COMPREHENSIVE ENERGY AUDIT SCOPE

 

Academy undertakes electrical and thermal energy audits besides harmonic and process audits. The preliminary data and information provided by clients provide a broad view of the energy system to enable us to work out and submit an offer for the scope of work for comprehensive energy audit. The main purpose of the audit is to identify energy saving opportunities in client’s facility to achieve benefits of significant cost reduction.

 

SCOPE OF ENERGY AUDIT

 

The scope of work generally covers the following facilities:

  1. Electrical Audits

  2. Harmonic Study

  3. Electric Motors & Drive

  4. Electrical Systems

  5. DG or Co-generation

  6. Utilities

  7. Process

  8. Lighting

  9. Thermal Audit

  10. Pump & Water Audit

A. Electrical Audits.

 

The Electric Audits Consists Of :

  1. Explore heat exchanger mechanism (Pinch Technology).

  2. Study of Tariff Structure Data to exploit the tariff condition for reduction in bill.

  3. Transferring from one Tariff Structure to Another

  4. Study the pattern of load and electrical parameters like voltage, current, pf, frequency, etc. at various points (Main, PCC, DB Load, etc.) to identify the losses in the system.

  5. Study meters and monitoring system and suggest improvements.

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B. Harmonic Study

 

To study power quality by recording it using state of the art FLUKE 434 instrument having very high sampling rate (over 200000 samples / cycle) and harmonics measurement up to 51st level. Analyzing the gathered data and proposing scheme for reducing harmonic distortion and power saving. Under Harmonic Audit, we :

 

1) Analyze the data for :-

  1. Identifying sources for Harmonics.

  2. Order of Harmonics.

  3. Criticality of Harmonics.

2) Suggest Schemes for :-

  1. Nuisance reduction due to harmonics

  2. Power Saving

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C. Electric Motor and Drives

 

It is implementable. Study covers detailed study of A and B category electrical motors by capturing their operating parameters such as KW, KVA, Voltage, Current, Frequency, etc. over a period of time.

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D. Electrical Systems

 

Study Analyze and suggest :

  1. Most suitable tariff structure.

  2. Optimum Transformer Loading.

  3. Reducing Transmission Losses.

  4. Improved energy metering and monitoring systems.

  5. PF improvements.

  6. Optimum network Losses.

  7. Optimum Capacitor position and capacity.

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D. CPP or DG Set

  1. Review of performance including major auxiliaries and suggestions for optimization.

  2. Possibility of waste heat use to be explored.

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E. UTILITIES

 

1) Pumping Systems and Blowers

  1. Determination of operating efficiency by collection/measurement of flow, head and power deploying suitable measuring instruments.

  2. Study of system as a whole, including flow control method, redundant circulation, excessive pressure drops etc.

  3. Identification of saving potential through operational improvements, retrofits/replacement of equipments and installation of energy saving devices.

2) Compressed Air System

  1. Assessment of free air delivery (output) of compressor.

  2. Estimation of specific energy consumption (Kw/cfm).

  3. Quantification of compressed air leakages by actual leak detection of compressed air distribution network.

  4. Study of distribution network for pressure drops.

  5. Loading pattern and capacity control mechanism.

  6. End-use application study to optimize operating pressure and eliminate poor application of compressed air.

3) Cooling Towers

  1. Performance evaluation of major cooling towers by measurement of cooling water flow, inlet/outlet temperatures, wet bulb/dry bulb temperature, fan power etc.

  2. Exploring suitable measures to improve approach and reduce power consumption.

4) Air-Conditioning System

  1. The industrial facilities generally have several air conditioning systems. The scope of study would include:

  2. Estimation of actual TR generation based on measured parameters

  3. Measurement of power consumption and estimation of specific power i.e. kW/TR.

  4. Study of auxiliary components for energy efficiency.

  5. Monitoring of operating parameters vis-à-vis desirable parameters in user locations.

  6. User area analysis to arrive at energy conservation measures.

  7. Application potential for various energy saving retrofits.

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H. Process and other Energy consuming Equipments

  1. System study as a whole is carried out to identify the energy saving potential.

  2. Specific power consumption of major processes to be determined.

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F. Lighting

 

Detailed audit in lighting system normally results in considerable savings. I luminance readings with a lux meter would act as a basis for comparative purpose. Application of following retrofits is evaluated.

  1. Measurement of area wise lux.

  2. Measurement of electrical parameters such as V, Amp, PF, KW in electrical network of lighting.

  3. Study the type of luminaries and chokes used.

  4. Determination of efficacy ratio of installed lighting.

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G. Thermal Audit

  1. Analyzing the Heat Exchanger Network and exploring Energy Saving through Pinch Technology.

  2. Explore other alternative cheaper energy sources like non-conventional, solar, biogas, solid fuel gasification, etc.

  3. Evaluation of combustion efficiency for furnaces/boilers/Thermic fluid heating systems by flue gas analysis.

  4. Insulation study by I.R. Thermography deploying infra-red thermometer.

  5. Study of steam distribution network and condensate recovery systems for possible improvements.

  6. Identification of areas for possible Waste Heat Recovery.

Thermographic Studies

  1. Using Sophisticated Reytek Ti30 (Fluke Ti30) [USA] Thermographic camera and software.

  2. Identify potential danger in electric HT wires, panel contactors using remote Thermography technology.

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I. Pump & Water Audit

  1. Water Flow Measurement in Conduits, Pipes from 2 inches to 5 meters diameter using state of the art Transit Time Delay technology and Sensitive Digital Minipower Controller Instrument DCT7088 [USA].

  2. Study, analyze and optimize water flow in heat exchangers, cooling towers and processes.

  3. Explore possibilities of zero water discharge schemes.

  4. Water balance, conservation, rain water harvesting, water recycling and optimization of the water usage, waste reduction.

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