الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 213 |  |  |
| | | from | 213 | | |
Abstract
Houses in Egypt are often designed without sufficiently taking the climate into account. Factors; such as the urban environment, site characteristics, orientation, architectural design of the building, and choice of building materials, etc.; are not emphasized.
Many researches have been involved in studying thermal comfort in Egyptian housing, especially in the New Assiut City and conducted small and wide scale measurement so far. The results showed that serious problems of discomfort generally exist in the new housing projects with poor indoor air quality. Based on the measurements conducted, the strategies that may be appropriate for the building in such climate are evaporative cooling and natural ventilation; according to the bioclimatic chart for building strategies and other indices. Therefore, there is a great expansion in using air conditioning to cool buildings. But high energy consumption is not affordable, especially for low income people, as low income people have limited, insufficient financial resources to use AC. Therefore, these conditions encourage such a concept to enhance using the natural passive cooling strategy for the New Assiut City with zero energy consumption for cooling.
To achieve this aim; the research adopts four methods: the descriptive method (chapter 1), the analytical method (chapter 2), the deductive method (chapter 3), and the applied method (chapter 4, 5). Finally, the research is concluded (chapter 6) with the results and guidelines for the system performance.
Chapter One: Research context, background, problem and aims:
It is the introductory chapter that gives an overview of the whole research contents. In it, the overview of the whole research project, the research geographical & climatic context, the research background, the research problem, the research scope, the research structure, the research objectives and its main aim are all presented. Finally, the research general methodology is outlined.
Chapter Two: Case study building measurements & evaluation for indoor environment (New Assiut City):
The aim of this chapter is to investigate indoor environment for the new housing in New Assiut city, through monitoring indoor air temperature, humidity and Co2 concentration in the summer season, in order to understand the real situation in some houses in New Assiut city and search for new suitable passive strategies to solve the problem of occupants’ thermal comfort and search for the new suitable passive strategy. New Assiut city is chosen as a case study. Also, a detailed analysis of the chosen case study is conducted through highlighting indoor Co2 concentration, thermal comfort and its effect on indoor air quality (IAQ) with different ventilation scenarios.
Chapter Three: Solutions and strategies for indoor environmental problems:
This chapter presents science related to natural ventilation (Stack effect & wind pressure) and evaporative cooling. Also, it presents a critical review of literature on different passive techniques (Wind tower, solar chimney, and integration of solar chimney with an evaporative cooler concept) in order to understand the limitations of the current system and search for a new system. In general, this chapter aims to understand the techniques for natural ventilation, evaporative cooling and search for new passive strategies based on the limitations of the conventional systems inside/ outside Egypt to achieve compact and high advantage of integration.
Chapter Four: Integration of the solar chimney with the new cooling tower as a passive ventilation technique:
In general, this chapter aims to investigate the possibility of using natural ventilation with an evaporative cooling strategy using numerical modeling (simulation), in order to achieve zero energy consumption for cooling and indoor thermal comfort according to ACS and ASHRAE under the steady state condition & the weather data of the New Assiut City. First, mathematical modeling of the integrated system is developed. Then, the proposed model is built into COMIS & TRNSYS simulation softwares. Finally, indoor temperature, humidity environment, and CO2 concentration are evaluated.
Chapter Five: Optimization and parametric investigation for the new proposed system:
This chapter focused on optimization of the important parameters of the system on indoor environment to achieve compact design and high advantage of integration. Investigation is done under the steady state condition & weather data of the New Assiut City based on the optimization methodology. As a result, indoor temperature, humidity environment, and air flow rate for the proposed system – after optimization – were analyzed and compared with the system before optimization. Important conclusions for the performance of the integrated system were drawn; highlighting the system limitation.
Chapter 6: Conclusions and further work:
The research reached a conclusion for the case study in the New Assiut city through monitoring indoor environment, search for the suitable strategy for that climate, and the system performance based on the numerical modeling. Then, guidelines for the efficient optimization process were presented to apply the interacted system on different living rooms with different circumstances. Finally, the further work is proposed.
At the end of the thesis the appendices and the publications are presented.