scholarly journals The feasibility of using solar powered submersible pumps in the State of Kuwait: جَدوى استخدام المَضَخات الغَاطسة العاملة بِالطَاقة الشمْسِية بِدولة الكويت

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Abdularhman Musaed Abdulrahman Albannai
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Intermediate Stage ◽  
Digital Voltmeter ◽  
The State ◽  
External Energy ◽  
Measuring Device ◽  
The State Of Kuwait ◽  
Solar Powered ◽  
Temporal Factor

The research aims to study the extent of the possible benefit from the solar fall falling in the state of Kuwait to operate submersible type pumps and to show the rate of flow of these pumps according to the change of solar radiation taking into account the spatial and temporal factor. The abundance of the area in southern Kuwait was chosen because there is good brightness for this area underground at different depths. As for the temporal factor, the timing of the transition was chosen between two important seasons that start from mid-January to mid-March, which is the period during which the brightness of the sun moves from the intermediate stage to the full brightness stage. The experimental study showed that the pump passes through two stages, the first of which is not operating and responding For the process of drawing if the solar radiation falling on the panels is less than 225 W/ m2, and the second stage occurs a response and operation of the pump gradually if the falling solar radiation is higher than the previous value, as the study showed that there is a large amount of external energy that is not exploited at some times of the day, especially in Sunny days, where the proportions decreased from 4.8 l/ 1000 watt to 1.5 l/ 1000 watt with an increase in the amount of energy from 430 w/ m 2 to 1005 w T/ m 2 The amount of flow fluctuated during the days of the study due to the differences in the sun's brightness and climate change, and the study was conducted using a method of taking periodic, daily and instant measurements, to determine the amount of energy and flow by using a solar radiation measuring device with a storage memory, which is a device for one of the companies that install solar energy panels And easily traded and other devices such as digital voltmeter and clip meter and water meter, the study concluded that the use of submersible pumps powered by solar energy with the presence of special characteristics such as the pump capacity, water depth and degree of brightness.

Modeling and Analysis of Solar Energy Collected by High Altitude Solar UAV’s Surface

2014 ◽  
Vol 644-650 ◽  
pp. 234-237
Author(s):  
Yi Zhang ◽  
Long Bin Liu ◽  
Dong Xu Liu
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Infrared Light ◽  
Total Power ◽  
Solar Panels ◽  
Radiation Model ◽  
Modeling And Analysis ◽  
Aircraft Model ◽  
Solar Radiation Model ◽  
Solar Powered

This paper proposed a numerical model to investigate the characteristics of solar energy collected by the UAV’s surface in different flight conditions. The novel model consists of a solar radiation model and a solar-powered aircraft model. The solar radiation model describes the process of the sunlight (including visible and infrared light) reaching the surface of the panels, and key effective factors are included. The solar-powered aircraft model describes a conventional layout fixed wing aircraft model with solar panels on the upper surface of the wing. The whole model was solved numerically by a computer program developed with C language to calculate the total power that the panels absorbed under different conditions. The visual and numerical results were presented and discussed in details.

Solar Power as a Source of Ecologically Sustainable Growth in Rajasthan

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Pallavi Pathak ◽  
Abhijeet Singh
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
State Government ◽  
Manufacturing Industry ◽  
Solar Power ◽  
The State ◽  
Sustainable Growth ◽  
Raw Material ◽  
Social Infrastructure ◽  
The Government

This paper highlights how factors which were once considered curse for Rajasthan have turned into boon. Two critical resources that are essential to solar power production namely high level of solar radiation per square inch and large amounts of contiguous, relatively flat, undeveloped land is abundant there. In order to tap the huge potential of Rajasthan for solar energy, the state government has constituted a separate entity, Rajasthan Solar Park Development Company Limited, for better development and management of solar parks. Solar industry is expected to be an economic engine in Rajasthan creating jobs across the State and spur billions in economic growth and tax revenue along with powering remotely connected households. Barmer, Bikaner, Jaisalmer and Jodhpur are the key regions with best solar radiation in the State. Seeing the market attractiveness the State has stimulated interest among several developers to commit a pipeline of generation projects. Rajasthan has highest allocation of projects including both Solar Photovoltaic and Concentrated Solar Power under Phase I of National Solar Mission. Rajasthan has competitive advantage based on the availability of relatively low cost land for industrial use. Adequate availability of electricity enables the development of solar manufacturing industry, which is energy intensive. The State has a comparative advantage on labor cost compared to its peer states. Proximity to NCR helps in access to industrial labor and managerial talent. Rajasthan has excellent proximity to end user market as well as supplier base for raw material, providing logistics cost advantage as well. The State has excellent medical facilities, it has a peaceful environment, good social infrastructure and strong tourism brand thus providing better quality of life. The new investor friendly Solar Policy aims to establish Rajasthan as a national leader in solar energy in phased manner by creating the policy frame work for promoting use of solar energy in various applications. Various incentives provided under the policy by the State Government include exemption from electricity duty, grant of incentives available to industries and availability of water for power generation. The Government has also announced special scheme for setting up of new enterprise, expansion, modernization and diversification, and projects set-up for common social good. Various Subsidies and Exemption from Taxes under various categories of investment are also being provided

The results of the study of the workers’ health according to the survey

2020 ◽  
pp. 793-793
Author(s):  
M. A. Fesenko ◽  
E. V. Zueva ◽  
E. V. Fedorova
Keyword(s):  
Medical Research ◽  
Working Conditions ◽  
Intermediate Stage ◽  
The State

The possibility of using the survey as an intermediate stage of assessing the state of working conditions and health of workers. It is concluded that this method is not applicable as an independent device but can be used with other methods of medical research.

