Statistical Analysis of Energy Audit Reports Output 1.6 Survey of Thermal Power Plant Energy Audit Report

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Statistical Analysis of Energy Audit
ReportsOutput 1.6Survey of Thermal Power Plant
Energy Audit Report
INDO GERMAN ENERGY PROGRAMME
ATAR SINGH Dy. Director NPTI
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• The following contents were considered for
  statistical analysis of the energy audit report
• Energy audit draft notification
• Energy audit reports Recent energy audit reports
  were collected from the power plants with the
  help from CEA. The plants who provided the
  reports are given in the following table
• The scope of energy audit reports submitted also
  vary from plant to plant

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• For the analysis of the reports the following
  criteria was used
• Segregation of report as per the energy audit
  guide lines
• Equipment segregation list the equipment /
  sections segregated (refer the energy audit
  analysis sheet)
• Methodology Initially the reports were seen for
  the equipment and its sub sections coverage and
  subsections.

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• For systematic analysis of the report, the
  contents were sub grouped in the following
  sections
• Report title and cover sheet
• Ref Code
• Auditor code
• Report title
• Client Name
• Location plant
• Date of report
• Auditor Name
• Table of contents
• Coverage
• Executive summary (ES)
• Company profile -ES
• Objective /goals ES
• Brief Summary -ES
• Summary table ES
• Classification ES

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• Description and energy consumption pattern
• Introduction - Plant details
• Audit team
• Energy consumption cost pattern
• Heat rates, efficiency
• Production/Generation pattern
• Process details
• Equipment Coverage
• Boilers
• Turbines
• Condensers
• Cooling water cooling tower
• Cooling water pumps
• BFW pumps
• CEP pumps
• Other pumps
• Compressors
• Fans

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• Auxiliary power consumption
• Total consumption details
• Break up of individual equipment
• Comments on auxiliary power consumption
• General
• Energy management system
• Policy
• Monitoring system
• Bench marking
• Training
• Strength and weakness of auditors
• Energy savings
• Description/back ground
• Estimation of energy savings
• Cost benefit analysis
• Technical risks
• Action plan/ implementation plan
• M V protocol

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In some places no audit dates
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Executive summary provide basic content of
report. Many reports require Strengthening on
this account.
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Energy Generation and energy consumption pattern
not mentioned properly .Also more than 60 report
do not give plant process details adequately.
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Motors, Transformers, Insulation and air
conditioning section are not properly dealt with.
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• Boilers
• Major components require the coverage of the
  boiler sections are -
• 1) Description 2) Boiler Specification 3)
  Economizer Specification
• 4) Air preheater Specifications 5) Combustion
  control Excess air
• 5) HP LP Heater specifications 6) Coal
  Parameters design
• 7) Coal Mill details and performance. 8) Heat
  balance/PG Test
• 9) Feed water design 10) Soot blower
  specifications
• 11) Operation of boiler and others 12) Steam
  parameters
• 13) Fuel Side analysis 14) Efficiency Evaluation
• 15) Energy balance 16) APH performance 17)
  Insulation
• 18) Water side analysis and treatment 19)
  Reheaters including spray

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Specifications need to be more elaborate.
Analysis should have energy balance, soot blower
operation , deareator, Water side analysis.
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Specification part is inadequate. Also heat
balance or PG test or design details need to be
more elaborate.
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The essential components required for audit are
LMTD, thermal load calculation, condenser vacuum
are not given adequate coverage.
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Thank you..