Flat plate thermal solar collector efficiency: Transient behavior under working conditions part II: Model application and design contributions

Rodríguez-Hidalgo, M.C.; Rodríguez-Aumente, P.A.; Lecuona, A.; Gutiérrez-Urueta, G.; Ventas, R.

doi:10.1016/j.applthermaleng.2011.04.002

Cited by 46 publications

(11 citation statements)

References 12 publications

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“…At midday, the efficiency reaches a maximum, and afterwards, the tendency is parallel to the collector ENC. The lower values are attributed to effects that are not taken into account by the ENC, such as aging, dust and wind losses [48]. Figure 12 shows the same three efficiencies for the evolution of the entire year.…”

Section: Accepted Manuscriptmentioning

confidence: 61%

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Flat plate thermal solar collector efficiency: Transient behavior under working conditions. Part I: Model description and experimental validation

Rodríguez-Hidalgo

Rodríguez-Aumente

Lecuona

et al. 2011

Applied Thermal Engineering

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The efficiency of a solar collector is a key factor for the performance of thermal facilities. As the weather conditions vary continuously during the day, the instant collector efficiency depends not only on the components employed in its construction but also on the actual environmental conditions, the hot water temperature and aging. An experimental research was performed to describe the transient behavior of a flat plate collector field under outdoor working conditions. A transient collector model was assembled using thermal resistances and capacitances. Three thermocouples were added to measure the centre point temperature of the glass cover, box back surface and absorber plate of one of the

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Section: Accepted Manuscriptmentioning

confidence: 61%

“…The corrections that must be applied as a function of them are shown in Part II of this paper, [48].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Flat plate thermal solar collector efficiency: Transient behavior under working conditions. Part I: Model description and experimental validation

Rodríguez-Hidalgo

Rodríguez-Aumente

Lecuona

et al. 2011

Applied Thermal Engineering

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“…A major problem in generating weather data with fine temporal rate is the substantial cost involved [15]. Even though there is a growing literature that collects and applies energy-weather data with fine temporal rate [16][17][18][19][20][21][22] only a few use such data to study the relationship between energy consumption and weather. For instance, Venegas et al [20] uses 10 min interval data to study the effect of weather on the energy performance (and energy production) of a solar cooling facility.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Their result indicates that energy produced for cooling is highly influenced by solar radiation, wind speed and direction. Rodríguez-Hidalgo et al [17], Rodríguez-Hidalgo et al [18] uses 10 min interval data to study the performance of a solar facility in face of changing weather conditions. Their result indicates that wind speed and direction has the highest effect on the efficiency of energy generated.…”

Section: Literature Reviewmentioning

confidence: 99%

The impact of weather variation on energy consumption in residential houses

Fikru

Gautier

2015

Applied Energy

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“…9, adjusted for subsequent calculation years and determined according to the algorithm (12) Tm, the theoretical efficiency of collectors has been determined [47]:…”

Section: The Calculation Of Solar Yieldsmentioning

confidence: 99%

The sizes of Flat Plate and Evacuated Tube Collectors with Heat Pipe area as a function of the share of solar system in the heat demand

2016

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Abstract. The popularity of solar collectors in Poland is still increasing. The correct location of the collectors and a relatively high density of solar radiation allow delivering heat even in spite of relatively low ambient temperature. Moreover, solar systems used for heating domestic heat water (DHW) in summer allow nearly complete elimination of conventional energy sources (e.g. gas, coal). That is why more and more house owners in Poland decide to install solar system installations. In Poland the most common types of solar collectors are flat plate collectors (FPC) and evacuated tube collectors with heat pipe (ETCHP); both were selected for the analysis. The heat demand related to the preparation of hot water, connected with the size of solar collectors' area, has been determined. The analysis includes FPC and ETCHP and heat demand of less than 10 000 kWh/year. Simulations were performed with the Matlab software and using data from a typical meteorological year (TMY). In addition, a 126-year period of measurements of insolation for Krakow has been taken into account. The HDKR model (Hay, Davis, Klucher, Reindl) was used for the calculation of solar radiation on the absorber surface. The monthly medium temperature of the absorber depends on the amount of solar system heat and on the heat demand. All the previously mentioned data were used to determine solar efficiency. Due to the fact that solar efficiency and solar system heat are connected, the calculations were made with the use of an iterative method. Additionally, the upper limit for monthly useful solar system heat is resulted from the heat demand and thus the authors prepared a model of statistical solar system heat deviations based on the Monte Carlo method. It has been found that an increase in the useful solar system heat in reference to the heat demand is associated with more than proportional increase in the sizes of the analyzed surfaces of solar collector types.

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Flat plate thermal solar collector efficiency: Transient behavior under working conditions part II: Model application and design contributions

Cited by 46 publications

References 12 publications

Flat plate thermal solar collector efficiency: Transient behavior under working conditions. Part I: Model description and experimental validation

Flat plate thermal solar collector efficiency: Transient behavior under working conditions. Part I: Model description and experimental validation

The impact of weather variation on energy consumption in residential houses

The sizes of Flat Plate and Evacuated Tube Collectors with Heat Pipe area as a function of the share of solar system in the heat demand

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