What is the mass flow rate of the cooling water required

Assignment Help Mechanical Engineering

Reference no: EM13718053

Steam enters the condenser (heat exchanger) of a steam power plant at 20kPa and a quality of 95% with a mass flow rate of 20,000kg/h. A nearby river is used as a source of cooling water where the water will circulate through the tubes within the condenser. To prevent thermal pollution of the river, the cooling water is not to have more than a 10 degree C increase in temperature. If the steam is to leave the condenser as a saturated liquid at 20kPa, what is the mass flow rate of the cooling water required?

Reference no: EM13718053

Questions Cloud

Ammonia enters a valve as saturated liquid : Ammonia enters a valve as saturated liquid at 9 bar and undergoes a throttling process to a pressure of 2 bar. Determine the rate of entropy production per unit mass of ammonia flowing, in kW/(kgÂ·K). If the valve were replaced by a power-recovery tu..

Assuming a constant specific heat for the cooling water : A refrigeration unit operating on R-134a is used to maintain a freezer at -15°C. The refrigeration unit operates at a suction pressure of 140kPa and a discharge pressure of 900kPa. The condenser of the refrigeration unit is cooled by a water cooled h..

Are global warming and the greenhouse effect the same : What is the greenhouse effect, and how does it work and Are global warming and the greenhouse effect the same - what are the main greenhouse gases, and what are the natural and anthropogenic sources of these gasses?

Determine the composition of the mixture at equilibrium : A mixture of 30% CO2, 60% CO and 10% H2 by volume is placed in a container and maintained at 4680 R and 1 atm. Determine the composition of the mixture at equilibrium.

What is the mass flow rate of the cooling water required : Steam enters the condenser (heat exchanger) of a steam power plant at 20kPa and a quality of 95% with a mass flow rate of 20,000kg/h. A nearby river is used as a source of cooling water where the water will circulate through the tubes within the cond..

What is the quality of the steam in its initial state : A saturated mixture of water at 1,100kPa is throttled (in a throttling process) to a temperature of 105 degrees C and a pressure of 100kPa. What is the quality of the steam in its initial state?

Signboard truss is designed to support a horizontal wind : The signboard truss is designed to support a horizontal wind load of 640 lb. If the resultant of this load passes though point C, calculate the forces in members BG and BF. The forces are positive if in tension, negative if in compression.

What is the fluid viscosity : You are given a liquid and are asked to find its viscosity. Its density is known to be 0.97 g/cm^3. You place the fluid in an open vessel to which a 20 cm long vertical tube with an inside diamter of 2 mm, is attached to the bottom. When the depth of..

Determine net work developed per cycle-thermal efficiency : 1 kg of a gas in a piston-cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K is -25 kJ/kg. K. Determi..

User Account

All Pages