Trans RINA, Vol 156, Part C1, Intl J Marine Design, Jan –Dec 2014
To optimise the use of daylight the choice of material and finishes varies from perimeter spaces to deeper spaces. So as to firstly encourage their use during the day time and to better serve the potential of daylighting, by incorporation of more reflective surfaces and better colour choices. The separation of zones into day and evening areas may have the additional advantage of tailoring HVAC system design. Although this might present challenges for both the designer and crew as occupant
behaviour can be
function or requirements of the zone may change over time.
unpredictable and the
suggestions. The design therefore adopts a daylighting scheme which is both supported by a light colour trim and a convenient arrangement of furniture and low level partitions to separate the zone to best accommodate the visual needs of the occupants. Task lighting has also been implemented at suitable locations that allow user control of the zone for more visually demanding tasks such as reading, so that the main ambient lighting arrangement can be scheduled to turn off during periods of low occupancy, with low level lighting or mood lighting to complement
the existing design during
evening periods. High gloss flooring has been used to improve reflectance capabilities and to maximise the effects of both natural and artificial light. To ensure textural cohesions, cushions, matts and carpeted sections have been incorporated within the design such that a tactile equilibrium cab be attained and to prevent highly reflective surface from
becoming too clinical in
appearance. 5.
DISCUSSION Figure 30: Render of room, view from door
This study develops the concept of an idealized window size for the marine environment. Through the linking of both thermal and lighting modules that
identify a
triangulation point between necessary loads to maintain thermal and visual comfort. This complex interaction is examined through the analysis of annual loads pertaining to the identification of the design with the lowest energy consumption.
Factors such as visual comfort
and
psychological pleasure are not considered in this methodology, such as glare and user perception. These would need to be evaluated through a qualitative research methodology to determine the impacts of daylighting and interior colour in a sensorial quality assessment to weigh the triangulation point aspects [52].
to consider emotional Figure 31: Render of room, view from balcony door
From the comparative analysis in section 4.6, it is clear that a natural lighting scheme has a limited effect on cabin zone energy performance, due to its limited day time occupancy. Instead the glazing type and glazing size as well as shading have a greater influence. In order to overcome this and still maintain aesthetic requirements as well as an ocean view, a reduced glazing percentage has been considered with the addition of external louvers which
As a growing area of research, glazing characteristics are an element of this study which warrants further investigation.
Long and short wave performance and comfort. Although
design
characteristics are an important factor both in terms of energy
transmittance briefly
have been implemented as an architectural
element with sculptural qualities. The walls and ceilings have adopted colours and finishes that increase the average reflectance of the interiors. This makes better use of the available natural light and provides a light and airy appearance, as shown in Figure 30 and Figure 31.
The day/lounge area seems to benefit mostly from a natural lighting scheme and from the improvement of surface
reflectance in accordance to the 2012 SLL
considered in this study, smart technologies such as electrochemical, photochromic and thermo chromic glazing systems are not explored and may allow for an automated response to orientation and location, reducing variation from the mean energy performance. They would also allow user control and the variability of natural light into the interior space, thus allowing personal adjustment to the mood of the room.
Overall the results identify the potential for the
acclimatization of ship design based on knowledge of the ship operation, room behaviour and ship itinerary. In engaging with this parametric process it has been possible to achieve a reduction in sensible and lighting loads. A zone with a greater daytime occupancy can benefit from daylighting as effectively indicated by the
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©2014: The Royal Institution of Naval Architects
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