scholarly journals Chlorine production for water disinfection by the means of photovoltaic panels

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Stanislav Hostin ◽  
Peter Benedikovič ◽  
Anna Michalíková
Keyword(s):  
Solar Energy ◽  
Electrical Power ◽  
Power Source ◽  
Water Disinfection ◽  
Experimental Device ◽  
Photovoltaic Panel ◽  
Photovoltaic Panels ◽  
Electrochemical Production

In this contribution a possibility of electrochemical production of chlorine for water disinfection, by using photovoltaic panels from solar energy, is described. A simple way of chloride production by means of a photovoltaic panel, comparable with classical electrical power source was performed on an experimental device. By using photovoltaic panel with nominal output 50 W and solar irrigation 380 – 550 W/m2 chlorine production was 0.3 mg/min, which represents amount of chlorine sufficient for disinfections of approximately 4000 l water per day.

DIFFERENCES IN THE CONCENTRATION OF SOLAR ENERGY INVESTMENTS USING PHOTOVOLTAIC PANELS AND SOLAR COLLECTORS IN LUBELSKIE AND MAZOWIECKIE VOIVODSHIPS’ MUNICIPALITIES

2018 ◽  
Vol XX (1) ◽  
pp. 73-80 ◽  
Author(s):  
Anna Maria Klepacka
Keyword(s):  
Solar Energy ◽  
Rural Development ◽  
Solar Collector ◽  
Renewable Energy Sources ◽  
Development Program ◽  
Solar Collectors ◽  
Photovoltaic Panel ◽  
Photovoltaic Panels ◽  
Percentage Share ◽  
Total Capacity

The paper emphasizes the differences in the concentration of investments with the use of photovoltaic panels and solar collectors in voivodships with significant potential for using solar energy. The subject of the paper addresses, among others, the significant changes in renewable energy sources (RES) and EU subsidies that affect the economics of solar micro-installations in Poland. The study applied data from the Ministry of Agriculture and Rural Development, which included completed operations under the rural development program (RDP) for the period 2007-2013. The percentage share of the number of photovoltaic panel installations in Lubelskie and Mazowieckie Voivodships constituted 22% of that type of investments in the country (13% and 9% respectively, with a total capacity of 2,634 kW). However, in the case of the number of solar collector installations, the percentage share in Lubelskie and Mazowieckie Voivodships accounted for 44% of such installations in Poland (29% and 15%, respectively, with a total capacity of 4,239 kW). The results confirm the view that the location is an important determinant of photovoltaic panel and solar collector installations in Poland as shown in the examined voivodships characterized by the favorable solar radiation conditions.

Design of Vehicle-Mounted Solar Photovoltaic Panels System that Change Orientation with the Light

2014 ◽  
Vol 1037 ◽  
pp. 232-235
Author(s):  
Juan Lei ◽  
Hong Xia Wu
Keyword(s):  
Solar Energy ◽  
Solar Photovoltaic ◽  
The Sun ◽  
Ambient Light ◽  
Direct Sunlight ◽  
Light Detection ◽  
Fossil Energy ◽  
Photovoltaic Panel ◽  
Photovoltaic Panels ◽  
Change Orientation

Along with the lack gradually of fossil energy,people began to pay attention to the using of solar energy that easy to obtain and no pollution. Today,a lot of vehicle-mounted systems have begin to use solar photovoltaic panels.But with the driving of vehicle, photovoltaic panels often can’t face to the sun ,unable to get enough direct sunlight. In order to change the fact,writer designed a new system.In this system, we use ambient light detection module and MCU to locate the sun,then MCU controls two motors to make the photovoltaic panel change its orientation,so vehicle-mounted solar photovoltaic panel can change orientation automatically with the light.

