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A thermometer with a time constant of 10 s is used to measure the temperature of a fluid that is heated by steam. The temperature rise can be approximated with a ramp of 10°C/min. Determine the time...
A fluid of constant density (p) at 40 °F (T) is flowing into an initially empty cylindrical tank of radius 10 ft. The cy...
A fluid of constant density (p) at 40 °F (T) is flowing into an initially empty cylindrical tank of radius 10 ft. The cylindrical vešsel is jacketed and heated with saturated steam (T) at 212 °F.The steam jacket does not cover either the top or bottom of the tank. The heat capacity of liquid (Cp liquid is near to that of water. The vessel is well stirred and the heat resistance of the jacket is negligible as are the heat...
A thermometer reading 8°C is brought into a room with a constant temperature of 35°C (a)...
A thermometer reading 8°C is brought into a room with a constant temperature of 35°C (a) If the thermometer reads 15°C after 2 minutes, what will it read after being in the room for 4 minutes? For 9 minutes? b) Graph the relation between temperature and time. Use TRACE to verify that your answers are correct. A pizza baked at 450°F is removed from the oven at 6:00 PM into a room that is a constant 73oF. After 5 minutes,...
A balloon as in Figure 2, carrying a first-order temperature sensor, rises through the atmosphere at a speed of 6m/s. A...
A balloon as in Figure 2, carrying a first-order temperature sensor, rises through the atmosphere at a speed of 6m/s. Assume the temperature varies with the altitude at 0.15 °C/30m. The balloon radios temperature and altitude readings back to the ground Determine the transfer function for the temperature sensor and define its parameters. (5) a. A zero temperature (0 C) is expected at an altitude of 2910 m; however, the balloon reads this at an altitude (5) c. If the...
please answer all questions O The Hong Kong Polytechnic University Section A 1. (a) A digital thermometer is designed to measure temperature ranging from 20°C to 45°c. 0) Describe the two steps in...
please answer all questions
O The Hong Kong Polytechnic University Section A 1. (a) A digital thermometer is designed to measure temperature ranging from 20°C to 45°c. 0) Describe the two steps involved in the digitization of analog signals (4 marks) (i) If the quantization error is required to be less than O. I C, how many bits are required to encode the temperature readings? (4 marks) (ii)What is the temperature reading of 26.S°C in binary form after the digitization?...
True or False/Short Answer Questions The ramp response of a 1st order system can be oscillating....
True or False/Short Answer Questions The ramp response of a 1st order system can be oscillating. Using the state space representation, the number of rows in the matrix B is equal to the number of outputs. Closed-Loop Control systems are insensitive to external disturbances. Two physically different systems must be modeled by two different transfer functions. For an LTI system, the time derivative of the unit impulse response is the unit ramp response. If a system has two real and...
Internal Flow Homework 1 Cooling water available at 10°C is used to condense steam at 30°c...
Internal Flow Homework 1 Cooling water available at 10°C is used to condense steam at 30°c in the condenser of a power plant at a rate of 0.60 kg/s by circulating the cooling water through a bank of 5-m-long 1.2-cm-internal-diameter thin copper tubes. Water enters the tubes at a mean velocity of 4 m/s, and leaves at a temperature of 24°C. The tubes are nearly isothermal at 30°C. Determine the average heat transfer coefficient between the water and the tubes,...
Cooling water available at 10°C is used to condense steam at 30°C in the condenser of...
Cooling water available at 10°C is used to condense steam at 30°C in the condenser of a power plant at a rate of 0.15 kg/s by circulating the cooling water through a bank of 5-m-long 1.2-cm-internal-diameter thin copper tubes. Water enters the tubes at a mean velocity of 4.75 m/s and leaves at a temperature of 24°C. The tubes are nearly isothermal at 30°C. The properties of water at the average temperature of (10+24)/2=17°C are: ρ = 998.7 kg/m3 cp...
Thermometer A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combust...
Thermometer A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. Ignition wires heat sample Stirrer Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter. Water In the laboratory a student burns a 0.568-g sample of tridecanedioic acid (C13H2404) in a bomb calorimeter containing 1080. g...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Thermometer Stirring red A student heats 68.26 grams of titanium to 99.16 °C and then drops it into a cup containing 80.78 grams of water at 23.25 °C. She measures the final temperature to be 30.68 °C. The heat capacity of the calorimeter (sometimes referred to as the...
Pre Lab for Calorimetry Introduction Calorimetry is used to determine the specific heats and heat of...
Pre Lab for Calorimetry Introduction Calorimetry is used to determine the specific heats and heat of transformation of materials. One can carry this out in one of two ways. One way is to take a material and isolate it from the environment and then put it a know power (energy per unit time) and measure how the temperature changes with time. When the material undergoes a phase transition (such as from ice to water) the temperature will stay constant until...
A thermometer reading 8°C is brought into a room with a constant temperature of 35°C (a) If the thermometer reads 15°C after 2 minutes, what will it read after being in the room for 4 minutes? For 9 minutes? b) Graph the relation between temperature and time. Use TRACE to verify that your answers are correct. A pizza baked at 450°F is removed from the oven at 6:00 PM into a room that is a constant 73oF. After 5 minutes,...
A balloon as in Figure 2, carrying a first-order temperature sensor, rises through the atmosphere at a speed of 6m/s. Assume the temperature varies with the altitude at 0.15 °C/30m. The balloon radios temperature and altitude readings back to the ground Determine the transfer function for the temperature sensor and define its parameters. (5) a. A zero temperature (0 C) is expected at an altitude of 2910 m; however, the balloon reads this at an altitude (5) c. If the...
please answer all questions
O The Hong Kong Polytechnic University Section A 1. (a) A digital thermometer is designed to measure temperature ranging from 20°C to 45°c. 0) Describe the two steps involved in the digitization of analog signals (4 marks) (i) If the quantization error is required to be less than O. I C, how many bits are required to encode the temperature readings? (4 marks) (ii)What is the temperature reading of 26.S°C in binary form after the digitization?...
Internal Flow Homework 1 Cooling water available at 10°C is used to condense steam at 30°c in the condenser of a power plant at a rate of 0.60 kg/s by circulating the cooling water through a bank of 5-m-long 1.2-cm-internal-diameter thin copper tubes. Water enters the tubes at a mean velocity of 4 m/s, and leaves at a temperature of 24°C. The tubes are nearly isothermal at 30°C. Determine the average heat transfer coefficient between the water and the tubes,...
Thermometer A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. Ignition wires heat sample Stirrer Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter. Water In the laboratory a student burns a 0.568-g sample of tridecanedioic acid (C13H2404) in a bomb calorimeter containing 1080. g...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Thermometer Stirring red A student heats 68.26 grams of titanium to 99.16 °C and then drops it into a cup containing 80.78 grams of water at 23.25 °C. She measures the final temperature to be 30.68 °C. The heat capacity of the calorimeter (sometimes referred to as the...
Pre Lab for Calorimetry Introduction Calorimetry is used to determine the specific heats and heat of transformation of materials. One can carry this out in one of two ways. One way is to take a material and isolate it from the environment and then put it a know power (energy per unit time) and measure how the temperature changes with time. When the material undergoes a phase transition (such as from ice to water) the temperature will stay constant until...
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