Novel method of thermal behavior prediction of evacuated tube solar collector

Nokhosteen, Arman; Sobhansarbandi, Sarvenaz

doi:10.1016/j.solener.2020.05.008

Cited by 13 publications

(3 citation statements)

References 39 publications

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“…They found that the best performance gain was achieved by using hybrid heat pipes with fins or metal foam and that using hybrid nanoparticles with metal foam or fins was more effective than using only nanoparticles. Nokhosteen and Sobhansarbandi [11] developed a modified resistance network (RN) model which accounted for ambient conditions and angular distribution of solar radiation on the periphery of the HP-ETSC to predict the temperature distribution and average fin temperature of the collector, reporting the maximum error of the model as 10%. Elsheniti et al [12] developed a theoretical model to predict the performance of the ETSC.…”

Section: Introductionmentioning

confidence: 99%

“…One of the greatest difficulties of simulating the solar thermal collecting system accurately is unreliable solar irradiance during the day, which directly relates to the amount of energy absorbed and transferred through the evacuated tube. Many researchers have developed theoretical models to predict the solar collector performance by estimating the heat absorbed from solar irradiance, which sometimes unpredictably fluctuates based on thermal radiation and heat transfer via heat pipe based on heat transfer principles [9,11,12]. In this manner, many complicated heat transfer equations with complicated thermal resistance networks inside the HP-ETSC must be set up and solved.…”

Section: Introductionmentioning

confidence: 99%

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Simple Empirical Relation for an Evacuated-Tube Solar Collector Performance Prediction from Solar Intensity

Pongboriboon,

Wu,

Chandra-ambhorn

et al. 2023

Energies

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In this paper, the effect of solar intensity on the heat pipe tip temperature in a heat pipe type—evacuated-tube solar collector (HP-ETSC) was investigated. A simple relation was proposed, relating the solar intensity to the heat pipe tip temperature generated from the experimental data. This simple empirical relation was applied in a set of heat transfer equations derived to predict the heating medium temperature at the manifold outlet of the evacuated-tube solar collector. The calculated results corresponding to two types of heating medium, i.e., palm oil and water, were compared with experimental results from the literature. The results show that the average error was 6.41% for the case of palm oil and 4.66% for the case of water. Based on the case of water as a heating medium fluid, it was found that the flow rate of the heating medium fluid affected the accuracy of prediction, as the percentage error increased with the heating medium flow rate. The maximum percentage error increased from only 1.83% for a water inlet flowing at a Reynolds number of about 2.4 × 103 to 15.23% for a water flow rate at a Reynolds number of about 2.6 × 104. The correction factor was added into the correlation to predict the heat transfer coefficients of heating medium fluids. With this correction factor, the maximum error could be reduced from 11.78% to 7.29% for the palm oil case and from 15.23% to 5.57% for the water case. The average errors corresponding to palm oil and water cases could be reduced to 0.74% and 1.26%, respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simple Empirical Relation for an Evacuated-Tube Solar Collector Performance Prediction from Solar Intensity

Pongboriboon,

Wu,

Chandra-ambhorn

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…Bhave and Kale (2020) used a phase change material solar salt and proved the possibility of frying and cooking in the shade inside the kitchen. Nokhosteen and Sobhansarbandi (2020) adopted the Resistance Network (RN) model to predict the performance on solar collectors using heat pipe evacuated tube. Results of a model was in excellent agreement with the experimental work with a minimum error of 10%.…”

Section: Introductionmentioning

confidence: 99%

Microcontroller PIC 16F877A Standard based on Solar Cooker using PV- Evacuated Tubes with an Extension of Heat Integrated Energy System

Shanmugan¹,

Chithambaram²,

Bennet

et al. 2021

Preprint

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The unavailability of sunlight during nighttime and cloudy weather condition has limited the usage of solar cookers throughout the day. This study will attempt to engineer a solar cooker with PV (Photovoltaic panel), evacuated tubes with CPC reflectors, battery and charge controller using the microcontroller PIC 16F877A. A mathematical model is developed to predict the electrical power (Ep) required during cloudy weather condition and nighttime as well as the temperatures occurring at different parts of the cooker. The proposed model is validated against experimental observations gathered for one of the typical working days of the system. The cooker is tested for various cooking loads to find the cooking time and it is proven that the proposed cooker can be utilized over 24/7 without interruption.

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Microcontroller PIC 16F877A standard based on solar cooker using PV—evacuated tubes with an extension of heat integrated energy system

Prabu

Chithambaram²,

Bennet

et al. 2021

Environ Sci Pollut Res

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The unavailability of sunlight during nighttime and cloudy weather condition has limited the usage of solar cookers throughout the day. This study will attempt to engineer a solar cooker with PV (Photovoltaic panel), evacuated tubes with CPC reflectors, battery and charge controller using the microcontroller PIC 16F877A. A mathematical model is developed to predict the electrical power (Ep) required during cloudy weather condition and nighttime as well as the temperatures occurring at different parts of the cooker. The proposed model is validated against experimental observations gathered for one of the typical working days of the system. The cooker is tested for various cooking 22 loads to find the cooking time and it is proven that the proposed cooker can be utilized over 24/7 without interruption.

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Novel method of thermal behavior prediction of evacuated tube solar collector

Cited by 13 publications

References 39 publications

Simple Empirical Relation for an Evacuated-Tube Solar Collector Performance Prediction from Solar Intensity

Simple Empirical Relation for an Evacuated-Tube Solar Collector Performance Prediction from Solar Intensity

Microcontroller PIC 16F877A Standard based on Solar Cooker using PV- Evacuated Tubes with an Extension of Heat Integrated Energy System

Microcontroller PIC 16F877A standard based on solar cooker using PV—evacuated tubes with an extension of heat integrated energy system

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