scholarly journals Optimum Arrangement of Photovoltaic Systems in Housing at Khartoum: Application of Renewable Energy in Urban Design

2011 ◽  
Vol 2011 ◽  
pp. 1-6
Author(s):  
Zeinab Abdallah M. Elhassan ◽  
Muhammad Fauzi Mohd Zain ◽  
Kamaruzzaman Sopian ◽  
A. A. Abass

This paper searches to find out of building integrated photovoltaic system designs in Khartoum. It discussed technical issues and designed an integrated of photovoltaic in domestic using, within an urban approach towards sustainability in energy. Photovoltaic systems can be used to develop the solar energy in almost all kinds of applications. Exploiting of solar energy for domestic use is one avenue where the energy produced from the sun is converted into electricity to power most if not all the appliances available at our homes and residences. Building a photovoltaic system is the process of designing, selecting, and calculating the ratings of the equipments employed in the system. This process depends on a range of factors such as geographical location, solar irradiation, and load requirements. I introduce the procedures utilize, in building and selecting the equipments of a grid-connected photovoltaic system based on the Watt-hour demand of 3.8 kw. As a case study, a residence in Khartoum with low-energy consumption is selected.

Author(s):  
VS Chandrika ◽  
M Mohamed Thalib ◽  
Alagar Karthick ◽  
Ravishankar Sathyamurthy ◽  
A Muthu Manokar ◽  
...  

Photovoltaic (PV) system efficiency depends on the geographical location and the orientation of the building. Until installing the building structures, the integration of the PV module must be evaluated with ventilation and without ventilation effects. This work optimises the performance of the 250 kWp grid-connected photovoltaic (GPV) for community buildings in the southern part of India. This simulation is carried out to evaluate the system efficiency of the GPV system under various ventilation conditions, such as free-standing PV (FSPV), building integrated photovoltaic ventilated (BIPV_V) and Building Integrated Photovoltaic without ventilation (BIPV). The PVsyst simulation tool is used to simulate and optimise the performance of the system with FSPV, BIPV and BIPV_V for the region of Chennai (13.2789° N, 80.2623° E), Tamilnadu, India. An annual system energy production is 446 MWh, 409 MWh and 428 MWh of FSPV, BIPV and BIPV_V system respectively. while electrical efficiency for the FSPV, BIPV_V, BIPV system is 15.45%. 15.25% and 14.75% respectively. Practical application: Integrating the grid connected photovoltaic system on the building reduces the energy consumption in the building. The integration of the PV on the roof or semi integrated on the roof is need to be investigated before installing on the buildings. The need for installation of the BIPV with ventilation is explored. This study will assist architects and wider community to design buildings roofs with GPV system which are more aesthetic and account for noise protection and thermal insulation in the region of equatorial climate zones.


Author(s):  
Bharat Raj Singh ◽  
Onkar Singh

Generation of solar energy has tremendous scope in India. The geographical location of the country stands to its benefit for generating solar energy. The reason being India is a tropical country and it receives solar radiation almost throughout the year, which amounts to 3,000 hours of sunshine. This is equal to more than 5,000 trillion kWh. Almost, all parts of India receive 4-7 kWh of solar radiation per sq metres. This is equivalent to 2,300–3,200 sunshine hours per year. States like Andhra Pradesh, Bihar, Gujarat, Haryana, Madhya Pradesh, Maharashtra, Orissa, Punjab, Rajasthan, and West Bengal have great potential for tapping solar energy due to their location. Since majority of the population live in rural areas, there is much scope for solar energy being promoted in these areas. Use of solar energy can reduce the use of firewood and dung cakes by rural household. Many large projects have been proposed in India, some of them are: i).Thar Desert of India has best solar power projects, estimated to generate 700 to 2,100 GW, ii). The Jawaharlal Nehru National Solar Mission (JNNSM) launched by the Centre is targeting 20,000 MW of solar energy power by 2022, iii).Gujarat’s pioneering solar power policy aims at 1,000 MW of solar energy generation, and Rs. 130 billion solar power plan was unveiled in July 2009, which projected to produce 20 GW of solar power by 2020. Apart from above, about 66 MW is installed for various applications in the rural area, amounting to be used in solar lanterns, street lighting systems and solar water pumps, etc. Thus, India has massive plan for Solar Energy generation that may not only fulfill the deficit of power generation but also contribute largely in Green Energy Production to help to reduce the Climatic Changes globally.


