T50 C.4 Energy audit and inspection proceduresTask 50 Subtask C Report C4
May 2016 - PDF 9.17MB
This document consists of three parts dealing with energy audit and inspection procedures The first section (2.1: Daylight performance assessment methods), deals with the description of the different metrics available to evaluate the daylight contribution. These metrics are distinguished in two categories: Daylight availability metrics and daylight glare metrics. For each of them, a short description is given, followed by an example. Then comes a paragraph describing the boundaries of the metric and some references. The topic of the second section (2.2 Investigation of energy monitoring procedures for
electric lighting systems) is addressed in detail within the framework of subtask D (Casestudies). This chapter does not intend to report on this work, but simply focuses on the presentation of a “flash” analysis method used in Switzerland to assess the lighting status of existing buildings. This simple method, based on a quick tour of the building, is used as a kind of checklist. Insofar as it does not include detailed monitoring (only a few punctual illuminance measurements) it does not intend to draw a detailed view of the situation but aims to identify the potential actions for lighting refurbishment.
In the third section (2.3 Benchmark on case-study) we show, for the different metrics, the results obtained by the simulation tools described in C-2 document. The case study corresponds to the “After Refurbishment” situation described in C2 document (cf. C2.6.1 Description of the case study for lighting simulations).