Solar Compass最新文献

{"title":"A comparative simulation between monofacial and bifacial PV modules under palestine conditions","authors":"Adel Juaidi ,&nbsp;Mahmoud Kobari ,&nbsp;Ahmad Mallak ,&nbsp;Ahmad Titi ,&nbsp;Ramez Abdallah ,&nbsp;Moath Nassar ,&nbsp;Aiman Albatayneh","doi":"10.1016/j.solcom.2023.100059","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100059","url":null,"abstract":"<div><p>During the last period, solar energy gained a lot of attraction and is expected to be the replacement for non-renewable energy due to its great potential and advantages, one of these advantages is that solar energy is scalable, which means it can be used on an industrial scale or lesser, another advantage is that solar energy is a clean source, this means it causes no pollution to the environment, in addition, solar energy is the future, as its cost is going down and non-renewable energy is becoming more and more expensive. This project aims to conduct a comparative analysis of the performance of bifacial and monofacial solar panels under diverse conditions. The investigation involves examining the influence of varying albedo levels and the type of surface beneath the PV panels, including sand, white paint, black asphalt, or artificial grass. The renowned software tool PVsyst will be employed to simulate and analyze PV systems. The location selected for this study is An-Najah National University in Nablus, Palestine. The PV panels will be oriented towards the true south, and a tilt angle of 28˚ will be employed. Through meticulous simulations and thorough analysis, this research seeks to provide comprehensive insights into the contrasting performance characteristics of bifacial and monofacial solar panels across different environmental contexts. The ultimate objective is to contribute valuable knowledge regarding the suitability and optimal utilization of these PV technologies. The study aims to evaluate and compare the electrical output, energy yield, and overall performance of bifacial and monofacial solar panels under different scenarios. The project will analyze factors such as the energy gain achieved by the bifacial panels due to rear-side irradiance reflection, the impact of albedo on the performance of bifacial panels, and the influence of shading on both panel types.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"8 ","pages":"Article 100059"},"PeriodicalIF":0.0,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50184502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solar crop dryer with thermal energy storage as backup heater","authors":"Joseph Ellis ,&nbsp;Richard Opoku ,&nbsp;Charles K.K. Sekyere ,&nbsp;Albert K. Arkoh","doi":"10.1016/j.solcom.2023.100058","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100058","url":null,"abstract":"<div><p>In this research work, a solar crop dryer incorporated with thermal energy storage system as backup heater was designed and constructed from locally available materials for drying sorghum. Thermal energy storage (TES) provides several opportunities for efficient energy use and conservation. In the experimental work, flake salt was used as the storage medium to store the heat energy in aluminium pipes. From the experiment conducted on the TES system, the results showed that the dryer reduced the moisture content from about 30% to 11% wet basis in 6 hours. Without the TES, the moisture content could only be reduced from 30% to 13% in 24 hours. The temperature of the TES was found to be between 110 °C and 72.2 °C which was higher than the temperature without TES (40.8 °C to 46.5 °C) for a 24-hour period. Further analysis indicated that the heat storage not only improves the drying but increases the throughput of the device as it can be used at night.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"8 ","pages":"Article 100058"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50184501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Renewable energy enabling pathways towards prosperity in Africa and South Asia","authors":"Christian Breyer,&nbsp;Ayobami S. Oyewo,&nbsp;Ashish Gulagi,&nbsp;Dominik Keiner","doi":"10.1016/j.solcom.2023.100057","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100057","url":null,"abstract":"<div><p>Africa and South Asia are the regions with the fastest growing population in the world. Both of these major regions are located in the sunbelt with excellent solar as well as other renewable energy resources. Rising standards of living accompanied by a massive economic development triggers a vast need of energy. This study reflects the opportunities for an economic development largely based on renewable energy and especially the role of solar photovoltaics as a primary option for low-cost energy supply in the sunbelt. Investigations also cover the share of 100% renewable energy system analyses for Africa and South Asia and the opportunities of a Solar-to-X Economy in the sunbelt. The current status and