- •5.3 Test Instructions
- •Table of Allowable Rapid Fluctuations of Certain Key Measurements.
- •5.5.6 Data Verification
- •5.6 Results
- •5.7 Analysis
- •5.7.1 Method of Trending Results
- •5.8 Report
- •HP / IP Turbine Efficiency Test
- •Typical Control Room Data Sheet
- •Point ID
- •Condenser
- •Annexure - I
- •CONDENSER DESIGN DATA
- •Annexure - II
- •TEST READINGS
- •Annexure - III
- •TYPICAL CONTROL ROOM READINGS
- •UNITS
- •kcal/hr
- •3.0 Working And Test Set Up
- •TEST ENGINEER (TE):-----------------------------------------
- •ENGINEERING REVIEW
- •PERSONNEL REQUIRED
- •TEST CREW ORIENTATION
- •REFERENCE DRAWINGS
- •LEAK DETECTOR OPERATION
- •TEST LOG
- •ACCESSIBILITY
- •CONTROL ROOM / UNIT DATA
- •LIST OF INSTRUMENTS & ACCESSORIES REQUIRED FOR AIR-IN-LEAK TEST
- •L. P. Turbine
- •*Total time from leak sensing by instrument to retrieval to zero (0)
- •Unit
- •LOW FEED WATER TEMPERATURE
- •EXCESSIVE MAKEUP
- •HIGH WATER LEVEL
- •EXCESSIVE NUMBER OF TUBES PLUGGED
- •HIGH DRAIN COOLER APPROACH TEMPERATURE (DCA)
- •DRAIN COOLER INLET NOT SUBMERGED
- •IMPROPER SETTING
- •EXCESSIVE TUBE BUNDLE PRESSURE DROP
- •HP Heater Test Data
- •Control Room Readings
- •FAULT TREE
- •LP Heater Test Data
- •Control Room Readings
- •FAULT TREE
- •LOW FEED WATER TEMPERATURE
- •EXCESSIVE MAKEUP
- •WORN VENT
- •HIGH WATER LEVEL
- •TUBE LEAKES
- •HEADER PARTITION LEAKS
- •EXCESSIVE NUMBER OF TUBES PLUGGED
- •HIGH DRAIN COOLER APPROACH TEMPERATURE (DCA)
- •DRAIN COOLER INLET NOT SUBMERGED
- •IMPROPER SETTING
- •EXCESSIVE TUBE BUNDLE PRESSURE DROP
- •EXCESSIVE NUMBER OF TUBES PLUGGED
- •Unit
- •BFP Test Data
- •Typical Control Room Readings
- •Boiler Feed Pump A / B / C
- •Typical DAS Readings
- •Description
- •CONTENTS
- •1.0 Introduction
- •3.1 Process Description
- •4 References
- •4.1 ASME Performance Test Code 4.2 – 1969, Coal Pulverizers
- •5 Prerequisites
- •(A clean air test is performed with the primary air to the mill at full load normal conditions with the mill out of service (normal primary airflow, no fuel flow)).
- •Avg. Velocity
- •6.4 Isokinetic Coal Sampling
- •4.5.2 Unburned in Flyash at Economizer Outlet
- •Summary
- •Dry Gas Loss
- •Gas Temp Leaving AH - Corr. to Design Ambient
- •OBJECTIVE : Determine the amount of Power being consumed by the primary plant equipment.
- •TEST ENGINEER (TE):
- •REFERENCE: ASME PTC 19.6-1955 and TVA Proc. No. TS/PERF/RTST/FOS/16.0
- •BILL OF MATERIALS
- •BILL OF MATERIALS
- •Note: Quantities to be decided as per the requirement
- •2.4 PORTABLE DATA ACQUISITION SYSTEM
- •BILL OF MATERIAL
- •Acquisition
- •EQUIPMENT: Thermocouple wire for flue gas temperature measurement
- •2.9 HIGH VELOCITY THERMOCOUPLE (HVT) PROBE
- •2.11 HIGH VOLUME FLYASH SAMPLER
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Centre For Power Efficiency And Environmental |
Procedure Number |
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NTPC |
Protection, NOIDA |
CENPEEP/EFF/TP/301 |
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TITLE |
Rev. 1/EMS |
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CENPEEP |
Routine Turbine Efficiency Test |
Issue Date: 20/04/2000 |
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Page: 11 |
OF 16 |
5.4.6 Test Instrument Calibration
Instrument calibration for RTDs and pressure transmitters are normally performed by a calibration laboratory. Before beginning a test :
5.4.6.1Ensure all equipment is calibrated and displays a current calibration sticker.
5.4.6.2If field calibration is required, obtain procedure for field calibration from Test Engineer.
5.5Data Collection
Whereas the Acquisition System takes care of most of the required data readings, additional data must be collected by trained technicians. Data required includes:
5.5.1Data Acquisition System Data (Sample copy enclosed)
5.5.2Control Room Data (Sample copy enclosed)
5.5.3Station Service Data
5.5.4Obtain Field Data Sheets from Test Engineer
5.5.5Test Duration and Frequency of Observations
Each test run must be conducted for a minimum of forty minutes for the purpose of data collection. A shorter time period is acceptable provided automated data acquisition is used. The frequency of readings if a manual test is conducted is 5 minute intervals per parameter measured.
