process in a piston–cylinder assembly from an Скачать
2.75 The following table gives data, in Btu, for a system undergoing a power cycle consisting of Скачать
3.78 A system consisting of 1 kg of H2O undergoes a power cycle composed of the following processes: Скачать
2.58 A closed system of mass 10 kg undergoes a process during which there is energy transfer by work Скачать
4.100 Separate streams of air and water flow through the compressor and heat exchanger arrangement Скачать
6.42 A rigid, insulated container fitted with a paddle wheel contains 5 lb of water, initially at Скачать
2.59 As shown in Fig. P2.59, a gas contained within a piston–cylinder assembly initially at a volume Скачать
A particular power generation system operates on the simple ideal Brayton cycle, across a pressure Скачать
4.60 Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at Скачать
4.53 Air enters a compressor operating at steady state at 1.05 bar, 300 K, with a volumetric flow Скачать
4.31 Steam enters a nozzle operating at steady state at 20 bar, 2808°C, with a velocity of 80 m/s. Скачать
4.20 Figure P4.20 provides steady-state data for water vapor flowing through a piping configuration. Скачать
4.2 Refrigerant 134a exits a heat exchanger through 0.75-in diameter tubing with a mass flow rate Скачать
4.1 A laser Doppler velocimeter measures a velocity of 8 m/s as water flows in an open channel. Скачать
4.19 As shown in Fig. P4.19, steam at 80 bar, 4408°C, enters a turbine operating at steady state. Скачать
4.48 Steam enters a turbine operating at steady state at 2 MPa, 360C with a velocity of 100 m/s. Скачать
Air is compressed at a steady state from 1 bar, 300 K, to 6 bar with a mass flow rate of 4kg/s. Скачать
Water is in an expandable container that maintains mechanical equilibrium with the atmosphere. Скачать
A piston-cylinder assembly contains 1.5 lbm of gas undergoing a thermodynamic process 1 to 2. Скачать
Using the method of joints, determine the type of force in member ‘AD’ of the below shown truss. Скачать