Drying of malaysian capsicum annuum L. (Red Chili) dried by open and solar drying

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

This study evaluated the performance of solar drying in the Malaysian red chili (Capsicum annuum L.). Red chilies were dried down from approximately 80% (wb) to 10% (wb) moisture content within 33 h. The drying process was conducted during the day, and it was compared with 65 h of open sun drying. Solar drying yielded a 49% saving in drying time compared with open sun drying. At the average solar radiation of 420 W/m2 and air flow rate of 0.07 kg/s, the collector, drying system, and pickup demonstrated efficiency rates of approximately 28%, 13%, and 45%, respectively. Evaporative capacity ranged from 0.13 to 2.36 kg/h, with an average of 0.97 kg/h. The specific moisture extraction rate (SMER) of 0.19 kg/kWh was obtained. Moreover, the drying kinetics of C. annuum L. were investigated. A nonlinear regression procedure was used to fit three drying models. These models were compared with experimental data on red chilies dried by open sun drying and those dried by solar drying. The fit quality of the models was evaluated using their coefficient of determination (R 2), mean bias error, and root-mean-square error values. The Page model resulted in the highest R 2 and the lowest mean bias and root-mean-square errors.

Original languageEnglish
Article number167895
JournalInternational Journal of Photoenergy
Volume2013
DOIs
Publication statusPublished - 2013

Fingerprint

drying
Drying
Sun
sun
root-mean-square errors
Mean square error
Moisture
Pickups
air flow
solar radiation
Solar radiation
moisture
accumulators
moisture content
regression analysis
flow velocity
Flow rate
Kinetics
sensors
kinetics

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)

Cite this

@article{5b5e66bb56e446c69c1c13b9c8f371a1,
title = "Drying of malaysian capsicum annuum L. (Red Chili) dried by open and solar drying",
abstract = "This study evaluated the performance of solar drying in the Malaysian red chili (Capsicum annuum L.). Red chilies were dried down from approximately 80{\%} (wb) to 10{\%} (wb) moisture content within 33 h. The drying process was conducted during the day, and it was compared with 65 h of open sun drying. Solar drying yielded a 49{\%} saving in drying time compared with open sun drying. At the average solar radiation of 420 W/m2 and air flow rate of 0.07 kg/s, the collector, drying system, and pickup demonstrated efficiency rates of approximately 28{\%}, 13{\%}, and 45{\%}, respectively. Evaporative capacity ranged from 0.13 to 2.36 kg/h, with an average of 0.97 kg/h. The specific moisture extraction rate (SMER) of 0.19 kg/kWh was obtained. Moreover, the drying kinetics of C. annuum L. were investigated. A nonlinear regression procedure was used to fit three drying models. These models were compared with experimental data on red chilies dried by open sun drying and those dried by solar drying. The fit quality of the models was evaluated using their coefficient of determination (R 2), mean bias error, and root-mean-square error values. The Page model resulted in the highest R 2 and the lowest mean bias and root-mean-square errors.",
author = "Ahmad Fudholi and Othman, {Mohd. Yusof} and Ruslan, {Mohd Hafidz} and Kamaruzzaman Sopian",
year = "2013",
doi = "10.1155/2013/167895",
language = "English",
volume = "2013",
journal = "International Journal of Photoenergy",
issn = "1110-662X",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - Drying of malaysian capsicum annuum L. (Red Chili) dried by open and solar drying

AU - Fudholi, Ahmad

AU - Othman, Mohd. Yusof

AU - Ruslan, Mohd Hafidz

AU - Sopian, Kamaruzzaman

PY - 2013

Y1 - 2013

N2 - This study evaluated the performance of solar drying in the Malaysian red chili (Capsicum annuum L.). Red chilies were dried down from approximately 80% (wb) to 10% (wb) moisture content within 33 h. The drying process was conducted during the day, and it was compared with 65 h of open sun drying. Solar drying yielded a 49% saving in drying time compared with open sun drying. At the average solar radiation of 420 W/m2 and air flow rate of 0.07 kg/s, the collector, drying system, and pickup demonstrated efficiency rates of approximately 28%, 13%, and 45%, respectively. Evaporative capacity ranged from 0.13 to 2.36 kg/h, with an average of 0.97 kg/h. The specific moisture extraction rate (SMER) of 0.19 kg/kWh was obtained. Moreover, the drying kinetics of C. annuum L. were investigated. A nonlinear regression procedure was used to fit three drying models. These models were compared with experimental data on red chilies dried by open sun drying and those dried by solar drying. The fit quality of the models was evaluated using their coefficient of determination (R 2), mean bias error, and root-mean-square error values. The Page model resulted in the highest R 2 and the lowest mean bias and root-mean-square errors.

AB - This study evaluated the performance of solar drying in the Malaysian red chili (Capsicum annuum L.). Red chilies were dried down from approximately 80% (wb) to 10% (wb) moisture content within 33 h. The drying process was conducted during the day, and it was compared with 65 h of open sun drying. Solar drying yielded a 49% saving in drying time compared with open sun drying. At the average solar radiation of 420 W/m2 and air flow rate of 0.07 kg/s, the collector, drying system, and pickup demonstrated efficiency rates of approximately 28%, 13%, and 45%, respectively. Evaporative capacity ranged from 0.13 to 2.36 kg/h, with an average of 0.97 kg/h. The specific moisture extraction rate (SMER) of 0.19 kg/kWh was obtained. Moreover, the drying kinetics of C. annuum L. were investigated. A nonlinear regression procedure was used to fit three drying models. These models were compared with experimental data on red chilies dried by open sun drying and those dried by solar drying. The fit quality of the models was evaluated using their coefficient of determination (R 2), mean bias error, and root-mean-square error values. The Page model resulted in the highest R 2 and the lowest mean bias and root-mean-square errors.

UR - http://www.scopus.com/inward/record.url?scp=84874821105&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874821105&partnerID=8YFLogxK

U2 - 10.1155/2013/167895

DO - 10.1155/2013/167895

M3 - Article

AN - SCOPUS:84874821105

VL - 2013

JO - International Journal of Photoenergy

JF - International Journal of Photoenergy

SN - 1110-662X

M1 - 167895

ER -