An improved algorithm for photovoltaic system sizing

Nikhil, P G; Subhakar, D.

doi:10.1016/j.egypro.2011.12.1066

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…La energía total requerida (𝐸 𝑅 ) es igual a 1100 Wh/día. Considerando una eficiencia del inversor/controlador (𝜂 𝑖/𝑐 ) y del banco de batería (𝜂 𝐵 ) del 90 % y la pérdida de los cables del 3 % (𝜂 𝑐 = 97%) [24], la energía para generar por día (𝐸 𝐺 ) se puede determinar mediante la ecuación 9 [22], [24], [25].…”

Section: Dimensionamiento De Los Sistemas Fotovoltaicos Del áRbol Solarunclassified

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Diseño de un árbol solar para la seccional del Bajo Cauca de la Universidad de Antioquia

et al. 2022

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En este trabajo se presenta el diseño conceptual y de detalle de una estructura de metal que asemeja un árbol real con ramas, en cuya parte superior se ubican paneles solares fotovoltaicos. La energía generada será usada para cargar baterías de móviles, tabletas y computadoras portátiles de la comunidad universitaria de la seccional del Bajo Cauca de la Universidad de Antioquia, localizada en las coordenadas de latitud 7,990584° y longitud −75,193100°. Para el diseño del árbol, inicialmente, se realizó una estimación del recurso solar en la seccional, por lo que se estableció que el promedio anual de las horas solar pico fue equivalente a 18,74 MJ/m2. Con base en un requerimiento energético diario de 1400 Wh/día, se determinó que el número de paneles a instalarse de 180 Wp es de 2. La estructura del árbol fue analizada numéricamente utilizando un software de elementos finitos con el fin de determinar las tensiones y deformaciones debidas a las cargas externas y a su propio peso para garantizar su integridad estructural. El diseño presentado constituye una estructura portátil que puede producir energía verde y proporcionar un lugar de encuentro en la seccional del Bajo Cauca.

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Section: Dimensionamiento De Los Sistemas Fotovoltaicos Del áRbol Solarunclassified

“…Donde 𝐼 𝑚𝑝 es la corriente para máxima potencia. El número de módulos a ser conectados en serie (𝑁 𝑚𝑠 ) se calcula empleado la ecuación 15 [24], [25].…”

Section: Dimensionamiento De Los Sistemas Fotovoltaicos Del áRbol Solarunclassified

Diseño de un árbol solar para la seccional del Bajo Cauca de la Universidad de Antioquia

et al. 2022

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“…It is designed to meet the total AC connected load in watts. The inverter power output required is therefore determined by [51]:…”

Section: Vapor Compression Refrigeration System (Vcrs)mentioning

confidence: 99%

“…The required output of the PV array is therefore calculated using Eq. 3 [51]. The PV array was assumed to be at an optimum fixed tilt angle with no shading and a derating factor of 0.82 [55].…”

Section: Vapor Compression Refrigeration System (Vcrs)mentioning

confidence: 99%

A risk-adjusted techno-economic analysis for renewable-based milk cooling in remote dairy farming communities in East Africa

2019

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The dairy industry accounts for 9-14% of East Africa's agricultural gross development product. Due to lack of milk cooling facilities, dairy farmers in areas without access to reliable grid electricity face problems of high milk spoilage and limited access to formal markets, which limits their income and standard of living. This article examines the economic viability for a number of configurations of off-grid solar, wind, biomass and biogas based milk-cooling systems serving a community in Tanzania. Key risk factors having the greatest impact on system viability are identified and a stochastic approach, by means of a Monte Carlo simulation is employed to determine the risk-adjusted economic performance of the project. The results indicate that biogas based systems offer the most viable option, with an internal rate of return of around 25%, a net present value of around $9,000 and a projected increase in farmers' monthly income of at least 78%. Despite specific risk factors, the 300-liter cooling system had an 82% probability of a positive net present value. However, larger system cooling capacities have a significant likelihood of a financial loss. Consequently, risk mitigation strategies designed to increase the probability of economic success are proposed.

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“…Thus, a wrong sizing might lead to an economic waste and further affect the utilization of solar cells and the pollution-free PV energy [13]. An improved algorithm method based on considering the battery rate factor was used by Nikhil and Subhakar [14]. That approach helped reducing the excess battery requirements without affecting the load.…”

Section: Proceedings Of the 2015 International Conference On Industrimentioning

confidence: 99%

Rural electrification using a stand-alone photovoltaic system: Case study of Cameroon

Adam

Galal

Hamad

2015

2015 International Conference on Industrial Engineering and Operations Management (IEOM)

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This paper studies the use of a stand-alone photovoltaic system as a means of electrifying a village in the Far North region of Cameroon. The village is currently relying on a diesel generator. The load demand covers electricity supply and water pumping for domestic and agricultural purposes. Sizing, design and cost analysis of a stand-alone photovoltaic system are carried out. The economic viability and environmental impact of the proposed system are investigated using RETScreen software. The results indicate that the proposed system introduces cost and emissions savings in comparison with the existing conventional electricity generation technology.

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An improved algorithm for photovoltaic system sizing

Cited by 9 publications

References 9 publications

Diseño de un árbol solar para la seccional del Bajo Cauca de la Universidad de Antioquia

Diseño de un árbol solar para la seccional del Bajo Cauca de la Universidad de Antioquia

A risk-adjusted techno-economic analysis for renewable-based milk cooling in remote dairy farming communities in East Africa

Rural electrification using a stand-alone photovoltaic system: Case study of Cameroon

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