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Feasibility and Techno-Economic Assessment of a 128kWp Grid-Tied SPV System using HOMER Pro
A substantial amount of the world’s annual CO 2 emissions are attributable to the continued consumption of electricity from the grid that is generated from burning fossil fuels. Renewable energy sources could strengthen grid reliability and lessen their effect on the environment, especially in high-demand regions prone to power failures. Investigating the viability of erecting solar power plants in a subtropical area to provide the necessary electricity for an educational building that operates mainly during daylight hours is the main intent of the present study. The purpose of this investigation is to demonstrate and validate a model for enormous-scale commercial HRES applications (such as an educational institution) utilising the HOMER programme to figure out the optimal size. Minimising emissions of carbon dioxide, the main greenhouse gas responsible for accelerating global warming, is also of the utmost importance. Based on the simulation findings, the optimal system configuration consisted of a 120 kW converter and 400 PV arrays (each with 320 Wp = 128 kWp). For regional power generation, the most cost-effective choice is still a combination of solar panels and the grid. Findings show that a HRES can be economically feasible for installation in educational institutions at an initial capital cost of USD$0.068 million with annual operating expenses of USD $ 0.0447 million—a reduction of 44.11% compared to the existing system. The expected payback for this endeavour is five years. Other locations with identical climates could benefit from these results when considering the deployment of comparable technology. In order to help achieve a zero-carbon target, financial rewards could encourage governments to adopt similar schemes.
Journal Article
Techno-economic evaluation of a smart power management system based on wind turbine hybrid model using Homer tool: a case study
Investigating wind energy resources is the main goal of the current study. Three tiny Wind Turbine Generators (WTGs) are incorporated into four different system models using Homer Pro Tool to simulate and optimise a 4 × 3 system configuration, producing twelve operational scenarios. A review of real-time load data and the use of precise wind resource data from an operating Weather Monitoring Station (WMS) situated in the study area marked the beginning of the procedure. Based on the capacity factor (C
f
) of six small wind turbines, three small wind turbines—Excel-10, Montana-3310, and SD6-701 are chosen. The three tiny turbines are incorporated into four hybrid optimum system models that combine battery, grid, and generators to reduce wind intermittency and power outages. The winning system architecture’s results are evaluated. Results show that the combination of hybrid wind turbines accounts for approximately 88.4% of utility grid electricity curtailment. To meet the local net demand of 165.44 kWh/day in isolated and grid-connected modes, the cost factors, represented by NPC and LCOE, range from ₹2.1 to ₹3.5 Crore and ₹3.14 to ₹5.78/kWh, respectively, in all four simulated models. Additionally, a thorough sensitivity analysis of every feasible configuration is provided by varying hub height of wind turbine generators to anticipate power output generation and cost parameters.
Journal Article
Proactive mechanisms for response to risks of business entities engaged in investment and construction activities
Basing on the extensive analysis of both native and foreign scientific publications, the authors have concluded that the problem of classifying risks and factors of their occurrence, and the risk assessment, as well, is well-publicized. In some works, strategies are proposed to mitigate consequences of the onset of risks by creating reserves. However, all of them are mechanisms of the management response during implementation of an investment and construction project, i.e., the reactive position. The article proposes to move from a reactive to a proactive position, which essence is to implement the goal set by the investor, regardless of the conditions, circumstances, and the likelihood of the manifestation of internal or external negative impacts. This problem is solved by the Business Impact Analysis (BIA) method, which logic is only in assessing the fact of breaching contracts by the subjects, but not the frequency of occurrence of events causing risks. The method used does not consider or observe the content of various events, their cause-and-effect relationships, but the only fact of nonfulfillment of the contract terms in relation to duration or estimated cost by a business entity implementing investment and construction projects.
Journal Article
Typology of Writing Systems
This paper aims at determining the relationship between writing in chats and features from different writing systems. Although net users do not realise it, they recreate features mainly from morphographic systems and consonantal scripts and, consequently, they seem to be searching for a more economical way of conveying meaning through writing. When carrying out a corpus-based study, involving 90 minutes of real-time conversations in a Portuguese chat programme, we observed tendencies concerning spelling changes: the syllable onset is usually preserved, which resembles consonantal scripts; the number of syllables is frequently maintained, in common with syllabaries; the use of emoticons reminds us of morphographic systems, and spelling words as they are heard imitates phonemically transparent orthographies. This paper aims to reflect on the phenomenon that net users unconsciously recreate features which make spelling more efficient. Tracing the deviations occuring in chats may be seen as a way of accessing the speakers' intuitive knowledge. Keywords: chat; writing system; spelling; deviation; syllable; corpus study; Portuguese.
