No description available.

This thesis explores the effect of climate on the development of high density housing. With the situation in Lagos there is a tendency to neglect the effect of climate. The low income housing project proposed under the Ijaiye housing scheme is used as a vehicle to investigate this climatic concerns. The conditions that generated the design included site conditions, climate, human comfort criteria, building materials, and construction. The issues that were dealt with include ventilation, protection from direct solar radiation, treatment of common spaces, orientation, drainage, and the choice of building materials. The design solution submitted in this thesis is influenced by various sources from the field of tropical architecture with the understanding that these studies are not definitive and that further investigation still needs to be made. / Master of Architecture

No description available.

No description available.

Insignificant diurnal variations make the reliance on thermal inertia to ameliorate the thermal discomfort in the hot humid region impossible. Natural ventilation, therefore, is not only important, but the velocity of air that gets into the living area is crucial. Various ways of creating negative pressure (a process of increasing the interior air speed) are examined. The performance of roof types with different horizontal openings in enhancing interior air movement was investigated in an open throat wind tunnel. The results indicate a significant difference in the interior air velocity with roof type A opening type 1 (see fig. 27 and fig. 28). The thesis explores other ways of creating climate adapted architecture in providing acceptable comfort level in the hot humid climate. Warm humid climates are defined, and data for one example (Lagos, Nigeria) are analysed. Comfort zones are established relative to the region being investigated and the methods of limiting interior heat gain are described. The effects of orientation, cross ventilation and material choice are discussed. / Master of Architecture

Thesis (Ph. D.)--Technische Universiteit Delft, c2001. / Includes bibliographical references (p. [223]-244) and index.

Thesis (Ph. D.)--Technische Universiteit Delft, c2001. / Includes bibliographical references (p. [223]-244) and index.

This dissertation investigates the effect of the geometry of external shading devices upon light distribution, air flow pattern and thermal comfort, with direct application to the tropical hot-humid climates. A series of 30 different configurations of shading devices were evaluated under four different testing conditions, including overcast and clear sky for daylighting, and perpendicular and oblique winds for natural ventilation. The total of 120 tests on identical size scale models, was undertaken at the V.P.I. & S.U. Environmental Systems Lab via a low-speed wind tunnel (for air flow pattern) and an artificial skydome and real sky (for light distribution), with the use of conventional measurement devices. This research has made progress toward the goal of providing a framework to collect performance data and to display it in a graphical format, so that direct comparison can be made. This simultaneous reporting proved to be important since it facilitates a determination of whether natural lighting is being obtained at the expense of ventilation or whether the lighting has been sacrificed for ventilation, as related to human comfort. It demonstrates that no shading devices, either horizontal, vertical or combination, behave identically under identical conditions. Through the analytical model, this research has described a procedure by which designers can identify and select, from the performance data, the most effective use of shading devices based on their optimal characteristics. It provides the information about achieveable levels of performance of the given shading configuration and a prescriptive way on how that performance can be achieved. It also serves as a basis for a more systematic approach, and demonstrates that the amount of experimental work required to investigate the wide range of shading possibilities, while certainly formidable, is not excessive. / Ph. D.

The intent of this thesis is to develop a concept for a structural and enclosure building system that will be applicable to the typical existing housing units in San Juan, P. R. The system will respond to criteria based on environmental, socio-cultural and architectural concerns. / Master of Architecture