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This guide provides homeowners with information needed to plan for the purchase of an earth energy heat pump system in a new or existing home. Section 1 is an introduction to earth energy systems, how they work, the different types of systems, their benefits, and how much energy they need to work. Section 2 is directed at new home buyers, and discusses how house design affects an earth energy system. It also recommends system designs that work best for particular house types and compares typical operating costs to alternative heating & cooling systems. Section 3 is for those wanting to install an earth energy system in an existing house, and covers various ways to upgrade a heating & cooling system, compares operating costs, and lists steps in servicing the system. Section 4 is for all readers and provides guidance on selecting a contractor & what needs to be covered in a basic contract. It also covers maintenance & service as well as basic troubleshooting. The final section lists information sources. Appendices include a glossary and an installation checklist.
An earth energy system (EES) is a type of heat pump system that uses the ground or groundwater as a source of energy. This guide provides information needed to understand, plan, oversee, design, build, and manage an EES for heating & cooling applications in commercial & institutional buildings. Chapter 1 provides an introduction to EESs, what they are, where they make the most sense, how they work, and their economics as compared to other heating, ventilating, & air conditioning systems. Chapter 2 describes the different configurations or types of EESs and factors to be considered when selecting an EES. It also introduces the energy efficiency descriptors for heat pumps used in EESs and discusses the importance of energy efficiency in other aspects of buildings. Chapter 3 provides a brief overview of an EES design. Chapter 4 examines other important matters unique to EESs, such as environmental & legal considerations and planning, installation, & maintenance issues. Chapter 5 contains a detailed examination of topics pertaining to heat pump performance & efficiency. Chapter 6 discusses the evaluation & calculation of building loads & energy use. Chapter 7 explains the requirements for sizing heat pumps and ground heat exchangers, and includes sample calculations. Chapter 8 outlines factors to consider in the analysis of an EES investment and includes an economic & financial calculation example. The final chapter addresses practical issues that should be considered in EES design & installation. It also provides a sample performance specification and a list of important information to obtain from suppliers & contractors. Appendices include EES case studies and a glossary.
Design and Performance Optimization of Renewable Energy Systems provides an integrated discussion of issues relating to renewable energy performance design and optimization using advanced thermodynamic analysis with modern methods to configure major renewable energy plant configurations (solar, geothermal, wind, hydro, PV). Vectors of performance enhancement reviewed include thermodynamics, heat transfer, exergoeconomics and neural network techniques. Source technologies studied range across geothermal power plants, hydroelectric power, solar power towers, linear concentrating PV, parabolic trough solar collectors, grid-tied hybrid solar PV/Fuel cell for freshwater production, and wind energy systems. Finally, nanofluids in renewable energy systems are reviewed and discussed from the heat transfer enhancement perspective. Reviews the fundamentals of thermodynamics and heat transfer concepts to help engineers overcome design challenges for performance maximization Explores advanced design and operating principles for solar, geothermal and wind energy systems with diagrams and examples Combines detailed mathematical modeling with relevant computational analyses, focusing on novel techniques such as artificial neural network analyses Demonstrates how to maximize overall system performance by achieving synergies in equipment and component efficiency
This guide is about one of the most recent developments in residential space heating and cooling technology --earth energy systems (ground source heat pumps). The guide covers all aspects of earth energy systems-- from internal operation and installation to field tested performance --in an understandable, non-technical manner. The guide has been written primarily for a residential building audience, in particular those involved in choosing heating systems. It examines certain perceptions and misconceptions about earth energy systems; covers the fundamental concepts of operation, design and application; presents a comparison between earth energy systems and four other conventional heating systems; and provides illustrated examples of earth energy systems in operation.