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Aperture-based daylight modelling: Introducing the ‘View Lumen’

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conference contribution
posted on 01.07.2019, 08:38 by John Mardaljevic
This paper presents a new way to determine measures of view at the building aperture. It introduces the concept of the view lumen – this is the illumination effect received at the building aperture from a visible external entity (e.g. ground, sky, obstruction, etc.) which is made self-luminous for this purpose. The paper describes the fundamental principle behind the view lumen, and gives some preliminary illustrations of the technique to show its potential. The examples employ the British Standard framework to define categories of view. That is, three layers named upper, middle and lower comprising, respectively, sky, natural or man-made objects (e.g. buildings) and ground. The proposal is an extension of the recently introduced sunlight beam index

History

School

  • Architecture, Building and Civil Engineering

Citation

MARDALJEVIC, J., 2019. Aperture-based daylight modelling: Introducing the ‘View Lumen’. Presented at the 16th IBPSA International Conference & Exhibition Building Simulation 2019, Rome, 2-4th Sept.

Source

16th IBPSA International Conference & Exhibition Building Simulation

Publisher

IBPSA

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

06/05/2019

Publication date

2019

Language

en

Location

Rome

Event dates

2-4th Sept

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Keywords

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