Climate-Based Daylight Analysis for Residential Buildings (original) (raw)

An Investigation of Annual Daylighting Metrics for Residential Houses

2019

Simple daylighting metrics is also necessary for the BIM design of residential houses. Prior to the establishment of annual daylighting metrics for residential houses in Japan, we investigated the indoor daylight environment in the houses on three blocks in Passive Town Kurobe. Firstly, several parameters and the settings of physical property values in the simulation were adjusted so that the percentage errors of the simulated average luminance on the interior surfaces in each house were less than 10%. Secondly, the annual daylighting simulation was conducted considering the actual operation of shading devices. Using the simulation results by referring to DA and sDA, we propose verDA (Vertical Daylight Autonomy) and versDA (Vertical Spatial Daylight Autonomy) as new daylighting metrics for residential houses in Japan. These metrics are calculated from the vertical eye illuminance, which is more relevant to brightness perception and human health.

Daylighting metrics for residential buildings

2011

Abstract It is now widely accepted that the standard method for daylighting evaluation-the daylight factor-is due for replacement with metrics founded on absolute values for luminous quantities predicted over the course of a full year using sun and sky conditions derived from standardised climate files. The move to more realistic measures of daylighting introduces significant levels of additional complexity in both the simulation of the luminous quantities and the reduction of the simulation data to readily intelligible metrics.

Daylighting Strategies: Building’s Sustainability and Energy Efficiency

Journal of Civil Engineering and Architecture, 2013

Improving daylighting strategy is a mandatory step to achieve visual enjoyment and energy saving in buildings. Psycho, physiological effects and energy performance have to be investigated in order to define a range of different daylighting strategies, thanks to daylighting devices and climate based daylight modeling. Daylighting optimization ensures indoor healthier rooms, reduces electric light consumption and cuts the risk of glare. The best way to achieve these targets is to define users lighting needs, based on visual targets and to draw up some green measures to reduce electricity demands. Involving new climate-based daylight modeling metrics aims at defining proper illumination targets, in order to drastically reduce electrical lights, as well as reducing thermal loads deriving from cooling and HVAC (heating, ventilation and air conditioning) systems.

Climate-based Daylight Performance: Balancing Visual and Non-visual Aspects of Light Input

2011

ABSTRACT This study uses a domestic dwelling as the setting to investigate and explore the applicability of daylighting metrics for residential buildings, including the formulation of metrics for nonvisual effects. The simulation approach used to generate the performance data from which the metrics are derived is called climate-based daylight modelling (CBDM). This approach delivers predictions of various luminous quantities using sun and sky conditions that are derived from standardised annual meteorological datasets.

Daylight performance: Daylight quality and control of energy consumption

1999

The European Commission’s Daylight-Europe (DL-E) project set out to produce design guidelines for practitioners wishing to incorporate daylight utilisation principles within buildings as a means to displace the electrical power consumption associated with artificial lighting. The intention was to produce these guidelines in a designer-friendly format, where notable examples are used to illustrate the operational and integration aspects of the different possible approaches. Within the project simulation was applied to several existing buildings incorporating different daylight utilisation technologies. For each case studied, performance has been assessed in terms of HVAC and electrical system capacities, fuel consumption, environmental emissions, thermal and visual comfort and glare sources.

Evaluation of Daylight in Buildings in the Future

2015

Building regulation requirements and traditional engineering practice for daylight calculations is often outdated and unsynchronized with the advance and needs of modern sustainable building design. State-of-the-art calculation tools provide accurate results on daylight conditions using methods as simple as calculating the useful daylight illuminance. These methods facilitate sustainable building design that also works in practice. This is illustrated with an example where the daylight conditions in an office with different types of solar shading is examined.

Daylight Performance of Adapted Industrial Buildings Udc 725.4(497.11)

2016

This paper assesses the potential of historical industrial buildings to be reused as office spaces. Belgrade's industrial heritage has been classified according to the criteria that influence visual comfort, including glazing area, floor depth, and orientation. Daylight performance of two representative buildings has been analyzed using daylight factor, point in time illuminance and spatial daylight autonomy. Potential improvement strategies that would not have a negative impact on the historical character of buildings have then been discussed. Further studies include increased internal surface reflectance and introduction of roof-lights. The impact of roof-lights on the annual cooling and heating load has been addressed in parallel. Since LEED is the dominant sustainability assessment tool in Serbia, preliminary compliance with LEED v4 Daylight credit has been assessed for all options. The methodology and findings can be applied to a wide range of industrial buildings in simila...

Aspects and issues of daylighting assessment: A review study

Proper assessment of indoor daylighting conditions can significantly reduce energy consumption due to artificial lighting and can improve indoor visual comfort. This paper gives a critical review of the fundamental aspects of daylighting indices with the aim to provide a broad overview of methods and indices available to assess daylighting from varying points of view. Assessments cover distribution, availability over time and in specific climatic contexts, uniformity in the space, visual comfort issues and the relations between each of these aspects and a proper building and lighting design. A special focus on the assessment of indoor spatial and temporal uniformity is given. An analysis of the application of day-lighting design by researchers and designers according to several area of interest is also presented.