energy system transition prospects until 2050 for Africa and South Asia are presented, including an outlook for post-2050 trends. Strategic opportunities for Africa and South Asia show many similarities but also structural differences. A central finding of this study is that low-cost solar photovoltaics is the core of a prosperous development in Africa and South Asia. This will be strongly supported by low-cost batteries and electrolysers for a self-sufficient growth of the two most populous regions in the world. Additionally, this will create significant export opportunities for e-fuels, e-chemicals and e-materials for Africa enabled by its large land availability and excellent solar resources, while land area is rather limited in South Asia. Sustainable development for Africa and South Asia will be closely related to the roll-out of a Solar-to-X Economy.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"8 ","pages":"Article 100057"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50184503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inventions, innovations, and new technologies: Flexible and lightweight thin-film solar PV based on CIGS, CdTe, and a-Si:H","authors":"Samantha Wijewardane ,&nbsp;Lawrence L. Kazmerski","doi":"10.1016/j.solcom.2023.100053","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100053","url":null,"abstract":"<div><p>This survey examines new and emerging applications and technology advancements that hold potential for effective use and market expansion of thin-film solar photovoltaics (PV). We review recent inventions and innovations to enhance the distinctive properties and functionalities of thin-film devices for successfully adapting in the emerging applications. Also, we present a brief review of the evolution and status of the three current major thin-film technologies, highlighting some strengths and concerns. Selected notable patents are listed at the end. The objective is to draw attention to the inventions, innovations, and new technologies that thin-film PV could impact, leading to a net-zero carbon future.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"7 ","pages":"Article 100053"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental of membrane distillation unit coupled with a DCMD using solar energy","authors":"Mokhless Boukhriss ,&nbsp;Mehdi Timoumi ,&nbsp;Habib Ben Bacha","doi":"10.1016/j.solcom.2023.100055","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100055","url":null,"abstract":"<div><p>The results of an innovative membrane distillation system paired with an efficient and robust solar water collector that provides drinking water with high quality and a low rejection rate, independent of the salinity of the water source, are presented in this study. We then optimized and characterized the direct contact membrane distillation (DCMD) experiment in a pilot plant. For the experimental tests, brackish water was used for the experimental tests, which had a salinity varying from 1 g to 20 g/l of salt. The results showed that the permeate flux increased as the temperature and feed rate increased. To evaluate the experimental and numerical records of the mathematical model of the membrane distillation unit an instance of the validation system that has been provided to evaluate the credibility of the received numerical version of the membrane distillation unit, a PC simulation software primarily based totally on the worldwide version of the unit is simulated <em>via</em> C++ software program to clear up the version of sun irradiation and all temperatures at the magazine productiveness of the membrane distillation unit. It was proven by means of this study that the worldwide mathematical model of the unit is capable of predicting, as it should, the tendencies of the thermal function of the membrane distillation unit.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"7 ","pages":"Article 100055"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conception, Realization and Testing of a Solar Cooker Built with Ring Array Concentrator - RAC in sub Saharan region","authors":"Thierry Sikoudouin Maurice Ky ,&nbsp;Ibrahim Sorgho ,&nbsp;Sayoba Sawadogo ,&nbsp;Dieudonné Dabilgou ,&nbsp;Salifou Ouédraogo ,&nbsp;Adama Ouédraogo ,&nbsp;Sié Kam ,&nbsp;Dieudonné Joseph Bathiebo","doi":"10.1016/j.solcom.2023.100056","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100056","url":null,"abstract":"<div><p>A Ring Array Concentrator - RAC was conceived, realized and tested for cooking purpose in Burkina Faso where irradiation flux is about 5.5kWh/m<span><math><msup><mrow></mrow><mn>2</mn></msup></math></span>/day. The RAC, having a useful aperture area of 1.692 m<span><math><msup><mrow></mrow><mn>2</mn></msup></math></span>, was built with five (5) imbricated conical concentrators. The conceived RAC has a mean geometric concentration ratio evaluated to 38, allowing a transmitted temperature of 330<span><math><msup><mrow></mrow><mo>∘</mo></msup></math></span>C