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6. A 20-kg/s flow of waste water at 85 °C is used to generate power with...
A Pelton wheel with an efficiency of 85% is used to produce hydroelectric power from flow...
A Pelton wheel with an efficiency of 85% is used to produce hydroelectric power from flow of water behind a dam with an elevation head of 420 m. The average radius of the wheel and its angular velocity are 2.0 m and 220 rpm, respectively. This turbine works at its optimum rotation rate (which produces maximum power). The turning angle of the buckets is ? = 165° and nozzle diameter is given as 8.00 cm. a. Calculate volumetric flow rate...
A 100ft waterfall has a flow rate of 1000 kg/s is to be used to generate...
A 100ft waterfall has a flow rate of 1000 kg/s is to be used to generate power by striking fins located on the perimeter of a wheel. Determine the power generation potential of this stream of water.
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s, and leaves at 150 kPa and 350 m/s. The isentropic efficiency of the turbine is 85%. Neglect potential energy. (I) Determine the exit temperature of the steam, and its quality (if saturated mixture) (ii) Calculate the actual power output of the turbine, in kW (iii) Illustrate a T-s diagram with respect to saturation lines for the isentropic process by clearly indicating all pressure, temperature,...
Problem-1 (200) A power plant with a mass flow rate of 281.8 Kg/s operates on a...
Problem-1 (200) A power plant with a mass flow rate of 281.8 Kg/s operates on a regenerative vapor power cycle with one open feed-water heater. Steam enters the first turbine stage at 14 MPa, 600°C and expands to 2 MPa, where some of the steam is extracted and diverted to the open feed-water heater operating at 2 MPa. The remaining steam expands through the second turbine stage to the condenser pressure of 8 kPa. Saturated liquid exits the open feed-water...
Consider a power plant with water as the working fluid that operates on a Rankine cycle....
Consider a power plant with water as the working fluid that operates on a Rankine cycle. It has a net power output of 40 MW. Superheated steam enters the turbine at 8 MPa and 600°C (h = 3642 kJ/kg; s = 7.0206 kJ/kg K) and is cooled in the condenser at a pressure of 10 kPa by running cooling water from a lake through the tubes of the condenser. The isentropic efficiency of the turbine is 85%. The pump has...
Consider a power plant with water as the working fluid that operates on a Rankine cycle. It has a net power output of 40 MW
Consider a power plant with water as the working fluid that operates on a Rankine cycle. It has a net power output of 40 MW. Superheated steam enters the turbine at 8 MPa and 600°C (h = 3642 kJ/kg; s = 7.0206 kJ/kg K) and is cooled in the condenser at a pressure of 10 kPa by running cooling water from a lake through the tubes of the condenser. The isentropic efficiency of the turbine is 85%. The pump has...
1) 2.5 m/s of air at 150°C is used to heat 0.35 kg/s of 20°C water....
1) 2.5 m/s of air at 150°C is used to heat 0.35 kg/s of 20°C water. The heat exchanger is a finned-tube cross flow heat exchanger with both sides unmixed. The overall heat transfer coefficient associated with the hot side is 120 W/(m2 °C). The hot-side area is 20 m². Assume a constant specific heat for air and water of Gezic = 1.005 kJ/(kg °C), Senator = 4.2 kJ/(kg °C). The pressure of the hot air is P = 1.0...
ENGR 320 Exam2 Name 1: (15+5 pts) A hydroelectric power plant takes in 25 m's of water through it...
ENGR 320 Exam2 Name 1: (15+5 pts) A hydroelectric power plant takes in 25 m's of water through its turbine and discharges it to the atmosphere at V2-I m/s. The head loss in the turbine and penstock system is 10 m. Assuming turbulent flow, a -1.12, (a) What it the power in MW extracted by the turbine? () If the efficiency of the turbine and electrical generator is 85% what is the net power (in MW) generated by this plant?...
1) 2.5 m3/s of air at 150°C is used to heat 0.342 kg/s of 20°C water....
1) 2.5 m3/s of air at 150°C is used to heat 0.342 kg/s of 20°C water. The heat exchanger is a finned-tube cross flow heat exchanger with both sides unmixed. The overall heat transfer coefficient associated with the hot side is 120 W/(m2°C). The hot-side area is 20 m2. Assume a constant specific heat for air and water of Crezia = 1.005 kJ/(kgº), Crewater = 4.2 kJ/(kg °C). The pressure of the hot air is P = 1.0 atm. The...
P2:30 Kerosene at 96 C and flow rate of 20 kg/s must be cooled to 85...
P2:30 Kerosene at 96 C and flow rate of 20 kg/s must be cooled to 85 C by crude oil at 20 C and flow rate of 20 kg/s. A 211/4 in-ID shell and tube exchanger containing 1-in OD, 13 BWG tubes laid out on a 11/4 inch square pitch is used. The number of tubes are 166 and they are 5 m long. Find the outlet temperatures when the exchanger is new. Route the crude oil through the tubes....
Problem-1 (200) A power plant with a mass flow rate of 281.8 Kg/s operates on a regenerative vapor power cycle with one open feed-water heater. Steam enters the first turbine stage at 14 MPa, 600°C and expands to 2 MPa, where some of the steam is extracted and diverted to the open feed-water heater operating at 2 MPa. The remaining steam expands through the second turbine stage to the condenser pressure of 8 kPa. Saturated liquid exits the open feed-water...
1) 2.5 m/s of air at 150°C is used to heat 0.35 kg/s of 20°C water. The heat exchanger is a finned-tube cross flow heat exchanger with both sides unmixed. The overall heat transfer coefficient associated with the hot side is 120 W/(m2 °C). The hot-side area is 20 m². Assume a constant specific heat for air and water of Gezic = 1.005 kJ/(kg °C), Senator = 4.2 kJ/(kg °C). The pressure of the hot air is P = 1.0...
ENGR 320 Exam2 Name 1: (15+5 pts) A hydroelectric power plant takes in 25 m's of water through its turbine and discharges it to the atmosphere at V2-I m/s. The head loss in the turbine and penstock system is 10 m. Assuming turbulent flow, a -1.12, (a) What it the power in MW extracted by the turbine? () If the efficiency of the turbine and electrical generator is 85% what is the net power (in MW) generated by this plant?...
1) 2.5 m3/s of air at 150°C is used to heat 0.342 kg/s of 20°C water. The heat exchanger is a finned-tube cross flow heat exchanger with both sides unmixed. The overall heat transfer coefficient associated with the hot side is 120 W/(m2°C). The hot-side area is 20 m2. Assume a constant specific heat for air and water of Crezia = 1.005 kJ/(kgº), Crewater = 4.2 kJ/(kg °C). The pressure of the hot air is P = 1.0 atm. The...
P2:30 Kerosene at 96 C and flow rate of 20 kg/s must be cooled to 85 C by crude oil at 20 C and flow rate of 20 kg/s. A 211/4 in-ID shell and tube exchanger containing 1-in OD, 13 BWG tubes laid out on a 11/4 inch square pitch is used. The number of tubes are 166 and they are 5 m long. Find the outlet temperatures when the exchanger is new. Route the crude oil through the tubes....
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