Готові списки джерел за темами / SOLAR-ASSISTED METHOD

Добірка наукової літератури з теми "SOLAR-ASSISTED METHOD"

Автор: Grafiati

Опубліковано: 11 вересня 2023

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Статті в журналах з теми "SOLAR-ASSISTED METHOD"

Ning, Xiaolin, Mingzhen Gui, Jie Zhang, Jiancheng Fang, and Gang Liu. "Solar oscillation time delay measurement assisted celestial navigation method." Acta Astronautica 134 (May 2017): 152–58. http://dx.doi.org/10.1016/j.actaastro.2017.01.039.

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Zhu, Pengchen, Chuanlu Chen, Shuai Gu, Renxing Lin, and Jia Zhu. "CsSnI3 Solar Cells via an Evaporation-Assisted Solution Method." Solar RRL 2, no. 4 (February 19, 2018): 1700224. http://dx.doi.org/10.1002/solr.201700224.

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Top, Vildan, İsmail Tontul, and Selman Türker. "Güneş Enerjisi Destekli Kurutma Yöntemlerinin Gıda Endüstrisinde Kullanımı." Turkish Journal of Agriculture - Food Science and Technology 7, no. 8 (August 9, 2019): 1100. http://dx.doi.org/10.24925/turjaf.v7i8.1100-1112.2121.

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Dried products are widely used from the past because of their long shelf life, rich nutrient content and availability. Solar or shade drying methods have become the most widely used drying technique from past to date, due to no equipment requirement, cost and simplicity. However, this drying method has some disadvantages such as long drying time, contamination risk and requirement of large area and heavy labor. In this review, various drying methods applied in food are summarized. Then, solar energy assisted drying methods were examined in detail. Finally, solar energy-assisted drying methods involving energy storage are examined. Solar energy assisted drying is a very advantageous technique for economical production. The most important advantages of this technique are that the system can be designed in many different ways in order to provide the desired characteristics. In addition, the availability of various energy storage units contributes to the availability of the system.

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Kraemer, Daniel, Anurag Bajpayee, Andy Muto, Vincent Berube, and Matteo Chiesa. "Solar assisted method for recovery of bitumen from oil sand." Applied Energy 86, no. 9 (September 2009): 1437–41. http://dx.doi.org/10.1016/j.apenergy.2008.12.003.

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Huang, B. J., and C. P. Lee. "Performance evaluation method of solar-assisted heat pump water heater." Applied Thermal Engineering 27, no. 2-3 (February 2007): 568–75. http://dx.doi.org/10.1016/j.applthermaleng.2006.06.005.

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Zhang, Xi Ming, and Xue Li. "Gravimetric Method for Calibrating Flow Meter." Applied Mechanics and Materials 501-504 (January 2014): 2335–37. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.2335.

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What the earth obtain the energy annually is ten thousand times of the earth energy consumption at present,but the solar energy has a lower energy density on the earth’s surface .solar energy is the main source of all energy The experimental research was conducted for the heating performance utilizing the solar-assisted heat pump experimental platform. Experimental errors will be caused to flow meter by different measured media and long time usage In order to improve measurement precision and reduce the experimental errors, this test use gravimetric method to calibrate the LZB glass rotor meter and MCE08-787 cumulative flow meter of indoors and outdoors pipes. The paper also presents flow correction coefficient to guarantee both the accuracy and reliability of the experimental results.

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Boopathi, Karunakara Moorthy, Mohan Ramesh, Packiyaraj Perumal, Yu-Ching Huang, Cheng-Si Tsao, Yang-Fang Chen, Chih-Hao Lee, and Chih-Wei Chu. "Preparation of metal halide perovskite solar cells through a liquid droplet assisted method." Journal of Materials Chemistry A 3, no. 17 (2015): 9257–63. http://dx.doi.org/10.1039/c4ta06392a.

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Zhai, Rongrong, Lingjie Feng, Hai Yu, Chao Li, and Yongping Yang. "Optimization of Dispatching Electricity Market with Consideration of a Solar-Assisted Coal-Fired Power Generation System." Energies 12, no. 7 (April 3, 2019): 1284. http://dx.doi.org/10.3390/en12071284.

