Monday, May 19, 2014

Engr. Aneel Kumar

TYPE OF ENERGY AUDIT

The type of Energy Audit to be performed depends on:
  • Function and type of industry
  • Depth to which final audit is needed, and
  • Potential and magnitude of cost reduction desired
Thus Energy Audit can be classified into the following two types.

Preliminary Audit & Detailed Audit

1) PRELIMINARY ENERGY AUDIT METHODOLOGY

Preliminary energy audit is a relatively quick exercise to:

• Establish energy consumption in the organization
• Estimate the scope for saving
• Identify the most likely (and the easiest areas for attention
• Identify immediate (especially no-/low-cost) improvements/ savings
• Set a 'reference point'
• Identify areas for more detailed study/measurement
• Preliminary energy audit uses existing, or easily obtained data

2) DETAILED ENERGY AUDIT METHODOLOGY

A comprehensive audit provides a detailed energy project implementation plan for a facility, since it evaluates all major energy using systems.

This type of audit offers the most accurate estimate of energy savings and cost. It considers the interactive effects of all projects, accounts for the energy use of all major equipment, and includes detailed energy cost saving calculations and project cost.

In a comprehensive audit, one of the key elements is the energy balance. This is based on an inventory of energy using systems, assumptions of current operating conditions and calculations of energy use. This estimated use is then compared to utility bill charges.

Detailed energy auditing is carried out in three phases: Phase I, II and III.
  1. Phase I - Pre Audit Phase
  2. Phase II - Audit Phase
  3. Phase III - Post Audit Phase

Engr. Aneel Kumar -

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