PSHS-CV brings Sci-Math Battle to Tagbilaran City

By Rey Anthony Chiu | 11:14 AM October 03, 2023

The use of horizontal axis turbines for generating power for street lights in rural areas merged as the grand champion in poster design in project proposal in the engineering category as the Department of Science and Technology’s Philippine Science High School Central Visayas hosting this year’s Regional Sci-Math Battle brings it to Bohol at Island City Mall in Tagbilaran City.

The inaugural day of the event spotlights Research Forum and Poster Competition, featuring four outstanding teams from Bohol Wisdom School, Holy Spirit School of Tagbilaran, Inc., Tagbilaran City Science High School, and University of Bohol, pitting themselves against each other’s wits for the 3rd Regional SciMath Battle 2023 in applied sciences and industry research.

Bannering a research on the Efficacy of the different wind turbines in generating power for street lights in rural areas as submitted by Bohol Wisdom School students earned the thumbs up of judges from the DOST’s Philippine Science High School Visayas Campus, here in Bohol for the two day MathSci Battle.

With the Philippines having the most expensive prices of electricity in the Asian region brought about by dependence on fossil fuel, which in itself is adding to the already fast environmental degradation, the study, which also included testing of the different types of 3D printed wind turbines showed that at constant wind velocity, the horizontal axis wind turbine showed highest rotational rotors speed, highest power coefficient and produces enough voltage to generate sustainable clean power for rural streetlights.

Students Ramasola Ange and Ibba, Helene Alexia submitted the project and the poster.

Still in the engineering category, Tagbilaran City Science High School’s (TCSHS) Lead Zirconate Titanate or piezoelectric ceramic material embedded in a doormat to power a night light wins the second place as student inventors said night lights provide security.

Using piezoelectricity, the students employed experimental quantitative research, in determining the average charging current is generated on a step, the charging duration and the number of steps needed to charge the battery to keep a sustainable night light.

It was found that when more people stepped on the piezoelectric energy harvesting doormat, the charging current increased and the charging time decreased, showing how human motion energy can be used to charge batteries usable now in real-world applications.

Students Franzyne Adelle Lagapa, John Dio Lumacang and Rixel Rashid Manimtim submitted the project.

In second place in the engineering category is still Tagbilaran City Science High School with their Smart Blind Stick.

The Smart Blind Stick which uses earphones and Arduino nano technology as the central control unit which processes data, generates sound cues and managing power use, the walking stick automatically vibrates and issues an audio cue and instructions when it senses an obstacle.

When tested on the visually impaired, respondents found the walking stick satisfactorily functional, with spot-on sensor accuracy that guides the stick bearer highly effective obstacle awareness and avoidance, helping the visually impaired walk with lesser worry of hitting obstacles and hurting themselves.

The study by April Karen Daleon, Ryan Kyle Hamoay and Sophia Maye Vale picked the slogan “walking towards the future, guided by innovation.

In the Life Science Category, TCSHS, the sole entry bagged the first place with their study on the Hypocholesterolemic effect of Carabao Mango leaves on Broiler Chicken.

Using the leaves of carabao mangoes, they proved that this is effective in lowering cholesterol levels. The mangiferin in the leaves increases the high density lipoprotein and enhances the flow of cholesterol from the blood levels to the liver for faster metabolism, assailed Allysa Jane Damalerio, Jessa Marielle Bongcaron and Labina Mae Gilbuena, students.

For the physical sciences category, TCSHS again ruled with the potential of smooth ribbon seagrass leaf extract as an alternative source of electricity, as presented by Mike Joseph Cartagenas, Ibiza Dalogdog and Venice Loraine Rollorazo.

Students here bared that leaf extracts of the often washed ashore sea grass can be valuable source of cleaner and greener alternative for electric generation, an area that needs further large scale trials.

On second place in this category is Bohol Wisdom School is the efficacy of snake plant fibers as an innovatibve air purification solution for mitigating cigarette smoke contamination as submitted by Trevor Alturas and Famke Ysabelle Boybanting.

The study proved that snake plant fibers could be viable alternative for air purifiers, showing capacities similar to commercial purifiers in filtering cigarette smoke.

PSHC Visayas Campus Director Rachel Luz Rica handed the awards and tokens, assisted by PSHS CV faculty. (rahc/PIA-7/Bohol)

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