Investigation on The Thermal Performance of Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for Air Heating Application

Zakaria, Zairul Azrul; Majid, Zafri Azran Abdul; Harun, Muhammad Amin; Ismail, Ahmad Faris; Ihsan, Sany Izan; Sopian, Kamaruzzaman; Razak, Abdul; Sharol, Ahmad Fadzil

doi:10.37934/arfmts.79.2.4864

Cited by 3 publications

(4 citation statements)

References 24 publications

(29 reference statements)

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“…The wind speed was measured by UNI-T Mini Digital Anemometer (UT363). The solar thermal collector applied in this research namely Evacuated Glass-Thermal Absorber Tube Collector (EGATC) was reported in previous study by Zakaria et al, [32]. The thermal absorber was divided into two (2) parts particularly inner absorber and outer absorber.…”

Section: Methodology 21 Device and Apparatusmentioning

confidence: 99%

Experimental Investigation of Integrated Energy Storage on Thermal Performance Enhancement of Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for Air Heating Application

Zakaria

Majid

Harun

et al. 2022

ARFMTS

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Thermal energy storage (TES) in solar thermal application assist to increase the performance and efficiency of the solar thermal collector system. Various technique has been developed to enhance TES performance such as using water and PCM as energy storage material. Type of material selection and design arrangement also contribute to the performance of solar thermal collector. The aim of this research is to enhance the thermal performance of energy storage on Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for air heating application. The performance study has been conducted to measure the outlet temperature and energy storage rates as per indoor setup under the artificial solar radiation on the effect of parameters such as inner absorber surface area air contact (perforated fins), outer absorber selective coating surface, outer absorber wall thickness, double layer non vacuum glass tube, single layer transparent outer glass tube and single layer thin film inner glass tube. The results showed that the performance of temperature outlet, energy store and energy buffer increase at wind speed 0.9 m/s, zero (0) perforated fin, non-coating outer absorber and 2mm outer absorber wall thickness. It was also demonstrated that a double layer vacuum glass tube showed a better thermal performance enhancement compared with double layer non-vacuum glass tube, single layer transparent outer glass tube and single layer thin film inner glass tube. This concluded that EGATC performance can be increase with those respective parameters.

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Section: Methodology 21 Device and Apparatusmentioning

confidence: 99%

Experimental Investigation of Integrated Energy Storage on Thermal Performance Enhancement of Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for Air Heating Application

Zakaria

Majid

Harun

et al. 2022

ARFMTS

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“…Recently, Zakaria et al [68] proposed an improved evacuated tube design known as the evacuated glass-thermal absorber tube collector (EGATC) that outperformed the heat pipe evacuated tube collector in terms of temperature differences and output temperature. The inner and outer absorbers are the two components that made up the thermal absorber.…”

Section: Number Of Passesmentioning

confidence: 99%

“…Both heat absorbers are incorporated inside the evacuated glass. With the system's double pass flow and preheating flow at the inner absorber, the revolutionary thermal absorber design produces a high cumulative temperature at the output temperature [69].…”

Section: Number Of Passesmentioning

confidence: 99%

Evacuated tubes solar air collectors: A review on design configurations, simulation works and applications

Sulaiman¹,

Ihsan

Bakar

et al. 2023

PROGEE

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One of the primary components of solar energy utilization systems is evacuated tube solar air collectors (ETSACs). The irradiance is absorbed by these collectors, which is then transformed into thermal energy at the absorbing surface before being transmitted to the air passing through the collectors. This type of collector outperforms flat plate collectors in terms of reducing heat loss through conduction and convection and also during cloudy days; thus, ETSACs are the most preferred collectors to be applied for space heating, crop drying, and industrial applications. This review focuses on a summary of design configurations, simulation works, and applications of ETSACs in order to understand the influence of the thermal performance of ETSACs so that these collectors can be applied more effectively. Studies on the use of nanofluids as thermal performance enhancers and phase change materials as thermal storage media can be considered to enhance the thermal performance of ETSACs.

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“…Supankanok et al (2021) [11] improved heat transfer from the aluminum fin to the copper heat pipe by modifying the internal construction of the evacuated tube. Zakaria et al (2022) [12] studied the influence of various factors, such as air contact with the surface area of the internal absorber. Shi et al (2019) [13] performed an analysis of fin structure parameters (fin thickness and fin spacing) in an evacuated tube with phase change material.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of the vacuum solar collector using the analysis of ‎variance method

Majeed,

Khalaf,

Nassir

2023

QJES

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Space and weight constraints, as well as the time lag between energy generation and consumption, ‎are major obstacles to expanding solar water heating systems into existing structures with limited ‎space. It is possible to collect heat with this small, evacuated tube collector (ETC). It was found ‎that the air inside the glass tube has poor thermal conductivity. An experimental and numerical ‎study was performed on an evacuated tube solar collector, incorporating a heat tube with ‎cylindrical fins to increase the contact surface between the air and the fin surface. Statistical ‎analysis software is used to verify the results in practice. The temperature data was investigated ‎using SPSS under the same flow conditions. These figures are from experiments examining the ‎effect of variable volumetric flow rate, boost type, and variance analysis on temperature ‎distribution. When analyzing the results of the trials, a significant threshold of 95% was used. ‎Therefore, we compare the calculated significance to a value of 0.05 to evaluate the efficacy and ‎capabilities of the components. The reliability and validity of the model depend on the presence of ‎two components. If the resulting value is less than the significance level (0.05), then the model can ‎be considered robust and efficient (flow rate and optimization type). If the estimated value is ‎greater than that, the variables do not affect system performance. Flow rate and type of ‎enhancement are the two factors considered in the analysis of variance.

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Investigation on The Thermal Performance of Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for Air Heating Application

Cited by 3 publications

References 24 publications

Experimental Investigation of Integrated Energy Storage on Thermal Performance Enhancement of Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for Air Heating Application

Experimental Investigation of Integrated Energy Storage on Thermal Performance Enhancement of Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for Air Heating Application

Evacuated tubes solar air collectors: A review on design configurations, simulation works and applications

Statistical analysis of the vacuum solar collector using the analysis of ‎variance method

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