analysis of the influences of solar radiation and façade glazing ...

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1.3 Research goals and hypothesis 40 1.3 Research goals and hypothesis The current thesis framework and scope was formulated based on knowledge and experiences gathered during the design time of high-end apartment buildings in Hannover. The project, called VASATI 2.0, has been realized by Wohnungsgenossenschaft Gartenheim eG, architecture office Peter Lassen, engineering office Udo Sprengel and Wienerberger in cooperation with the Technical University of Bialystok. 1.3.1 Scientific goals The main objectives pursued in this thesis are the following: � determination of an optimal value of a window-to-wall ratio that leads to minimum energy consumption for space heating, � testing the influence of thermal and optical properties of glazing systems on the thermal performance of buildings, � analyzing how a type of glazing systems may influence the thermal comfort in the considered houses, � optimization of a solar domestic hot water system, � experimental determination of the thermal performance of a POROTON-T9-30,0 brick in order to calibrate an energy-simulation tool for buildings. 1.3.2 Hyphothesis Based on literature review and preliminary analysis, the following hypothesis is proposed: Through the analysis of the influence of the solar radiation in the energy balance of a multifamily building it is possible to determine an optimal value of window-to-wall ratio that leads to a minimum of energy consumption for space heating.
2.1 Building energy simulation software 41 2 Research methods In order to prove the hypothesis, three basic research methods were chosen. Firstly, detailed literature searches were conducted to identify current published knowledge concerning the impact of solar radiation on thermal behavior in buildings. Computer simulation techniques, which grow in popularity each year, were selected as the next step in our investigation. Additionally, experimental investigations were carried out for the determination of the thermal performance of the considered external wall and then for calibrating building simulation software. 2.1 Building energy simulation software The main goal of this project was to determine the thermal performance of the dwelling house. The most popular and advanced simulation software that can be used for this type of analysis for residential and office buildings are the following: BLAST, BSim, DeST, DOE- 2.1E, ECOTECT, Ener-Win, Energy Express, Energy-10, EnergyPlus, eQUEST, ESP-r, IDA ICE, IES/VES, HAP, HEED, PowerDomus, SUNREL, Tas, TRACE and TRNSYS. The EnergyPlus V3-0, as a verified and fully-validated tool, was chosen from a wide variety of simulation programs. This software contains structured, modular code models combining heat and mass transfer, simulating multizone airflow and operating conditions of heating, cooling and ventilation systems in all kinds of buildings for long periods. The modularity structure of EnergyPlus and links to other programming elements are shown in Fig. 2.1.
Page 1 and 2: ANALYSIS OF THE INFLUENCES OF SOLAR
Page 3 and 4: than the inner air temperature. It
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Page 9 and 10: 1.1 Introduction 9 Another problem,
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3.5 Optimization of a solar domesti
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4.1 Summary 99 4 Summary and conclu
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4.2 Comments and conclusions 101 So
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4.3 Future research 103 of the annu
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References 105 Beausoleil-Morrison,
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References 107 Hendron, R., et al.
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References 109 Rees, S. and Haves,
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References 111 Yohanis, Y.G., et al
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Appendix 1 113 Fig. A1.1 VASATI 2.0
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Appendix 2 123 !-Generator IDFEdito
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Appendix 2 125 0.035, !- Conductivi
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Appendix 2 127 , !- Zone Inside Con
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Appendix 2 129 Discrete; !- Numeric
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Appendix 2 131 Fraction, !- Schedul
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Appendix 2 133 Air Conditioner:Wind
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Appendix 2 135 , !- Sensible Heat F
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Appendix 2 137 281, !- Lighting Lev
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Appendix 2 139 OG2 InfilTRATION, !-
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Appendix 2 141 OG3, !- Zone Name 16
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Appendix 2 143 0.004, !- Zone Heati
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Appendix 2 145 Zone15WindACAirInlet
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Appendix 2 147 0, !- Maximum Flow R
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Appendix 2 149 Zone16WindACOAMixer,
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Appendix 2 151 Zone 9 Outlet Node;
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Appendix 2 153 Stand Alone ERV 16,
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Appendix 2 155 ZoneHVAC:WindowAirCo
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Appendix 2 157 ZoneHVAC:Baseboard:C
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Appendix 2 159 Zone Control Type Sc
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Appendix 2 161 WindACPLFFPLR, !- Pa
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Appendix 2 163 Stand Alone ERV Supp
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Appendix 2 165 0.03001, !- Maximum
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Appendix 2 167 0.81, !- Sensible Ef
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Appendix 2 169 !- == ALL OBJECTS IN
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