to the receiver’s fluid, supposing a possible cooking time of 6 hours and with a theoretical efficiency from 36% to 40%. This is therefore suitable for cooking, frying and roasting. Water was boiled from October 13th to 15th, 2021 and frying oil was raised up to 132<span><math><msup><mrow></mrow><mo>∘</mo></msup></math></span>C in October 21st and 22nd, 2022. One (1) kg of potatoes was fried and another kg of meat brochettes were roasted for experimental purpose, supporting the fact that RAC systems could be used efficiently to cook in Burkina Faso, a Sub Saharan country. The weak points of the system, such as the sharp decrease of the mean geometric concentration ratio compared to parabolic RAC and the fact that sun rays come from above, could even be improved by the multiplication of the cones and the channeling of the sun rays by multiple reflections. The RAC could therefore be implemented as a clean cooking technology in an area where abusive wood and Charcoal cooking is still widely in place in suburban areas.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"7 ","pages":"Article 100056"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of forecasting method of time variation of net solar output over wide area using grand data based neural network","authors":"Chikako Dozono,&nbsp;Shin-ichi Inage","doi":"10.1016/j.solcom.2023.100050","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100050","url":null,"abstract":"<div><p>This paper focuses on the short-term forecasting of the temporal variation in the net output of photovoltaic power generation across a wide area. Due to the unstable output fluctuations of photovoltaic power generation, thermal power generation is necessary. However, to handle unpredictable power fluctuations, thermal power often operates in a no-load standby mode, resulting in wasteful energy consumption. To address this issue, we have developed a novel prediction method that utilizes neural networks for short-term forecasting of the net output of photovoltaic power generation in a wide area. The key aspect of this method is the utilization of the distributed solar power generation itself as a sensor within the target area, enabling the use of BIG DATA derived from the sensor to predict future net output of solar power generation using a neural network. To expedite calculations, we have incorporated an autoencoder and a decoder. We applied this methodology to northern Kyushu and conducted thorough verification. Furthermore, we compared the persistent model with the smart persistent model and demonstrated their effectiveness as viable solutions.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"7 ","pages":"Article 100050"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solar powering public health centers: A systems thinking lens","authors":"Rachita Misra ,&nbsp;Huda Jaffer","doi":"10.1016/j.solcom.2023.100052","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100052","url":null,"abstract":"<div><p>Around 300,000 women around the world die every year due to complications during pregnancy and childbirth. An estimated 19.9 million children do not receive critical vaccinations putting them at serious risk of potentially fatal diseases. These risks and deaths are preventable with appropriate management and care. Access to healthcare in low resource settings requires a comprehensive approach that strengthens infrastructure, systems, and medical and human resources. The lack of access to energy within infrastructure strengthening dramatically contributes to the immense healthcare challenge faced by developing countries. Electricity is essential for access to health services, as essential as the healthcare center, human resources, equipment, medicines etc. Universal Health Coverage cannot be achieved without energy access in healthcare facilities.</p><p>Healthcare today, without counting the potential services to the un-catered populations in the world, contributes to GHG emissions, equivalent to the 5th most polluting country in the world. Furthermore, if we must meet the goals of access to health today, it cannot be considered via traditional models of electrification, keeping both the health of the people andthe planetary boundaries in mind. Clean energy and particularly solar energy, if planned and deployed in a manner that is decentralized, need-based along with accounting for local capacities and conditions for sustenance - can become a ‘silver bullet’ in catalyzing healthcare access to under-resourced settings. Given low-resource settings and last mile healthcare requirements this article only takes into consideration off-grid solar systems, which could be one of the primary ways for health centers to become resilient and contribute to climate mitigation, irrespective of prevailing grid and on-grid conditions.