Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan Africa

Heat pump technology has been used for heating, ventilation, and air-conditioning in domestic and industrial sectors in most developed countries of the world including South Africa. However, heat pump drying (HPD) of fruits and vegetables has been largely unexploited in South Africa and by extension...

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Main Authors: Folasayo Fayose, Zhongjie Huan
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:International Journal of Food Science
Online Access:http://dx.doi.org/10.1155/2016/9673029
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author Folasayo Fayose
Zhongjie Huan
author_facet Folasayo Fayose
Zhongjie Huan
author_sort Folasayo Fayose
collection DOAJ
description Heat pump technology has been used for heating, ventilation, and air-conditioning in domestic and industrial sectors in most developed countries of the world including South Africa. However, heat pump drying (HPD) of fruits and vegetables has been largely unexploited in South Africa and by extension to the sub-Saharan African region. Although studies on heat pump drying started in South Africa several years ago, not much progress has been recorded to date. Many potential users view heat pump drying technology as fragile, slow, and high capital intensive when compared with conventional dryer. This paper tried to divulge the principles and potentials of heat pump drying technology and the conditions for its optimum use. Also, various methods of quantifying performances during heat pump drying as well as the quality of the dried products are highlighted. Necessary factors for maximizing the capacity and efficiency of a heat pump dryer were identified. Finally, the erroneous view that heat pump drying is not feasible economically in sub-Saharan Africa was clarified.
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spelling doaj-art-5238aea38fbf42df93a5bae9d783688f2025-02-03T06:11:15ZengWileyInternational Journal of Food Science2356-70152314-57652016-01-01201610.1155/2016/96730299673029Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan AfricaFolasayo Fayose0Zhongjie Huan1Agricultural and Bio-Resources Engineering, Federal University Oye-Ekiti, PMB 373, Oye-Ekiti 371010, NigeriaTshwane University of Technology, Pretoria, South AfricaHeat pump technology has been used for heating, ventilation, and air-conditioning in domestic and industrial sectors in most developed countries of the world including South Africa. However, heat pump drying (HPD) of fruits and vegetables has been largely unexploited in South Africa and by extension to the sub-Saharan African region. Although studies on heat pump drying started in South Africa several years ago, not much progress has been recorded to date. Many potential users view heat pump drying technology as fragile, slow, and high capital intensive when compared with conventional dryer. This paper tried to divulge the principles and potentials of heat pump drying technology and the conditions for its optimum use. Also, various methods of quantifying performances during heat pump drying as well as the quality of the dried products are highlighted. Necessary factors for maximizing the capacity and efficiency of a heat pump dryer were identified. Finally, the erroneous view that heat pump drying is not feasible economically in sub-Saharan Africa was clarified.http://dx.doi.org/10.1155/2016/9673029
spellingShingle Folasayo Fayose
Zhongjie Huan
Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan Africa
International Journal of Food Science
title Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan Africa
title_full Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan Africa
title_fullStr Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan Africa
title_full_unstemmed Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan Africa
title_short Heat Pump Drying of Fruits and Vegetables: Principles and Potentials for Sub-Saharan Africa
title_sort heat pump drying of fruits and vegetables principles and potentials for sub saharan africa
url http://dx.doi.org/10.1155/2016/9673029
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