Solar Energy ◽  
2003 ◽  
Author(s):  
Brian N. Farhi ◽  
James P. Dunlop ◽  
Jerry Ventre ◽  
Gobind Atmaram ◽  
Kevin W. Lynn

The Florida Solar Energy Center has been accredited by both the American Association for Laboratory Accreditation and PowerMark Corporation to certify grid-tied photovoltaic systems. The certification process involves both the testing of photovoltaic modules for performance ratings and the review and approval of system designs to provide photovoltaic system design certification. This paper focuses on the design review and approval process, which consists of a documentation review and focuses on the completeness and accuracy of instructions, schematics, and accompanying materials. System designers have received substantive critiques and assistance through the third-party technical reviews used in this process. As a result, photovoltaic system manuals that accompany reviewed systems lead to a greater likelihood of code-compliant and high-performing installations.


2009 ◽  
pp. 97-114
Author(s):  
Valerio Corradi

- The energy crisis is among the main challenges that people will have to solve in the next years. Unsustainability of the current production consumption energy model is evident. The spreading of solar system (for example Photovoltaic system) is among the basic social phenomena for the birth of a new energetic culture. After Germany and Spain, nowadays also in Italy there is a boom of transfer of solar technology for domestic use. This paper, after a brief history of energy system and a discussion on a few normative and technical issues, proposes a sociological interpretation of this social phenomenon. In particular it studies the social reasons for the actions of the people who choose solar technology.


2020 ◽  
Author(s):  
Johny Renoald Albert ◽  
Dishore Shunmugham Vanaja

The demand for sustainable energy has increased significantly over the years due to the rapid depletion of fossil fuels. The solar photovoltaic system has been the advantage of converting solar irradiation directly to electricity, and it is suitable for most of the regions. But in the case of solar energy conversion, the voltage evolved from the solar photovoltaic cells is not adequate to meet the energy demand. Therefore, the converters and inverters with energy storage systems are used to fulfill the energy demand. These conversion architectures create new challenges for effective management of the grid. Due to the evaluation of power generation, load in a particular region or area, let us simplify with the help of the duck curve. The study is focused on the energy auditing, assessment, and measurement of solar irradiation from PV system design software. This graphical representation is implemented with a typical electricity load pattern at any region.


2019 ◽  
Vol 42 (5) ◽  
pp. 542-567 ◽  
Author(s):  
Pilar Arroyo ◽  
Lorena Carrete

Purpose The purpose of this paper is to propose and empirically test a model where different motivational drivers are used to stimulate the intention of individuals to purchase green energy. Design/methodology/approach The goal-framing theory was used as the theoretical basis to design motivational statements that activate different self-goals driving the intention to adopt green energy. A field experiment was performed to investigate the influence of three different goal triggers on the intention of purchase green energy, specifically solar systems, among households living in a major city located in the central part of Mexico. The effect of demographics, environmental consciousness and perceived risk associated to the technology functionality was also considered in explaining the probability of purchase of a photovoltaic system in a short (one year) and medium (five years) terms. Findings The goal trigger grounded on normative motivations is the most influential on the probability of adoption of a photovoltaic system. However, the socioeconomic level of the household moderates the effect this type of goal trigger has on the intention of purchase a photovoltaic system. Individuals with a high socioeconomic level significantly increase their intention of purchase this green technology if motivated by a normative goal. On the contrary, individuals with a medium socioeconomic level are mostly motivated by goal triggers grounded on economic benefits. Research limitations/implications This study was circumscribed to a particular city of Mexico. Replication of the experiment in cities of other developing countries with contrasting sociotechnical contexts and the consideration of other green behaviours and explanatory variables is relevant to confirm and complement the results of this research. Practical implications The cost of photovoltaic systems represents a major barrier to the growth of the Mexican market of this renewable energy. Therefore, the promotion strategy for solar energy must be accompanied by the design of appropriate motivational drivers depending on the socioeconomic level of the segment and the time for the investment. Additionally, public and private strategies to decrease the cost of the technology and financing programs for individual and community projects are recommended. Social implications The willingness to use green energy and contribute to the protection of the environment should spring from within consumers. To upscale the solar energy market, it is relevant to understand the dominant goals of individuals when taking the decision to purchase green energy. Originality/value This study contributes to the extant research in green marketing by proposing and testing a new interpretative framework to examine how the benefits of green energy activate the self-goals of consumers, thus influencing their intentions of adoption of green energy. A theoretical model is proposed by constructing “goal-triggers” grounded on the goal-framing theory and empirically testing in the specific case of explaining the intention of purchasing photovoltaic systems in Mexico.


