Solar powered airport lit. review: Difference between revisions

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• solar cell powered airport
• "solar cell" visible spectrum absorbance
• solar cell to power grid
• solar cell anti-glare

Lit. reivew

1.Chen, D. Anti-reflection (AR) coatings made by sol–gel processes: A review. Solar Energy Materials and Solar Cells 68, 313–336 (2001).

Traditionally, various vacuum-based processes, depending on material systems and properties, and chemical etching process have been used for producing different types of anti-reflection (AR) coating on different substrate materials. In this paper, the development of sol–gel derived AR coating on different substrates for various applications in the past 40 years are reviewed. These coatings possess good uniformity in thickness and properties which have met requirements for various applications. The major approaches to fabricate AR coating and their characteristics have been discussed. This paper outlines the major solution coating processes and design principles of AR coatings. Major fabrication processes used in AR coating technologies have been compared. Different solution chemistries developed for producing different materials for AR coating preparation have been extensively reviewed. The optical performance of different types of sol–gel-derived AR coatings have been summarized and comparison to the commercial AR coating produced by traditional technologies have been discussed. The sol–gel AR coating has been shown to possess comparable or superior performance to those produced by vacuum-based processes.

Notes:

1. Described how to use sol-gel technology to derive AR coating
2. Compared sol-gel derived AR coating to other commercial coating
3. Sol-gel derived AR coating fabrication methods, include dip coating, spin coating and meniscus coating.
4. Described coating on different substrates, like glass or plastic.

Potential contribution to project: Focused on low-cost AR coating may could apply on solar cells in airport to prevent glare.

2.Raut, H. K., Ganesh, V. A., Nair, A. S. & Ramakrishna, S. Anti-reflective coatings: A critical, in-depth review. Energy & Environmental Science 4, 3779 (2011).

Anti-reflective coatings (ARCs) have evolved into highly effective reflectance and glare reducing components for various optical and opto-electrical equipments. Extensive research in optical and biological reflectance minimization as well as the emergence of nanotechnology over the years has contributed to the enhancement of ARCs in a major way. In this study the prime objective is to give a comprehensive idea of the ARCs right from their inception, as they were originally conceptualized by the pioneers and lay down the basic concepts and strategies adopted to minimize reflectance. The different types of ARCs are also described in greater detail and the state-of-the-art fabrication techniques have been fully illustrated. The inspiration that ARCs derive from nature (‘biomimetics’) has been an area of major research and is discussed at length. The various materials that have been reportedly used in fabricating the ARCs have also been brought into sharp focus. An account of application of ARCs on solar cells and modules, contemporary research and associated challenges are presented in the end to facilitate a universal understanding of the ARCs and encourage future research.

Notes:

1. Described how the AR coating works.
2. State-of-the-art fabrication of AR coating.

Potential contribution to project: develop a suitable AR coating which could apply on solar cells in airport to prevent glare.

3.Park, S. H. et al. Bulk heterojunction solar cells with internal quantum efficiency approaching 100%. Nat Photon 3, 297–302 (2009).

We report the fabrication and measurement of solar cells with 6% power conversion efficiency using the alternating co-polymer, poly[N-9-hepta-decanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole) (PCDTBT) in bulk heterojunction composites with the fullerene derivative [6,6]-phenyl C70-butyric acid methyl ester (PC70BM). The PCDTBT/PC70BM solar cells exhibit the best performance of any bulk heterojunction system studied to date, with JSC = 10.6 mA cm-2, VOC = 0.88 V, FF = 0.66 and e = 6.1% under air mass 1.5 global (AM 1.5 G) irradiation of 100 mW cm-2. The internal quantum efficiency is close to 100%, implying that essentially every absorbed photon results in a separated pair of charge carriers and that all photogenerated carriers are collected at the electrodes.

Notes:

1. A successful demonstration that using certain co-polymer could achieve close to 100% internal quantum efficiency in heterojunction solar cells

Potential contribution to project: a better design to solar cell which could apply to the airport.

4.Liu, K. & Makaran, J. Design of a solar powered battery charger. in 2009 IEEE Electrical Power Energy Conference (EPEC) 1–5 (2009). doi:10.1109/EPEC.2009.5420817

A solar powered battery charger is presented, where a photovoltaic (PV) panel is used to convert solar power into electricity and a DC/DC converter is used to control the output power of the PV panel and the charging current for the battery. In the software, an optimal control algorithm is applied to obtain the maximum available power from the sunshine. The simulation and experimental results are presented and compared. The applications of this technique can be light electrical vehicles such as golf carts, scooters, airport utility vehicles, as well as other renewable power stations where batteries are used for energy storage.