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

Achieving steam and electrical power from solar energy by MoS2-based composites

2021 ◽  
pp. 131008
Author(s):  
Zhenzhen Guo ◽  
Jun Wang ◽  
Yifei Wang ◽  
Jianying Wang ◽  
Jinhua Li ◽  
...  
Keyword(s):  
Solar Energy ◽  
Electrical Power

scholarly journals A flexible In-Plane p-n heterojunction nano-generator with phonon-enhanced Photothermoelectric Effect to harvest solar energy

2021 ◽  
Author(s):  
HeWu Zhou ◽  
Panmeng Meng ◽  
Yang LIn ◽  
Zihao Chen ◽  
Yanjie Zhao ◽  
...  
Keyword(s):  
Solar Energy ◽  
Power Source ◽  
Infrared Light ◽  
Induced Voltage ◽  
Voltage Output

Photothermoelectric (PTE) devices show a promising prospect for realizing photo-induced voltage output using infrared light, which can meet the crucial requirement for photo detector and power source. However, limited utilization...

scholarly journals Electrical system design of solar powered electrical recreational boat for Indonesian waters

2018 ◽  
Vol 67 ◽  
pp. 04011
Author(s):  
Sunaryo Sunaryo ◽  
Adri Wirawan Ramadhani
Keyword(s):  
Solar Energy ◽  
Fossil Fuel ◽  
Electrical Power ◽  
Electrical Energy ◽  
Green Energy ◽  
Solar Panels ◽  
Electrical System ◽  
Literature Study ◽  
The Government ◽  
Solar Powered

Indonesia has more than 17,000 islands and has plenty of beautiful beaches and underwater spots which have great potential for maritime tourism. Tourism was ranked 3rd on Indonesia's foreign income and plays an important role for the country’s ecomony. Despite having potential advantages, the government has not yet maximized its efforts to develop the attractiveness of its maritime tourism. Beside the beautiful spots Indonesia is also blessed with all year long sun shine, which could be tapped as renewable and green energy as substitution to fossil fuel. Refer to these great advantages of natural resources the research was aimed to support the government’s program in developing its maritime tourism and to promote the use of green and renewable energy by designing a solar-powered tourism recreational boat which has 12 meters of length. The paper is focused on the design of solar energy and its electrical system, which includes conversion of solar energy to electrical energy and store it in the battery, the required electrical power is also predicted based on the appliances and equipment installed in the boat, the optimum attachment of solar panels on the boat structure is also calculated. All the methods and information we use are obtained from literature study, discussion with experts, and surveys to Jagur as solar-powered electric boat from Universitas Indonesia.

scholarly journals SOLAR RADIATION PROTECTION SYSTEM WITH SIMULTANEOUS HOT WATER SUPPLY

2020 ◽  
Author(s):  
І. Puhoviy ◽  
М. Makhrov
Keyword(s):  
Solar Energy ◽  
Energy Savings ◽  
Electrical Power ◽  
Warm Season ◽  
Hot Water ◽  
Air Conditioner ◽  
Domestic Water ◽  
Environmental Friendliness ◽  
Additional Advantage ◽  
The Cost

Problems. Windows in the summer let through a large amount of solar energy into the room, which causes an additional cost of cooling the air by conditioning. It is known that the limit of comfort is the temperature of 26 oC. To reduce the temperature, use air conditioners, which are required 0,3...0,5 kW of electrical power for 10 m2 of housing. The study deals with the capture of solar energy by water and its use for domestic water purposes (DHW). The goal of the research. Experimental verification of patented developments and calculations of hot water quantity obtained per day, energy savings and economic indicators. Methods of implementation. Experiments were conducted on the south window of the room, with water pumping by a pump and periodic measurement of air and water temperatures at the outlet of the system by mercury thermometer. The calculations were performed using the methods developed by the authors. The studies were conducted within three days of November. The temperature inside ranged a room from 19 to 23 °C. The system was operated in circulating mode on a water battery tank located below the absorber. Isolation of the absorber from the side of the room was made of a transparent food film. Research results. Water temperature reached 45 °C per 1,5-2 hours. Water consumption is enhanced by the thermosiphon effect when water moves from the bottom up. On a clear day of spring and autumn, you can heat for 50-70 % more water than the average for the average day of months of the warm season. For preparing DHW with 1 m2 of absorber, it is possible to get 45-50 kW∙h of heat for each month from March to September, taking into account cloudiness. The savings from the use of hot water and from reducing the consumption of electricity in the air conditioner are calculated. Conclusions. The payback period of the system, taking into account the cost of the heat for DHW and electricity savings for an electric air conditioner, is approximately 4-5 years. The cost of the system is close to the cost of a home air conditioner, for a premise with a single window oriented south. To the energy-saving factor, an additional advantage is the environmental friendliness of the system compared to the air conditioner.