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This study investigates the multi-objective optimization of load dispatch of a solar-assisted coal-fired power generation system. The improved environmental/economic load dispatch model considers coal consumption, NOx emissions, and power purchase cost. The singular weighted method is utilized to solve this multi-objective and multi-constraint optimization problem. A power system that includes five power generators, one of which is retrofitted to a solar-assisted coal-fired unit, is also analyzed. It can be concluded that the loads of solar-assisted coal-fired units are higher than the original coal-fired unit, and with the increase of solar radiation, the gap between the loads of two units also increases. In addition, after retrofitting, the coal consumption, the NOx emission, and power costs of units reduce by about 2.05%, 0.45%, and 0.14%, respectively. From the study on the on-grid power tariff, where the tariff drops from 16.29 cents/kWh to 3.26 cents/kWh, NOx emissions drop from 12.31 t to 11.28 t per day, a reduction of about 8.38%. The cost of purchasing electricity decreases from $ 2,982,161.8 to $ 2,020,505.0 per day, a decrease of 32.25%. Therefore, when both coal-fired units and solar-assisted coal-fired units exist in a region, the use of solar-assisted coal-fired power generation units should be prioritized.

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Yu, Yuan, Meijia Shang, Tao Wang, Qian Zhou, Yuying Hao, Zhiyong Pang, Deliang Cui, Gang Lian, Xijian Zhang, and Shenghao Han. "All-round performance improvement of semitransparent perovskite solar cells by a pressure-assisted method." Journal of Materials Chemistry C 9, no. 42 (2021): 15056–64. http://dx.doi.org/10.1039/d1tc04067g.

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A pressure-assisted method was used to achieve a remarkable enhancement in the crystallinity and flatness of ultra-thin MAPbI3 films. This process facilitates an all-round improvement in the photoelectric and optical properties of solar cells.

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Ozgener, Onder, and Arif Hepbasli. "An Economical Analysis on a Solar Greenhouse Integrated Solar Assisted Geothermal Heat Pump System." Journal of Energy Resources Technology 128, no. 1 (July 27, 2005): 28–34. http://dx.doi.org/10.1115/1.2126984.

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The main objective in doing the present study is twofold, namely (i) to review briefly the utilization of geothermally heated greenhouses and geothermal heat pumps in Turkey, since the system studied utilizes both renewable energy resources and (ii) to present the Analytical Hierarchy Process (AHP) as a potential decision making method for use in a greenhouse integrated solar assisted geothermal heat pump system (GISAGHPS), which was installed in the Solar Energy Institute of Ege University, Izmir, Turkey. This investigation may also be regarded as the one of the limited studies on the application of the AHP method to GISAGHPs, as no studies on the GISAGHPS have appeared in the literature. In this context, an economic analysis is performed based on the life cycle costing technique first. The results are then evaluated by applying the AHP method to a study, which is a comparative study on the GISAGHPS and split system. The results indicated that the GISAGHPS is economically preferable to the conventional split heating/cooling system under Turkey’s conditions.

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Більше джерел

Дисертації з теми "SOLAR-ASSISTED METHOD"

Perumal, Rajkumar. "Comparative performance of solar cabinet, vacuum assisted solar and open sun drying methods." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18283.

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Tomato (Lycopersicon esculentum L.var) is one of the most important vegetables in our diet and dried tomato products are becoming popular for the preparation of various food items. Though sun drying has been used for the preservation, it is a slow process and the quality of the dried product is often inferior due to contaminations. Therefore, a lab model solar cabinet and vacuum assisted solar dryers were developed to study the drying kinetics of tomato slices (4, 6 and 8 mm thicknesses) and the results were compared individually with open sun drying under the weather conditions of Montreal, Canada. The drying kinetics using thin layer drying models and the influence of weather parameters such as ambient air temperature, relative humidity, solar insolation and wind velocity on drying of tomato slices were evaluated. During drying, it was observed that the temperatures inside the solar cabinet and vacuum chamber were increased to 63 and 48oC when the maximum ambient temperature was only 30oC. The tomato slices of 4, 6 and 8 mm thicknesses could be dried from 94.0 to 11.5% wet basis moisture content, respectively in 300, 420 and 570 min using solar cabinet, in 360, 480 and 600 min using vacuum assisted solar dryer and it took 435, 615 and 735 min under open sun drying method. The quality of tomato slices in terms of physicochemical parameters such as colour retention, water activity, rehydration capacity and ascorbic acid retention were evaluated and the overall study concluded that good quality dehydrated tomato slices could be produced by using vacuum assisted solar dryer compared to solar cabinet and open sun drying methods. The Page model was found to be better in describing the drying kinetics of tomato slices in all the drying methods studied.
La tomate (Lycopersicon esculentum L. var) est une importante source nutritive de notre alimentation et les tomates séchées gagnent en popularité dans de nombreuses préparations alimentaires. Le séchage naturel est la méthode traditionnelle utilisée pour la production de tomates séchées, cependant c’est un processus lent et la qualité du produit séché est variable et sujette à la contamination. Un séchoir solaire et un séchoir solaire sous-vide furent donc développés afin d’étudier le séchage solaire de tranches de tomates (4, 6 et 8 mm d’épaisseur) en comparaison au séchage naturel sous les conditions météorologiques de Montréal, Canada. La cinétique du séchage des tranches de tomates suivant des modèles en couches minces a été établie en fonction de l’influence des conditions météorologiques telles que la température ambiante, l’humidité relative, le rayonnement solaire et la vitesse du vent. Lors du séchage dans le séchoir solaire et le séchoir solaire sous-vide, la température interne des deux séchoirs a atteint 63° et 48°C respectivement alors que la température ambiante était de 30°C. Les tranches de tomates de 4, 6 et 8 mm d’épaisseur ont pu être séchées d’un taux d’humidité de 94% à 11.5% (état humide) et ce après 300, 420 et 570 minutes en utilisant le séchoir solaire, en 360, 480 et 600 minutes grâce au séchoir solaire sous-vide, alors qu’il en a pris 435, 615 et 735 minutes par séchage naturel. La qualité des tranches de tomates a été évaluée en fonction de certains paramètres physico-chimiques tels que la stabilité de la couleur, l’activité de l’eau, la capacité de réhydratation, et la conservation de l’acide ascorbique. Des tranches de tomates séchées de meilleure qualité peuvent être produites par séchage solaire sous-vide en comparaison avec le séchage solaire et le séchage naturel. La modélisation de Page offre une très bonne représentation$