5.5.6Data Verification
The Test Engineer, during the course of the test, should compare historical performance curves showing the expected value of the critical test measurements plotted as a of mainstream or feed water flow, as appropriate. These plots will allow the Test Engineer to determine gross error in data being collected.
5.6Results
Turbine efficiency is calculated using enthalpy-drop method if ASME –PTC 6S Report, simplified procedures for Routine Performance Tests of Steam Turbines.
Additionally turbine efficiency calculations may be checked using PEPSE.
5.6.1Calculation of the Turbine Cycle Heat Rate.
5.6.1.1Calculation of turbine cycle heat rate requires determination of the reheat steam flow.
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Centre For Power Efficiency And Environmental |
Procedure Number |
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NTPC |
Protection, NOIDA |
CENPEEP/EFF/TP/301 |
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TITLE |
Rev. 1/EMS |
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CENPEEP |
Routine Turbine Efficiency Test |
Issue Date: 20/04/2000 |
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Page: 12 |
OF 16 |
5.6.1.2Turbine cycle heat rate is defined as:
Q1 (H1- h1) + Q2 (H3 - H2)
Gross Generator Output
Where: Q1 = Main Steam Flow
H1 = Main Steam Enthalpy
h1 = Feedwater Enthalpy
Q2 = Reheat Steam Flow
H3 = Hot Reheat Enthalpy
H2 = Cold Reheat Enthalpy
5.7Analysis
The control and data acquisition computer automatically corrects data obtained to standard operating conditions.
5.7.1Method of Trending Results
The data given below should be plotted following each test run to allow monitoring performance trends:
Main Steam Pressure (turbine end) Corrected First Stage Pressure Corrected HP Turbine Exhaust Pressure
Corrected Hot Reheat Pressure (turbine end) Main Steam Temperature (turbine end)
Hot Reheat Temperature (turbine end) IP Turbine Exhaust Temperature Condenser Pressure
Gross Generator Output
Main Steam or Feedwater Flow Superheater Spray
Reheater Spray
HP Turbine Efficiency
IP Turbine Efficiency
5.7.2For analysis of test data, the fault tree given in Volume-I of this document may be referred.
5.8Report
The results report should include a narrative describing any unusual findings as well as the following :
5.8.1Executive Summary
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Centre For Power Efficiency And Environmental |
Procedure Number |
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NTPC |
Protection, NOIDA |
CENPEEP/EFF/TP/301 |
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TITLE |
Rev. 1/EMS |
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CENPEEP |
Routine Turbine Efficiency Test |
Issue Date: 20/04/2000 |
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Page: 13 |
OF 16 |
5.8.2Objective
5.8.3Scope
5.8.4Background
5.8.5Test Methodology
5.8.6Results
5.8.7Discussion
5.8.8Conclusions
5.8.9Recommendations
5.8.10Acknowledgments
5.8.11References
5.8.12Complete Set of Appendices Appendix A: Analysis and Results Appendix B: Test Data
Appendix C: Test Equipment and Instrumentation Appendix D: Test and Unit Specifications
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Centre For Power Efficiency And Environmental |
Procedure Number |
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NTPC |
Protection, NOIDA |
CENPEEP/EFF/TP/301 |
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TITLE |
Rev. 1/EMS |
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CENPEEP |
Routine Turbine Efficiency Test |
Issue Date: 20/04/2000 |
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Page: 14 |
OF 16 |
Typical HP / IP Turbine Efficiency Test Pre – Test Check Sheet
Station : ________________ |
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Unit No:_______ |
Date: |
____/____/____ |
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Checks Made By:____________________ |
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Description |
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Status |
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Initials |
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Control Valve Position “A” & “B” |
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% |
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Auxiliary Steam Feed |
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Isolated |
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Both NRVs to No ----- HP FWH: |
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Open |
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Both NRVs to No ----- HP FWH: |
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Open |
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Both NRVs to No ----- HP FWH: |
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Open |
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Both NRVs to Deaerator: |
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Open |
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Both NRVs to No ----- LPH |
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Open |
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Gland Steam Pressure Controller: |
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Auto and set to ---- kg/cm2 |
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HP Bypass Valves “A” & “B” |
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Closed |
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LP Bypass Valves “A” & “B” |
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Closed |
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Main Steam Line Drains (total) |
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Closed |
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Hot Reheat Drains (----No. total) |
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Closed |
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Cold Reheat Drains (---- No. total) |
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Closed |
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HP Steam Chest Warming (---- No. total) |
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Closed |
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HPH Drain Cooling Zone Steam Vent |
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Closed |
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HPH Drip to Condenser |
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Closed |
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HPH --- Extr. Drain to condenser (----No. total) |
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Closed |
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HPH --- Extr. Drain to condenser (---- No. total) |
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Closed |
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DA High Load Extr. Drain to Condenser (---- No. total) |
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Closed |
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DA Low Load Extr. Drain to Condenser (----- No. total) |
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Closed |
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LPH --- Extr. Drain to Condenser (----No. total) |
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Closed |
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Trap Bypasses Closed |
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Closed |
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Portable DAS Details |
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Location |
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Elevation |
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ID |
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Node# |
Channels |
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Notes / Special Conditions: