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

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. 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. CONTENTS
 Abstract
 Introduction
 Various Method For Condenser Cleaning For
Improvement Of Its Performance
 Condenser performance
 Results And Graphs
 Conclusion

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. INTRODUCTION
 About Thermal Power Plant
 About APGENCO
 About KTPS
 Condenser
 Circulating Water System
 Cooling Tower

6.  Plant layout

7. CONDENSATE SYSTEM
 Condenser
 Types of condenser
1) Direct contact

8.  Surface contact

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. 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. 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.  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. 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

15. 3.Latent heat vs cooling water flow rate

16. 4. Vacuum vs cooling water outlet

17. 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.

18.  Sponge balls cleaning method is the best method for
increasing the condenser efficiency.
 vacuum in the condenser effects its performance.

19.  Latent heat vs vacuum