Although solar thermal systems are technologically mature and cost effective, they have not yet been sufficiently used in building design to play an adequate role in the reduction of fossil fuel consumption. One main hindrance to adoption is the generally low architectural design quality of the building integration of these thermal systems.
As confirmed by the example of photovoltaics, improvement of the architectural quality of building integrated systems can increase the use of a solar technology even more than price reductions or technical advances. Solar thermal collectors have to be mounted very close to the point of consumption – i.e., on the building itself – which stresses the urgency of the architectural integration issue.
Starting from a definition of architectural integration quality and related criteria, this book is intended to help both architects and manufacturers improve their design work. Architects are given recommendations to optimize integration quality and make the best out of the generally limited flexibility and low formal quality of presently available collectors. Manufacturers, on their side, are offered a set of guidelines for the development of new multifunctional and flexible products conceived from the outset for building integration, thus improving the market offer.
Preface 1. Introduction 1.1 Solar Thermal in Building 1.2 Solar Thermal Technologies 1.3 Energy Production, Solar Fraction and System Sizing Issues 1.4 The Interest of Facade Applications 2. Architectural Integration Quality 2.1 Functional Aspects: "UTILITAS" 2.2 Constructive Aspects: "FIRMITAS" 2.3 Formal Aspects: "VENUSTAS" 3. Architectural Integration Requirements 3.1 Field(s) Positioning and Dimensioning 3.2 Collector Material and Surface Texture; Absorber Colour 3.3 Shape and Size of the Modules 3.4 Type of Jointing 3.5 Examples of Good Integration 4. "Integrability" of Existing Products 4.1 Limits of Standard Products 4.2 Improved Market Products 5. Development Methodology for Novel Solar Thermal Systems 5.1 Collector as Part of Multifunctional Envelope Systems 5.2 Building Integration Requirements: "UTILITAS", "FIRMITAS", "VENUSTAS" 5.3 Market Trends /Users Preferences 5.4 Production Feasibility and Eco-impact 6. Developed Systems 6.1. Unglazed Facade System - SOLABS 6.2 Coloured Glazing for Active Facades 6.3 Considerations 7. Postface 7.1 Introduction 7.2 Significant Formal Characteristics of Collectors 7.3 Energy Transport and Storage 7.4 Operating Constraints 7.5 Conclusions