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MANISHA. "AN EXPERIMENTAL ANALYSIS OF SOLAR ASSISTED BIO DIESEL PRODUCTION FROM COTTON SEED OIL." Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15218.

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Due to the depletion of fossil fuel energy sources, new alternative energy sources are becoming dominant in our society. Biodiesel has been recognized as an alternative for depleting petro-fuels since it is produced mainly from edible and non-edible oils, is a clean, renewable resource, and is non-toxic. Transesterification is the most commonly used process for synthesis of biodiesel. The synthesis of biodiesel involves heating a triglyceride with methanol in presence of catalyst. In this project, Biodiesel was produced by using cotton seed oil and potassium hydroxide (KOH) as catalyst. The conversion yield was maximized using Taguchi’s method of optimization. This method was adequate for calculating the effect of control parameters and it also optimizes the experiment work with limited number of experiments. After performing conventional method of biodiesel production, solar assisted transesterification was used in which thermal energy of solar irradiation was utilized for chemical heating process in biodiesel synthesis. A small parabolic solar reflector was used for utilizing solar energy. At last, Results were compared for both conventional and solar-assisted method of biodiesel production. It was concluded that the quality and conversion yield of biodiesel produced from solar-assisted method is better even when there is no requirement of mechanical stirring in this method.

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Huang, Chi-Hui, and 黃旂慧. "Solar Cells Applications of Water-soluble CdTe Quantum Dots Derived from Microwave-Assisted Hydrothermal Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/23596777344363249718.

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碩士
國立交通大學
應用化學系碩博士班
100
Quantum dots are interesting materials for application in efficiency enhancement of solar cells, mainly because of their unique optical properties, including size-dependent emission wavelengths, narrow emission profiles, and photostability. We made attempts to utilize microwave-assisted hydrothermal synthesis to prepare water-soluble CdTe QDs with different thiol containing ligands as capping reagents. Our method was able to synthesize green to infrared-emitting CdTe QDs with high speed. This thesis focuses on the preparation, characterizations, and applications of water soluble CdTe quantum dots. Using UV-visible absorbance and photoluminescence measurements, powder X-ray diffraction, TEM image, the optical and structural properities of CdTe quantum dots were explored. Through surface amido or carboxyl functional groups, GSH/CdTe QDs can be conjugated with folic acid for cell imaging, demonstrating their potentially broad application as biolabels. On the other hand, the CdTe@SiO2 on Si surface of solar cells are demonstrated to have promising potential for efficient solar spectral conversion in crystalline Si-based solar cells.

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Lee, Ching-Po, and 李璟柏. "Study of Design Improvement and Evaluation Method of Integral-Type Solar Assisted Heat Pump Water Heater." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/81581839349190248271.

