I= ENVIRONMENTAL SIMULATION STUDIES IN QUETTA
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Title of Thesis
ENVIRONMENTAL SIMULATION STUDIES IN QUETTA

Author(s)
Syed Zafar Ilyas
Institute/University/Department Details
University of Balochistan/ Department of Physics
Session
2004
Subject
Physics
Number of Pages
247
Keywords (Extracted from title, table of contents and abstract of thesis)
environmental simulation studies, solar wind, auto-correlation functions (acfs), parasitic infection, solar data, wind and weather data, direct radiations, solar plate collectors, thermal performance, photovoltaic power system (pps)

Abstract
The critical reviews on solar wind and weather data of Quetta Pakistan and studies on regional climate changes and its impacts as well as simulation of environment with mathematical modeling respectively are presented on the basis of analytic pedagogic intuitive and logical approaches. We circumvented the areas of researches, which were over-emphasized whereas some of which are pertinent to our studies in the thesis. A relationship between humidity and temperature is developed which shows a Gaussian trend to fit the experimental data. We also deciphered another relationship for solar energy and its frequency, which yielded an inverse Gaussian behavior. A time series analysis is made on data of humidity and temperature variations by computing the auto-correlation functions (ACFs) which shows that the first two coefficients, i.e auto covariance coefficients at lag are significantly different from zero. The results of ACFs for humidity & temperature respectively show short-term correlations and high particles and pollutants at Quetta valley suggests less occurrence of low pressure at relatively higher altitudes. The wind contour maps of the whole country are prepared which categorized wind speed ranges at different locations and indicated that the highest wind speed occurs in summer and the lowest in winter. The analysis of wind speed data provides bather prospects for wind energy conversion systems in Pakistan. The maximum solar energy in the from of absorbed heat is intercepted at s=0 and s=Q-15 where is the tilt angle and d is the latitude of Quetta (latitude 30 11 N longitude 66 57 E) which is elevated at a distance of 1799 m from the sea level. Aluminum sheet is found as the best receptor of solar energy as compared to other flat plate collectors. A decentralized design of solar voltage electrification is also proposed. The daily values of global solar radiation of successive clear sky days when compared to each other are not always equal. This is due to fact that the level of atmospheric pollutions depends upon meteorological situations influencing the areas. The variations of global solar radiation values at Quetta are large during summer and autumn due to fine dust particles and pollutants covering the valley and indeed very low humidity in the valley. The percentage estimation of the total atmospheric pollution in Quetta for summer and winter is estimated 34% and 59% respectively on the basis of our self developed harmonic analysis model. Another simple model is developed for the diffuse luminous efficacy for vertical surfaces facing North, East, South and West. The model has the same mathematical form for the four surfaces, with the two empirical coefficients being different for each of them. This model yields better results when the amount of direct radiation incident on the surface is small. For the vertical surface facing North, the model offers an excellent performance.

Information regarding epidemiological factors responsible for parasitic infection were collected through distribution of questionnaire/Performa among uneducated families. While in villages and hospital /wards personal visits were made. Through observations and interviewing parents, teachers and surveying staff particularly those preparing food and diapering infants and children both in houses schools day care centre and hospitals were made. Personal hygiene feeding behavior, pattern practices believes and customs were noted. Environmental conditions of all these study areas were deeply investigated

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1833.62 KB
S. No. Chapter Title of the Chapters Page Size (KB)
1 0 Contents
74.03 KB
2 1 Introduction 1
555.17 KB
  1.1 Critical Review On Solar Data Of Quetta 2
  1.2 Critical Critical Review On Wind And Weather Data Of Quetta 23
  1.3 Crtitical Review On Regional Climate Change And It Impacts 33
  1.4 Critical Review On Simulation Of Environment With Mathematical Modeling 53
3 2 Methodologies Results And Discutssions 67
1239.93 KB
  1.1 Sky Condition At Quetta 91
  1.2 Monthly Average Diffuse And Direct Radiations On A Horizontal Surface 91
  1.3 Data Used 99
  1.4 Optimization Of Spectral Emissive Power For Solar Radiations 106
  1.5 Thermal Performance Of Solar Flat Plate Collectors At Tilt Angles Using Isotropic Model 109
  1.6 Experimentally Estimated Optimization Of Thermal Performance Of Solar Plate Collectors Both At Direct And Tilt Angles By Using Optimized Spectral Emissive Power 110
  1.7 Theoretical Estimation Following Mathematical And Statistical Analysis For Optimization Thermal Performance Of Flat Plate Collectors 115
  1.8 Results And Dissection 118
  1.9 A Case Study For Photovoltaic Power System (PPS) Of A Village At Mustang 119
  1.10 Flat Panel Solar Array 120
  1.11 Typical Panel Design 121
  1.12 Storage Battery 122
  1.13 Summary 122
  1.14 Climatological Parameters, Environment Simulation And Its Interrelation Effects 123
  1.15 Discurete Time Series 142
4 3 Conclusions And Suggestions For Future Work 208
82.3 KB
  3.1 Conclusion 209
  3.2 Suggestions For Future Work 25
5 4 References 221
175.3 KB