Notes

1. Presented how the energy stored from solar cell could be transferred to battery.
2. Shown that how the control and conversion works.

Potential contribution to project: give idea that how to convert energy from solar cell to battery, and provide energy to utilities in airport.

5.Raturi, A., Singh, A. & Prasad, R. D. Grid-connected PV systems in the Pacific Island Countries. Renewable and Sustainable Energy Reviews 58, 419–428 (2016).

Grid connected solar photovoltaic (GCPV) systems are fast becoming a regular feature of electricity power networks in urban and peri-urban areas within most Pacific Island Countries. A number of systems have been installed with many in the pipeline. This relatively new technology, utilizing the intermittent solar energy resource has presented new challenges to small island utilities that were hitherto almost completely dependent on diesel generators and hydropower. The present paper describes the current status of GCPV systems in the Pacific region and reviews some of the issues that arise in the deployment of this technology. It also reports a case study involving a 45 kWp GCPV system located at the University of the South Pacific (USP) marine campus in Fiji. One of the first two GCPV systems established in Fiji, this system has an annual production of ~54,000 kW h and supplies about 10% of the electricity requirements of the campus. The actual system performance agreed well with the simulated results. This system also reduces USP׳s annual carbon footprint by more than 27,000 kg CO2e.

Notes:

1. Described how the energy stored by solar cell converted to grid power system

Potential contribution to project: overcome the technical issue and give the idea how to power the airport by solar panels

6.Kim, I.-S., Kim, M.-B. & Youn, M.-J. New Maximum Power Point Tracker Using Sliding-Mode Observer for Estimation of Solar Array Current in the Grid-Connected Photovoltaic System. IEEE Transactions on Industrial Electronics 53, 1027–1035 (2006).

A new maximum power point tracker (MPPT) for a grid-connected photovoltaic system without solar array current sensor is proposed. The solar array current information is obtained from the sliding-mode observer and fed into the MPPT to generate the reference voltage. The parameter values such as capacitances can be changed up to 50% from their nominal values, and the linear observer cannot estimate the correct state values under the parameter variations and noisy environments. The structure of a sliding-mode observer is simple, but it shows the robust tracking property against modeling uncertainties and parameter variations. In this paper, the sliding-mode observer for the solar array current has been proposed to compensate for the parameter variations. The mathematical modeling and the experimental results verify the validity of the proposed method.

Notes:

1. Using sliding-mode observer to obtain the current information from solar system
2. Replacing the more expensive sensors by the proposed observers

Potential contribution to project: Lower the budget, makes the whole project easier to be achieve

7.Borowy, B. S. & Salameh, Z. M. Optimum photovoltaic array size for a hybrid wind/PV system. IEEE Transactions on Energy Conversion 9, 482–488 (1994).

A methodology for calculation of the optimum size of a PV array for a stand-alone hybrid wind/PV power system is developed. Long term data of wind speed and irradiance recorded for every hour of the day for 30 years were used. These data were used to calculate the probability density functions of the wind speed and the irradiance for each hour of a typical day in a month. The wind speed and irradiance probability density functions and manufacturer's specification on a wind turbine and a PV module were used to calculate the average power generated by the wind turbine and the PV module for each hour of a typical day in a month. The least square method is used to determine the best fit of the PV array and wind turbine to a given load. On the basis of the energy concept an algorithm was developed to find the optimum size of the PV array in the system.

Notes:

1. Proposed a methodology which is how to calculate the optimized size of wind/PV hybrid system

Potential contribution to project: Use similar methodology to find the size we needed in airport project

8.Sharma, S. K., Samuel, K. B., Srinivasamurthy, N. & Agrawal, B. L. Overcoming the problems in determination of solar cell series resistance and diode factor. J. Phys. D: Appl. Phys. 23, 1256 (1990).

A theory has been developed to determine solar cell design parameters in the conventional solar cell equation using measured cell I sc , I mp , V mp and V oc . The theory overcomes the problem of series resistance becoming negative. It is shown that the diode factor a indeed depends upon cell temperature. The theoretical predictions are in good agreement with experimental observations.

Notes:

1. Proposed the theory to determine the resistance and diode factor in solar cell series
2. Demonstrated by experimental data

Potential contribution to project: Determine the properties of the system we designed for airport