Evaluation of natural convection solar dryer / by Victor S. Sarmiento.

By: Material type: TextTextLanguage: English Publication details: Indang, Cavite, 1990. Cavite State University- Main Campus,Description: 28p. : ill. ; 28 cm. illustrations ; cmContent type:
  • text
Media type:
  • unmediated
Carrier type:
  • volume
Subject(s): DDC classification:
  • 621.47  Sa7 1990
Online resources: Abstract: SARMIENTO, VICTOR S., Don Severino Agricultural College, Indang, Cayite, April, 1990. "Evaluation of Natural Convection Solar Dryer", Engr. Conrado M. Bal-tazar, Adviser. This study was conducted to investigate the applicability of natural convection solar dryer in drying coffee beans and to evaluate the dryer in terms of drying rate and drying time. A solar dryer constructed at the Don Severino Agricultural College-Affiliated Non-Conventional Energy Center was used in this study. Results of this study revealed that solar drying method exhibited faster drying rate of 3.23% me/hr and has a (drying time of 54.67 hours as compared to direct sun drying method with a rate of 2.59 me/hr and a drying time of 62.39 hours. It was also affected by the density of the product. Coffee density of 30 kg /m2 has the highest drying rate of 4.23% me /hr followed by 60 kg/m2 with a rate of 2.9% me/hr). The leas drying rate was observed on product_having 120 kg/m2 density, 1.89% me/hr. Likewise, the drying was also affected by the density of product. The densities of 30, 60 and 120 kg/m2 had a time duration of 35.33, 65.55 and 80.66 hours, respectively.
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Theses / Manuscripts Theses / Manuscripts Ladislao N. Diwa Memorial Library Theses Section Non-fiction 621.47 Sa7 1990 (Browse shelf(Opens below)) Room use only T-1053 00002103

Thesis (BSAE - - Crop Processing) Don Severino Agricultural College.

Includes bibliographical references.

SARMIENTO, VICTOR S., Don Severino Agricultural College, Indang, Cayite, April, 1990. "Evaluation of Natural Convection Solar Dryer", Engr. Conrado M. Bal-tazar, Adviser.
This study was conducted to investigate the applicability of natural convection solar dryer in drying coffee beans and to evaluate the dryer in terms of drying rate and drying time. A solar dryer constructed at the Don Severino Agricultural College-Affiliated Non-Conventional Energy Center was used in this study. Results of this study revealed that solar drying method exhibited faster drying rate of 3.23% me/hr and has a (drying time of 54.67 hours as compared to direct sun drying method with a rate of 2.59 me/hr and a drying time of 62.39 hours. It was also affected by the density of the product. Coffee density of 30 kg /m2 has the highest drying rate of 4.23% me /hr followed by 60 kg/m2 with a rate of 2.9% me/hr). The leas drying rate was observed on product_having 120 kg/m2 density, 1.89% me/hr. Likewise, the drying was also affected by the density of product. The densities of 30, 60 and 120 kg/m2 had a time duration of 35.33, 65.55 and 80.66 hours, respectively.

Submitted to the University Library April 10, 1990 T-1053

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