Daylight in Museums: Exhibition vs. Preservation (original) (raw)
Related papers
Daylighting museums - a case study in Lisbon
2000
In Portugal, daylighting solutions in Museums have been frequently put aside on behalf of all-artificial lighting solutions, simpler to apply. However, being daylight one of the key factors in environmental comfort for users in public spaces, such as in museums, the architect's role is fundamental to select and implement effective and integrated daylighting systems. The knowledge of daylighting properties in
Malaysia has tropical sky conditions, receiving plenty of natural light throughout the year. Natural light fluctuates greatly and it can be rather tricky to provide good distribution of daylight throughout an interior space and this prompts the need for strategic daylight control programme in a historic museum gallery. Surface reflectance is a significant design consideration, particularly with regards to how light is distributed throughout an interior space. Research on how the internal surfaces reflectances are controlled for long-term preservation of museum exhibits is still lacking for tropical skies conditions. The study aims to assess the internal surface reflectance contribution at a west facing daylit historical museum gallery through in-situ measurements and simulation model assessment. The results obtained in these experiments are visually compared with the existing surface reflectance values through simulation modelling. The results show new knowledge on light damage issues. The results also highlight daylighting distributions control and light exposure limits through realistic predictions' images and reflectance's alterations. The study confirms that surface reflectances can be a control mechanism for preventive conservation in the historical museum gallery. Introduction The surface colour and reflectance of interior walls, ceiling installation and floor are important criteria for any lighting scheme. For any given amount of light flux entering an interior space, the surface colour reflectance can have a major impact on the level of illuminance in the room [1]. To determine the validity of this opinion, daylight simulations based on overcast sky conditions, were performed for varying surface reflectance configurations at the The Admiral Cheng Ho Gallery, Melaka. The simulation evaluations were based on average daylight level on the work-plane/exhibit height and comparisons of rendered images of the study gallery space for illuminance levels on specific surfaces. The findings are then assessed and the best conditions of surface reflectance for long-term preservation of museum artefacts under given sky condition are recommended.
Optimization of Daylight in Musuems and Art Galleries
EPRA International Journal of Research & Development (IJRD), 2021
The aim of research is to identify the connection between daylight and museums. A museum may be a place where individuals will explore and learn the past, present and future of history, culture and science. Nowadays museum architecture emphasizes the museum for public interaction and best for education approach. The museum lighting is a challenge with daylight openings. This paper analyses the lighting environment of museum and art galleries with a satisfactory solution of daylight by using different passive design strategies without avoiding the harm to the artifacts and these parameters are good lighting solutions for existing as well as proposed building in terms of sustainability, energy consumption and perseveration. By using these parameters, we can also manage the artificial light and provide an advance solution in LED technologies and lighting solutions can be effectively used to retrofit a museum lighting environment and affecting the connection to the environment. Consider...
This paper highlights the results of light levels and light-fastness study conducted in four daylit historical museum galleries in Malaysia. These museums architectural features allow sun radiation into the building, causing light exposure damage to artifacts. This study aims to evaluate the luminous exposures and light-fastness as an initial preventive conservation measure in daylit historical museum galleries under the tropical sky conditions. Light sensors with data-loggers and Light-fastness dosimeters were installed throughout the museums to take cumulative light exposure measurements during museum opening hours. Both instrumentations were tested in the field during different campaigns exposures. After exposures between 90 and 100 days, these dosimeters showed photo-induced colour changes which translated exposures into equivalent luminous exposure and estimated annual exposures (Lux hours) which were used to validate the measured values of illuminance data. Simulated light dosimeters and measured illuminance data show good correlation. Thus, equivalent light dosimeter makes sense to assess the impact of light distributions.
An Experimental Study of Museum Showcases in Florence Under Real Operating Conditions
2020
The aim of this research was to analyse museum display case performance in three very famous museums of Florence, during their actual operation conditions, by means of experimental monitoring campaign results assessment and comparison. In particular, the boundary conditions (synergic) effects, i.e. thermophysical behaviour of building and exhibition ambient within which the showcase is located, time profiles of space use, high peaks of sensible and latent thermal loads due to visitor influx, on internal microclimate stability and their influence on the showcase efficacy for preventive preservation, were investigated. Findings concerned fundamental indications on how to achieve an optimal control of macro and micro-environment for preservation. Search results highlighted that the efficacy of any kind of display cabinet, to ensure the thermohygrometric conditions at real operative functioning, necessary for Cultural Heritage (CH) protection and preservation, depends on building thermo...