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All Journal Mekanika: Majalah Ilmiah Mekanika
Hanif, Shazia
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Adsorption Characteristics of Silica Gel-Water Pairs in Personal Protection Equipment Hanif, Shazia; Adiputra, Suryadijaya; Yaningsih, Indri; Budiana, Eko Prasetya
Mekanika: Majalah Ilmiah Mekanika Vol 22, No 2 (2023): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v22i2.71250

Abstract

This study aims to determine the characteristics of silica gel RD to water vapor in terms of adsorption capacity and rate. A layer modeling approach was employed to simulate the Personal Protective Equipment (PPE), which comprised four distinct layers: the surrounding environment air, the fabric layer, the RD-type silica gel layer, and the air gap separating the silica gel from the skin surface. The simulation encompassed environmental conditions set at 27 ℃, while the human body's temperature was maintained at 35 ℃. This study uses a simulation method using Guggenheim–Anderson de Boer (GAB) modeling calculations to determine isothermal characteristics and Linear Driving Force (LDF) modeling to determine kinetic characteristics with an adsorbent temperature of 26.84 ℃. The simulation results show that the isothermal characteristics of silica gel RD at a relative humidity of 60% or a relative pressure of 0.6 have an absorption capacity of 0.38 kg/kg. Moreover, the kinetic characteristics of silica gel RD have an absorption rate of 0.38 kg/kg of water vapor with a time of 980 s until a significant reduction in the absorption value occurs
Co-Authors Adiputra, Suryadijaya Budiana, Eko Prasetya Indri Yaningsih