</p><p>With multiple similar programs for solar powering public health facilities over the past decade there are learnings that emerge from across the globe. One of the key learnings is the need for a system thinking lens while deploying decentralized solar for health programs that sustain from a long-term perspective. Systems thinking is an approach that enables one to consider the health system as a whole, while designing demand driven solar powering programs for driving access to healthcare goals. This can be done by breaking down all aspects of solar powering and ensuring that within each aspect, the need is well-understood, the key stakeholders and their priorities are considered and capacities and relationships are accounted for. Moreover, systems are put in place for customization, expansion, and maintenance over time. The suggestions and examples provided below prioritize healthcare needs while driving enabling conditions for design and sustenance of solar for meeting current and future healthcare challenges. While healthcare systems require multiple levels of both curative and preventative healthcare, the consideration","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"7 ","pages":"Article 100052"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technical, financial, and emissions analyses of solar water heating systems for supplying sustainable energy for hotels in Ghana","authors":"Flavio Odoi-Yorke ,&nbsp;Romain Akpahou ,&nbsp;Richard Opoku ,&nbsp;Lena D. Mensah","doi":"10.1016/j.solcom.2023.100051","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100051","url":null,"abstract":"<div><p>Ghana has the potential to deploy solar energy technologies, with its solar irradiation varying between 4 and 6.5 kWh/m²/day. However, the country's dependence on fossil fuels for generating electricity and heat remains prevalent. This study aims to assess the technical and financial feasibility of installing solar water heating (SWH) systems in hotels within Ghana. RETScreen software is used to conduct the technical, financial, and emission analyses of the SWH system for five cities in Ghana, including Accra, Cape Coast, Kumasi, Tamale, and Wa. The findings show that SWH systems are feasible for Ghanaian hotels, with solar fractions ranging from 61.2% in Kumasi to 78.5% in Wa. Also, installing the SWH system yields a positive net present value for all the cities. The implication is that installing SWH systems in hotels operating in Ghana is financially viable and attractive for investment. In addition, payback periods infer that the SWH systems can generate a return on investment in a reasonable time frame, especially considering the equity payback period. Furthermore, about 58.7 tonnes of carbon dioxide (CO₂) emissions could be avoided annually by installing the SWH system in the selected cities. This study's findings suggest that hotels can achieve long-term financial savings on electricity costs by utilising solar energy to heat water. This, in turn, reduces their reliance on fossil fuel consumption while actively pursuing their sustainability objectives. The study findings are crucial in assisting hotel owners in making informed decisions on SWH systems.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"7 ","pages":"Article 100051"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel GMPP estimation technique for series parallel connected partially shaded PV array","authors":"Shashank Kumar ,&nbsp;Sisir Kumar Nayak ,&nbsp;Himanshu Sekhar Sahu","doi":"10.1016/j.solcom.2023.100049","DOIUrl":"https://doi.org/10.1016/j.solcom.2023.100049","url":null,"abstract":"<div><p>This paper presents a novel generalized model of the PV array, its circuit equation and an algorithm for its global maximum power point (GMPP) estimation in partial shading condition (PSC). A set theory based approach is proposed to develop equations in terms of voltage and current of strings and array of the generalized model of series parallel PV configuration under partial shading condition. Further, a mathematical expression for the iteration voltage is derived based on a generally observed property of local maximum power point (LMPP). The proposed GMPP estimation algorithm converges fast by simultaneous elimination of non-potential sections and subsections of the power-voltage curve of an array. Robustness of the proposed method for GMPP estimation is tested by considering 2000 no. of random shading patterns generated by MATLAB for two different PV array. Comparisons with the other existing methods in terms of accuracy and computational time of the GMPP estimation show the competitiveness of the proposed method. Experimental validation of the proposed method is carried out in the laboratory. The simulation and experimental results show that the proposed method for the GMPP estimation of a PV array under PSC is better and will be helpful for PV professionals.</p></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"7 ","pages":"Article 100049"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50199570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}