An exergy based test protocol for truncated pyramid type solar box cooker

Kumar, Naveen; Ganesan, Vishwanath; Gupta, Anurag

doi:10.1016/j.energy.2011.06.046

Cited by 35 publications

(10 citation statements)

References 20 publications

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“…Therefore, the exergetic efficiency of the solar system for the distillation of AMPs is about 26.62% and is more efficient than 1.25% obtained by Ozturk (Öztürk 2004), when he showed that energy output varied between 20.9 (0.084 kWh) and 78.1 W (0.31 kWh), whereas the exergy output was in the range 2.9-6.6 W (0.011-0.026 kWh) in four hours of operation (Öztürk 2004). The exergetic efficiency obtained in this work is also higher than 0.027% and 0.028% using an truncated pyramid type solar cooker and an solar box cooker respectively (Kumar et al 2011).…”

Section: Exergy Analysismentioning

confidence: 63%

“…Exergy is the useful part of the energy. The exergy balance of the solar distillation system for stable flow conditions depends on the rate of solar exergy delivered by the sun to the concentrator (Ex,in) (Kumar, Vishwanath, and Gupta 2011;Öztürk 2004;Petela 1964), and on the exergy required to heat the water in the still (Ex,out) (Kumar et al 2011…”

Section: Exergy Analysis For Solar Distillation Systemmentioning

confidence: 99%

See 1 more Smart Citation

Study of the Energetic, Exergetic, and Thermal Balances of a Solar System in comparison with a Conventional System during the Distillation of Rosemary Leaves

Ezzarrouqy

Hejjaj

Idlimam

et al. 2021

Preprint

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The solar energy produced by Scheffler parabola (10 m2), is not fully exploited by solar distillation system of Aromatic and Medicinal Plants. In this work, the optical losses in the primary and secondary reflectors, and the thermal losses at each part of this system (distillation still, steam line, condenser) were determined. A thermal energetic and exergetic analysis was also performed for a solar system distillation of rosemary leaves. For average intensity radiation of 849.1W/m2 and 6 Kg of rosemary leaves during 4 hours of distillation, exergy and optical efficiencies of the system achieved up to 26.62% and 50.97%, respectively. The thermal efficiency of the still, steam line and condenser is about 94.80%, 93.08%, and 87.76%, respectively. Total efficiency of the solar distillation system, taking into account the heat losses in the still, steam line, and condenser, as well as the optical losses in the two reflectors, is 39.49%. The efficiency can be as high as 42.42% and if the steam line is insulated. Moreover, the comparison between the Solar Steam Distillation and Conventional Steam Distillation shows that solar distillation is much more efficient since it gives better results, and especially it avoids emission of 12.10 kg of CO2 during extraction.

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Section: Exergy Analysismentioning

confidence: 63%

Section: Exergy Analysis For Solar Distillation Systemmentioning

confidence: 99%

Study of the Energetic, Exergetic, and Thermal Balances of a Solar System in comparison with a Conventional System during the Distillation of Rosemary Leaves

Ezzarrouqy

Hejjaj

Idlimam

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The bottom of the pot is provided with a heat conducting medium and remaining sides of the pot are blackened. The pot is kept at the center of the focus of two parabolic fins . The capacity of the cooker is 5–10 L. The reflector surface is made up of high reflective chromium nickel sheet.…”

Section: System Descriptionmentioning

confidence: 99%

Improvement of Energy Efficiency and Effectiveness of Cooking for Parabolic‐Type Solar Cooker Used with Activated‐Carbon‐Coated Aluminium Cooking Pot

2019

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In India, due to the high price of cooking gases, people still cook with noncommercial fuels like kerosene and firewood. These cause a lot of health problems and also harm the environment. A clean solution to this problem is to use a solar cooker. A solar cooker suffers from the problem of low utility and hence takes a longer period of time for cooking. To counter this problem and reduce cooking time, the solar cooker is tested with charcoal coated utensil. In this paper, a parabolic‐type domestic solar cooker is tested for the same utensil with and without cost effective thermal coating. It is observed that the effectiveness and efficiency of cooking is considerably increased by using the charcoal coating on the utensil. Considering the economic condition of the people of the selected area, this method provides a cost effective way to increase the cooking effectiveness of the solar cooker and reduce dependency on noncommercial fuels.

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“…Kumar et al [65] investigated a truncated pyramid type solar box cooker (TPSBC) in terms of exergy and energy efficiencies. Two cooking vessels which filled 2Litres of water were used for conducting full load test.…”

Section: Review On Energy and Exergy Analysis Of Solarmentioning

confidence: 99%

Performance Assessment of Different Solar Energy Technologies Based on Energy and Exergy Analyses Method: A Review

Ya’u¹

2017

IJSDR

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Renewable energy system usually refers to as an environmentally friendly energy system and most reliable and cost efficient one. Solar energy system is among the renewable energy system sourcing from sun that is freely available in nature. The utilization of renewable energy offers a wide range of exceptional benefits of human life, therefore its necessity for researchers to find ways of increasing the performance of the system in order to satisfy the human needs. In this work, a comprehensive review on performance assessment of different solar energy technologies using energy and exergy analysis approaches was carried out, and some important conclusions were drawn out. Some on the conclusions are energy efficiency for all the solar energy systems have been found to be greater than that of exergy efficiency and exergy analysis method is a very useful tool, especially on performance evaluation of solar energy systems.

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An exergy based test protocol for truncated pyramid type solar box cooker

Cited by 35 publications

References 20 publications

Study of the Energetic, Exergetic, and Thermal Balances of a Solar System in comparison with a Conventional System during the Distillation of Rosemary Leaves

Study of the Energetic, Exergetic, and Thermal Balances of a Solar System in comparison with a Conventional System during the Distillation of Rosemary Leaves

Improvement of Energy Efficiency and Effectiveness of Cooking for Parabolic‐Type Solar Cooker Used with Activated‐Carbon‐Coated Aluminium Cooking Pot

Performance Assessment of Different Solar Energy Technologies Based on Energy and Exergy Analyses Method: A Review

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