In a combined cycle of gas turbine, can a steam turbine drive
the same generator driven by the gas turbine? Or it must drives a
separate generator?
Also, is there any gas power station that uses a gas other than
natural gas? Please give an example. Also, is there a gas power
station that uses synthesis gas?
Steam enters an adiabatic turbine at 500C and 4.0MPa and 80m/s.
The steam leaves the turbine as saturated liquid-vapor mixture at
30kPa, quality of 92% and 50m/s. The mass flow rate of steam
through the turbine is 12kg/s.
(10 pts) Determine change in kinetic energy
(10 pts) Determine the rate of work (power) done by the steam in
the turbine, in kW (neglect potential energy change).
(10 pts) Determine the flow area at the entrance to the turbine,
in m2....
A steam turbine operates adiabatically at a power level of 3500
kW. Steam enters the turbine at 2400 kPa and 500oC and
exhausts from the turbine at 20 kPa as saturated vapor. What is the
flow rate of steam run through the turbine, and what is the turbine
efficiency? Draw the process on the P-H diagram.
1. A steam turbine operates adiabatically with a steam rate of
25 kg/s. The steam is supplied at 300 kPA and 400 oC and
discharged at 40 kPA and 100 oC. Use steam tables to
solve this problem.
a. Determine the power output of the turbine.
b. Determine the power output of turbine for reversible
process.
Review the two videos (1) “Steam Power Plant” and (2) Gas
Turbine. For each one, identify at least three examples of the
design for each of the following criteria:
1. Energy performance (e.g. improved efficiency, higher power
output, ...)
2. Economic considerations (reduced cost)
3. Environmental considerations (reduced emissions, etc.).
* Link of video 1 - https://youtu.be/xokHLFE96h8
Click on 1st video (how a thermal power plant works)
* Link of video 2 - https://youtu.be/GF-70yncAVY
Click on industrial gas turbine working...
Steam at 5mpa and 300C enters a turbine in a steady flow manner,
from the turbine the steam expands to 200 kpa with a quality of
90%. FInd the ff:
a. The work done by the steam to the turbine in kj/kg
b. The amount of steam flow rate needed in kg/hr if the turbine
produces 200kW of power
c. The efficiency of the expansion process
The mass flow rate of steam through an ideal Rankine turbine (
with an isentropic turbine and an isentropic pump) is 30lbm/s. The
water and or steam is at a pressure of 1000 psia throughout the
boiler and superheater and exits the superheater at a temperature
of 600 F. The condenser is at a pressure of 2 psia, and the water
exits the condenser as a saturated liquid. Calculate the
following.
(a) the power output of the turbine
(b) the...
Electrical power is to be produced from a steam turbine
connected to a nuclear reactor. Steam is obtained from the ractor
at 540 K and 36 bar, the turbine exit pressure is 1.0 bar, and the
turbine is adiabatic.
a) Compute the maximum work per kilogram of steam that can be
obtained from the turbine.
A clever chemical engineer has suggested that the single-stage
turbine considered here be replaced by a two-stage adiabatic
turbine, and that the steam exiting from...
A single stage steam turbine is supplied with steam at 5 bars,
200 C at the rate of 50kgmin. It exhausts into a condenser at a
pressure of 0.2 bars. The blade speed is 400msec. Nozzles are
inclined at an angle of 20 to the plane of the wheel and outlet
blade angle 30. Neglecting friction losses, the power developed by
the turbine will be?