code1
Civil/Environmental
- Apr 14, 2007
- 66
This topic came up as a point of discussion among the engineers in my company.
We are looking at suitable parameters for the steam turbine exhaust pressure vs. air cooled condenser design ambient temperature operating in a desert environment. Estimated steam flow is ~200ton/hr, 400 deg. C and 41 barA, and electricity generated ~36-40MW depending on the exhaust pressure.
I Googled and found: It provided good case studies.
Table 4.1 (Page 4-8) presents the site conditions; Table 5-9 (pg 5-31) design parameters; Table 5-10 (pg 5-33) Operating Hours above design turbine back pressure.
My question: Without going into the detailed economics (as do not have the sale price of electricity and equipment costs right now) how can I use Table 5-9 and Table 5-10 and select a reasonable turbine exhaust pressure and achieve an optimal ACC size without always having a high back pressure and causing high back pressure alarms and/or trips?
What problems can I expect if the turbine trips too often due to inadequate performance of the ACC?
We are looking at suitable parameters for the steam turbine exhaust pressure vs. air cooled condenser design ambient temperature operating in a desert environment. Estimated steam flow is ~200ton/hr, 400 deg. C and 41 barA, and electricity generated ~36-40MW depending on the exhaust pressure.
I Googled and found: It provided good case studies.
Table 4.1 (Page 4-8) presents the site conditions; Table 5-9 (pg 5-31) design parameters; Table 5-10 (pg 5-33) Operating Hours above design turbine back pressure.
My question: Without going into the detailed economics (as do not have the sale price of electricity and equipment costs right now) how can I use Table 5-9 and Table 5-10 and select a reasonable turbine exhaust pressure and achieve an optimal ACC size without always having a high back pressure and causing high back pressure alarms and/or trips?
What problems can I expect if the turbine trips too often due to inadequate performance of the ACC?