1D model for the energy yield calculation of natural convection solar air collectors

Demou, Andreas D.; Grigoriadis, D.G.E.

doi:10.1016/j.renene.2017.12.030

Cited by 12 publications

(5 citation statements)

References 12 publications

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“…As the glass thickness is usually thin enough, the glass temperature is considered constant along the thickness. For an ordinary glass, the temperature generally varies very little along the width, so the uniform assumption and the one-dimension assumption are commonly used in the modeling [15,30,75,87]. However, for a particular glass, e.g.…”

Section: Modeling Methods Of Trombe Wall Researchmentioning

confidence: 99%

“…can be calculated by multiplying the quantity of energy consumption of a Trombe wall by its unit CO2 emissions. [15,27,[29][30][31]43,44,47,53,59,69,70,72,[75][76][77]80,81,83,85,87,93,105,114,[130][131][132][133]136,138,139,153,179,184,186,193,204,[211][212][213][214], heating load reduction [16,53,61,107,114,117,123,148,169,…”

Section: Outdoor Environmentmentioning

confidence: 99%

“…Therefore, it has attracted increasing attention from scholars and engineers. Several scientific studies on Trombe wall have been carried out with regard to structure retrofit [14], modeling method [15], design method [12], optimization [16] and engineering practice [17]. These studies have provided significant support for the development and applications of Trombe wall.…”

Section: Introductionmentioning

confidence: 99%

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Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

Wang

et al. 2020

Renewable and Sustainable Energy Reviews

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Solar energy building applications are attracting increasing attention from researchers, engineers, businessmen and officials due to their significant benefits in sustainable development, such as energy saving, cost reduction and environmental protection. Trombe wall, as a classical passive solar heating technique, has been studied for many years. A variety of concepts, methodologies and experiences have been developed during relevant research. Especially in recent years, numerous studies on Trombe wall have been published, which implies a rising attention to this technique. This review focuses on the classification, experimental assessment, modeling methods, and evaluation metrics for Trombe wall. In detail, nine types of Trombe walls are introduced according to their materials, structures and functions. Four experimental methods and two modeling methods of Trombe wall are discussed based on their functions, advantages, disadvantages, and applicability. Three aspects of evaluation metrics for Trombe wall are summarized in terms of technique, economy and environment. Moreover, the current and future research of Trombe wall are discussed at the end. The authors consider this article would be useful for their peers and can facilitate the technical development of Trombe wall.

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Section: Modeling Methods Of Trombe Wall Researchmentioning

confidence: 99%

Section: Outdoor Environmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

Wang

et al. 2020

Renewable and Sustainable Energy Reviews

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“…Predicted results showed that the solar collector with double glazing has better thermal performance than a single glass. Demou and Grigoriadis [13] presented a seasonal energy model of the air heater, which utilizes the meteorological data, geometrical materials, and solar orientation. This model was built to predict temperatures, heat transfer, efficiency, absorber-cover spacing, absorber material, and orientation.…”

Section: Introductionmentioning

confidence: 99%

Thermal behavior of natural convection flow in an inclined solar air heater

Neama¹,

Mustafa²

2020

JMES

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The thermal behavior of hot air in a natural convection mode on a solar absorber-plate has not been, so far, modeled experimentally. The present work aimed to assess the performance of the inclined solar air heater [SAH] experimentally by investigating the temperature distribution field in the natural convection flow. The solar plate collector is designed based on the aspect ratio of length to height, L / H, of 6 and 12. The measurements are carried out for the collector tilt angles of 30°, 45°, 60° and 75°. The present investigation demonstrates the temperature distribution of hot air floated in an inclined channel of the SAH. The investigation showed 2D thermal stratification increases when increasing the distance along the collector plate, which looks clear in the SAH with a height of 10 cm. The results of the study show that the thickness of the thermal layers increases with increasing the tilt angle from 30˚ to 75˚. The reason dates back to increasing the buoyancy force of the hot air over the absorber. The results demonstrated that the air temperatures for the height of 0.1 m and 45˚ tilt angle are higher than that for the height of 0.2 m by 23%.

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“…The instantaneous indicators and variability factors were defined to represent the deviations between the instantaneous and the global values of efficiency and performance coefficient. Sun et al (2016) proposed a mathematical model of the coupled momentum and energy for the SAC.The finite-difference approach is adopted to solve the model Demou and Grigoriadis (2018). established a one-dimensional model for the SAC, considering the meteorological parameters, collector materials, geometric parameters and orientation.They calculated the operating temperatures and heat transfer rates of the collector using the one-dimensional model during a whole heating period.…”

mentioning

confidence: 99%

A comparative study on the performance of a novel triangular solar air collector with tilted transparent cover plate

et al. 2021

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1D model for the energy yield calculation of natural convection solar air collectors

Cited by 12 publications

References 12 publications

Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

Thermal behavior of natural convection flow in an inclined solar air heater

A comparative study on the performance of a novel triangular solar air collector with tilted transparent cover plate

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