نتایج جستجو برای: water resourse system
تعداد نتایج: 2700237 فیلتر نتایج به سال:
Water requirements in many large water supply systems are provided by mixing water withdrawal from surface and underground resources with different quantity and quality.Water supply from underground sources requires energy consumption and surface water resources are limited and unstable.The aim of this research is managing optimal supply of required water of system with minimum energy cost and ...
PV array is increasingly employed for water pumping system. In this paper, the developed boost converter steps up the voltage produced by the PV array to a value which is suitable to run a single-phase induction motor. The inverter converts DC to AC is controlled by using sinusoidal pulse width modulation (SPWM) technique. By using a LCfilter the harmonics are eliminated and pure sine wave is o...
چکیده ندارد.
● view-driven mesh refinement / level-of-detail scheme with geomorphing ● ‘ambient’ (procedural) waves with dispersion property ● ‘interactive’ waves with dispersion property (which we believe is a technological first for games) ● real-time procedural normal maps, with distance-based cross-over into geometry ● optical effects including Fresnel reflectance, cloudy water, and refraction ● special...
The intent of this report is to provide the reader with infor mation useful for establishing a sewer system inventory and record system in his or her city. The major topic of this report is the collection of data relevant to storm sewers. However, because of the natural progression of Muncie’s inventory, emphasis will be given to the collection of data for sanitary and combination sewers. The ...
Fixed Sprinklers (Concealed or Pop-up) This type of system has not been used on golf courses because the makers have never been able to convince the golf clubs that these systems are practicable. Hence it is the specialized makers of golf course sprinkling equipment who are the first to develop concealed-fixed position sprinklers for golf courses. At this writing, "Billy" Bell is installing ele...
In this paper, a forced circulation solar water heater system is simulated for different hot water consumption profiles using flat plate collectors as well as evacuated tube collectors. The profiles studied are the actual samples of hot water consumption profiles for different commercial centers and institutions. Dynamic simulation outputs of system thermal performance are used as economic anal...
Background and purpose: Heterotrophic plate count (HPC) is commonly used to assess the general microbiological quality of drinking water. HPC must be less than 500 colonies per milliliter in drinking water. The aim of this study was to compare the heterotrophic bacteria of bottled water and drinking water distribution system and their relationship with water quality parameters. Materials and m...
Introduction: Corrosion and scaling of water in distribution systems in spite of imposing economic and aesthetic problems can lead to adverse effects on consumers' health. The present study was conducted to evaluate the corrosion and scaling of water distribution system of Sarableh city (Ilam, Iran) during summer and winter seasons in 2014. Materials and methods: Totally, 60 samples of wate...
The present paper deals with development of a simulation model for the performance evaluation of feed water system of a thermal power plant using Markov Birth-Death process and probabilistic approach. In present paper, the feed water system consists of four subsystems. After drawing transition diagram for feed water system, differential equations are developed and then solved recursively using ...
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