4 The specific weight of NO2 if the pressure equal to 85 KPa at temperature equal...
4 The specific weight of NO2 if the pressure equal to 85 KPa at temperature equal to 30 F knowing that the Rco2=65 J/Kg.K In N/m3 (2 Points) 0 42.338 0 45.387 4.2338 4.5387
4 The specific weight of NO2 if the pressure equal to 85 KPa at temperature equal to 30 F knowing that the Rco2=65 J/Kg.K In N/m3 (2 Points) 0 42.338 0 45.387 4.2338 4.5387
In an Otto cycle air is compressed from an initial pressure 120 kPa and temperature 370 T (K). The cycle has compression ratio of 10. In the constant volume heat addition process 1000 kJ/kg heat is added into the air. Considering variation on the specific heat of air with temperature, determine, (a) the pressure and temperature at the end of heat addition process (show the points on P-v diagram) (b) the network output (c) the thermal efficiency (d) the mean...
A jet engine propels an aircraft at 254 m/s through air at 39 kPa and 273 K. The compressor pressure ratio is 9 and the temperature at the turbine inlet is 873 K. b) Taking the pressure in the combustion chamber as 843.5 kPa and the temperature at the turbine exit to be 518 K, determine the velocity of the exhaust gases. Give your answer in m/s to 2 decimal places. Assume ideal operation for all components and constant specific...
At what depth in a fluid is the pressure equal to 240 kpa given the field's specific weight is 5810 N.m^2? 0.0245m 24.5 m 40. 9 m 240 m 409 m
At sea level, water boils at 100 °C, and the absolute atmospheric pressure is 101 kPa. As the atmospheric pressure above water decreases, the temperature required for boiling also decreases, at a rate of 3.1 kPa per "C. For the system shown below: a. What is the absolute atmospheric pressure at an elevation of 4100 m, assuming a constant unit weight of air of 11.80 N/m3? b. What will be the boiling temperature for water at this elevation? Elev. =...
A jet engine propels an aircraft at 254 m/s through air at 39 kPa and 273 K. The compressor pressure ratio is 9 and the temperature at the turbine inlet is 873 K. a) Determine the temperature of the air as it enters the exit nozzle. Give your answer in Kelvin to 2 decimal places Assume ideal operation for all components and constant specific heats at room temperature. Take the properties of air at room temperature to be R =...
4) Volume 2.5 m^3 air in a rigid tank with initial pressure 100 kPa and temperature 25°C There. It is applied to the tank feed line by a valve. Pressure of air flowing through the supply line 600 kPa and temperature is 25°C. By opening the valve, the pressure of the air in the tank is air entering the tank until it is equal to the pressure of the air It is closed. A thermometer placed in the tank lasts...
When the hydrofoil shown was tested, the minimum pressure on the surface of the foil was found to be 75 kPa absolute when the foil was submerged 1.8 m and towed at a speed of 6 m/s. At the same depth, at what speed will cavitation first occur? Assume irrotational flow for both cases and T = 10 °C. Water = 10°C (50°F) (a) What is the absolute pressure of the atmosphere? kPa (b) What is the specific weight of...
Water is the working substance for an ideal Rankine cycle. The condenser pressure is equal to 7.5 kPa. The boiler pressure is 8 MPa. Find: a) The specific work required by the pump b) The specific heat addition for the boiler c) The specific heat rejection for the condenser d) The specific work out of the turbine e) The thermal efficiency of the cycle 2. Solve problem 1, but this time assuming that the temperature at the inlet of the...