An insulated, rigid vessel is initially empty (evacuated). However, it is connected to a steam line that is maintained at 200 psia and 500 F. The valve is opened until the flow into the tank slows and stops, at which point the valve is closed. What is the temperature within the vessel
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- A gasoline engine is at a location where the temperature is measured to be 14.2 °C and produces 347 KW at 5800 rpm while consuming 0.0184 kg's of fuel. During operation, data shows that its mechanical energy loss is 18 %, the actual volume of air going into each cylinder is 80% (the volumetric efficiency has a negligible variation), and the actual fuel-to-air ratio is 0.065. What were the engine parameters at sea level conditions if the pressure here is 100.3 kPa and the temeratur here is 18 Uc hotter than that of the alevated conditions? Determine at sea-level conditions the ISFC in ka/kW-hr Use four (4) decimal places in your solution and answer.A gasoline engine is at a location where the temperature is measured to be 14.2 °C and produces 347 KW at 5800 rpm while consuming 0.0184 kg's of fuel. During operation, data shows that its mechanical energy loss is 18 %, the actual volume of air going into each cylinder is 80% (the volumetric efficiency has a negligible variation), and the actual fuel-to-air ratio is 0.065. What were the engine parameters at sea level conditions if the pressure here is 100.3 kPa and the temeratur here is 18 Uc hotter than that of the alevated conditions? Determine at sea-level conditions the ISFC in ka/kW-hrin a turbine gas expands such that the process is isentropic and the gas pressure decreases from 900kPa to 200kPa. Initial temperature of the gas is measured as 375°C. Determine the temperature of the gas after expansion. Assume the specific heat of gas as γ= 1.4. Determine the temperature of the gas after expansion if it were to be assumed specific heat of gas γ=1.3. Determine the % error in Temperature due to the wrong assumption of specific heat ratio.
- You are provided a horizontal tube with one entrance and one exit. Air (Cp = 1.005 kJ/(kg-K)) is passing through the pipe and is assumed ideal. The inlet conditions are 102 psia, 101 degrees Fahrenheit and velocity 9 feet/second. Determine the outlet velocity (ft/s) and outlet temperature (degrees Fahrenheit) if the exit conditions are 2.1 psia. Assume the process occurs under adiabatic conditions. Write all the assumptions you made in solving the problem.A gasoline engine is at a location where the temperature is measured to be 14.8 °C and produces 300 kW at 5800 rpm while consuming 0.0184 kg/s of fuel. During operation, data shows that its mechanical energy loss is 18 %, the actual volume of air going into each cylinder is 80% (the volumetric efficiency has a negligible variation), and the actual fuel-to-air ratio is 0.065. What were the engine parameters at sea level conditions if the pressure here is 99.3 kPa and the temperature here is 18 0C hotter than that of the elevated condition? Determine at sea-level conditions the Brake Power in kW.A thermometer is being designed for a process in which the temperature varies from 0 to 180 °C; from experience it is known that the process temperature, when it gets out of control, reaches up to 240 ° C. Considering that only the bulb is in contact with the part inside the equipment, what should be the volume of the safety vial? It is known that the bulb has a length of 1.2 cm and a diameter of 0.5 cm; the capillary has a length of 20 cm and the scale of the thermometer is -10 to 190 ° C. Consider that the coefficient of volumetric expansion for mercury is 1.82×10−4 ° C− 1
- When the tire temperature is 30 degrees Celsius, the gage pressure reading on a vehicle tire is 240 kPa. The car is driven to a warmer climate, and the tire temperature rises to 65 degrees Celsius. Make reasonable assumptions to estimate the gage pressure in the tireApplications of DE A thermometer at initial temperature of 10C is brought into a room whose temperature is 90C. Two minutes later the thermometer reading is 20C. Determine the temperature reading at any time t. The time taken for the thermometer to increase 30C?Consider an evacuated, insulated, rigid tank connected through a closed valve to a high-pressure line. The valve is opened and the tank is filled with the air in the line. If the air is an ideal gas Please formulate the equation to determine the final temperature of the tank when the tank pressure equals that of the line. if the initial temperature of air stream equals 40 oC. What is the final temperature?
- By superheating the stream to a high temperature, the average steam temperature during heat rejection can be increased. True or FalseSteam generators are a type of heat exchanges that are used inpower plants to generate steam at desired pressure andtemperature (Fig. Q1.b). In a steam generator, saturated liquidwater at 30°C enters a 60-mm diameter tube at the volume flowrate of 12 L/s. After exchanging heat with hot gas, the waterchanges to steam and leaves the generator at a pressure of 9 MPaand a temperature of 400°C. During this process, the diameter ofthe water/steam tube does not change. Where necessary, assume air as an ideal gas and consider R = 287J/(kg.K), Cp = 1005 J/(kg.K), Cv = 718 J/(kg.K). (i) Calculate the steam mass flow rate and inlet velocity of the steam? (ii) What is the exit velocity of the steam? (iii) Calculate the rate of heat transfer (in MW) required tochange the phase of liquid water to steam.The pressure on the suction side of pumps is typically low, and the surfaces on that side of the pump are susceptible to cavitation, especially at high fluid temperatures. If the minimum pressure on the suction side of a water pump is 0.51 psia absolute, determine the maximum water temperature to avoid the danger of cavitation. Find the maximum water temperature to avoid the danger of cavitation (in ºF).