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Problem 3 The condenser of a large power plant is to remove condensing at 30° C...
PROBLEM 3 (45 points) The condenser of a large steam power plant is a heat exchanger...
PROBLEM 3 (45 points) The condenser of a large steam power plant is a heat exchanger in which steam is condensed to liquid water. Assume the condenser to be a parallel flow shell-and-tube heat exchanger consisting of a single shell and 1x10 tubes, each executing two passes. The inner diameter of tubes is D = 50 mm and its thickness is 5 mm (Do not ignore the thickness). The steam condenses on their outer surface. Thermal conductivity of the tube...
The condenser of a large steam power plant is a heat exchanger in which steam is...
The condenser of a large steam power plant is a heat exchanger in which steam is condensed to liquid water. Assume the condenser to be a shell-and-tube heat exchanger consisting of a single shell and 30,000 tubes, each executing two passes (see figure below). The tubes are of thin wall construction with D=25mm, and steam condenses on their outer surface with an associated convection coefficient ho=11,000W/ m K The heat transfer rate that must be effected by the heat exchanger...
3-40 In the condenser of a steam power plant the steam from the turbine enters the...
3-40 In the condenser of a steam power plant the steam from the turbine enters the condenser at 0.10 bar with a quality of 95 percent and leaves at the same pressure as a saturated liquid. The steam is condensed by transferring heat to a stream of cooling water which enters at 1.3 bars and 5°C and leaves the heat exchanger at 1.2 bars and 25°C·The environmental temperature is 5°C. Determine a. the change in stream availability (exergy) of the...
The condenser downstream of the turbine in a large Rankine cycle power plant is constructed of...
The condenser downstream of the turbine in a large Rankine cycle power plant is constructed of 30,000 25-mm tubes. The steam condenses at 50 ºC with a heat transfer coefficient of 9,000 W/m2 ·K on the outside the tubes. The cooling water enters the tube side of the condenser at 20 ºC at a flow rate of 17,000 kg/s. For a 1000 MW (net) power output and a cycle thermal efficiency of 42%, determine: a. the cooling rate required (in...
Steam is to be condensed in the condenser of a steam power plant at a temperature...
Steam is to be condensed in the condenser of a steam power plant
at a temperature of 50C with cooling
water from a nearby lake, which enters the tubes of the condenser
at 18C at a rate of 101 kg/s and leaves
at 27C. Determine the rate of condensation of the steam in the
condenser.
Steam is to be condensed in the condenser of a steam power plant at a temperature of 50°C with cooling water from a nearby lake,...
Section C – shell and tube heat exchanger sizing The vapour condenser for the combined gas-steam ...
Section C – shell and tube heat exchanger sizing The vapour condenser for the combined gas-steam power cycle described in Section B heats river water from 15 °C to 18 °C. The condenser is a shell and tube heat exchanger with one shell pass and two tube passes. The cooling water is inside the tubes while the shell side has the condensing vapour. More details: a. The tube OD is 1 ¼” (inches), the tube wall thickness is 0.05 inches....
A combined cycle power plant consists of two gas turbines; cach produces a net power of...
A combined cycle power plant consists of two gas turbines; cach produces a net power of 160 MW, and a 70 MW steam power cycle. The combustion of the fuel in the combustion chamber produces hot gases at 1400°C. The hot gases leaving the gas turbines are used to generate steam through the heat recovery steam generator (Boiler). The hot gases enter the heat recovery steam generator at 880°C and leaves at 660°C. Water enters the isentropic pump as saturated...
A combined gas-steam power plant uses a simple gas turbine for the topping cycle and a...
A combined gas-steam power plant uses a simple gas turbine for
the topping cycle and a simple Rankine cycle for the bottoming
cycle. Atmospheric air enters the compressor at 101 kPa and 20 °C,
and the maximum gas cycle temperature is 1100 °C. The
compressor pressure ratio is 8. The gas stream leaves the heat
exchanger at the saturation temperature of the steam flowing
through the heat exchanger. Steam enters the heat exchanger at a
pressure of 6 MPa and...
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...
In a large steam power plant, the combustion of coal provides a heat rate of -...
In a large steam power plant, the combustion of coal provides a heat rate of - 2500 MW at a flame temperature of T-1000 K. Heat is rejected from the plant to a river flowing at T. = 300 K. Heat is transferred from the combustion products to the exterior of large tubes in the boiler by way of radiation and convection, through the boiler tubes by conduc- tion, and then from the interior tube surface to the working fluid...
PROBLEM 3 (45 points) The condenser of a large steam power plant is a heat exchanger in which steam is condensed to liquid water. Assume the condenser to be a parallel flow shell-and-tube heat exchanger consisting of a single shell and 1x10 tubes, each executing two passes. The inner diameter of tubes is D = 50 mm and its thickness is 5 mm (Do not ignore the thickness). The steam condenses on their outer surface. Thermal conductivity of the tube...
The condenser of a large steam power plant is a heat exchanger in which steam is condensed to liquid water. Assume the condenser to be a shell-and-tube heat exchanger consisting of a single shell and 30,000 tubes, each executing two passes (see figure below). The tubes are of thin wall construction with D=25mm, and steam condenses on their outer surface with an associated convection coefficient ho=11,000W/ m K The heat transfer rate that must be effected by the heat exchanger...
3-40 In the condenser of a steam power plant the steam from the turbine enters the condenser at 0.10 bar with a quality of 95 percent and leaves at the same pressure as a saturated liquid. The steam is condensed by transferring heat to a stream of cooling water which enters at 1.3 bars and 5°C and leaves the heat exchanger at 1.2 bars and 25°C·The environmental temperature is 5°C. Determine a. the change in stream availability (exergy) of the...
Steam is to be condensed in the condenser of a steam power plant
at a temperature of 50C with cooling
water from a nearby lake, which enters the tubes of the condenser
at 18C at a rate of 101 kg/s and leaves
at 27C. Determine the rate of condensation of the steam in the
condenser.
Steam is to be condensed in the condenser of a steam power plant at a temperature of 50°C with cooling water from a nearby lake,...
A combined cycle power plant consists of two gas turbines; cach produces a net power of 160 MW, and a 70 MW steam power cycle. The combustion of the fuel in the combustion chamber produces hot gases at 1400°C. The hot gases leaving the gas turbines are used to generate steam through the heat recovery steam generator (Boiler). The hot gases enter the heat recovery steam generator at 880°C and leaves at 660°C. Water enters the isentropic pump as saturated...
A combined gas-steam power plant uses a simple gas turbine for
the topping cycle and a simple Rankine cycle for the bottoming
cycle. Atmospheric air enters the compressor at 101 kPa and 20 °C,
and the maximum gas cycle temperature is 1100 °C. The
compressor pressure ratio is 8. The gas stream leaves the heat
exchanger at the saturation temperature of the steam flowing
through the heat exchanger. Steam enters the heat exchanger at a
pressure of 6 MPa and...
In a large steam power plant, the combustion of coal provides a heat rate of - 2500 MW at a flame temperature of T-1000 K. Heat is rejected from the plant to a river flowing at T. = 300 K. Heat is transferred from the combustion products to the exterior of large tubes in the boiler by way of radiation and convection, through the boiler tubes by conduc- tion, and then from the interior tube surface to the working fluid...
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