Design of Energy Efficient Buildings for Hot Areas of Ethiopia With Respect to Air Conditioning
No Thumbnail Available
Date
2004-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
This thesis is intended to identify the design improvements of buildings that can be made
for the hot region of Ethiopia. A detail literature survey is done on design improvements
and those that can be most suitable and economical are suggested. A case study of two
different buildings in Gode (one of the hottest area in Ethiopia) was conducted using
building energy simulation software to quantify the energy saving from some of the design
improvement measures such as using insulation in roof or ceiling and in walls, window
glazing and shadings, and orientation. The simulation result verifies that using 75mm
insulation in roof or ceilings give a better saving and most economical when the building
has small glazing area with respect to the wall size and lower internal cooling load. And
when the building has large glazing area using either internal or external window shading is
the best way to reduce the annual energy cost of the building and 50mm roof insulation is
most economical. In addition to the above results the relation between insulation and
different conditions of cooling load in a building is verified. This result shows that when
internal load and solar load through window are dominating insulation can have a negative
impact to cooling load.
Description
Keywords
Mechanical Engineering