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Objectives of the course
- Introduction to radiative and convective heat transfer at urban scale
- Understanding of the mutual interactions between microclimate and urban fabric (especially buildings)
- Assessment of urban microclimate mitigation strategies and techniques to refurbish the urban fabric as resilient to changing climates both thanks to the building envelope performance design and urban shape design (with respect to air circulation)
Target
This course is organized for doctoral students dealing with energy and buildings, and urban microclimate and buildings (mainly with a background in Building Systems Engineering and Environmental Engineering). The course is however open to anyone willing to attend (including post-docs).
Prerequisite
- Strong basics of building physics
- Basic statistics and basic computational skills (e.g. Matlab, R, or other data-analysis/computational environment)
Lecturers
prof. dr. Alberto Zasso, Polimi – Dept. Mecc
dr. Riccardo Paolini, Polimi – Dept. ABC
dr. Anna Laura Pisello, Università di Perugia – Dept. of Engineering
dr. Catherine Gorlé, Stanford University - Dept. of Mechanical Engineering
dr. Paolo Schito, Polimi – Dept. Mecc
Coord. dr. Riccardo Paolini
Detailed program [1-2 December 2014; 12-15 January 2015]
Day 1 - Dec 1st (09:15 - 18:15)
Room 106 - 1st floor - Dept. ABC - Via Ponzio 31 (Milano)
Lecture 1 - Introduction. Lecturers: Riccardo Paolini
[01/12/2014 09:15 - 11:15]
Overview of the course. Motivation of the course. Impact of urban microclimate on building energy needs, and impact of buildings on urban microclimate. Features of urban climates, and urban fabric. Physical phenomena involved in the urban surface energy balance. Instruments, methods and measurement techniques.
Lecture 2 – Weather data: from airports to the urban fabric. Lecturer: Riccardo Paolini
[01/12/2014 11:15 - 13:15]
Weather data collection. Available typical weather data and urban data. Quantities, instruments and measurements methods. Measured and derived quantities. Modelling of non-measured quantities. Measurements reliability and their significance.
Workshop 1 – Weather data sets. Riccardo Paolini
[01/12/2014 14:15 - 16:15]
Weather data analysis, selection and completion of weather data sets.
Lecture 3 – Urban microclimate mitigation. Lecturer: Riccardo Paolini
[01/12/2014 16:15 - 18:15]
Urban microclimate mitigation strategies and techniques: building and urban envelope performance based design. Optical and radiative properties (and performance) of urban surfaces. Instruments and measurement methods. Influence of ageing (weathering and soiling) on optical and radiative properties. Green (vegetated) roofs and walls: evapotranspirative cooling and hygrothermal performance. Visit to optical-radiative lab @Polimi-ABC.
Day 2 - Dec 2nd (09:15 - 18:15)
Conference Room "Punta Nave Piano Terra" - Via Bonardi 9, ground floor of building 14 "NAVE"
Lecture 4 - Energy simulations of networks of buildings.Lecturer: Anna Laura Pisello
[02/12/2014 09:15 - 13:15; 14:15 - 18:15]
Overview about the state of the art on building thermal-energy performance analysis through numerical simulation and experimental activities. Building Energy Simulations in the urban environment: spanning the boundary of single-building systems to evaluate inter-building effects. Urban Heat Island mitigation in environmental certification schemes (e.g., LEED).
Day 3 - Jan 12th (14:15 - 18:15)
Campus Bovisa - Meeting room 2nd floor, Wind Tunnel, Via Lambruschini 16
Lecture 5 - Introduction to Atmospheric Boundary Layer Theory. Lecturer: Catherine Gorlé.
[12/01/2015 14:15 - 16:15]
Introduction to the Atmospheric Boundary Layer: definition, turbulent transport, buoyancy, ABL depth and structure, micrometeorology. Turbulence kinetic energy.
Lecture 7 - Introduction to Wind Tunnel testing.Lecturer: Alberto Zasso / Paolo Schito.
[12/01/2015 16:15 - 18:15]
Introduction to wind tunnel activities. Differences between urban parameterization techniques / CFD approach / Wind Tunnel modelling. Wind tunnel visit.
Day 4 - Jan 13th (09:15 - 16:15)
Campus Bovisa - Meeting room 2nd floor, Wind Tunnel, Via Lambruschini 16
Workshop 2 - Wind Tunnel testing. Lecturer: Paolo Schito.
[13/01/2015 09:15 - 13:15]
Wind tunnel experiment. Measures of ABL wind profiles.
Lecture 8 - Introduction to Atmospheric Boundary Layer Theory. Lecturer: Catherine Gorlé.
[13/01/2015 14:15 - 16:15]
Stability, Monin-Obukhov similarity theory. Introduction to CFD.
Day 5 - Jan 14th (09:15 - 18:15)
Campus Bovisa - Meeting room 2nd floor, Wind Tunnel, Via Lambruschini 16
Workshop 3 - Wind Tunnel testing.Lecturer: Paolo Schito.
[14/01/2015 09:15 - 13:15]
Wind tunnel experiment. Measures of flow in urban canyon.
Workshop 4 - Wind Tunnel testing.Lecturer: Paolo Schito.
[14/01/2015 14:15 - 16:15]
Wind tunnel experiment. Data post processing.
Lecture 9 - Case studies in CFD simulations. Lecturer: Catherine Gorlé.
[14/01/2015 16:15 - 18:15]
Turbulence modelling in CFD: RANS and LES. Case studies. Validation and Uncertainty Quantification.
Day 6 - Jan 15th (09:15 - 16:15)
Conference Room "Punta Nave Piano Terra" - Via Bonardi 9, ground floor of building 14 "NAVE"
Workshop 5 - Case study definition. Riccardo Paolini
[15/01/2015 09:15 - 11:30]
Introduction to available (freeware) tools to model the urban microclimate (SOLWEIG and an urban canopy parametrization). Guidance in the selection of individual case studies. Training on individual case studies.
Workshop 6 - Case study definition. Riccardo Paolini
[15/01/2015 11:30 - 13:15; 14:15 – 16:15]
Guidance in the selection of individual case studies.
Training on individual case studies.
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