Two-dimensional finite difference-based model for coupled irradiation and heat transfer in photovoltaic modules

Aly, Shahzada Pamir; Ahzi, Saı̈d; Barth, Nicolas; Figgis, Benjamin

doi:10.1016/j.solmat.2017.06.055

Cited by 41 publications

(18 citation statements)

References 30 publications

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“…These parameters have a different impact on the temperature value; therefore, some of them are essential to be considered when constructing the thermal model. Following is a list of these parameters [4,5,13,[18][19][20][21][22][23].…”

Section: Parameters That Affect the Pv Module Thermal Behaviourmentioning

confidence: 99%

“…Even in case it is not explicitly mentioned, the majority of the existing models share common assumptions, which are listed as follows [3,4,[6][7][8][9]18,22,31,34,41].…”

Section: Energy Balance and Heat Transfer Mechanismsmentioning

confidence: 99%

“…Therefore, it is insufficient to rely only on the rated efficiency to estimate the output power. One has to consider the operating temperature of the PV module as well as other environmental conditions and structural parameters [4]. The temperature of the PV module is affected by the module material compositions, mounting structure and the environmental conditions [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Multiple heat sources are physically contributing to the increment of the module temperature [5]. The first is the incoming short-wave solar irradiance, where only up to 20% will be converted to electrical energy, and the rest will be converted to thermal energy [4,7]. The second heat source is the long-wave infrared radiation.…”

Section: Introductionmentioning

confidence: 99%

“…Dimensional analysis of the PV module [4,6,23,34,39]. This type of modelling will provide the capability to investigate the temperature profile and its changing rate through the PV module structure, including different thermal loss mechanisms as boundary conditions.…”

mentioning

confidence: 99%

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A Novel Method for Thermal Modelling of Photovoltaic Modules/Cells under Varying Environmental Conditions

2020

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Temperature has a significant effect on the photovoltaic module output power and mechanical properties. Measuring the temperature for such a stacked layers structure is impractical to be carried out, especially when we talk about a high number of modules in power plants. This paper introduces a novel thermal model to estimate the temperature of the embedded electronic junction in modules/cells as well as their front and back surface temperatures. The novelty of this paper can be realized through different aspects. First, the model includes a novel coefficient, which we define as the forced convection adjustment coefficient to imitate the module tilt angle effect on the forced convection heat transfer mechanism. Second, the new combination of effective sub-models found in literature producing a unique and reliable method for estimating the temperature of the PV modules/cells by incorporating the new coefficient. In addition, the paper presents a comprehensive review of the existing PV thermal sub-models and the determination expressions of the related parameters, which all have been tested to find the best combination. The heat balance equation has been employed to construct the thermal model. The validation phase shows that the estimation of the module temperature has significantly improved by introducing the novel forced convection adjustment coefficient. Measurements of polycrystalline and amorphous modules have been used to verify the proposed model. Multiple error indication parameters have been used to validate the model and verify it by comparing the obtained results to those reported in recent and most accurate literature.

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Section: Parameters That Affect the Pv Module Thermal Behaviourmentioning

confidence: 99%

“…Even in case it is not explicitly mentioned, the majority of the existing models share common assumptions, which are listed as follows [3,4,[6][7][8][9]18,22,31,34,41].…”

Section: Energy Balance and Heat Transfer Mechanismsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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A Novel Method for Thermal Modelling of Photovoltaic Modules/Cells under Varying Environmental Conditions

2020

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New system designed for monitoring of solar radiation in urban areas

Iwase

Takenaka

2022

Energy Science & Engineering

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This study describes the estimation of solar radiation from photovoltaic (PV) power generation in smart streetlights (SSL) with a heat transfer model. The distribution of solar radiation is important for managing PV power generation. In particular, the demand for electricity for air conditioners and lighting in urban areas is large, so it is a major target for reducing greenhouse gases by introducing PV power. Solar radiation data that includes information on building shadows and reflections can be obtained by high‐density sampling in urban areas using SSL. These data, which include the three‐dimensional effects of urban structures such as buildings, can help urban planning to incorporate PV power generation. Diverse monitoring data in addition to urban canopy top solar radiation data will accelerate the introduction of PV power. The thermal state of the PV panel is an uncertain factor that links solar radiation and PV power generation. Here, we investigate an hourly constant model, a steady‐state model, and two nonsteady state models with daily and monthly intervals for predicting solar radiation from PV power generation at two locations over one winter month. Solar radiation is estimated by evaluating solar cell temperature, except for the hourly constant model. For the nonsteady‐state model, two types of heat transfer model, which consider only wind speed or both wind speed and direction for convection, are used. The model that includes wind speed and direction calculated by a Joukowski transform is effective, and the highest model accuracy is a mean absolute percentage error of less than 6.3% for the monthly average.

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Practical design of an optical filter for thermal management of photovoltaic modules

Lizcano,

Kaaya,

Ziar

et al. 2024

Progress in Photovoltaics

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This work presents a practical approach to designing an optical filter for thermal management for photovoltaic modules. The approach emphasizes the practicality of manufacturing over optical performance. Simulation work demonstrates that, for an interdigitated back contact solar cell architecture, complete rejection of infrared radiation offers limited thermal benefits requiring highly complex optical filter designs. An alternative approach consists of reducing thermalization losses by providing reflectance at lower wavelength values. An optical filter design that fulfills this requirement is possible using simple structures based on two materials and taking advantage of the harmonics present in quarter wavelength optical thickness designs. The filter is later optimized for angular performance via second‐order algorithms, resulting in a device consisting of only 15 thin‐film layers. Performance simulations on two locations, Delft (the Netherlands) and Singapore, estimate a temperature reduction of 2.20°C and 2.45°C, respectively. In a single year, the optical loss produced by the filter is not compensated via temperature reduction. However, improvements in the annual degradation rate show that in Singapore, the overall effect of the filter on the lifetime DC energy yield is positive.

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Two-dimensional finite difference-based model for coupled irradiation and heat transfer in photovoltaic modules

Cited by 41 publications

References 30 publications

A Novel Method for Thermal Modelling of Photovoltaic Modules/Cells under Varying Environmental Conditions

A Novel Method for Thermal Modelling of Photovoltaic Modules/Cells under Varying Environmental Conditions

New system designed for monitoring of solar radiation in urban areas

Practical design of an optical filter for thermal management of photovoltaic modules

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