Investigation and Optimization of Power Based Smart Home Module Integrated with Automatic Solar Tracking System and MPPT Technique

2019 ◽  
Vol 889 ◽  
pp. 526-532
Author(s):  
Thai Viet Dang ◽  
Si Thong Dinh ◽  
Xuan Toi Bui
Keyword(s):  
Solar Cell ◽  
Solar Energy ◽  
Power Consumption ◽  
Power Systems ◽  
Tracking System ◽  
Electrical Power ◽  
Research Result ◽  
Electrical Energy ◽  
Cell System ◽  
Power Sources

Currently, the world has a lot of research and practical application of intelligent building systems integrated with intelligent power systems. Because Vietnam is a country with potential for solar energy, the integrator of solar energy is being strongly developed. However, the research result of the optimization of electrical energy used by the intelligent type solar integration is rare. This paper presents the design and structure of the module of intelligent control and monitoring via wireless network integrated with the automatic solar concentration system. The system allows easy connection and operation of all electrical power sources including the dispersal solar power to ensure the efficient and lower power consumption. In addition, the solar cell system is applied the Maximum Power Point Tracking technique (MPPT), which helps to stabilize and improve the power generation efficiency of the PV panels. The test results on the module showed absorption performance of automatic solar-cell flat plate systems is raised by 20-30% and power consumption in small households reduced approximately 30%.

scholarly journals A Hybrid Maximum Power Point Search Method Using Temperature Measurements in Partial Shading Conditions

2014 ◽  
Vol 21 (4) ◽  
pp. 733-740 ◽  
Author(s):  
Janusz Mroczka ◽  
Mariusz Ostrowski
Keyword(s):  
Solar Panel ◽  
Maximum Power ◽  
Global Maximum ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Decision Algorithm ◽  
Photovoltaic Panel ◽  
Photovoltaic Panels ◽  
Local Maxima ◽  
Power Point

Abstract Photovoltaic panels have a non-linear current-voltage characteristics to produce the maximum power at only one point called the maximum power point. In the case of the uniform illumination a single solar panel shows only one maximum power, which is also the global maximum power point. In the case an irregularly illuminated photovoltaic panel many local maxima on the power-voltage curve can be observed and only one of them is the global maximum. The proposed algorithm detects whether a solar panel is in the uniform insolation conditions. Then an appropriate strategy of tracking the maximum power point is taken using a decision algorithm. The proposed method is simulated in the environment created by the authors, which allows to stimulate photovoltaic panels in real conditions of lighting, temperature and shading.

scholarly journals Energy Saving and GHG Emission Reduction in a Micro-CCHP System by Use of Solar Energy

2012 ◽  
Vol 10 (1) ◽  
pp. 16-20 ◽  
Author(s):  
Ion V. Ion ◽  
Gheorghe Ciocea ◽  
Florin Popescu
Keyword(s):  
Solar Energy ◽  
Energy Saving ◽  
Cost Reduction ◽  
Greenhouse Gas Emission ◽  
Hot Water ◽  
Solar Collectors ◽  
Ghg Emission ◽  
Photovoltaic Panels ◽  
Heat Demand ◽  
Heating Boiler

Abstract In this work, the reduction of greenhouse gas emission, and the energy saving by integrating solar collectors and photovoltaic panels in a Stirling engine based microcombined cooling, heating and power (mCCHP) system are studied. The mCCHP system consists of a natural gas Stirling CHP and an adsorber chiller. When the thermal outputs of the Stirling CHP and solar collectors are not sufficient to cover the heat demand for domestic hot water (DHW), heating/cooling, an auxiliary heating boiler starts to operate. The energy saving by using solar energy varies from 13.35% in December to 59.62% in April, in the case of solar collectors usage and from 7.47% in December to 28.27% in July, in the case of photovoltaic panels usage. By using solar energy the annual GHG emission decreases by 31.98% and the fuel cost reduction varies from 12.73% in December to 49.78% in June.

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