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Performance of condenser and effect of vacuum in 120MW thermal power plant.ppt (1)

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the purpose of present project is to analyze the performance of condenser at 120MW thermal power plant and comparisons made with partial loads 116 MW and 110MW.

by ujjawal sharma

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Performance of condenser and effect of vacuum in 120MW thermal power plant.ppt (1)

  1. 1. PERFORMANCE OF CONDENSER AND EFFECT OF VACUUM IN 120 MW THERMAL POWER PLANT Department of mechanical engineering Gandhiji Institute of science and technology Approved by AICTE, New Delhi , Affiliated to JNTU, KAKINADA Gattu- Bhimavaram (P) , Vatsai(M), Krishna Dist., A.P- 521175
  2. 2. UNDER GUIDE BY : HEAD OF DEPARTMENT: SHAIK MOULALI M.Tech K. PRADEEP KUMAR M.TECH Asst. Professor Asst. Professor PRESENTED BY : UJJAWAL KUMAR SHARMA 13JF1A0344 SAURAV RANJAN 13JF1A0338 CHANDAN KUMAR 13JF1A0307 A. SUDHEER KUMAR 14JF5A0306 A. SURESH KUMAR 14JF1A0307 U. NAGARAJU 14JF1A0304
  3. 3. CONTENTS  Abstract  Introduction  Various Method For Condenser Cleaning For Improvement Of Its Performance  Condenser performance  Results And Graphs  Conclusion
  4. 4. Abstract  The purpose of present project is to analyze the performance of condenser at 120 MW thermal power plant and comparison made with the partial loads of 116 MW and 110 MW. It is used as the guidance for the scheduling maintenance outages on the basis of performance trades.  Here an attempt is made on various factors like vacuum systems, circulating water system, that effect on the actual performance of condenser.  The whole project carried out at 120 MW thermal station in unit no.7 at KTPS, Paloncha ,Kothaguddem.
  5. 5. INTRODUCTION  About Thermal Power Plant  About APGENCO  About KTPS  Condenser  Circulating Water System  Cooling Tower
  6. 6.  Plant layout
  7. 7. CONDENSATE SYSTEM  Condenser  Types of condenser 1) Direct contact
  8. 8.  Surface contact
  9. 9.  Constructional feature  Air leakage in condenser  Location of air leakage  Disadvantages of detecting air leakage in condenser  Circulating water leakages  Effect of cooling water leakage into the condensate  Initial indication of a tube leak  Air extraction system
  10. 10. Various Methods for Condenser Cleaning For Improvement Of Its Performance  Cleaning With Wire Brushes And Rods 1.Nylon Brush Type 2.Steel Brush Type 3.Sponge Ball Type  Bullet cleaning  Chemical cleaning during shutting down  Condenser on load tube cleaning system (OLTC system)
  11. 11. PERFORMANCE CALCULATIONS AT LAOD 116 MW: Main steam flow =348 tons Main steam Temperature = 537 oC Main steam Pressure =132kg/cm2 CW inlet temperature =29 oC CW outlet temperature =39 oC LP turbine exhaust steam temp. = 48 oC Condenser Vacuum =0.91 bar Efficiency of condenser =52.6 % Vacuum Efficiency = 95.56 %
  12. 12.  AT LOAD 110 MW  Main steam flow = 335 tons  Main steam temperature =535 oC  Main steam pressure = 125kg/cm2  CW inlet temperature = 34 oC  CW outlet Temperature = 43 oC  LP turbine Exhaust temperature = 52 oC  Condenser Vacuum =0.88 bar  Efficiency of condenser = 50 %  Vacuum Efficiency = 98.2 %
  13. 13. Results And Graphs  The various parameters in the performance are noted and their relations are plotted : 1.Load vs vacuum 2.cooling water vs vacuum
  14. 14. 3.Latent heat vs cooling water flow rate
  15. 15. 4. Vacuum vs cooling water outlet
  16. 16. CONCLUSION  the parameter like condenser duty, vacuum efficiency, clean lines factor, cooling water flow, latent heat and performance of condenser and effect of vacuum are analyzed.  the efficiency of the condenser is reduced at reduced loads.  The main problem in condenser functioning is fouling and corrosion compared to other parameters like tube leakage and air leakage.
  17. 17.  Sponge balls cleaning method is the best method for increasing the condenser efficiency.  vacuum in the condenser effects its performance.
  18. 18.  Latent heat vs vacuum

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