Paper Conference

Proceedings of uSim Conference 2018: 1st uSim Conference of IBPSA-Scotland

     

DEVELOPING HIGH-RESOLUTION BOTTOM-UP BUILDING STOCK MODELS USING AERIAL IMAGES AND DYNAMIC SIMULATION

Jack Byres, Ioanna Vrachimi, Daniel Cóstola

Abstract: This project aims at improve the methods currently used for the development of high-resolution (individual building level) urban models for the evaluation of energy related to space heating and cooling. This is achieved by using a dynamic simulation as calculation engine and models primarily based on publicly available satellite/aerial images. Buildings are modelled using ESP-r and represented by a single zone for a typical floor; results are multiplied by the number of floors to estimate the total energy consumption. Building geometry, fenestration and external absorptivity are derived from aerial images (no automation of this task is addressed in the paper). Results are validated using smart meter data covering 3 years of gas consumption in 8 buildings in Glasgow, Scotland, with a normalized root mean square error (NRMSE) of 28% for heating energy consumption. Future work focus on means to obtain envelope properties that can be more easily scaled up to urban level, as the current state of the art in the field relies on data from individual building surveys, which is rarely available.
Pages: 79 - 87
Paper:
usim2018_032