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Solar energy and wind energy are one of renewable energies, and they are inexhaustible energy source which are available anywhere. Photovoltaic power generation and wind power generation are inexhaustible energy system, and they are cleanly safe, because of their no discharge of CO2 (one of the major causes of global warming), NOx and SOx (the major atmosphere pollutants). In designing of the energy supply system of a building, these  are one  of the efficient power generating installations.

Recent developments in photovoltaic components, small-scale combined heat and power systems and ducted wind turbines have opened up the possibility for an embedded generation approach to building design.

Most of the Brazilian population is concentrated in the shore region in cities like Rio de Janeiro. In this town, there is a large number of mechanically conditioned buildings with no possibility of use of natural ventilation for passive air conditioning. Due to the diversified cooling load profile, the use of detailed software simulation is essential. This paper presents the cooling load and energy consumption simulation results for a commercial building using the softwares BLAST and NBSLD. The indoor conditions are changed to analyze the thermal comfort impact and energy reduction.

Construction    and    operation    of    buildings    is internationally a major cause of resource depletion and environmental pollution. Computational performance evaluation tools could support the decision making process in the area of environmentally responsive building design and play an important role in environmental impact assessment, especially when a life cycle assessment (LCA) approach  is used.

This  paper  examines  the  process  by  which  the kitchen exhaust from a dwelling unit diffuses throughout the other dwelling units in a seven-story housing facility. The diffusion process was examined by tracer gas measurements and compared to computer simulation. Results showed that kitchen gases exhausted from a central unit pollute all units on that entire floor and will vary in concentration depending on the wind direction.

This paper is focused on the evaluation of simulation system using the experiment result and the con- figuration of peri-counter which is the part of counter unit setting at bottom of window side with heat panel to avoid the influence of cold draft, utilizing simu- lation system. The simulation shows similar flow pattern to full scale experiment and consequent simu- lations indicate that cold draft does not flow into interior zone when the heat generation rate exceeds heat loss from the window in most cases.

We present in this paper the essential aspects of the S2 system. This is the  internet realization of SEMPER: An active, multi-domain, space-based, object oriented design environment for integrated building performance modeling. We begin with an overview of SEMPER principles. We then present the component based system architecture of S2, which makes use of the Common Object Request Broker Architecture (CORBA) for communication between components including our analysis applications (written in C++) and other S2 components (written in Java).

The paper outlines a two-year research program where Radiance was used in the conversion of Empress Place, a national monument in Singapore, into an Asian Civilisation Museum. The paper describes how the research team fine-tune the modeling and software set- tings to cope with some of the contextual issues of design. Inaddition, the paper discusses how Radiance could be used to aid the design of the building. One of the more difficult tasks the researchers faced was to model and validate some of the daylighting control devices that are part of the existing features of the build- ing.

Nowadays   architects   commonly   use   the   ‘coupled space concept’. Examples are mezzanines, half-open office spaces and exhibition rooms. Because  of  the need to meet acoustical standards, the need to predict sound pressure levels and reverberation times for this category of spaces is ever growing.The transmission of sound from one space to another depends on design decisions like position, shape and dimensions of each of the interconnected spaces and of the “gap” between the spaces.

The numerical model for the analysis of the combined convective-conductive heat transfer in the building components has been developed. Presented model is based on the partial differential equation for the two- dimensional steady-state heat transport caused by conduction and convection. The finite element method was used to obtain the numerical solution of the governing equation. The general finite element formulation was derived by means of the Petrov- Galerkin approach. The developed computer program was used to study one typical lightweight building wall  construction.