A field practice report on rice moisture sensing and data logging device for solar bubble dryer using Arduino programming at the International Rice Research Institute (IRRI)

Date

6-2016

Degree

Bachelor of Science in Agricultural and Biosystems Engineering

Major Course

Major in Agricultural and Bio-Process Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Princess Tiffany G. Dantes

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

The Philippines uses majority of its resources in rice production. Despite of this, the produce cannot support the growing demand of Filipinos for rice because of damages and losses in quantity and quality due to inefficiencies in postharvest processes. Different sectors mechanized the different processes of rice to reduce these losses. GrainPro, in collaboration with the International Rice Research Institute came up with a solar-mechanical hybrid dryer known as Solar Bubble Dryer that efficiently dries the commodity. However, the system is not fully mechanized due to the absence of moisture meter that is needed to determine the frequency of mixing and determine when to turn the ventilators on and off. In this report, a prototype of a moisture sensing and data logging service for SBD was constructed using Arduino programming. In the construction of the device, dht22 temperature and humidity sensor was calibrate using rewetted paddy as samples and oven-dry as a reference moisture content determination method. The device was equipped with Data Logging shield for recording data. The results showed that the device functions properly. It was capable of converting humidity reading into moisture content reading. Moreover, the date, time, and readings were displayed in Nokia 5110 LCD and recorded in a SD card in a *.txt file formmat that can be easily converted to Excel format for further data processing. However, accuracy and precision of the device was not tested. Thus, further testing of the device is recommended. Moreover, better way of moisture calibration method is recommended. Other activities conducted by the trainee was discussed in this report. In addition, problems encountered during the training were discussed and recommendations were given.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993 2016 A2 F48

Document Type

Thesis

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