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博士
國立臺灣大學
機械工程學研究所
93
The conventional solar water heater can not be installed on rooftop and consumes a lot of electricity during cloudy or rainy days by backup heater. The integral-type solar-assisted heat pump water heater (ISAHP) was thus developed in the present study in order to improve the defects of conventional solar water heater. ISAHP absorbs ambient heat and solar radiation simultaneously. Four types of different ISAHP designs are proposed and studied. Experimental results show that ISAHP consumes about half electricity of the conventional solar water heater. The installation capacity is about 4.5 times of conventional solar water heaters. To deal with the performance evaluation problem of ISAHP, the test method and test standard was studied. A semi-empirical model was derived from theoretical analysis and statistical analysis of test data. This model utilizes only the test data of ambient temperature, solar radiation, and water temperature in the storage tank to derive a correlation that can be used to evaluate the performance of various ISAHP designs. The test method requires to take 15 data points with the value of temperature difference between mean water temperature and average ambient temperature spread over evenly 5 to 15oC. The correlation will be not affected by seasonal effect from this criteria. The scattering effect of COP by the climatic variation will be reduced to minimal if a radiation ratio Rih for the first half and the last half test duration. A test standard is then suggested from this present study. It is suggested that a ISAHP will pass its performance if COP is larger than 2.2 at Tf -Ta,ave=10oC. For ISAHP to be utilized in foreign countries and for various ISAHP designs, the present study develops a computer simulation model for the performance analysis of ISAHP running at different weather conditions. The analysis provides important information for the design of ISAHP according to the location of application. The design analysis is used to investigate the performance of ISAHP at low ambient temperature and high solar radiation period.

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He, Yen-Kuan, and 何彥寬. "Zinc oxide microrods grown by electric field assisted hydrothermal method applications in dye-sensitized solar cell." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/jw9vjd.

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碩士
國立虎尾科技大學
電子工程系碩士班
103
The important aim of this paper is to study ZnO microrods was fabricated on -free seed layer fluorine-doped tin oxide (FTO) glass by electric field assisted hydrothermal. The properties of ZnO microrods were analyzed and application of a photoanode in dye-sensitized solar cell was discussed. During the preparation, we found that the zinc oxide micro structure is top narrow bottom width by preparing the aqueous solution at same mohr concentration of Zinc nitrate hexahydrate and hexamethylenetetramine ammonium. So we increasing double mohr concentration of Zinc nitrate hexahydrate in solution and the zinc oxide micron structure is typical hexagonal columnar structure. Simultaneously, we also found the zinc oxide micron columns change into a new type of conical micron pencil structure by the cooling time in the reactive solution, and the cone-like structure will be more obviously. At room temperature photoluminescence spectrum showed a strong ultraviolet emission and extensive green emission, and ZnO micron pencil still belong to a single crystal structure. We applied the electric field with different direction and strength for influenced the growth of ZnO microrods. The ZnO microrods surface morphology and that the growth rates were different while the electric field direction was different determined was observed by Field emission electron microscope (FE-SEM). The electric field strength 666kV / m enters the the substrate of zinc oxide with a long micronrod but the electric field strength 666kV / m enters the the substrate of zinc oxide. Followed by Docter blade of TiO2 nanoparticles(diameter of 25 nm) (NPs), on the ZnO microrods(MRs)surface. The TiO2 nanoparticles / ZnO microrods (NPs / MRs) of composite electrode was through mechanical pressure 420kg / cm2. The columnar structure of ZnO (MRs) as a light scattering layer and a channel for transmit rapidly the photoelectron. Light scattering layer can increase the path length of the incident of the incident light and enhances the collided probability between the incident light and TiO2 NPS. TiO2 NPS has large surface area to absorb dye and thus enhance the light current. Therefore, TiO2 NPS and ZnO MRs composite photo-anode can enhance the feature of dye-sensitized solar cell. The photoanode of dye-sensitized solar cell prepared by electric field 400kV / m enters substrate have a better IPCE value and the photoelectric conversion efficiency of 4.63%.

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InezSuciani and 白安妮. "Degradation of Azo Dye Orange G by Oxalate Assisted-Photo-Fenton Method Using UV-A and Solar Light Irradiation." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/mb2neg.

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碩士
國立成功大學
化學工程學系
107
Among various kind of AOPs, Fenton’s reagent has been known to be an effective method for degrading organic compounds which can be enhanced by light irradiation and oxalic acid (OA) addition, to be photo-ferrioxalate system. This study aims to examine the use of photo-ferrioxalate process in degradation of Orange-G (OG) azo dye, which is used widely in textile industries, by using UV-A and Solar-LED irradiation. In this study, 30 ppm of OG were treated using photo-ferrioxalate system. Operating variables included the initial iron concentration, initial H2O2 concentration, [OA]/[Fe3+] molar ratio, and light irradiation. The experimental results revealed that by using solar-LED light irradiation, complete color removal was possible, however only 47.50% TOC removal with TOC concentration of 9.04 ppm could be achieved after 420 min of reaction in the presence of 5 mg/L Fe3+, pHr= 5, 186 mg/L H2O2, and [OA]/[Fe3+] = 3. While by using UV-A light irradiation with the same parameter condition, higher TOC removal of 80.57% with TOC concentration of 4.16 ppm was obtained. Rate constant of OG degradation was calculated and it was found that OG decolorization followed a pseudo-first order kinetic model.

