RANCANG BANGUN MINI PROTOTIPE FIRE FIGHTING TRAILER YANG DILENGKAPI SISTEM POMPA AIR DAN FOAM

Penelitian ini bertujuan mengembangkan penelitian sebelumnya melalui rancang bangun dan pengujian mini prototipe Fire Fighting Trailer yang dilengkapi sistem pompa foam proportioner otomatis untuk mendukung pemadaman awal pada area sekunder bandara, seperti grassland dan service road di Bandar Udara Internasional Juanda Surabaya. Pengembangan ini menggunakan metode Research and Development (R&D) dengan pendekatan Engineering Design Process (EDP). Sistem dikendalikan oleh mikrokontroler Arduino Uno R3, memadukan pompa diafragma 12V untuk air dan pompa micro peristaltic berbasis Pulse Width Modulation (PWM) via MOSFET untuk injeksi busa, serta sensor aliran YF-S201 dan YF-S401. Pengujian eksperimental skala simulasi menunjukkan performa yang stabil. Sensor debit air YF-S201 mencatat rata-rata error 1,19%, di bawah batas toleransi 2%. Pada pengujian akurasi rasio pencampuran busa, sistem mencapai rasio rata-rata 3,13% untuk setpoint 3% dan 6,19% untuk setpoint 6%, memenuhi rentang toleransi standar NFPA 11. Selain itu, jangkauan pancaran nozzle menghasilkan jarak rata-rata 4,2 meter pada pancaran lurus (solid jet) dan 2,5 meter pada tirai kabut (spray). Hasil ini mengonfirmasi bahwa integrasi sistem kontrol PWM dan sensor aliran ganda berhasil memberikan kepresisian tinggi sebagai pengembangan inovasi alat pemadam otomatis.

This research aims to develop previous studies through the design and testing of a mini Fire Fighting Trailer prototype equipped with an automatic foam proportioner pump to support initial fire suppression in secondary airport areas, like grasslands and service roads at Juanda International Airport, Surabaya. This development employs the Research and Development (R&D) method with an Engineering Design Process (EDP) approach. Controlled by an Arduino Uno R3 microcontroller, the system combines a 12V diaphragm water pump and a Pulse Width Modulation (PWM) based micro peristaltic pump via MOSFET for foam injection, alongside YF-S201 and YF-S401 flow sensors. Simulation-scale testing demonstrated stable performance. The YF-S201 water flow sensor recorded an average error of 1.19%, remaining below the 2% tolerance limit. During the foam mixing ratio accuracy test, the system achieved average ratios of 3.13% for the 3% setpoint and 6.19% for the 6% setpoint, complying with the NFPA 11 standard tolerance. Additionally, the nozzle reach produced an average distance of 4.2 meters for the solid jet and 2.5 meters for the spray. These results confirm that integrating PWM control and dual flow sensors successfully provides high precision, advancing previous automatic firefighting equipment innovations.