Energy Audit of Building Systems: An Engineering Approach, Second Edition, 2nd Edition (Hardback) book cover

Energy Audit of Building Systems

An Engineering Approach, Second Edition, 2nd Edition

By Moncef Krarti

CRC Press

454 pages | 144 B/W Illus.

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pub: 2010-11-08
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Description

Buildings account for almost half of total primary energy use and related greenhouse emissions worldwide. Although current energy systems are improving, they still fall disappointingly short of meeting acceptable limits for efficiency.

Well-trained energy auditors are essential to the success of building energy efficiency programs—and Energy Audit of Building Systems: An Engineering Approach, Second Edition updates a bestselling guide to helping them improve their craft. This book outlines a systematic, proven strategy to employ analysis methods to assess the effectiveness of a wide range of technologies and techniques that can save energy and reduce operating costs in residential and commercial buildings.

Useful to auditors, managers, and students of energy systems, material is organized into 17 self-contained chapters, each detailing a specific building subsystem or energy efficiency technology. Rooted in established engineering principles, this volume:

  • Explores state-of-the-art techniques and technologies to reduce energy consumption in buildings
  • Lays out innovative energy efficiency technologies and strategies, as well as more established methods, to estimate energy savings from conservation measures
  • Provides several calculation examples to outline applications of methods

To help readers execute and optimize real building energy audits, the author presents several case studies of existing detailed energy audit reports. These include results from field testing, building energy simulation, and retrofit analysis of existing buildings, with recommendations based on sound economic analysis. Examining various subsystems, such as lighting, heating, and cooling systems, it provides an overview of basic engineering methods used to verify and measure actual energy savings attributed to energy efficiency projects. The author presents simplified calculation methods to evaluate their effectiveness and ultimately improve on them. Ideal either as a professional reference or a text for continuing education courses, this book fortifies readers’ understanding of building energy systems, paving the way for future breakthroughs.

Table of Contents

Introduction to Energy Audit

Types of Energy Audits

General Procedure for a Detailed Energy Audit

Common Energy Conservation Measures

Case Study: Audit of an Office Building

Verification Methods of Energy Savings

Energy Sources and Utility Rate Structures

Energy Resources

Electricity Rates

Natural Gas Rates

Utility Rates for Other Energy Sources

Economic Analysis

Basic Concepts

Inflation Rate

Compounding Factors

Economic Evaluation Methods Among Alternatives

Life-Cycle Cost Analysis Method

General Procedure for an Economic Evaluation

Financing Options

Energy Analysis Tools

Ratio-Based Methods

Inverse Modeling Methods

Forward Modeling Methods

Electrical Systems

Review of Basics

Electrical Motors

Lighting Systems

Electrical Appliances

Electrical Distribution Systems

Power Quality

Building Envelope

Basic Heat Transfer Concepts

Simplified Calculation Tools for Building Envelope Audit

Selected Retrofits for Building Envelope

Secondary HVAC Systems Retrofit

Types of Secondary HVAC Systems

Ventilation Systems

Ventilation of Parking Garages

Indoor Temperature Controls

Upgrade of Fan Systems

Common HVAC Retrofit Measures

Central Heating Systems

Basic Combustion Principles

Boiler Efficiency Improvements

Existing Boiler Tune-Up

Cooling Equipment

Basic Cooling Principles

Types of Cooling Systems

Water Distribution Systems

District Cooling Systems

Multichiller Systems

Energy Conservation Measures

Energy Management Control Systems

Basic Control Principles

Energy Management Systems

Control Applications

Compressed Air Systems

Review of Basic Concepts

Common Energy Conservation Measures for Compressed Air Systems

Thermal Energy Storage Systems

Types of TES Systems

Principles of TES Systems

Charging/Discharging of TES systems

TES Control Strategies

Measures for Reducing Operating Costs

Cogeneration Systems

History of Cogeneration

Types of Cogeneration Systems

Evaluation of Cogeneration Systems

Case Study

Heat Recovery Systems

Types of Heat Recovery Systems

Performance of Heat Recovery Systems

Simplified Analysis Methods

Water Management

Indoor Water Management

Outdoor Water Management

Swimming Pools

Methods for Estimating Energy Savings

General Procedure

Energy Savings Estimation Models

Applications

Uncertainty Analysis

Case Studies

Reporting Guidelines

Reporting a Walk-Through Audit

Case Study 1: Walk-Through Audit of a Residence

Case Study 2: Standard Audit of a Residence

Case Study 3: Audit of a Museum

References

Appendices

About the Author

Dr. Moncef Krarti, Ph.D, PE, LEED®AP, is professor, associate chair, and director of the Building Systems Program—Civil, Environmental, and Architectural Engineering Department at the University of Colorado. He is a renowned innovator in energy efficiency and renewable energy technologies. He is an experienced energy auditor, instructor, and project director, having conducted more than 1,000 energy audits of various residential, commercial, institutional, and industrial facilities. A valued international consultant in energy efficiency, Dr. Krarti has extensive experience in promoting building energy efficiency technologies and policies. He has also been instrumental in creating energy efficiency centers and developing building energy codes and energy efficiency training programs around the globe.

About the Series

Mechanical and Aerospace Engineering Series

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Subject Categories

BISAC Subject Codes/Headings:
SCI065000
SCIENCE / Mechanics / Dynamics / Thermodynamics
TEC005050
TECHNOLOGY & ENGINEERING / Construction / Heating, Ventilation & Air Conditioning
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General