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BUDHRAJA, NEERAJ. "OPTIMIZATION OF SOLAR ASSISTED BIODIESEL PRODUCTION FROM LINSEED OIL." Thesis, 2018. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16309.

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The present explored crude oil reservoirs are depleting at a much faster rate than estimated at the end of 20th century. The higher energy demand for transportation, industrialization and luxurious life are the main consequences behind this fast rate depletion. To fulfill the everlasting demand of energy, we need to look for some alternative source of energy. Biodiesel being renewable and less polluting fuel can replace the conventional diesel fuel. But the higher energy and cost of biodiesel production is not allowing the industries to look biodiesel as a conventional diesel alternative. Thus, solar energy is implemented as heating source for transesterification process to reduce the cost of biodiesel production from conventional methods. This study focuses on optimizing the yield parameters based on the Taguchi’s approach, a powerful tool to maximize biodiesel yield. A full factorial design of 27 experiments, the signal-to-noise (S/N) ratio and analysis of variance (ANOVA) are employed to investigate the influence of yield parameters at different levels. The main objective of the study is to determine the effects of molar ratio, reaction time and catalyst concentration on the production of biodiesel from linseed oil. Different yield parameters have different influence on the production of biodiesel. The different levels for yield parameters recommended were 6:1, 7.5:1 and 9:1 for molar ratio; 90 min., 105 min. and 120 min. for reaction time; and 0.5 wt%, 0.75 wt% and 1.0 wt% for catalyst (KOH) concentration, respectively. The samples are processed under different level of parameters and percentage yield for each sample is measured. The result showed that the higher the molar ratio better the yield. The optimum yield parameters were 9:1 molar ratio, 105 min. reaction time and 0.5 wt% catalyst concentrations, which produced optimum yield of 82.48%. While the maximum yield of 82.82% is attained for molar ratio 9:1, reaction time 120 min. and catalyst concentration 0.75 wt%. According to the ANOVA analysis, molar ratio is the dominating factor with 63.01% contribution.

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Частини книг з теми "SOLAR-ASSISTED METHOD"

Zhang, Q., C. Zheng, K. Sagoe-Crentsil, and W. Duan. "Transfer and Substrate Effects on 2D Materials for Their Sensing and Energy Applications in Civil Engineering." In Lecture Notes in Civil Engineering, 409–19. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_42.

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AbstractThe recent emergence of two-dimensional (2D) materials such as graphene and transition metal dichalcogenides (TMDs) of the family (Mo, W)(S, Se)2 has attracted interest from a broad range of engineering applications, including advanced sensing and energy harvesting and conservation, because of their distinctive properties. However, it is critical important to achieve intact delamination and transfer of these atomically thin materials, as well as to understand the effects of the target substrates on their optical and electronic properties. Therefore, we developed and compared techniques for transferring as-grown WS2 crystals to arbitrary substrates. Polystyrene-assisted wet transfer can realize improved preservation of monolayer WS2 crystals than the commonly used poly(methyl methacrylate) (PMMA)-assisted wet transfer method, due to minimal chemical etching involved in the 2D material delamination process. The intercalation of alkali ions in the PMMA-based transfer method induces chemical doping over the transferred 2D crystals, leading to the formation of trions. Moreover, the edges of the crystals on hydrophilic substrates, such as sapphire or SiO2/Si, are subject to ambient water intercalation, which locally affects the photoluminescence behavior of the monolayer WS2 by doping and changing of the dielectric environment. This non-uniform optical behavior is absent when the crystal is transferred onto a hydrophobic substrate through which ambient water cannot penetrate. These results have important implications for the choice of target substrate and transfer method adopted for 2D TMD-based applications such as next-generation strain sensing, photodetectors, gas sensing, bio sensing, solar energy harvesting and radiative cooling in which uniform behavior of the channel material is required.

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Unterberger, Viktor, Thomas Nigitz, Mauro Luzzu, Daniel Muschick, and Markus Gölles. "Adaptive Methods for Energy Forecasting of Production and Demand of Solar-Assisted Heating Systems." In Contributions to Statistics, 287–99. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26036-1_20.

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Ning, Ke, and Guang Zhu. "Microwave-Assisted Chemical Bath Deposition Method for Quantum Dot-Sensitized Solar Cells." In Functional Nanomaterial for Photoenergy Conversion, 209–42. WORLD SCIENTIFIC, 2020. http://dx.doi.org/10.1142/9789811222405_0005.

