Page 288 - Mechanical Engineers' Handbook (Volume 4)

Mechanical Engineers’ Handbook: Energy and Power, Volume 4, Third Edition.

Edited by Myer Kutz

Copyright  2006 by John Wiley & Sons, Inc.

CHAPTER 7
ENERGY AUDITING
Carl Blumstein
Universitywide Energy Research Group
University of California
Berkeley, California
Peter Kuhn
Kuhn and Kuhn
Industrial Energy Consultants
Golden Gate Energy Center
Sausalito, California

1 ENERGY MANAGEMENT AND 3.2 Capital-Intensive Energy
THE ENERGY AUDIT 277 Conservation Measures 288
2 PERFORMING AN ENERGY 4 EVALUATING ENERGY
AUDIT—ANALYZING ENERGY CONSERVATION
USE 278 OPPORTUNITIES 293
3 PERFORMING AN ENERGY 5 PRESENTING THE RESULTS
AUDIT—IDENTIFYING OF AN ENERGY AUDIT 293
OPPORTUNITIES FOR SAVING
ENERGY 286 REFERENCES 294
3.1 Low-Cost Conservation 287

1 ENERGY MANAGEMENT AND THE ENERGY AUDIT
Energy auditing is the practice of surveying a facility to identify opportunities for increasing
the efficiency of energy use. A facility may be a residence, a commercial building, an
industrial plant, or other installation where energy is consumed for any purpose. Energy
management is the practice of organizing financial and technical resources and personnel to
increase the efficiency with which energy is used in a facility. Energy management typically
involves the keeping of records on energy consumption and equipment performance, optim-
ization of operating practices, regular adjustment of equipment, and replacement or modifi-
cation of inefficient equipment and systems.
Energy auditing is a part of an energy management program. The auditor, usually some-
one not regularly associated with the facility, reviews operating practices and evaluates en-
ergy using equipment in the facility in order to develop recommendations for improvement.
An energy audit can be, and often is, undertaken when no formal energy management pro-
gram exists. In simple facilities, particularly residences, a formal program is impractical and
informal procedures are sufficient to alter operating practices and make simple improvements
such as the addition of insulation. In more complex facilities, the absence of a formal energy
management program is usually a serious deficiency. In such cases a major recommendation
of the energy audit will be to establish an energy management program.
There can be great variation in the degree of thoroughness with which an audit is
conducted, but the basic procedure is universal. The first step is to collect data with which

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