Study on “Developing Energy Efficient Urban Fabric” in Young Cities Project at Technical University of Berlin, Faculty of Planning, Building and Environment. 2011
SOLARCHVISION STUDIES ON YOUNG CITIES PROJECT IN HASHTGERD NEW TOWN, IRAN
TECHNICAL UNIVERSITY OF BERLIN
FACULTY OF PLANNING, BUILDING AND ENVIRONMENT
DIMENSION ENERGY EFFICIENCY
SUPERVISORS:
PROF. CLAUS STEFFAN, DR. ING. FARSHAD NASROLLAHI
FEBRUARY – MAY 2011
Table of Contents
Introduction into SOLARCHVISION 4
From the Sun to Architect 5
Problem definition & Research Objectives 6
Limits of the research area 8
SOLARCHVISION method 9
Basics of Solar Analysis 10
Orbit of the earth around the sun 10
What is the reason for different seasons on the earth? 12
Movements of the sun around the earth 13
Movements of the sun at different Latitudes 14
The effect of atmosphere on the solar radiation at the surface of the earth 19
Extraterrestrial solar radiation 19
Optical air mass 20
Clear sky radiation 21
Underlying basic concepts in the SoDa/ESRA clear sky model 21
Solar Radiation Data in Iran 24
Ref. #1: Estimation of Global Solar Radiation in Iran based on Climatic Data, Ali Khalili 25
Ref. #2: Islamic Republic of Iran Meteorological Organization – Data Processing Center 27
Ref. #3: FU Information for Hashtgerd based on Karaj and Tehran Data 32
Ref. #4: Meteonorm 6.0 Interpolated Model for Hashtgerd 43
Ref. #5: Meteonorm 6.0 Data of Tehran 47
Ref. #6: U.S. Department of Energy Data 49
Conclusion of study in solar/climatic References 53
Karaj Prevailing Wind Information 55
Karaj Fastest Wind Information 56
35ha Topography Model 57
SOLARCHVISION Analysis and Hashtgerd New Town 58
Basics of SOLARCHVISION Analysis 59
Temperature Model and Degree of Need to Shade or Shine 60
Solar Radiation Model and Solar +/- Effects 61
Hashtgerd – Direct Daily and Normal Solar Radiation Beam 64
Hashtgerd – Direct (Normal) Solar Radiation Beam and its +/- Effects 65
Hashtgerd – Slope 90 (Horizontal Plane) Direct Solar Radiation and its +/- Effects 66
Hashtgerd – Direction 75 (General East side in 35ha site) Direct Solar Radiation and its +/- Effects 67
Hashtgerd – Direction 165 (General North side in 35ha site) Direct Solar Radiation and its +/- Effects 68
Hashtgerd – Direction 255 (General West side in 35ha site) Direct Solar Radiation and its +/- Effects 69
Hashtgerd – Direction 345 (General South side in 35ha site) Direct Solar Radiation and its +/- Effects 70
Hashtgerd – The Effect of Different Building Faces on Solar +/- Effects 71
Heating and Cooling Periods of Hashtgerd 96
SOLARCHVISION Analysis of 35ha site in Hashtgerd New Town 97
SOLARCHVISION Analysis of New Generation Office Building 110
SOLARCHVISION Analysis of Different Types and Proportion of Shading Devices in Hashtgerd 137
Direction 75 (General East side in 35ha site) – Radiation Model 138
Direction 75 (General East side in 35ha site) – SOLARCHVISION Model 139
Direction 165 (General North side in 35ha site) – Radiation Model 140
Direction 165 (General North side in 35ha site) – SOLARCHVISION Model 141
Direction 255 (General West side in 35ha site) – Radiation Model 142
Direction 255 (General West side in 35ha site) – SOLARCHVISION Model 143
Direction 345 (General South side in 35ha site) – Radiation Model 144
Direction 345 (General South side in 35ha site) – SOLARCHVISION Model 145
Direction 345 (General South side in 35ha site) 146
Direction 345 (General South side in 35ha site) 147
Direction 345 (General South side in 35ha site) 148
Direction 75 (General East side in 35ha site) 149
Direction 255 (General West side in 35ha site) 150
Reflectors 152
Proposed Alternative of New Generation Office Building 153
Solar Architectural Vision 159
Appendix – SOLARCHVISION Urban Studies in Hashtgerd Climate 162
Najaf Case Study 216
Sources 217
Year-Cycle Radiation Model of 35ha Site
Year-Cycle SOLARCHVISION Model of 35ha Site
Cooling Period SOLARCHVISION Analysis
Heating Period SOLARCHVISION Analysis
Below you can find some highlights of this report:
