Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Performance Assessment" wg kryterium: Temat


Tytuł:
Improving teachers classroom assessment practices: perceptions of teachers in the Ellembelle District of Ghana
Autorzy:
Gyamfi, Abraham
Loganathan, Saranraj
Acquaye, Rosemary
Powiązania:
https://bibliotekanauki.pl/articles/25806551.pdf
Data publikacji:
2023
Wydawca:
Szkoła Główna Handlowa w Warszawie
Tematy:
teachers’ challenges
students’ performance self-assessment
peer assessment
performance assessment
rubrics
Opis:
This study looks at how teachers can improve their in-class assessment practice in the Ellembelle District in Ghana, and aims to identify the challenges confronted by teachers in classroom assessments, as well as ways to improve the classroom assessments themselves. A quantitative research method was adopted using a simple random sampling technique. The study was conducted among 207 professional teachers using a mailed questionnaire (primary data), which was analyses using statistical tools. The study found that teachers face many challenges in their classroom assessments, and thus proposed performance-based assessments, rubrics, peer assessment, portfolio assessment and self-assessment as strategies for improving classroom assessments. It is recommended that the Ghana Education Service ensure a decrease in strength in classrooms in the district, incorporate peer assessment, and conduct in-service training, self-assessment, and performance evaluation to improve effective classroom assessments.
Źródło:
e-mentor. Czasopismo naukowe Szkoły Głównej Handlowej w Warszawie; 2023, 101, 4; 56-62
1731-6758
1731-7428
Pojawia się w:
e-mentor. Czasopismo naukowe Szkoły Głównej Handlowej w Warszawie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal variation of speed, agility and power performance in elite female soccer players: effect of functional fitness
Autorzy:
Stepinski, Miłosz
Ceylan, Halil Ibrahim
Zwierko, Teresa
Powiązania:
https://bibliotekanauki.pl/articles/1921950.pdf
Data publikacji:
2020-02-12
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
functional performance assessment
physical performance examination
Women's soccer
Opis:
The purpose of this study was to evaluate the changes of speed, agility and power performance during one soccer season and the impact of functional fitness on changes in motor performance in elite female soccer players. This study was conducted with 18 members of the Polish Women's National Football Team. The analyzed training season was divided into four training phases. Physical performance was assessed by a test of quickness - the 5m sprint, tests of maximal speed - the 30 m sprint, test of agility L-run test and tests of lower limb explosive power - counter movement jump (CMJ) and counter movement jump with arm swing. Functional fitness was assessed using the Functional Movement Screen (FMS). Individual functional training as well as a training plan based on FIFA 11+ prevention were utilized. The analysis showed significant improvement in the CMJ test (F=3.02, p<0.05) and FMS score (F=5.959, p<0.01) during the in-season. Other parameters of physical performance were stable during the evaluation period. Positive correlations between baseline FMS score and changes of athletes' 30m sprint performance (r=-0.48, p<0.05), total in-season change of FMS score and total inseason change of 5m sprint performance (r=-0.53, p<0.05) were observed. Female soccer players during the in-season demonstrated a relatively good level of physical performance which corresponds to their particular training phase. Functional fitness intervention appears to be an effective way of improving speed, acceleration, and power performance in elite female soccer players.
Źródło:
Physical Activity Review; 2020, 1, 8; 16-25
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Equivalent availability index for the performance measurement of haul truck fleets
Autorzy:
Kristjanpoller, Fredy
Viveros, Pablo
Zio, Enrico
Pascual, Rodrigo
Aranda, Oscar
Powiązania:
https://bibliotekanauki.pl/articles/1841923.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
performance assessment
reliability engineering
production management
availability
Opis:
This article presents a model of performance analysis for a truck fleet system in an openpit mine, considering special characteristics of haul fleets. In these systems, the expected availability of each piece of equipment and its operating capacity are the fundamental variables to construct a global fleet performance function. Our analytical algorithm considers heterogeneous fleets with known individual characteristics of transport capacity and failure and repair behavior. The results converge to a new indicator denominated “Equivalent Availability” (EA), which arises from the need to evaluate the capacity of the truck fleet to operate at a lower payload than required using different combinations of equipment to achieve an availability goal. EA is a key indicator to determine the productive capacity of a process, and for selecting equipment and their combinations to achieve production objectives. To exemplify the potentialities of the EA, a case study is implemented in a Chilean copper truck fleet mining process.
Źródło:
Eksploatacja i Niezawodność; 2020, 22, 4; 583-591
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Developing a Social Enterprise Performance Scale and Examining the Relationship Between Entrepreneurs’ Personality Traits and Their Perceived Enterprise Performance
Autorzy:
Liang, Chao-Tung
Peng, Li-Pei
Yao, Shu-Nung
Liang, Chaoyun
Powiązania:
https://bibliotekanauki.pl/articles/474936.pdf
Data publikacji:
2015
Wydawca:
Fundacja Upowszechniająca Wiedzę i Naukę Cognitione
Tematy:
performance assessment
personality traits
scale development
social enterprise
social enterprise performance scale
Opis:
On the basis of the lack of measurement tools and the research gap regarding social entrepreneurship, three studies were conducted to develop a new measure of social enterprise (SE) performance that is empirically valid and easy to administer. The purpose of this measure was to examine the relationship between entrepreneurs’ personality traits and their perceived SE performance. The results indicated that SE performance can be assessed using four dimensions: personal issues, social aspects, business elements, and service programmes. Extraversion positively influenced service programmes, and openness negatively affected service programmes. Neuroticism and conscientiousness positively predicted personal issues and service programmes, and agreeableness positively predicted all dimensions of perceived SE performance. The results also demonstrated the curvilinear relationship of the U-shaped curve between neuroticism and personal issues and the social aspects of SE performance. Furthermore, the results showed the curvilinear relationship of the inverted U-shaped curve between agreeableness and the four dimensions of SE performance.
Źródło:
Journal of Entrepreneurship, Management and Innovation; 2015, 11, 3; 89-116
2299-7075
2299-7326
Pojawia się w:
Journal of Entrepreneurship, Management and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-Gaussian statistical measures of control performance
Autorzy:
Domański, P. D.
Powiązania:
https://bibliotekanauki.pl/articles/206277.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
Control Performance Assessment
statistical measures
PID
disturbance shadowing
non-Gaussian functions
Opis:
Statistical approach to Control Performance Assessment (CPA) is of great practical importance. This is particularly visible in process industry, where there are many PID loops. They are often assessed with measures derived from the Gaussian probabilistic density function. Standard deviation, variance, skewness or kurtosis form the majority of applied indexes. The review of data originating from process industry shows, however, to the contrary, that these signals have rather non-Gaussian properties and are mostly characterized by fat-tailed distribution disable the ability. Investigations show that strong disturbances may significantly disable the capacity of proper assessment. Standard measures often fail in such cases. It is shown that non-Gaussian measures can help with this problem. Various disturbances are tested and compared. Results show that fat-tailed distributions are an interesting alternative. They are less sensitive to disturbance shadowing and still make possible loop dynamic assessment.
Źródło:
Control and Cybernetics; 2017, 46, 3; 259-290
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing telecommunication contractor firms using a hybrid DEA-BWM method
Autorzy:
Valizadeh, Omid
Ghiyasi, Mojtaba
Powiązania:
https://bibliotekanauki.pl/articles/29432383.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
performance assessment
data envelopment analysis
best worst method
telecommunication contractor firm
Opis:
Telecommunication companies have an important role in technology development, so evaluating the performance of these companies has been an interest of managers. This article uses a hybrid method using data envelopment analysis (DEA) and the best-worst method (BWM) to measure the performance of communication companies. The hybrid DEA-BWM method is used for the weight determination and performance assessment of 17 telecommunication contractor firms in the Khorsan Razavi province of Iran. We considered four inputs: gross losses, sales cost, legal reserve, and fixed assets. On the other side, three outputs including operation income, operation profit, and retained earnings are considered as outputs. Considering the input-output parameters and using the hybrid method by seven selected criteria, we rank all contractor firms. We found that the BPM firm has the best performance while and GKS firm is found as the firm with the weakest performance. Compared with the classical DEA methods, we found more reliable results with higher discrimination power, using the hybrid DEA-BWM.
Źródło:
Operations Research and Decisions; 2023, 33, 4; 189--200
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bewertung von Dolmetschleistungen im Unterricht
Consecutive interpreting in class – assessing students’ progress
Autorzy:
Błaszkowska, Hanka
Stöckmann, Britta
Powiązania:
https://bibliotekanauki.pl/articles/919732.pdf
Data publikacji:
2011-01-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Consecutive interpreting
Quality of interpreting
Interpreter's performance
Interpreter performance assessment
Errors in interpreting
(self) evaluation
Opis:
The article deals with the linguistic and paralinguistic problems that arise in the process of interpreter training and discusses the methods of assessing students’ progress. The data was collected during the practical courses in consecutive interpreting for the 3rd-year students of the Institute of Applied Linguistics in Poznań and comprises the period of five years. Additionally, different methods of evaluating students’ progress are analyzed with respect to their effectiveness and potential advantages for interpreters in training.
Źródło:
Glottodidactica. An International Journal of Applied Linguistics; 2011, 38, 1; 73-82
0072-4769
Pojawia się w:
Glottodidactica. An International Journal of Applied Linguistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the GPC control quality using non-Gaussian statistical measures
Autorzy:
Domański, P. D.
Ławryńczuk, M.
Powiązania:
https://bibliotekanauki.pl/articles/331090.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
control performance assessment
GPC control
non Gaussian PDF
Cauchy PDF
Lévy α-stable PDF
Opis:
This paper presents an alternative approach to the task of control performance assessment. Various statistical measures based on Gaussian and non-Gaussian distribution functions are evaluated. The analysis starts with the review of control error histograms followed by their statistical analysis using probability distribution functions. Simulation results obtained for a control system with the generalized predictive controller algorithm are considered. The proposed approach using Cauchy and Lévy α-stable distributions shows robustness against disturbances and enables effective control loop quality evaluation. Tests of the predictive algorithm prove its ability to detect the impact of the main controller parameters, such as the model gain, the dynamics or the prediction horizon.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2017, 27, 2; 291-307
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seeking the best practices of assessment in maritime simulator training
Autorzy:
Tusher, H. M.
Nazir, S.
Ghosh, S.
Rusli, R.
Powiązania:
https://bibliotekanauki.pl/articles/24201462.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime education and training
human factor
maritime simulator training
assessments in simulated environments
Performance Assessment
assessment model
STCW
literature review
Opis:
Simulator-based training has become an integral part of Maritime education, and its effectiveness hinges on the use of appropriate assessment protocols. Despite the existence of several subjective and objective assessment techniques, instructors face difficulties in selecting and implementing the best practices that fit different learning contexts. The contextualized utility of the available assessment techniques further complicates the contexts. This study adopts a systematic literature review approach to comprehensively analyse available assessment techniques employed in maritime simulator training and to elicit their relationship with the desired learning outcomes. The study also presents a nuanced understanding of the advantages and limitations of the identified assessment techniques. Further, the state-of-the-art of assessment methods is discussed along with a few proposals for the future considering both research and practical implications. The findings of this study are expected to provide valuable guidance to maritime instructors in selecting and implementing appropriate assessment techniques that align with desired learning outcomes in simulator training.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 105--114
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards automated performance assessment for maritime navigation
Autorzy:
Øvergård, K. I.
Nazir, S.
Solberg, A. S.
Powiązania:
https://bibliotekanauki.pl/articles/117352.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ships manoeuvering
maritime navigation
automated performance assessment
automated assessment algorithms
save navigation
algorithms
analytic hierarchy process (AHP)
Subject Matter Expert (SME)
Opis:
This paper presents the outcome of a pre-project that resulted in an initial version (prototype) of an automated assessment algorithm for a specific maritime operation. The prototype is based on identified control requirements that human operators must meet to conduct safe navigation. Current assessment methods of navigation in simulators involve subject matter experts, whose evaluations unfortunately have some limitations related to reproducibility and consistency. Automated assessment algorithms may address these limitations. For a prototype, our algorithm had a large correlation with evaluations performed by subject matter experts in assessment of navigation routes. The results indicate that further research in automated assessment of maritime navigation has merit. The algorithm can be a stepping stone in developing a consistent, unbiased, and transparent assessment module for evaluating maritime navigation performance.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 229-234
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie różnych sposobów optymalizacji nastaw regulacji procesów przemysłowych z uwzględnieniem wpływu wskaźników oceny ich jakości
Comparison of Various Controller Parameters Optimization Strategies for Industrial Processes Using Different Control Performance Assessment Indexes
Autorzy:
Bogusz, Konrad
Rajkowski, Bartosz
Domański, Paweł D.
Powiązania:
https://bibliotekanauki.pl/articles/276773.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
ocena jakości sterowania
PID
MPC
wykładnik Hursta
analiza R/S
Control Performance Assessment
Hurst exponent
R/S analysis
Opis:
Jakość regulacji jest kluczowym zagadnieniem w nowoczesnym przemyśle. Zadaniem inżyniera jest nie tylko dobór parametrów regulacji, ale również bieżące nadzorowanie jej jakości tak, aby maksymalizować wydajność procesu a także dbać o stan aparatury i urządzeń wykonawczych. W zdecydowanej większości rozwiązań praktycznych stosowany jest kwadratowy wskaźnik jakości, zarówno w procesie strojenia jak i oceny jakości regulacji. W artykule zostały zaproponowane inne wskaźniki, cechujące się większą odpornością. Zostały one zastosowane do dwóch zadań: projektowania nastaw regulatora oraz oceny jakości już pracującej struktury sterowania. W pracy uwzględnione zostały rozwiązania dla różnych wersji podstawowego algorytmu regulacji w przemyśle procesowym, tj. PID. Różne strategie regulacji PID zostały również porównane z algorytmem sterowania predykcyjnego typu MPC. Analiza symulacyjna wykorzystuje przemysłowy benchmark układu sterowania systemem chłodniczym wykorzystującym zjawisko kompresji pary.
Control quality is a crucial issue in modern industry. The engineer’s goal is to set control parameters and assess it constantly in order to maximize the efficiency of the process and watch the condition of actuators. The article describes a number of Control Performance Assessment indexes. They are applied to two tasks: controller tuning and the assessment of the quality of an already tuned control strategy. It presents a comparison between different indexes applied to various structures of the PID control algorithm. Finally the results are compared with Model Predictive Control. The analysis uses well known nonlinear industrial benchmark of a refrigeration system based on vapour compression.
Źródło:
Pomiary Automatyka Robotyka; 2019, 23, 3; 27-39
1427-9126
Pojawia się w:
Pomiary Automatyka Robotyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Professional development of academic teachers in the audit culture
Rozwój zawodowy nauczycieli akademickich w kulturze audytu
Autorzy:
Szplit, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/2081969.pdf
Data publikacji:
2021
Wydawca:
Lubuskie Towarzystwo Naukowe
Tematy:
audit culture
teachers’ performance assessment
teachereducators
teacher educators’ professional development
kultura audyty
ocena pracy nauczyciela
nauczycielenauczycieli
rozwój zawodowy nauczycieli
Opis:
Current problems in education include excessive bureaucracy and the need to develop tools to measure the effectiveness of teaching and scientific development. This is evidenced by the measurement procedures commonly implemented for quality of education and constant checking the implementation of intended activities. The pedagogical literature uses terms such as “audit society” or “audit culture” to describe these trends. The paper analyses this situation, which can also be observed in the Polish educational system, based on qualitative research conducted among teacher educators. It presents the activities of teacher educators who fulfill the audit requirements or undertake activities that do not correlate with the imposed development criteria. The paper describes the experiences of teacher educators looking for ’a golden means’ and the actions they take to find a balance between bureaucratic criteria for assessing their professional.
Jednym z obecnych problemów edukacji jest jej nadmierne zbiurokratyzowanie i potrzeba określenia stałych miar badających efektywność nauczania czy rozwój naukowy. Świadczą o tym powszechnie wdrażane procedury mierzenia jakości kształcenia i sprawdzania realizacji zamierzonych działań. Na określenie tych trendów w literaturze pedagogicznej pojawiają się zatem takie terminy jak „społeczeństwo audytu” czy „kultura audytu”. Artykuł charakteryzuje ten trend, pojawiający się również w polskiej edukacji, w oparciu o badania jakościowe przeprowadzone wśród nauczycieli akademickich specjalizujących się w kształceniu nauczycieli. Wskazuje działania nauczycieli akademickich poddających się audytowi lub podejmujących działania nie korelujące z narzucanymi kryteriami rozwoju. Opisuję doświadczenia nauczycieli poszukujących „złotego środka” i podejmowane przez nich działania w celu odnalezienia równowagi pomiędzy biurokratycznymi kryteriami oceny ich rozwoju zawodowego a indywidualnymi preferencjami i wizją pracy akademickiej.
Źródło:
Rocznik Lubuski; 2021, 47, 1; 81-92
0485-3083
Pojawia się w:
Rocznik Lubuski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania społeczne przyczynkiem do oceny jakości energetycznej budynków wielkopłytowych w osiedlach mieszkaniowych
End-user survey results as contribution to energy performance assessment of precast panel housing stock
Autorzy:
Ostańska, A.
Powiązania:
https://bibliotekanauki.pl/articles/390707.pdf
Data publikacji:
2014
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
wielka płyta
badania społeczne
ocena energetyczna
partycypacja finansowa
rewitalizacja osiedli mieszkaniowych
precast panel housing
resident survey
energy performance assessment
participation
Opis:
Artykuł przedstawia wyniki badań społecznych przeprowadzonych w jednym z siedmiu osiedli w Lubelskiej Spółdzielni Mieszkaniowej. Badania, zrealizowane na podstawie autorskiego narzędzia, mają na celu rozpoznanie opinii mieszkańców na temat: dotychczasowej termomodernizacji, zakresu możliwych jeszcze działań energetycznych w samych budynkach i na terenie analizowanego osiedla, oraz pobudzenie zainteresowania wpływem na oszczędzanie energii i decyzje inwestycyjne. Badania, prowadzone cyklicznie od 2004 roku w różnych regionach kraju, stanowią część większego projektu badawczego, którego celem jest ocena potencjału możliwego oszczędzania energii i jako jeden z aspektów rewitalizacji wielkich osiedli mieszkaniowych z wielkiej płyty.
