Homework Answers
Add Answer to:
Question # 3: The electric heating systems used in many houses consist of a simple dut...
Question 1 10 pts The electric heating systems used in many houses consist of a simple...
Question 1 10 pts The electric heating systems used in many houses consist of a simple duct with resistance heaters. Air is heated as it flows over resistance wires. Consider a 15 kW electric heating system. Air enters the heating section at 100 kPa and 17°C with a volume flow rate of 150 m3/min. If heat is lost from the air in the duct to the surroundings at a rate of 200 W, determine the exit temperature of the air...
Q. 3 (35 pt.) Air at 500K in a tank flows through a converging and diverging...
Q. 3 (35 pt.) Air at 500K in a tank flows through a converging and diverging nozzle with throat area of 1 em and exit area of 2.7 cm2 When the mass flow is 0.05 kg/s, pitot tube reads py 250.6 kPa and 240 kPa at the exit plane. (a) (15 pt.) Is there a normal shock wave in the duct? Justify your answer. If so, compute the Mach number just downstream of the shock (b) (10 pt.) Compute the...
Problem 4.018 SI Air enters a horizontal, constant-diameter heating duct operating at steady state at 300...
Problem 4.018 SI Air enters a horizontal, constant-diameter heating duct operating at steady state at 300 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.05 m2 Assuming the ideal gas model with k-1.4 for the air, determine: (a) the mass flow rate, in kg/s, (b) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer to the air, in...
Homework Problem IW8 3 Attemps Used 20 Due DateThu, Jul 30, 2020, 23:59:59 Current Time Thu,...
Homework Problem IW8 3 Attemps Used 20 Due DateThu, Jul 30, 2020, 23:59:59 Current Time Thu, Jul 30, 2020, 00:02:48 Air flows through a converging-diverging nozzle/differ. Assuming isentropic flow, air as an ideal gas, and constant specific heat determine the state at several locations in the system Note: The specific heat ratio and gas constant for air are given ask-1A od R-0.287 kg K respectively --Given Vues Inlet Temperature: TI (K) 358 Inlet pressure: PI (kPa) - 626 Inlet Velocity:...
Problem 4.018 SI Air enters a horizontal, constant-diameter heating duct operating at steady state at 290...
Problem 4.018 SI Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.06 m2 Assuming the ideal gas model with k 1.4 for the air, determine: (a) the mass flow rate, in kg/s, (b) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer to the air,...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
Please write the answer legibly. Question: As shown in the figure, a building with an internal...
Please write the answer legibly.
Question: As shown in the figure, a building with an internal volume of 400 m² is heated by an electric heater with a power of 30 kW. The electric heater is located in an adiabatic canal and the canal is inside the building. Initially, the air inside the building is at 14 °C and the atmospheric pressure at the location of the building is 95 kPa. There is a heat output of 450 kJ per...
Use a simple Brayton cycle gas turbine as the baseline for the following questions. Use a...
Use a simple Brayton cycle gas turbine as the baseline for the
following questions. Use a cold-air-standard analysis (R=0.287
kJ/kg-K, k=Cp/Cv=1.40, Cp= (k/(k-1))*R = 1.0045 kJ/kg-K) with the
following specifications:
Use a simple Brayton cycle gas turbine as the baseline for the following questions. Use a cold-air-standard analysis (R=0.287 kJ/kg-K, k=Cp/Cv=1.40, Cpr (k/(k-1))*R = 1.0045 kJ/kg-K) with the following specifications: Mass Inlet Press. Pressure Turbine Isentropic Eff Neglect combustion chemistry Flowrate T p Ratio Inlet T Comp Turb Neglect minor...
Need help with Thermodynamics Homework. WILL RATE HIGH! Thank you! Please answer them all for high...
Need help with Thermodynamics Homework. WILL RATE HIGH! Thank you! Please answer them all for high rate 1. Carbon Oxide (CO) initially occupying 2.9 m3 at 7.4 bar, 246.85°C undergoes an internally reversible expansion during which pV1.4 = constant to a final state where the temperature is 36.85°C. Assuming the ideal gas model, determine the entropy change, in Joules/K. 2. Water at 10 bar, 240°C enters a turbine operating at steady state and exits at 4 bar. Stray heat transfer...
homeWork Problem HW83 Attemps Used 1/20 Due Date - Thu, Jul 30, 2020, 23:59:59 Current Time...
homeWork Problem HW83 Attemps Used 1/20 Due Date - Thu, Jul 30, 2020, 23:59:59 Current Time Thu, Jul 30, 2020, 00:58:21 Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant specific heats determine the state at several locations in the system Note: The specific heat ratio and gas constant for air are given as k-1.4 and R-0.287 kJ/kg-K respectively, --Given Values Inlet Temperature: T1 (K) 358 Inlet pressure: P1 (kPa) 626 Inlet Velocity:...