Author(s):  
Mohammad Yeakub Ali ◽  
Ahmad Syahmi Rahim ◽  
Seri Rahayu Ya'akub

Brunei Darussalam is a country that receives high amounts of solar irradiation annually as it is located near the equator. With the abundance of oil & natural gas resources, the country has one of the cheapest electricity costs in the world. This would in turn make solar power underutilized. The purpose of this project is to design a solar system for Brunei’s medium sized residence to meet the daily energy demands. A comprehensive analysis was conducted on the solar photovoltaic system for determining the optimum sized parts and components. The design process was divided into detailed sections so that the values are calculated using PVSyst simulation software. The simulation also predicted the specific energy production, performance evaluation, and the losses. Cost analysis was also conducted to find the efficiency and the feasibility of the system. The designed solar energy system has a capacity of 60 kWp, producing 75 MWh of usable energy annually. This system uses 66% of the energy available from the sun to generate electricity which covers the electrical demand of Brunei’s residences.


2014 ◽  
Vol 2014 ◽  
pp. 1-17 ◽  
Author(s):  
Emre Ozkop ◽  
Ismail H. Altas

Design and utilization of a Virtual Photovoltaic Systems Laboratory for undergraduate curriculum are introduced in this paper. The laboratory introduced in this study is developed to teach students the basics and design steps of photovoltaic solar energy systems in a virtual environment before entering the field. The users of the proposed virtual lab will be able to determine the sizing by selecting related parameters of the photovoltaic system to meet DC and AC loading conditions. Besides, the user will be able to analyze the effect of changing solar irradiation and temperature levels on the operating characteristics of the photovoltaic systems. Common DC bus concept and AC loading conditions are also included in the system by utilizing a permanent magnet DC motor and an RLC load as DC and AC loading examples, respectively. The proposed Virtual Photovoltaic Systems Laboratory is developed in Matlab/Simulink GUI environment. The proposed virtual lab has been used in Power Systems Lab in the Department of Electrical and Electronics Engineering at Karadeniz Technical University as a part of undergraduate curriculum. A survey on the students who took the lab has been carried out and responses are included in this paper.


2015 ◽  
Vol 137 (2) ◽  
Author(s):  
Sebastijan Seme ◽  
Jože Požun ◽  
Bojan Štumberger ◽  
Miralem Hadžiselimović

This work compares the energy production of different types and orientations of photovoltaic systems under the equal outdoor conditions over the 4-yr period in Slovenia. The following photovoltaic systems were analyzed: the fixed photovoltaic system oriented to the south tilted at 30 deg, the fixed photovoltaic system oriented to the east tilted at 30 deg, the single axis photovoltaic tracking system tilted at 30 deg, and the fixed photovoltaic system oriented to the south tilted at 15 deg. The same monocrystalline silicon (mc-Si) solar modules are used in the compared systems. The systems are installed in a radius of 20 m. This provides the same meteorological parameters during the measured period. The impact of orientation and inclination on energy production are evaluated. The analysis of the data obtained shows that the energy production of the photovoltaic systems depends on the solar irradiation, temperature of solar modules, efficiency of solar modules, and efficiency of dc-ac inverters. Based on the analysis and measurements for different photovoltaic systems, the optimal orientation and inclination are presented. The results for Slovenia show that the optimal orientation and inclination facing south tilted at 45 deg.


Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3775
Author(s):  
Aleksander Radovan ◽  
Viktor Šunde ◽  
Danijel Kučak ◽  
Željko Ban

Solar energy production based on a photovoltaic system is closely related to solar irradiance. Therefore, the planning of production is based on the prediction of solar irradiance. The optimal use of different energy storage systems requires an accurate prediction of solar irradiation with at least an hourly time horizon. In this work, a solar irradiance prediction method is developed based on the prediction of solar shading by clouds. The method is based on determining the current cloud position and estimating the velocity from a sequence of multiple images taken with a 180-degree wide-angle camera with a resolution of 5 s. The cloud positions for the next hour interval are calculated from the estimated current cloud position and velocity. Based on the cloud position, the percentage of solar overshadowing by clouds is determined, i.e., the solar overshadowing curve for the next hour interval is calculated. The solar irradiance is determined by normalizing the percentage of the solar unshadowing curve to the mean value of the irradiance predicted by the hydrometeorological institute for that hourly interval. Image processing for cloud detection and localization is performed using a computer vision library and the Java programming language. The algorithm developed in this work leads to improved accuracy and resolution of irradiance prediction for the next hour interval. The predicted irradiance curve can be used as a predicted reference for solar energy production in energy storage system optimization.


Sign in / Sign up

Export Citation Format

Share Document