eBook
Safety Evaluation of Certain Food Additives and Contaminants
The toxicological monographs in this volume summarize the safety and intake data on five food additives (annatto extracts, lycopene synthetic and lycopene from Blakeslea trispora, and propyl paraben). This volume also contains monographs summarizing toxicological and intake data on four food contaminants (aluminium, 1,3-dichloro-2-propanol, 3-chloro-1,2-propanediol and methylmercury). This volume and others in the WHO Food Additives Series contain information that is useful to those who produce and use food additives and veterinary drugs and those involved with controlling contaminants in food, government and food regulatory officers, industrial testing laboratories, toxicological laboratories, and universities.
eBook
Translational Approaches in Tissue Engineering and Regenerative Medicine
This groundbreaking volume is the first-ever book to focus on the translational aspect of tissue engineering and regenerative medicine (TE/RM). It offers a unique approach that helps bridge the gap between laboratory discovery and clinical translation/applications. This landmark book identifies the current and upcoming roadblocks in the area of scientific research and technological development of stem cells, tissue engineering, wound healing, and in vivo animal models. You find comprehensive coverage of the technological, regulatory and funding aspects of TE/RM from leading authorities in the field. The book presents the very latest details in this cutting-edge area, covering multiple tissues, organs and systems. Key topics range from stem cells in regenerative medicine - to common and enabling approaches in TE/RM - to federal funding, industrial approaches, and regulatory mechanisms. This one-of-a-kind resource offers you an interdisciplinary blend of critical knowledge that shows how biology, engineering, and medical research have self-assembled into the growing field of tissue engineering and regenerative medicine.
eBook
Implementation of a proactive referral tool for child healthcare professionals to encourage and facilitate parental smoking cessation in the Netherlands: a mixed-methods study
Background
Recently, the parent-tailored telephone based smoking cessation counseling program ‘Smoke-free Parents’ was shown to be effective in helping parents to quit smoking. To implement this program in child healthcare settings in the Netherlands, the research team developed a proactive referral tool to refer parents to Smoke-free Parents. The aim of the present implementation study was to explore the facilitators, barriers, and suggestions for improvement in the implementation of this referral tool.
Methods
Child healthcare professionals (
N
= 68) were recruited via multiple strategies (e.g., social media, mailings, and word of mouth among healthcare professionals) and invited to complete two online (quantitative and qualitative) questionnaires and to participate in a telephone semi-structured qualitative interview between April 2017 and February 2019. In total, 65 child healthcare professionals were included in the analyses. After inductive coding, thematic analyses were performed on the qualitative data. Descriptive analyses were performed on the quantitative data.
Results
The data from both questionnaires and the telephone interview revealed that the majority of the child healthcare professionals (92.3 % female; average years of working as a healthcare professional: 23.0) found the Smoke-free Parents referral tool accessible and convenient to use. Yet there were several barriers that limited their use of the tool. The data revealed that one of the main barriers that healthcare professionals experienced was parental resistance to smoking cessation assistance. In addition, healthcare professionals noted that they experienced tension when motivating parents to quit smoking, as they were not the parent’s, but the child’s healthcare provider. Additionally, healthcare professionals reported being concerned about the lack of information about the costs of Smoke-free Parents, which limited professionals referring parents to the service.
Conclusions
Although healthcare professionals reported rather positive experiences with the Smoke-free Parents referral tool, the use of the tool was limited due to barriers. To increase the impact of the Smoke-free Parents telephone-based smoking cessation counseling program via child healthcare settings, it is important to overcome these barriers. Suggestions for improvement in the implementation of the referral tool in child healthcare settings are discussed.
Journal Article
Hybrid cultures : strategies for entering and leaving modernity
Traditions not quite past and modernity not yet wholly present make a curious hybrid of Latin American culture. In this thought-provoking book, a leading Mexican intellectual explores the theoretical and practical challenges presented by such a hybrid state. In particular, Néstor García Canclini questions whether Latin America can move toward democracy and compete in a global marketplace without giving in to temptations of elitism or losing its cultural identity.
eBook
Theory and History of Folklore
The Russian folklorist Vladimir Propp published his first book, Morphology of the Folktale, in 1928. Since it was translated to English, in 1958, it has become an international bestseller and is well known as a major theoretical work in oral literature. Now, Anatoly Liberman has selected seven essays and three chapters from his later books which together reveal the full range of Propp’s thought in Theory and History of Folklore. This will help readers see that his work is essentially a theory of narrative. Included are the famous essay by Claude Levi-Strauss about Propp and Propp’s response to Levi-Strauss’s Critique. “This book will give Propp’s admirers in the English-speaking world a whole new perspective on this distinguished scholar’s contribution to folkloristics. Liberman provides the necessary background in terms of Russian/Soviet intellectual (and political) currents to place Propp’s work in a new light. No student of structuralism in folklore can afford to miss Liberman’s anthology.” -Alan Dundes, University of California, Berkeley
eBook