This paper was aimed to study the drying kinetics of coffee and to investigate the thin-layer drying kinetics of coffee by using a convective air dryer. The coffee was dried for the temperatures of 40, 50 and 60 ℃ with relative humidity in the range of 14-25% the airflow rate fixed at 1 m/s. According to the experiment result, the drying rate curve showed that drying process took place only in the falling rate period. Seven thin layer drying models (Newton, Page, Henderson and Pabis, Logarithmic, Wang and Singh, Two terms, Modified Henderson and Pabis) were fitted to the experimental moisture content data. The Two-trem model was found to be a better model for describing the characteristics of coffee for the temperatures of 40, 50 and 60 ℃. The effective moisture diffusivity of coffee increased when the drying temperature increased. The value was in the range of 4.5028 x 10-11 to 6.4803 x 10-11 m2/s.
목차
Abstract 1. INTRODUCTION 2. MATERIALS AND METHODS 2.1 Drying Experimental 2.2 Mathematical modelling 2.3 Moisture diffusivity of cherry coffee 3. RESULTS AND DISCUSSION 3.1 Drying characteristics of cherry coffee 3.2 Mathematical modeling of drying curves 3.3 Calculation of effective diffusivity 4. CONCLUSION REFERENCES
키워드
CoffeeDiffusivityDryingModel
저자
Wanich Nilnont [ Rajamangala University of Technology Suvarnabhumi, Nonthaburi, Thailand ]
Sutida Phitakwinai [ Rajamangala University of Technology Suvarnabhumi, Nonthaburi, Thailand ]
국제문화기술진흥원 [The International Promotion Agency of Culture Technology]
설립연도
2009
분야
공학>공학일반
소개
본 진흥원은 문화기술(Culture Technology) 관련 산·학·연·관으로 구성된 비영리 단체이다. 문화기술(CT)은 정보통신기술(ICT), 문화적 사고 기반의 예술, 인문학, 디자인, 사회과학기술이 접목된 신융합기술(New Convergence Technology, NCT)로 정의한다. 인간의 삶의 질을 향상시키고, 진보된 방향으로 변화시키고, 문화기술 관련 분야의 학술 및 기술의 발전과 진흥에 공헌하기 위하여, 제3조의 필요한 사업을 행함을 그 목적으로 한다.
간행물
간행물명
International Journal of Advanced Culture Technology(IJACT)
간기
계간
pISSN
2288-7202
eISSN
2288-7318
수록기간
2013~2025
등재여부
KCI 등재
십진분류
KDC 600DDC 700
이 권호 내 다른 논문 / International Journal of Advanced Culture Technology(IJACT) Volume 3 Number 2