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A. Lyakhov, Konstantin. "Some Features of Boron Isotopes Separation by Laser-Assisted Retardation of Condensation Method." In Boron, Boron Compounds and Boron-Based Materials and Structures [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.111948.

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Boron isotopes have many applications in industry: medicine, semiconductor, and solar energy. Especially massive demand is for boron-10 isotopes in nuclear industry for nuclear reactors shielding and control. Various aspects of laser-assisted boron isotope separation by retardation of condensation method, such as irradiation conditions and laser and vacuum system design, have been considered. Irradiation conditions include interaction scheme of laser radiation and supersonic beam, dependence of efficiency of excitation on gas flow temperature and pressure. Basic physical constraints on laser intensity and its spectral properties have been discussed. The relation of gas flow properties, nozzle design, and vacuuming rate has been elucidated as well.

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Dadwal, Uday, and Rajendra Singh. "Silicon-Silver Dendritic Nanostructures Enabled Photoelectrochemical Solar Water Splitting for Energy Applications." In Silver Micro-Nanoparticles - Properties, Synthesis, Characterization, and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95934.

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Photoelectrochemical (PEC) splitting of natural water was studied using silicon nanowires decorated with silver dendrites (dendritic nanostructures) as working electrode. A metal assisted wet chemical etching method has been used for the synthesis of dendritic heteronanostructures. Measured photocurrent density 1.7 mA/cm2 under white light illumination exhibits the efficient decomposition of natural water. The decomposition of water is primarily ascribed to the enhancement in the working electrode surface and water effective interface and the decrease in the recombination of light induced (photoexcited) carriers in the existence of silver dendritic nanostructures. Enhancement in photoinduced charge carriers separation caused due to the existence of Schottky barrier between the silicon and silver dendritic nanostructures. The light induced carriers (holes) in silicon are transferred to the metal (Ag) dendritic nanostructures that work as a charge basin to effectively carry out the oxidation reaction of water during PEC measurement. The solar-to-hydrogen (STH) conversion efficiency of about 4.5% was reported, indicating the efficient PEC solar water (pH 7) splitting. A cost-effective and efficient method for the PEC solar water splitting is presented in order to enhance the STH efficiency for the production of clean and renewable fuel.

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Mian, Alberto, Adriano Viana Ensinas, Emanuele Martelli, and François Maréchal. "Multi-objective optimization of utility systems and heat exchanger networks: method and application to the solar assisted hydrothermal gasification case." In Computer Aided Chemical Engineering, 781–86. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-444-63965-3.50132-x.

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Kumar Bal, Dharmendra, and Jaykumar B. Bhasarkar. "Sono-Bio-Desulphurization of Liquid Fuel using Free and Immobilized Cell." In Ultrasound Technology for Fuel Processing, 253–79. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815049848123010016.

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In view of environmental concerns, the production of clean energy is one of the most critical issues in modern years to accommodate the growing energy needs of society (domestic usage), agriculture, and industry. Clean energy can be accomplished in several ways. A possible solution to this issue is to use renewable energy sources such as solar, wind, and nuclear power universally. The use of conventional techniques to produce energy by the combustion of fossil fuels has adverse effects on the environment due to the emission of greenhouse gas that contributes to global warming. The conventional method adopted by petroleum refinery industries has not been successful for profound desulphurization to achieve low sulphur contents. To overcome this, several new alternative chemicals, and physical and biological techniques have been developed to meet ultra-low sulphur fuel in the last two decades. Microbial desulphurization is one of the emerging alternative techniques that can remove the organo-sulphur compounds from fuels. The limitation of microbial desulphurization is the slow kinetics and it can be overcome by combining it with other desulphurization processes (hybrid system), such as the ultrasound-assisted processes. This chapter presents a critical account of research in different facets of ultrasound-assisted biodesulphurization. The microbial desulphurization process involves the use of free or immobilized microorganisms over the PU foams and the application of enzymes for desulphurization of DBT. The enzymes or proteins can act as catalysts to degrade sulphur compounds present in fuels. The present chapter also deals with the ultrasound-assisted microbial and enzymatic pathways. The concurrent analysis of experimental results on enzymatic biodesulphurizarion along with simulation results of cavitation bubble dynamics provides more insight into the actual mechanism of ultrasound on microbial and enzymatic desulphurization process.

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"Arsenic removal by advanced oxidation assisted by solar energy." In Innovative Materials and Methods for Water Treatment, 289–98. CRC Press, 2016. http://dx.doi.org/10.1201/b19577-24.

