Assignment 1

Pagina 1

Green Building Energy Systems POLITECNICO DI MILANO DEPARTMENT OF ENERGY ENGINEERING First Assignment Authors: Paolo Lazzarini 913753 Guglielmo Novellini 914137 Francesca Oliva 913207 Francesca Porziani 927677 Mohammad Amin Tahavori 896200 Supervisor: Prof. Cesare Maria Joppolo May 17, 2019 Contents 1 Simulation of the Building 1 1.1 Model Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Thermo-Physical Properties . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Thermal Specifications of the Building . . . . . . . . . . . . . . . . . 4 1.4 Loads Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Results & Discussion 7 2.1 Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1.1 Heating Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1.2 Cooling Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.2 Energy Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3 Proposals & Improvements 22 3.1 Analysis Improvement . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.2 Structural Proposals . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2.1 HVAC System . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2.2 Glazing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2.3 Energy Sources . . . . . . . . . . . . . . . . . . . . . . . . . . 24 I General Description of Activity The property is part of a block delimited by Piazza San Babila, Via Cerva, L. Augusto and Via Durini. It is a 21,000m2 building with three main blocks. The one facing Via Durini has seven decks; the north wing varies from four to six decks; the south one from four to seven. Their "U" shape embraces an internal building, of two decks, dominated by a…