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Please help.!! Having a hard time with this problem.!! Answer
for 10. Is) 0.0004 and 11....
Please Help.! Having a hard time trying to figure this problem out.!! The answer is 27%.!!...
Please Help.! Having a hard time trying to figure this problem
out.!! The answer is 27%.!! Thanks
7. Air at ! 00 kPa, 20 and 50% relative humidity is heated in a control volume to so while keeping the pressure constan at 100 kPa. The relative humidity in the final state is
An air-water vapor mixture enters a heater-humidifier unit at 5°C, 100 kPa, 50% rh. The flow rate of dry air is 0.1 kg/s. Liquid water at 10°C is sprayed into the mixture al the rate of 0.0022 kg/s. The mixture leaves the unit at 30°C, 100 kPa. Calculate
An air-water vapor mixture enters a heater-humidifier unit at 5°C, 100 kPa, 50% rh. The flow rate of dry air is 0.1 kg/s. Liquid water at 10°C is sprayed into the mixture al the rate of 0.0022 kg/s. The mixture leaves the unit at 30°C, 100 kPa. Calculate (a) the relative humidity at the outlet (b) the rate of heat transfer to the unit
Problem I: Not applicable for 2017 Problem II: In an R-134a vapor-compression home heat pump, R-134A...
Problem I: Not applicable for 2017 Problem II: In an R-134a vapor-compression home heat pump, R-134A enters the compressor (75% isentropic efficiency) as a saturated vapor at 200 kPa and leaves at 800 kPa. The refrigerant goes through a constant pressure condenser and leaves as a saturated liquid. The refrigerant then goes through an adiabatic expansion valve enters the evaporator as a liquid-vapor mixture. The mass flow rate of refrigerant is 0.1 kg/s. and Cod A. Write the equation for...
Problem 2: A residential air-conditioner with an actual cooling capacity of 14.06 kJ/s (4 tons), cools and dehumidifies a steady stream of air flowing over the cooling coil. Actual states for the Ref...
Problem 2: A residential air-conditioner with an actual cooling capacity of 14.06 kJ/s (4 tons), cools and dehumidifies a steady stream of air flowing over the cooling coil. Actual states for the Refrigerant 134a are given Notice that the compressor efficiency is less than 100% and there are small pressure drops given for the heat exchangers. The coefficient of performance is 3.51 for the actual cycle. Changes in kinetic and potential energy are negligible. The warm indoor air temperature entering...
(thermodynamics) i need help with questions 5,6,7 5 Consider a steam power plant that operates on...
(thermodynamics) i need help with questions 5,6,7
5 Consider a steam power plant that operates on a simple ideal Rankine cycle and has a net power output of 45MW. Steam enters the turbine at 7 MPa and 0Cand is cooed in the condenser at a pressure of 10 kPa by nuning cooling watr from a lake through the tubes of the condenser at a nte of 2000 kgs Show the cycle on a T-s diagam with respet to saturation lines,...
2. (12 marks total) A number of gas turbine engines today have compressor intercooling provided by...
2. (12 marks total) A number of gas turbine engines today have compressor intercooling provided by injecting liquid water into the air leaving the low pressure compressor. The intercooler in the sketch provides cooling partly by cold water injection and partly by heat transfer to the surroundings. A steady flow of air enters 1 mw the compressor at T = 20°C, P = 100 kPa and a relative humidity compressor intercooler of o. = 50% at a flow rate of...
Please show all equations needed in answer and please specify which thermodynamics table is used for...