The paper presents an analysis of a survey among residents of a housing district in Lublin, Poland. The survey, conducted by means of a bespoke questionnaire, was aimed not only at collecting the end-user input on the effects of maintenance and retrofitting actions completed so far and preferences on future actions, but also to arouse interest in participating in the decision-making process related with improving energy performance of the housing stock. The investigations, being a part of a larger research project started in 2004, are focused on assessing the potential for improvement of the precast panel housing stock which is a typical feature of Poland’s building environment.
Źródło:
Budownictwo i Architektura; 2014, 13, 3; 317-324
1899-0665
Pojawia się w:
Budownictwo i Architektura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance Assessment of Steel Moment Connections Retrofitted With Various Reduced Section Patterns
Autorzy:
Sivandi-Pour, Abbas
Powiązania:
https://bibliotekanauki.pl/articles/396627.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
steel connector
performance assessment
load-bearing systems
reduced beam section
energy damping
cyclic behavior
nonlinear analysis
złącze stalowe
wzmocnienia
system nośny
analiza nieliniowa
Opis:
It is of high importance in seismic retrofitting of lateral load-bearing systems to increase the connections performance. The crucial point in the steel frame retrofitting process is to create plastic hinges in these types of frames. The formation of plastic hinges in beams and near columns generates large strains on column flanges as well as welding metal and heated surroundings, which can lead to brittle failure. The connection should be designed in such a way as to allow plastic hinge formation at certain points of the beam. One such method suggested for retrofit connections is to reduce the beam section locally away from the connection zone. There are various patterns available to locally reduce the beam section, such as circular, elliptical, and symmetric/asymmetric. In recent years, different proposals have been presented to design these connections which vary from older instructions. For this study, radiused cuts in the flange and slotted holes in the web of connection beams were selected for retrofitting analysis. Cyclic behavior, energy damping levels, and ductility of these connections were studied and compared before and after the retrofit by using nonlinear dynamic analysis. The results showed that the symmetrical circular hole pattern in the beam flanges demonstrated reliable performance.
Źródło:
Civil and Environmental Engineering Reports; 2019, 29, 4; 1-17
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy and environmental performance analysis of grid-connected photovoltaic systems under similar outdoor conditions in the Saharan environment
Autorzy:
Deriche, Mohammed Amine
Hafaifa, Ahmed
Tahri, Ali
Mohammedi, Kamal
Tahri, Fatima
Powiązania:
https://bibliotekanauki.pl/articles/328057.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
performance assessment
Saharan outdoor conditions
grid-connected PV
thin film photovoltaic modules
energy payback
greenhouse gases emissions
system fotowoltaiczny
energia
emisja gazów cieplarnianych
ocena wydajności
Sahara
Opis:
The aim of this paper is to present a one-year performance analysis of four grid-connected PV systems installed at Ghardaia city in Algeria’s Sahara. The grid-connected PV systems are based on four different PV module technologies which are: monocrystalline silicon (m-Si), multi-crystalline silicon (mc-Si), cadmium telluride (Cd-Te) and amorphous (a-Si) PV module technologies. The PV systems based on the thin film technologies have their performance ratio better throughout the year when the performance ratio of the mc-Si technology is better in the winter season. The a-Si PV system has its performance ratio about 6.13 % more better than mc-Si and 8.90 % better than m-Si. The AC energy produced with the a-Si PV system is 13.32 % more than what the mc-Si system produces. It was found that the a-Si PV system performs better than the other technologies under the Saharan climate conditions of Ghardaia city. The energy payback time (EPBT) and greenhouse gases (GHG) emissions of the different PV systems were analyzed. The EPBT and GHG emissions per year, vary from a minimum value of 2.8 years to a maximum value of 5.73 years and from 13.24 tons to 32.03 tons of CO2/kWh for CdTe and m-Si respectively. The CdTe PV system performs better in terms of EPBT and GHG emissions compared to the other technologies (m-Si, mc-Si and a-Si) due to its low life cycle energy requirement.
Źródło:
Diagnostyka; 2020, 21, 2; 13-23
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies