desain rumah minimalis modern

my name is rizki a. mangkuto, i come from tangerang. since 2010 until present, i work as a phd researcher in the group of building performance and building lighting in the unit building physics and services, at the department of the built environment at tu eindhoven. previously, i got my bachelor and master degree from the department of engineering physics bandung institute of technology, with the specialisation in building physics.

desain rumah minimalis modern, building physics is a science dealing with every physical aspect inside buildings or more generally the built environment, that eventually focuses on the comfort of human as the main users the comfort aspects consist of several main branches, among others are thermal, acoustic or sound, and visual or lighting. i choose lighting engineering in particular because light, as a media which makes indoor human activity visually possible

is very often underestimated. in fact, not only supports the activities in term of function, light also influences the physiological and psychological performance of human. in the context of building, light also determines the amount of consumed energy, in a way that the placement and utility of light sources inside buildings are so important to consider, both in design and operational stages. my current research is about predicting the potential of “virtual natural lighting solutions” in buildings, using computational modelling and simulation. previous research has shown that daylighting, or simply the presence of window with view to outside is very influential to the performance of the user inside the space.

workers who have access to windows can perform better in their work, hospital patients who stay in windowed rooms can have a shorter recovery time. however, daylighting inside buildings is always limited by space and time. for example, in a room with no direct connection to the building faã§ade, the admitted daylight will be minimised or close to nothing. also, during the nighttime or dark condition, some people still have to work, as in the case of the night shift workers here, we offer the concept of virtual natural lighting solutions or vnls. in general, vnls can be classified based on the generated light quality, particularly “directionality”, as well as the displayed “view” quality. at the moment, the product of “virtual window” does exist in the market, but mostly still has a diffuse light distribution that goes uniformly to every direction.

on the other hand, the real natural light is not diffuse, it has a specific direction depending on the location and time. what we are doing now is basically two things: first, evaluating performance of existing virtual windows in a laboratory setup focusing on lighting level/illuminance, brightness/luminance, and electrical power and current consumed by the system during its operation. beside evaluating the existing system performance, the measurement results are also used to validate the simulation results obtained with radiance software. second, we employ building performance simulation tool to model vnls with a non-diffuse light distribution, which does not exist at the moment. modelling and simulation are used to predict the performance of light and energy consumption of vnls application inside buildings.

the results are then compared with simulation of the same buildings with real windows instead of vnls. if the the vnls performance is better than that of real windows in the same scene, it can be concluded that the vnls has a potential to apply in the real building design. we have now shown that with a certain configurations in a reference space, vnls can generate the percentage of workplane fulfilling the minimum illuminance criterion of 500 lx which is larger than if real windows are put instead. from the visual comfort point of view, vnls in our model resulting glare indices which are comparable to that of real windows. in term of annual energy consumption, vnls can reduce the total energy for heating and cooling, compared to that of real windows in a given space.

as a next step, we will continue with introducing view with a higher complexity, as well as light source with different input power, then performing sensitivity analysis to observe which factors actually influence the system’s performance. then, application in various space function will be also simulated, in order to get a complete mapping of the potential of this vnls system. i hope this research can be applied in situations where natural lighting is very much required but cannot be afforded for instance in offices with cubicles or in rooms without access to windows, or even in patients or operation rooms in hospitals. indonesia has a huge potential of sunlight, since we know no regular four seasons. i think we should be able to optimise the use of natural light inside buildings.

therefore, the science and knowledge on building physics and lighting engineering have a very important role for that purpose.

>