Numerical analysis on the thermal performance of a roof-integrated flat-plate solar collector assembly

Kang, Myeong-Cheol; Kang, Yong-Heack; Lim, Sang-Hoon; Chun, Wongee

doi:10.1016/j.icheatmasstransfer.2006.04.013

Cited by 16 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Efficiency is the ratio of output heat of the collector to the input heat of the collector and recorded in percentage (%). The efficiency of the collector was calculated with the equation (3) by the method of Kang et al (2006), where Þ is efficiency of the collector in (%), E o is heat output of the collector in (kJ.min −1 ) and E i is heat input of the collector in (kJ.min −1 ): …”

Section: Methodsmentioning

confidence: 99%

Impact of drying method of figs with small-scale flat-plate solar collector

Ullah

Kang

Hassan

et al. 2016

WJE

View full text Add to dashboard Cite

Purpose The purpose of the study was to develop a performance flat-plate solar collector that would be used as a solar drier for fruit fig (Ficus carica L). This study proposes how and why solar energy is important for drying the agricultural products. This study aims to expand the domain of solar collector for different purposes and, most important, for agricultural resource normally found in the literature. Design/methodology/approach The paper opted for an exploratory study using the flat-plate solar collector with drying chamber for drying purposes of agricultural products. During the experiment, the data were collected with moisture content, drying rate of the product and solar irradiation falls on the collector. Findings This paper describes that how flat-plate collector works for agricultural products and how to reduce the moisture content in the product (fig). Efficiency of collector was evaluated under the ambient temperatures of 24°C. Efficiency also significantly increased from 53 to 55 per cent with an increase in ambient temperature from 22 to 24 °C. Figs (Ficus carica L) were dried in the drying chamber of the flat-plate solar collector. The products were dried at temperature of 55-65°C and 15 to 20 per cent humidity. Research limitations/implications Because of this research chosen, the research results are beneficiary for agricultural users for drying purposes. Therefore, the researchers are encouraged to dry the agricultural product with flat-plate solar collector, because it reduced the moisture content of the product very fast. Originality/value This paper fulfills an identified need to study that how flat-plat solar collector can be used.

show abstract

Section: Methodsmentioning

confidence: 99%

Impact of drying method of figs with small-scale flat-plate solar collector

Ullah

Kang

Hassan

et al. 2016

WJE

View full text Add to dashboard Cite

show abstract

“…Heat output and input ratio of the collector is to be finding the efficiency of the collector. The collector efficiency was calculated with the following equation 2 in percentage (%), studied by Kang [26].…”

Section: Data Collection Producersmentioning

confidence: 99%

Integrated Use of Flat Plate Solar Collector for the Dehydration Process of Fruit

Khan¹,

Min²

2017

Ann Bio Sci

View full text Add to dashboard Cite

A solar collector connected to a drying chamber was constructed from available local materials (wood, metal and glass sheet) and designed for the purpose of drying of fruits, i.e., Apples and the solar collector transferred 552 Kj.m -2 .h -1 heats to the drying chamber for drying fruits in the year, 2016. The fruit crop was determined by the final moisture content of <10% and was preserved for one year without deterioration. From the result, the efficiency of the solar collector was measured 30%, 25% and 23% in the months of October, November, and December respectively and from the results, it was clearly stated that the solar collector was better for drying purposes. From the experimental results, it was concluded, that increasing the solar radiation and ambient temperature, the collector efficiency increased significantly. So it was recommended to dry the fruits by FPSC drying chamber from 09:00 AM to 04:00 PM with the decreasing of drying rate of the product up to 0.011 g.(H 2 O).g -1 (d. m).cm -2 .h -1 . Furthermore, it was recommended to cut the fruits into pieces and dried by the FPSC drying chamber for quick drying, good quality and taste of the dried fruits. At last, the samples were examined after 6 months; there was no attack found of insect and no spoilage result and a little difference were found in the color from lighter to darker transmittance.

show abstract

“…Meanwhile, Billy [19] reported that an aluminum absorber thickness of 2 mm was preferred for FPSC. The thickness of the flat plate absorber-collector significantly affects the thermal efficiency of an FPSC [20]. The fact absorber or influencing the solar energy absorber by the flat plate absorber-collector is the transmittance of heat through the glass cover to trap radiated heat from the flat plate absorber-collector [21].…”

Section: Introductionmentioning

confidence: 99%

Study on Selection of a Suitable Material and The Parameters for Designing a Portable Flat Plate Base-Thermal Cell Absorber (FPBTCA)

Harun

Majid

Zakaria

et al. 2021

ARFMTS

View full text Add to dashboard Cite

Several types of flat plate solar collectors have been designed and developed with various technical parameters involved in the design. The inappropriate flat plate solar collector parameter design and material chosen will affect its performance. Investigation on the effect of flat plate absorber collector material, glass thickness, air gap distance, thermal cell absorber thickness, and flat plate absorber base collector thickness on the performance of solar thermal collectors was conducted in this work. The experiment was performed using the solar simulator with solar radiation of 450 and 750 W/m2. The flat plate absorber collector materials used in this experiment were stainless steel 304 and aluminum. The glass thickness used in this experiment was 2.0, 3.0, 4.0, 5.0, and 10.0 mm. The air gap between the flat plate absorber and glass used in this experiment was 0, 5.0, 10.0, 20.0, and 30.0 mm. The stainless steel thermal cell absorber thickness applied in this experiment was 0.5, 1.0, and 2.0 mm. Meanwhile, the aluminum flat plate base absorber base collector thickness was 0.5, 0.8, and 1.0 mm. The results showed that the 2.0 mm glass thickness has the maximum flat plate absorber temperature (88.1 oC at t = 600 s), high heat gain rate (0.097 oC/s), and the highest total heat gain (1207.33 J). The results also revealed that the air gap distance of 10 mm achieved the maximum flat plate absorber temperature (64.6 oC at t = 600 s), the highest heat gain rate (0.058 oC/s), and the highest total heat gain (4750.92 J). The stainless steel thermal cell absorber thickness of 1.0 mm has the thermal cell absorber temperature of 76.2 oC at t = 600 s and a high heat gain rate at 0.08 oC/s. The aluminum flat plate base absorber achieved the highest flat plate absorber temperature (67.2 oC at t = 600 s) and the highest heat gain rate (0.062 oC/s). By using double glass as glass cover increase the flat plate absorber temperature (76.3 oC at t = 600 s) and the highest heat gain rate (0.077 oC/s). This research aims to produce a flat plate absorber with better energy storage, i.e., the performance of the stainless steel plate absorber is better than aluminum with the same thickness. Although the stainless steel flat plate absorber collector showed a lower temperature than aluminum, it has a higher temperature drop than the latter.

show abstract

Numerical analysis on the thermal performance of a roof-integrated flat-plate solar collector assembly

Cited by 16 publications

References 3 publications

Impact of drying method of figs with small-scale flat-plate solar collector

Impact of drying method of figs with small-scale flat-plate solar collector

Integrated Use of Flat Plate Solar Collector for the Dehydration Process of Fruit

Study on Selection of a Suitable Material and The Parameters for Designing a Portable Flat Plate Base-Thermal Cell Absorber (FPBTCA)

Contact Info

Product

Resources

About