Please show all
equations needed in answer and please specify which thermodynamics
table is used for what values taken from any tables
Waeer 2C 12 MMP 25 c Problem I: 12 MP An air conditioner with R-134a as the working fluid maintains a house at a constant temperature of 23°C during the summer. The minimum temperature in the air conditioner cycle is -8°C, and the maximum temperature in the air conditioner cycle is equivalent to the outside temperature. The house...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in advance!! Neatly sketch the...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
Neatly sketch the complete heat-pump cycle from Question 1 on a P-h diagram, showing clearly all six processes (1) - (2) - (3) - (4) - (5) - (6)-(1). If you have a printer available, you may print this PDF file of the R134a P-h diagram. Otherwise, draw a very neat scale copy of the P-h diagram shown below. You do not have to type any response...
please solve it quickly ignore p=75 Problem 3 Part a P=57 Moist air enters the cooler...
please solve it quickly
ignore p=75
Problem 3 Part a P=57 Moist air enters the cooler of an air conditioning unit at 25 °C and a relative humidity of 70%. The cooled and dehumidified air leaves the cooler saturated at 18 °C. The temperature of condensed water is 18 °C. The pressure is constant at 101.325 kPa. The mass flow rate of the dry air is mda=67 kg/s. Use the psychometric chart to determine a) The humidity ratio at the...
Please Help.! Having a hard time trying to figure this problem
out.!! The answer is 27%.!! Thanks
7. Air at ! 00 kPa, 20 and 50% relative humidity is heated in a control volume to so while keeping the pressure constan at 100 kPa. The relative humidity in the final state is
Problem I: Not applicable for 2017 Problem II: In an R-134a vapor-compression home heat pump, R-134A enters the compressor (75% isentropic efficiency) as a saturated vapor at 200 kPa and leaves at 800 kPa. The refrigerant goes through a constant pressure condenser and leaves as a saturated liquid. The refrigerant then goes through an adiabatic expansion valve enters the evaporator as a liquid-vapor mixture. The mass flow rate of refrigerant is 0.1 kg/s. and Cod A. Write the equation for...
Problem 2: A residential air-conditioner with an actual cooling capacity of 14.06 kJ/s (4 tons), cools and dehumidifies a steady stream of air flowing over the cooling coil. Actual states for the Refrigerant 134a are given Notice that the compressor efficiency is less than 100% and there are small pressure drops given for the heat exchangers. The coefficient of performance is 3.51 for the actual cycle. Changes in kinetic and potential energy are negligible. The warm indoor air temperature entering...
(thermodynamics) i need help with questions 5,6,7
5 Consider a steam power plant that operates on a simple ideal Rankine cycle and has a net power output of 45MW. Steam enters the turbine at 7 MPa and 0Cand is cooed in the condenser at a pressure of 10 kPa by nuning cooling watr from a lake through the tubes of the condenser at a nte of 2000 kgs Show the cycle on a T-s diagam with respet to saturation lines,...
2. (12 marks total) A number of gas turbine engines today have compressor intercooling provided by injecting liquid water into the air leaving the low pressure compressor. The intercooler in the sketch provides cooling partly by cold water injection and partly by heat transfer to the surroundings. A steady flow of air enters 1 mw the compressor at T = 20°C, P = 100 kPa and a relative humidity compressor intercooler of o. = 50% at a flow rate of...
Please show all
equations needed in answer and please specify which thermodynamics
table is used for what values taken from any tables
Waeer 2C 12 MMP 25 c Problem I: 12 MP An air conditioner with R-134a as the working fluid maintains a house at a constant temperature of 23°C during the summer. The minimum temperature in the air conditioner cycle is -8°C, and the maximum temperature in the air conditioner cycle is equivalent to the outside temperature. The house...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
Neatly sketch the complete heat-pump cycle from Question 1 on a P-h diagram, showing clearly all six processes (1) - (2) - (3) - (4) - (5) - (6)-(1). If you have a printer available, you may print this PDF file of the R134a P-h diagram. Otherwise, draw a very neat scale copy of the P-h diagram shown below. You do not have to type any response...
please solve it quickly
ignore p=75
Problem 3 Part a P=57 Moist air enters the cooler of an air conditioning unit at 25 °C and a relative humidity of 70%. The cooled and dehumidified air leaves the cooler saturated at 18 °C. The temperature of condensed water is 18 °C. The pressure is constant at 101.325 kPa. The mass flow rate of the dry air is mda=67 kg/s. Use the psychometric chart to determine a) The humidity ratio at the...
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