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Romeiro, Fernanda da Costa, and Aline Varella Rodrigues. "Green Synthesis of Semiconductors and Environmental Applications." In Handbook of Research on Green Synthesis and Applications of Nanomaterials, 27–50. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-8936-6.ch002.

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This chapter focuses on advancements in the green synthesis approach for nanomaterials and their environmental applications. The eco-friendly, cost-effective, and simple synthesis of inorganic nanoparticles on the environmental applications are discussed. The first section presents an introduction with the basic topics of the green materials synthesis. The second section summarizes the green chemical methods through different routes (precipitation synthesis, electrospinning synthesis, reflux condensation synthesis, hydrothermal, microwave-assisted hydrothermal methods) and the green routes using biological systems from biosynthetic process to synthesize nanoparticles and biosynthesis of passivating nanofilms using spontaneous formation. In the third section, the environmental and energy applications of nanomaterials, including solar cells, photocatalysis, and biohydrogen production are discussed. Therefore, the scientific community can experience the relation of the achieved nanomaterials with their plentiful application possibilities onto the environmental remediation.

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Тези доповідей конференцій з теми "SOLAR-ASSISTED METHOD"

Ke, Xinda, Ahmad Tbaileh, Quan Nguyen, Tamara Becejac, Mallikarjuna R. Vallem, and Nader Samaan. "A Solar-assisted Voltage Optimization Method for Transmission Solar Network Power System." In 2022 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2022. http://dx.doi.org/10.1109/pesgm48719.2022.9917048.

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Chen, Qun, and Tian Zhao. "Heat Current Method Based Modeling and Optimization of a Solar-Driven Absorption Chiller for Residential Houses." In ASME 2019 13th International Conference on Energy Sustainability collocated with the ASME 2019 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/es2019-3853.

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Abstract The utilization of solar energy is attracting rapidly increasing researches due to its many advantages, and an important application is to satisfy the refrigeration demand of residents with the solar-assisted absorption chillers. However, the simple solar-assisted refrigeration system cannot always meet the cooling demand of residents due to the mismatch between solar power and the refrigeration load. Therefore, the thermal energy storage device is introduced into the solar-assisted system to increase the stability of the refrigeration system and reduce the waste of solar energy. In this contribution, a solar-assisted absorption chiller system together with the TES device is presented and optimized to minimize the operation cost of the system. The system is modeled using the newly proposed heat current method and its global constraints are constructed, which largely reduces the number of the constraints comparing to the traditional equation-oriented approach. Optimization results present that the optimized design of the system reduces the total operation cost effectively.

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Wang, Y., W. X. Gao, L. Yang, W. Y. Zhou, and Q. Wang. "Study on Performance Test Method of Solar Assisted Gas Heating System." In The International Workshop on Materials, Chemistry and Engineering. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0007436301890193.

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Montero, Andrés, Jesús López-Villada, Carlos Naranjo-Mendoza, and Jerko Labus. "Comparative Study of Solar Assisted Cooling Technologies for Two Different Climates." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6687.

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This study describes the influence of climate conditions and different solar assisted absorption technologies on the energy performance of air-conditioning systems. The correlation between dynamic cooling load profile and the performance of various solar assisted absorption system configurations was analyzed for two different climates: a hot-summer Mediterranean climate (Seville, Spain) and a tropical savannah climate (Guayaquil, Ecuador). A generic two-story office building was selected as a case study. The building fabrics are set to comply with the best practices of the two countries and the building counts with a useful area of 1152 m2 for the solar system installation. The hourly cooling demand for the building was calculated by using a simplified calculation method based on degree-days with variable base temperature. Three different solar assisted absorption configurations were simulated in TRNSYS software environment based on three types of solar collectors: evacuated tube collectors, parabolic trough collectors and linear Fresnel collectors (micro-concentrator type). The first configuration which involves evacuated tube collectors was coupled to a single-effect H2O-LiBr absorption chiller, while the other two configurations include double-effect H2O-LiBr absorption chiller. Models of two different absorption chillers were developed based on the characteristic equation method (ΔΔt). The comparison between the configurations was based on the primary energy analysis and CO2 emission.

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De Maria, A., V. La Ferrara, G. Rametta, L. V. Mercaldo, A. Bruno, F. Matteocci, A. Di Carlo, and P. D. Veneri. "HCl-assisted two-step method for enhancing the performance of perovskite solar cells fabricated in air." In 20th Italian National Conference on Photonic Technologies (Fotonica 2018). Institution of Engineering and Technology, 2018. http://dx.doi.org/10.1049/cp.2018.1659.

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Das, Ranjan. "An Inverse Method for Parameter Retrieval in Solar Thermal Collector With a Single Glass Cover." In ASME 2021 Power Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/power2021-65601.

