An exergy based unified test protocol for solar cookers of different geometries

Kumar, Naveen; Ganesan, Vishwanath; Gupta, Anurag

doi:10.1016/j.renene.2012.01.085

Cited by 43 publications

(14 citation statements)

References 17 publications

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“…The extraterrestrial beam radiation reaches the ground is: The approximate intensity of solar radiation on the ground at a given location can be measured by calculating the extraterrestrial intensity 0 on a surface that is perpendicular to the sun on a given day of the year, according to N. Kumar, G.Vishwanath, A.Gupta [24]: Where sc = 1367 W/m 2 is the solar constant, and is the zenith angle of the sun, correlated to the altitude angle as (21). In order to calculate the solar radiation G on the inclined PVT collector with β, we have used the following expressions [25]:…”

Section: The Reflectors Equationsmentioning

confidence: 99%

Analysis of thermal-electrical performance of PVT collector with reflectors

Boulaich

Benkaddour

Hamdoun

et al. 2021

IJPEDS

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This work concerns numerical studies of PVT air collector operating in dynamic mode. We presented the temperature of the solar cells and of the air at the outlet of the PVT collector with and without reflectors. The obtained simulation results has been validated by comparating with the experimental results available in literature, where good agreement was been noted. In addition, we determine the optimal position of the reflectors by numerical calculation, in order to obtain the maximal concentration of the solar radiation intensity on PV/T collector. The thermal and electrical efficiency of PV/T collector without reflectors and with reflectors in optimal position have been calculated for composite climate at Tetouan (-5°N, 35.5°E). So, the effect of adding solar reflectors on the electrical and thermal performance is showing.

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Section: The Reflectors Equationsmentioning

confidence: 99%

Analysis of thermal-electrical performance of PVT collector with reflectors

Boulaich

Benkaddour

Hamdoun

et al. 2021

IJPEDS

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“…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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“…The exergy of a device is the measure of its potential to derive heat from the surrounding [3]. The exergy efficiency is the ratio of the exergy input to the system to the exergy output of the system.…”

Section: Exergy Efficiency and Quality Factormentioning

confidence: 99%

Extensive Performance Evaluation of Dual Booster Mirror Solar Cooker under Tracking Free Conditions

Irfan¹

2019

IJEW

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The aim of this research work is to conduct an extensive performance evaluation of a box type dual Booster Mirror solar cooker under tracking free conditions. To cope up with the need for continuous adjustment of the cooker during the cooking operation the optimal tilt angles of the Booster Mirrors have been calculated through numerical calculations for the location of 34 0 latitude. To evaluate the Performance parameters of the cooker, tests under tracking free conditions have been carried out and parameters such as, First and Second Figure of Merit, Cooking power, exergy efficiency and the Quality Factor, are evaluated for the BSC. Moreover, the cooker is tested onfield and different types of food items are cooked. The results indicate that orienting the Booster Mirrors at their respective optimal angles provides a viable and convenient alternative to the need for continuous tracking of the sun during cooking hours. With this technique the said cooker can be used for cooking 6.4 kg of 6 different dishes in a single day i-e. from 9:00 Am to 3:00 Pm in two batches.

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An exergy based unified test protocol for solar cookers of different geometries

Cited by 43 publications

References 17 publications

Analysis of thermal-electrical performance of PVT collector with reflectors

Analysis of thermal-electrical performance of PVT collector with reflectors

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

Extensive Performance Evaluation of Dual Booster Mirror Solar Cooker under Tracking Free Conditions

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