Inlet Size and Location Impact on Greenhouse Dryer Process Dynamics

A significant amount of food waste is generated in the post-harvest stage of the food production chain due to unsuitable drying. Understanding greenhouse dryer (GHD) process dynamics could help achieve a better dryer design to reduce food waste generation. This study utilizes a Computational Fluid D...

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Main Authors: Hamzah R. M. Hajiyat, Siti Aslina Hussain, Mohd Yusof Harun
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2023-12-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/14248
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author Hamzah R. M. Hajiyat
Siti Aslina Hussain
Mohd Yusof Harun
author_facet Hamzah R. M. Hajiyat
Siti Aslina Hussain
Mohd Yusof Harun
author_sort Hamzah R. M. Hajiyat
collection DOAJ
description A significant amount of food waste is generated in the post-harvest stage of the food production chain due to unsuitable drying. Understanding greenhouse dryer (GHD) process dynamics could help achieve a better dryer design to reduce food waste generation. This study utilizes a Computational Fluid Dynamics (CFD) model of a GHD to investigate the effect of inlet size and location on GHD kinetics. The software used is COMSOL software (COMSOL Multiphysics version 5.6) which is capable of modeling the GHD. From the simulation results, three key observations in terms of GHD dynamics are derived. The inlet size is positively correlated to the average velocity in GHD and negatively correlated to the average temperature in GHD. The inlet location impacts both the spatial distribution of the temperature and velocity in the GHD. This implies that a GHD operating temperature and drying rate can be controlled with a simple modification of inlet size and location, which means a single GHD could be used to dry different crops depending on the season. It is concluded that the inlet size and location should be considered when designing a GHD.
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spelling doaj.art-aa3816989dff48f38ec11814821c85db2023-12-15T23:50:17ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162023-12-0110610.3303/CET23106188Inlet Size and Location Impact on Greenhouse Dryer Process DynamicsHamzah R. M. HajiyatSiti Aslina HussainMohd Yusof HarunA significant amount of food waste is generated in the post-harvest stage of the food production chain due to unsuitable drying. Understanding greenhouse dryer (GHD) process dynamics could help achieve a better dryer design to reduce food waste generation. This study utilizes a Computational Fluid Dynamics (CFD) model of a GHD to investigate the effect of inlet size and location on GHD kinetics. The software used is COMSOL software (COMSOL Multiphysics version 5.6) which is capable of modeling the GHD. From the simulation results, three key observations in terms of GHD dynamics are derived. The inlet size is positively correlated to the average velocity in GHD and negatively correlated to the average temperature in GHD. The inlet location impacts both the spatial distribution of the temperature and velocity in the GHD. This implies that a GHD operating temperature and drying rate can be controlled with a simple modification of inlet size and location, which means a single GHD could be used to dry different crops depending on the season. It is concluded that the inlet size and location should be considered when designing a GHD.https://www.cetjournal.it/index.php/cet/article/view/14248
spellingShingle Hamzah R. M. Hajiyat
Siti Aslina Hussain
Mohd Yusof Harun
Inlet Size and Location Impact on Greenhouse Dryer Process Dynamics
Chemical Engineering Transactions
title Inlet Size and Location Impact on Greenhouse Dryer Process Dynamics
title_full Inlet Size and Location Impact on Greenhouse Dryer Process Dynamics
title_fullStr Inlet Size and Location Impact on Greenhouse Dryer Process Dynamics
title_full_unstemmed Inlet Size and Location Impact on Greenhouse Dryer Process Dynamics
title_short Inlet Size and Location Impact on Greenhouse Dryer Process Dynamics
title_sort inlet size and location impact on greenhouse dryer process dynamics
url https://www.cetjournal.it/index.php/cet/article/view/14248
work_keys_str_mv AT hamzahrmhajiyat inletsizeandlocationimpactongreenhousedryerprocessdynamics
AT sitiaslinahussain inletsizeandlocationimpactongreenhousedryerprocessdynamics
AT mohdyusofharun inletsizeandlocationimpactongreenhousedryerprocessdynamics