1st Edition
Weatherization and Energy Efficiency Improvement for Existing Homes An Engineering Approach
Providing a proven set of energy efficiency measures and opportunities for saving energy and reducing operating costs for existing homes, this volume presents general tools and procedures for performing home weatherization such as insulation improvements as well as methods to reduce air leakage. The author describes several techniques and technologies that can reduce energy use or operating costs, including methods to retrofit existing homes to be net-zero energy buildings. Each chapter contains simplified calculation methods used to evaluate the effectiveness of various efficiency measures. The final chapter offers a series of case studies including examples of weatherized homes.
OVERVIEW OF ENERGY AUDIT PROCEDURES
General Procedures
Codes and Standards for Homes
Types of Energy Audits
ECONOMIC ANALYSIS METHODS
Simple Payback Analysis
Life-Cycle Cost Analysis
Utility Rate Structures
ENERGY ANALYSIS OF HOMES
Degree-Days Methods
Utility Data Analysis
Whole-Building Hourly Simulation Programs
ENERGY SCREENING OF EXISTING HOMES
Overview of Energy Performance for US Existing
Homes
Screening Tools and Applications
BUILDING ENVELOPE RETROFIT
Insulation Improvements for
Walls
Ceiling and Roofs
Foundations
Air Leakage Characteristics
Blower Door Testing and Analysis
ELECTRICAL SYSTEMS RETROFIT
Energy Efficient Lighting and Ballasts
Energy Star Appliances
Daylighting Controls
HEATING AND COOLING SYSTEMS RETORFIT
Furnaces
Heat Pumps
Air Conditioners
Passive Heating and Cooling Systems for Homes
Air Distribution Systems Anatomy
Maintenance and Controls
DOMESTIC HOT WATER SYSTEMS RETROFIT
Water Management
Conventional versus Solar Water Heating Systems
ZERO-ENERGY RETROFIT
Overview of Zero-Energy Homes
Design of PV systems
Analysis tools for Zero-Energy Home Retrofit
ENERGY SAVINGS VERIFICATION
Tools and Techniques for Measurement
Verification
Diagnostics
ENERGY AUDIT REPORTING
Types of Report
General Outline of a Detailed Energy Audit Report
Example of an Energy Audit Report
CASE STUDIES
Weatherization Case Study and Verification Analysis
Detailed Energy Audit of an Existing Home
Zero-Energy Retrofit of an Existing Home
APPENDICES
Biography
Moncef Krarti is the Professor and Coordinator for the Building Systems Program in the Civil, Environmental, and Architectural Engineering Department at the University of Colorado. He has vast experience in designing, testing, and assessing innovative energy efficiency and renewable energy technologies applied to buildings. He has directed several projects in designing energy efficient buildings including innovative mechanical and electrical energy systems. Prof. Krarti has published over 250 technical journals and handbook chapters in various fields related to energy efficiency and energy management of the built environment. Moreover, he has published several books on building energy efficient systems. He taught courses related to building electrical systems for over 20 years in the US and abroad.
He is currently the director of an industrial university collaborative research center on building energy smart technologies. As part of his activities as a professor at the University of Colorado, he has been managing the research activities of an energy management center at the University of Colorado with an emphasis of testing and evaluating the performance of mechanical and electrical systems for residential and commercial buildings. He has also helped the development of similar energy efficiency centers in other countries including Brazil, Mexico, and Tunisia. Dr. Krarti has an extensive experience in promoting building energy efficiency technologies and policies overseas, including the development of building energy codes and energy efficiency training programs in several countries, including Tunisia, Sri Lanka, Egypt and collaborative research with over ten countries in Europe, Africa, Asia, and South America.