Energy Management Trends for Sustainability in Agriculture Industry of the Philippines

Mendigoria, Christan Hail; Concepcion, Ronnie; Dadios, Elmer P.; Sybingco, Edwin

doi:10.1109/hnicem51456.2020.9400098

Cited by 11 publications

(1 citation statement)

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“…[1] Solar energy is the most abundant renewable energy source which is available in almost all regions around the world and can be considered as an alternative source to meet the global energy needs.Currently, there is an immense potential for harnessing solar energy to meet both daylight requirements and electricity needs. [1,2] A recent study shows that lighting accounts for 40% of a building's energy consumption, with commercial buildings having the highest percentage. [3] This growth in energy consumption for lighting, due to an expanding population, results in a considerable rise in greenhouse gas (GHG) emissions.…”

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Experimental Performance Evaluation of a Hybrid Parabolic Solar Lighting System for Use in Agricultural Environments

Karimi Yayshahri,

Gorjian,

Minaei

2023

Energy Tech

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Energy consumption for lighting is an important issue in agriculture due to the increasing trend of using artificial lighting systems in various growth environments, including greenhouses, indoor farming systems, vertical farming systems, and plant research facilities. In 2019, agricultural lighting accounted for an estimated annual electricity consumption of 13.3 TWh, accounting for about 2% of total energy consumption for general lighting. As a result, the industry is actively working to reduce its energy footprint and promote a more sustainable approach to agricultural lighting. This study presents a solar lighting system designed for indoor farming to provide natural light. The proposed system uses a parabolic dish concentrator (PDC) integrating with polymethyl methacrylate (PMMA) optical fibers to direct concentrated light into a desired place. In this design, two DC motors were installed to point the parabolic dish toward the sun during the day. Water cooling mechanism was also used to prevent heat transmission to the optical fibers. In addition, a photovoltaic (PV) module was integrated into this system to provide the required power of the system, which can follow the path of the sun due to its integration with the sun tracker,, increasing the amount of generated electricity. The indoor sunlight’s distribution was studied using a designed darkroom. The evaluation was carried out in seven days in November 23 to 29, from 8 a.m. to 4 p.m., to ensure the stability of the system under various weather conditions. The results of the experiments showed that the receiver’s temperature can be remained at 63 °C on sunny days under a clear sky, even when the maximum value of solar radiation was about 982 W/m2 with the highest air temperature of 19 °C. During the experiments, the solar illuminance ranged from a maximum of 118,821.85 lx to a minimum value of 374.9.6 lx. In addition, the results of the optical performance evaluation showed that the system can keep the illuminance level above 2,500 lx for an extended period which makes the system appropriate for a growth environment. It was also proved that the most important impacting factors on the performance of the system are solar radiation and incoming illuminance. The overall optical efficiency of the system, considering optical components, ranged from 31‐32% under various outdoor illuminance levels. Overall, it was confirmed that the developed solar lighting system offers a applicable method to naturally illuminate protected agricultural environments, enhancing the quality of the growing crops.This article is protected by copyright. All rights reserved.

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