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

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.