Question 1 10 pts The electric heating systems used in many houses consist of a simple duct with resistance heaters. Air is heated as it flows over resistance wires. Consider a 15 kW electric heating system. Air enters the heating section at 100 kPa and 17°C with a volume flow rate of 150 m3/min. If heat is lost from the air in the duct to the surroundings at a rate of 200 W, determine the exit temperature of the air...
Q. 3 (35 pt.) Air at 500K in a tank flows through a converging and diverging nozzle with throat area of 1 em and exit area of 2.7 cm2 When the mass flow is 0.05 kg/s, pitot tube reads py 250.6 kPa and 240 kPa at the exit plane. (a) (15 pt.) Is there a normal shock wave in the duct? Justify your answer. If so, compute the Mach number just downstream of the shock (b) (10 pt.) Compute the...
Problem 4.018 SI Air enters a horizontal, constant-diameter heating duct operating at steady state at 300 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.05 m2 Assuming the ideal gas model with k-1.4 for the air, determine: (a) the mass flow rate, in kg/s, (b) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer to the air, in...
Homework Problem IW8 3 Attemps Used 20 Due DateThu, Jul 30, 2020, 23:59:59 Current Time Thu, Jul 30, 2020, 00:02:48 Air flows through a converging-diverging nozzle/differ. Assuming isentropic flow, air as an ideal gas, and constant specific heat determine the state at several locations in the system Note: The specific heat ratio and gas constant for air are given ask-1A od R-0.287 kg K respectively --Given Vues Inlet Temperature: TI (K) 358 Inlet pressure: PI (kPa) - 626 Inlet Velocity:...
Problem 4.018 SI Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.06 m2 Assuming the ideal gas model with k 1.4 for the air, determine: (a) the mass flow rate, in kg/s, (b) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer to the air,...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
Please write the answer legibly.
Question: As shown in the figure, a building with an internal volume of 400 m² is heated by an electric heater with a power of 30 kW. The electric heater is located in an adiabatic canal and the canal is inside the building. Initially, the air inside the building is at 14 °C and the atmospheric pressure at the location of the building is 95 kPa. There is a heat output of 450 kJ per...
Use a simple Brayton cycle gas turbine as the baseline for the
following questions. Use a cold-air-standard analysis (R=0.287
kJ/kg-K, k=Cp/Cv=1.40, Cp= (k/(k-1))*R = 1.0045 kJ/kg-K) with the
following specifications:
Use a simple Brayton cycle gas turbine as the baseline for the following questions. Use a cold-air-standard analysis (R=0.287 kJ/kg-K, k=Cp/Cv=1.40, Cpr (k/(k-1))*R = 1.0045 kJ/kg-K) with the following specifications: Mass Inlet Press. Pressure Turbine Isentropic Eff Neglect combustion chemistry Flowrate T p Ratio Inlet T Comp Turb Neglect minor...
homeWork Problem HW83 Attemps Used 1/20 Due Date - Thu, Jul 30, 2020, 23:59:59 Current Time Thu, Jul 30, 2020, 00:58:21 Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant specific heats determine the state at several locations in the system Note: The specific heat ratio and gas constant for air are given as k-1.4 and R-0.287 kJ/kg-K respectively, --Given Values Inlet Temperature: T1 (K) 358 Inlet pressure: P1 (kPa) 626 Inlet Velocity:...
Most questions answered within 3 hours.
-
Write a program to solve the Josephus problem, with the following
modification:
Sample Input:
./a.out n...
asked 48 minutes ago -
At the start of a CD it is spinning at a rate of 525 rpm
(revolutions...
asked 1 hour ago -
4. Without doing any calculations, predict whether the observed
∆T would increase, decrease or remain the...
asked 2 hours ago -
Based on the range, which of the following sets of scores has
the greatest variability? 3,...
asked 3 hours ago -
Ripples in a pond travel at a velocity of 3 m/s with one peak
passing a...
asked 3 hours ago -
A man stands on the roof of a building of height 13.0 mm and
throws a...
asked 3 hours ago -
The extent to which assets are financed by borrowed funds and
other liabilities is indicated by:...
asked 4 hours ago -
Explain in detail
Germany is the fifth largest economy
explain what goods and services Germany specializes...
asked 4 hours ago -
The density of platinum is 21.45 g/mL. If a cube of platinum
with a mass of...
asked 5 hours ago -
Accounts Receivable
Sales
A/R Posting
Extended Sales Invoice
Packing Slip
Compare invoice to packing slip 2...
asked 5 hours ago -
Michaella, age 23, is a full-time law student and is claimed by
her parents as a...
asked 5 hours ago -
Why are polymers not typically casted into products?
asked 5 hours ago