Increasing awareness of energy use-and waste-places additional onus on building managers, operators, and engineers, already bearing considerable responsibility for operating cost containment. Fortunately, research, technological developments, and practical experience provide a number of procedures and techniques that can make a significant impact on a building's energy use and expense.Energy Audit of Building Systems offers a systematic, engineering approach to a wide range of measures and opportunities for saving energy and reducing operating costs in both residential and commercial buildings. The author first provides general tools and procedures for performing building energy audits, including economic analysis, utility rate structures, and building energy simulation. His focus then turns to various subsystems, exploring the techniques and technologies that can reduce energy use or operating costs. Each chapter includes simplified calculation methods used to evaluate the effectiveness of various efficiency measures. Other books on energy efficiency and management are either out of date or offer only qualitative descriptions of energy conservation measures. Energy Audit of Building Systems incorporates the latest energy efficiency technologies, precise calculation procedures, and virtual step-by-step guidelines on evaluating, analyzing, and improving upon energy efficiency in buildings.