Supposedly you are a cadet engineer in a certain steam power plant that employ a reheat-regenerative ideal Rankine cycle. You are told that it will utilized one open feed heater (OFH). The condition are as follows: Steam is supplied with a condition of 2175.57 psia and 1112 °F. Also, it was measured that condenser pressure is 10 kPa. It was also observed that there are some steam is extracted from the turbine at 40 bar for closed feed water heater while the unextracted steam is reduced at 4000 kPa to 600°C. You are also reminded that the extracted steam is totally liquified in this closed feed water heater and then is pumped to 150 bar before joining with the feed water heater. Note that steam for the open feed water heater is bled from L.P. turbine at 5 bar. Determine : (i) Determine the amount of steam fraction that was extracted from the turbines (at each bled heater) (ii) What is the thermal efficiency of the system. (ii) Provide the process diagram for this problem.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The Problem:
Supposedly you are a cadet engineer in a certain steam power plant that employ a reheat-regenerative
ideal Rankine cycle. You are told that it will utilized one open feed heater (OFH).
The condition are as follows:
Steam is supplied with a condition of 2175.57 psia and 1112 °F.
Also, it was measured that condenser pressure is 10 kPa. It was also observed that there are some steam
is extracted from the turbine at 40 bar for closed feed water heater while the unextracted steam is reduced
at 4000 kPa to 600°C. You are also reminded that the extracted steam is totally liquified in this closed feed
water heater and then is pumped to 150 bar before joining with the feed water heater.
Note that steam for the open feed water heater is bled from L.P. turbine at 5 bar. Determine :
(i) Determine the amount of steam fraction that was extracted from the turbines (at each bled heater)
(ii) What is the thermal efficiency of the system.
(ii) Provide the process diagram for this problem.
Transcribed Image Text:The Problem: Supposedly you are a cadet engineer in a certain steam power plant that employ a reheat-regenerative ideal Rankine cycle. You are told that it will utilized one open feed heater (OFH). The condition are as follows: Steam is supplied with a condition of 2175.57 psia and 1112 °F. Also, it was measured that condenser pressure is 10 kPa. It was also observed that there are some steam is extracted from the turbine at 40 bar for closed feed water heater while the unextracted steam is reduced at 4000 kPa to 600°C. You are also reminded that the extracted steam is totally liquified in this closed feed water heater and then is pumped to 150 bar before joining with the feed water heater. Note that steam for the open feed water heater is bled from L.P. turbine at 5 bar. Determine : (i) Determine the amount of steam fraction that was extracted from the turbines (at each bled heater) (ii) What is the thermal efficiency of the system. (ii) Provide the process diagram for this problem.
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