Fua’d, Ainul and Dr. Slamet Wahyudi, ST., MT. and Dr. Eng. Eko Siswanto, ST., MT. (2023) Analisis Thermal Protective Performance pada Heat Resistant Clothing akibat Variasi Air Gap Thickness. Sarjana thesis, Universitas Brawijaya.
Abstract
Banyak profesi di dunia ini yang bekerja langsung dibawah temperatur tinggi seperti pemadam kebakaran, tentara, pekerja industri, dan lain-lain. Tidak jarang beberapa pekerjaan diatas menimbulkan luka bakar pada kulit mereka. Oleh karena itu, pentingnya pemodelan heat resistant clothing yang baik agar desain pakaian yang kita dapatkan mampu melindungi panas dari kulit. Salah satu indikator dalam pemodelan heat resistant clothing adalah thermal protective performance. Thermal protective performance pada heat resistant clothing bergantung pada tiga faktor utama, salah satunya adalah air gap thickness. Pada penelitian kali ini akan dikaji lebih lanjut mengenai pengaruh air gap terhadap thermal protective performance pada pakaian pelindung panas. Penelitian dilakukan dengan uji eksperimen menggunakan metode Fabric level pada Bench-scale test dengan alat yang sudah didesain sedemikian rupa. Air gap yang terletak diantara lapisan-lapisan heat resistant clothing akan divariasikan dengan thickness yang berbeda-beda dengan orientasi vertikal. Pada pengujian, terjadi perubahan distribusi temperatur pada lapisan Heat Resistant Clothing dan Thermal Protective Performance. Untuk Thermal Protective Performance sendiri, penambahan air gap thickness membuat waktu sebelum second degree burn time akan semakin lama dengan variasi air gap thickness yang optimal berada pada variasi 6.4 mm yang mempunyai second degree burn time 66 sekon. Namun, second degree burn time turun saat berada pada variasi terakhir 7.68 mm. Hal ini dikarenakan pada variasi tersebut, air gap thickness sudah dinilai terlalu besar dan perpindahan panas konveksi akan mulai berpengaruh tidak seperti variasi air gap thickness yang berada dibawah nilai tersebut yang perpindahan panas konveksinya berpengaruh kecil. Hal ini tentu saja menjadi tolak ukur dari Thermal Protective Performance dimana waktu sebelum second degree burn time yang lama akan mempunyai Thermal Protective Performance yang baik.
English Abstract
There are many professions in this world that work directly under high temperatures, such as firefighters, soldiers, industrial workers, and others. It is not uncommon for some of these jobs to cause burns on their skin. Therefore, the importance of good heat-resistant clothing design is crucial to ensure that the garments can protect the skin from heat. One indicator in the modeling of heat-resistant clothing is the thermal protective performance, which depends on three main factors, one of which is the air gap thickness. In this study, we will further examine the influence of the air gap on the thermal protective performance of heat-resistant clothing. The research will be conducted through experimental tests using the Fabric Level method on a bench-scale test with specially designed equipment. The air gap located between the layers of heat-resistant clothing will be varied with different thicknesses in a vertical orientation. During the testing, there were changes in the temperature distribution within the layers of the heat-resistant clothing and the thermal protective performance. As for the thermal protective performance itself, increasing the air gap thickness results in a longer seconddegree burn time, with the optimal air gap thickness variation being 6.4 mm, which had a second-degree burn time of 66 seconds. However, the second-degree burn time decreased when it reached the final variation of 7.68 mm. This is because at that particular variation, the air gap thickness was considered too large, and convective heat transfer began to have an impact, unlike the air gap thickness variations below that value where convective heat transfer have a small impact. This serves as a benchmark for thermal protective performance, where a longer second-degree burn time indicates better thermal protective performance.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 052307 |
| Uncontrolled Keywords: | Thermal Protective Performance, heat resistant clothing, air gap thickness, second degree burn time |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.31 Generations, modification, storage, transmission of electric power > 621.312 Generation, modification, storage > 621.312 4 Direct energy conversion |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Unnamed user with username tunjungsari |
| Date Deposited: | 10 Jan 2024 02:00 |
| Last Modified: | 10 Jan 2024 02:00 |
| URI: | http://repository.ub.ac.id/id/eprint/207016 |
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