scholarly journals Detrended Multiple Cross-Correlation Coefficient applied to solar radiation, air temperature and relative humidity

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Andrea de Almeida Brito ◽  
Heráclio Alves de Araújo ◽  
Gilney Figueira Zebende
Keyword(s):  
Relative Humidity ◽  
Solar Radiation ◽  
Solar Energy ◽  
Correlation Coefficient ◽  
Air Temperature ◽  
Cross Correlation ◽  
Global Solar Radiation ◽  
Meteorological Variables ◽  
Hourly Data ◽  
Cross Correlations

AbstractDue to the importance of generating energy sustainably, with the Sun being a large solar power plant for the Earth, we study the cross-correlations between the main meteorological variables (global solar radiation, air temperature, and relative air humidity) from a global cross-correlation perspective to efficiently capture solar energy. This is done initially between pairs of these variables, with the Detrended Cross-Correlation Coefficient, ρDCCA, and subsequently with the recently developed Multiple Detrended Cross-Correlation Coefficient, $${\boldsymbol{DM}}{{\boldsymbol{C}}}_{{\bf{x}}}^{{\bf{2}}}$$DMCx2. We use the hourly data from three meteorological stations of the Brazilian Institute of Meteorology located in the state of Bahia (Brazil). Initially, with the original data, we set up a color map for each variable to show the time dynamics. After, ρDCCA was calculated, thus obtaining a positive value between the global solar radiation and air temperature, and a negative value between the global solar radiation and air relative humidity, for all time scales. Finally, for the first time, was applied $${\boldsymbol{DM}}{{\boldsymbol{C}}}_{{\bf{x}}}^{{\bf{2}}}$$DMCx2 to analyze cross-correlations between three meteorological variables at the same time. On taking the global radiation as the dependent variable, and assuming that $${\boldsymbol{DM}}{{\boldsymbol{C}}}_{{\bf{x}}}^{{\bf{2}}}={\bf{1}}$$DMCx2=1 (which varies from 0 to 1) is the ideal value for the capture of solar energy, our analysis finds some patterns (differences) involving these meteorological stations with a high intensity of annual solar radiation.

scholarly journals Air Quality Assessment in the State of Kuwait during 2012 to 2017

Atmosphere ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 678
Author(s):  
Adeeba Al-Hurban ◽  
Sawsan Khader ◽  
Ahmad Alsaber ◽  
Jiazhu Pan
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Meteorological Factors ◽  
Ambient Air ◽  
The State ◽  
Ambient Air Pollution ◽  
Northeast Monsoon ◽  
Residential Areas ◽  
Industrial Areas ◽  
The State Of Kuwait

This study aimed to examine the trend of ambient air pollution (i.e., ozone (O3), nitrogen monoxide (NO), nitrogen dioxide (NO2), nitrogen oxides (NOx), sulfur dioxide (SO2), carbon monoxide (CO), benzene (C6H6) and particulate matter with an aerodynamic diameter smaller than 10 microns (PM10), and non-methane hydrocarbons (NMHCs) at 10 monitoring stations located in the main residential and industrial areas in the State of Kuwait over 6 years (2012–2017). We found that the SO2 level in industrial areas (0.065 ppm) exceeded the allowable range of SO2 in residential areas (0.030 ppm). Air pollution variables were defined by the Environmental Public Authority of Kuwait (K-EPA). In this study, integrated statistical analysis was performed to compare an established air pollution database to Kuwait Ambient Air Quality Guidelines and to determine the association between pollutants and meteorological factors. All pollutants were positively correlated, with the exception of most pollutants and PM10 and O3. Meteorological factors, i.e., the ambient temperature, wind speed and humidity, were also significantly associated with the above pollutants. Spatial distribution mapping indicated that the PM10 level remained high during the southwest monsoon (the hot and dry season), while the CO level was high during the northeast monsoon (the wet season). The NO2 and O3 levels were high during the first intermonsoon season.

scholarly journals The role of L/W in the solar radiation for Saharian cities

2019 ◽  
Vol 91 ◽  
pp. 05006
Author(s):  
Rami Qaoud ◽  
Alkama Djamal
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Energy Levels ◽  
Direct Solar Radiation ◽  
Test Field ◽  
Natural Lighting ◽  
The Difference ◽  
The Impact ◽  
The Relationship

The urban fabric of the desert cities is based on the principle of reducing the impact of urban canyons on direct solar radiation. Here comes this research, which is based on a comparative study of the periods of direct solarisation and values of the solar energy of urban canyons via two urban fabrics that have different building densities, where the ratio between L/W is different. In order to obtain the real values of the solar energy (thermal, lighting), the test field was examined every two hours, each three consecutive days. The measurement stations are positioned by the three types of the relationship between L/W, (L≥2w, L=w, L≤0.5w). According to the results, we noticed and recorded the difference in the periods of direct solarization between the types of urban engineering canyons, reaching 6 hours a day, the difference in thermal values of air, reaching 4 °C, and the difference in periods of direct natural lighting, reaching 6 hours. It should be noted that the role of the relationship between L/W is to protect the urban canyons by reducing the impact of direct solar radiation on urban canyons, providing longer hours of shading, and reducing solar energy levels (thermal, lighting) at the urban canyons. This research is classified under the research axis (the studies of external spaces in the urban environment according to the bioclimatic approach and geographic approach). But this research aims to focus on the tracking and studying the distribution of the solar radiation - thermal radiation and lighting radiation - in different types of street canyons by comparing the study of the direct solarization periods of each type and the quantity of solar energy collected during the solarization periods.

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