Frequency, Temperature and Moisture Dependent Dielectric Properties of Chicken Manure Relevant to Radio frequency/Microwave Drying
Publish place: Poultry Science Journal، Vol: 9، Issue: 2
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_PSJG-9-2_005
تاریخ نمایه سازی: 30 بهمن 1400
Abstract:
Dielectric properties (dielectric constant & dielectric loss factor) of chicken manure in the temperature range of ۱۰-۷۰ and moisture contents of ۱۵%, ۲۵%, ۳۵%, and ۴۰% (wet basis), were determined using Agilent high temperature open-ended coaxial probe coupled with vector network analyzer in the frequency range ۱۰ MHz to ۱۴ GHz. It is observed that the dielectric constant and dielectric loss factor decrease with an increase of frequency at all temperatures. Moreover, these properties increase smoothly with temperature and moisture content up to ~۴۰ and beyond it, values increase abruptly at all frequencies. The penetration depths of the electromagnetic field in chicken manure samples were calculated at ISM (industrial, scientific and medical) frequencies of ۱۳, ۲۷, ۴۰, ۹۱۵, ۲۴۵۰, and ۵۸۰۰ MHz by making use of measured dielectric properties and it was observed that these depths decrease with increase in frequency at all moisture content and temperatures. The data of dielectric properties and penetration depths presented in this paper helps to develop the radio frequency/microwave applicators for providing dielectric heat treatment to chicken manure for various applications such as drying, disinfestation, pasteurization etc.
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Authors
Prem Pankaj
Department of Physics, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab ۱۴۸۱۰۶, India
Prabhdeep Kaur
Department of Physics, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab ۱۴۸۱۰۶, India
Kuldip Singh Mann
Department of Physics, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab ۱۴۸۱۰۶, India
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