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Abstract The present article highlights the implementation of differential evolution (DE)-assisted metaheuristic optimizer to provide the solution of an inverse multi-variable problem related to a flat absorber solar collector consisting of a single glass. For satisfying a given heating requirement from the solar collector, the necessary tilt angle and the thickness of the glass cover are simultaneously predicted using the proposed DE methodology. The existing study of inverse multi-variable optimization analysis has been done for dynamic values of solar energy radiation and different ambient conditions commonly encountered in various geographical locations of India. Formulation of the current research involves the minimization of a newly proposed cost function involving the required and the acquired heat transfer rates from the solar collector in Euclidean space. The solution approach then utilizes a dynamic exchange between evolutionary metaheuristic DE and a well-validated forward solver containing analytical expressions of heat energy balance within the solar collector. Variations of cost function and the estimated design variables are mainly studied to visualize the algorithm’s behavior for a single gazing-based solar thermal device. Multiple possible groupings of the unknown parameters of the solar collector are revealed, which always collectively result in a desired heating requirement from the solar collector. Sensitivity indices related to the design variables are evaluated for ascertaining the relative importance of parameter selection. Encouraging opportunity is found towards the system’s size reduction through sparing selection of inclination angle. The current study provides a convenient and cost-effective tool to select the necessary inclination and glass covers to obtain low to medium heating requirements from the available incident solar energy.

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Udell, Kent, and Michael Beeman. "Thermodynamic Analysis of an Advanced Solar-Assisted Compressed Air Energy Storage System." In ASME 2016 10th International Conference on Energy Sustainability collocated with the ASME 2016 Power Conference and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/es2016-59314.

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The performance of CAES is evaluated for various configurations, with and without thermal energy storage. First, a conventional compressed air energy storage process is modeled using a time series iterative forward differencing method to simulate the round trip efficiency, exergy storage, cavern temperatures and pressures, and the gas expander exit temperature of a CAES plant. The computational model was validated experimentally by comparing trended data of the compression cycle of a 280 HP Gardener-Denver tandem horizontal two-stage compressor to computational results. It was found that the process of cooling the compressors resulted in a large exergy loss and the inefficiencies of the expanders lead to higher temperature gas being exhausted back to ambient pressures. Second, Advanced Adiabatic Compressed Air Energy Storage (AACAES) was simulated to study the effectiveness of storing the thermal energy removed from the compressors to be added to the compressed air as it enters the expanders at a later time. Third, the concept of increasing the capacity of the thermal energy storage systems to allow recharge with concentrated solar heat was explored. It was found that the thermal efficiency of converting the solar thermal energy to power would be high (> 60%). Further, the expander exhaust temperature and exergy are high (> 500 K), implying that additional waste heat energy recovery will be possible. Taken together, the results of this study show that an integrated, high efficiency, on-demand, water-free, solar energy delivery system is possible if combined with an AACAES system.

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Santhosh, N., R. Govindaraj, M. Senthil Pandian, and P. Ramasamy. "Facile synthesis of mesoporous TiO2 nanospheres by microwave-assisted hydrothermal method and its applications in dye sensitized solar cells." In DAE SOLID STATE PHYSICS SYMPOSIUM 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4980236.

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Hersh, Peter A., Calvin J. Curtis, Maikel F. A. M. van Hest, Susan E. Habas, Alexander Miedaner, David S. Ginley, Billy J. Stanbery, and Louay Eldada. "Field assisted simultaneous synthesis and transfer FASST^® method used in conjunction with liquid precursors to produce CIGS solar cells." In 2010 35th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, 2010. http://dx.doi.org/10.1109/pvsc.2010.5614588.

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Shi, Guohua, Songling Wang, Youyin Jing, and Yuefen Gao. "Economic Analysis of Liquefied Petroleum Gas Gasification Utilizing Solar Thermal Energy." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90114.

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Liquefied petroleum gas (LPG) is an important source of residential gas in China due to its advantages. Traditional LPG vaporizer mainly depends on electric heating as its heat source, which leads to high energy cost and can not meet the demand of energy conservation policy. For a community with 1000 families in Beijing, a new LPG gasification system utilizing solar thermal energy has been designed in this paper. This system uses hot water produced by a solar water heating system as vaporization heat source and uses an electric heater as assisted heat source. In order to understand the economic efficiency of the whole system better, we compare the economic feasibility of the new system with that of traditional LPG vaporization system using annual cost method (AC). In addition, a spreadsheet computer program is used in this paper for purpose of the sensitivity analysis of the parameters. The optimal operation life for each system is calculated. The result shows that the new system is more economical than the traditional system and is an environmentally friendly alternative.

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