Development of a Solar Powered Evaporative Cooling Storage System for Tropical Fruits and Vegetables

Olosunde, William Adebisi; Aremu, Ademola Kabir; Onwude, Daniel I.

doi:10.1111/jfpp.12605

Cited by 30 publications

(31 citation statements)

References 2 publications

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“…Moreover, on the 12 th day of storage, PWL increased to 6.95%, 29.52% and 48.4% stored at ZEC, RM and OS respectively. These results are almost within the range of other studies: Olosunde et al [20] , reported the PWL after 3 rd storage day as 1.38% and 14.5% in ZEC and OS, respectively. Moneruzzaman et al, [21] also reported the PWL as 6.28% and 13.31% on 3 rd and 12 th day of respective storage.…”

Section: Resultssupporting

confidence: 91%

Study on Zero Energy Evaporative Cooling Chamber for Agricultural Products Storage

Khalid¹,

Mahmood²,

Mahmood³

et al. 2020

Proceedings of International Exchange and Innovation Conference on Engineering &Amp; Sciences (IEICES)

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Post-harvest agricultural products are highly perishable due to containing higher moisture contents. Most of agricultural product need special storage like relatively low temperature and higher relative humidity to store for some time duration. In this regard, low cost Zero-energy cool chamber (ZEC) is constructed through locally available material for short-term storage of products. Thermodynamic evaluation of ZEC is mainly investigated by measuring its temperature and relative humidity in comparison with Outside/Ambient (OS) and Room (RM) conditions and its performance is based on evaporation rate that take place through medium. The cooling efficiency of ZEC is then determined under varying ambient conditions. The average temperature and relative humidity difference measured between ZEC and OS about 9°C and 45% respectively. Different analyses are performed including the comparison of physiological weight loss (PWL) and visual appearance (VA) for stored tomatoes at different three environmental conditions such as outside (OS), room (RM) conditions and zero energy cool chamber (ZEC). These analyses are

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Section: Resultssupporting

confidence: 91%

Study on Zero Energy Evaporative Cooling Chamber for Agricultural Products Storage

Khalid¹,

Mahmood²,

Mahmood³

et al. 2020

Proceedings of International Exchange and Innovation Conference on Engineering &Amp; Sciences (IEICES)

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“…Cold storage facilities are often inadequate due to lack of electricity supply for farmers [107]. Farmers do not use appropriate post-harvest crop handling techniques, appropriate storage facilities are too expensive or not available, appropriate transport modes are not available, road conditions are bad, and market information and access are insufficient [106].…”

Section: Transport and Storagementioning

confidence: 99%

A Systems Approach to Food Loss and Solutions: Understanding Practices, Causes, and Indicators

et al. 2019

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Reasons behind food loss can be very specific for each product and supply chain stage but it is also affected by factors independent of the product and stage. This work focuses on such generic factors and develops a framework to analyze food loss as a systemic outcome. The framework highlights the interconnected nature of problem across supply chain stages and therefore emphasizes the need to look at the whole system instead of specific stages, when proposing solutions. Practices and underlying causes contributing to food loss are identified for each stage of the supply chain using a literature search. Deductive logic is used to fill the gaps where literature was found to be scarce, and to derive socio-economic indicators that signal the presence of identified causes. Using this framework, we propose a non-exhaustive list of 30 socio-economic indicators, which can signal the presence of the 22 practices and 60 causes associated with food loss in supply chains. This list can serve as a starting list for practitioners and policymakers to build on when analyzing food losses in supply chains in their region. We evaluate the framework using a field-study of a tomato supply chain in Nigeria, and conclude that it can be a useful tool to identify practices, causes, and indicators of food loss.

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“…24,30,31,38 Overall amount of adsorption heat generated during desiccant dehumidification process can be calculated by means of desiccant outlet and inlet air enthalpy difference. In this study, it is named as equivalent heat of adsorption (q eq ) and expressed by equation (22)…”

Section: Resultsmentioning

confidence: 99%

“…mango, banana, tomato, leafy vegetables, etc. 21,22 Chilling injury can cause internal browning and surface pitting and also give rise to decay vulnerability in tropical root and tuber crops. 23 In this regard, conventional vapor compression air-conditioning (VAC) might be considered in order to maintain the storage conditions.…”

Section: Motivation Of Desiccant Acmentioning

confidence: 99%

Solid desiccant dehumidification-based air-conditioning system for agricultural storage application: Theory and experiments

Mahmood

Sultan

Miyazaki

2019

Proceedings of the Institution of Mechanical Engineers, Part A:

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This study experimentally investigates desiccant dehumidification and indirect evaporative cooling for agricultural products' storage. Thermodynamic advantages of the proposed system are highlighted and compared to vapor compression systems. Significance of proposed system is discussed in relation to agricultural storage application. Factors affecting the postharvest quality of products are discussed, and consequently, the psychrometric zones are established for optimum storage. Hydrophilic polymeric sorbent-based desiccant units are used for the experimental investigation. An open-cycle experimental apparatus is setup by which desiccant dehumidification and regeneration processes are analyzed at various conditions. Thereby, a novel correlation is developed by which desiccant dehumidification process can be simulated precisely. The correlation is successfully validated against the experimental data of various conditions. Desiccant air-conditioning cycle is analyzed for two cases (i.e. case-A: dry-bulb temperature = 31 ℃, humidity-ratio = 6 g/kg-DA; and case-B: dry-bulb temperature = 13 ℃, humidity-ratio = 6 g/kg-DA) to investigate the proposed system's applicability for agricultural storage. The results show that the thermal coefficient of performance is highly influenced by ambient air conditions and decreases with the increase in regeneration temperature. The thermal coefficient of performance for case-A is higher as compared to case-B, and for both cases, it increases with the increase in wet-bulb effectiveness of the evaporative cooling unit.

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Development of a Solar Powered Evaporative Cooling Storage System for Tropical Fruits and Vegetables

Cited by 30 publications

References 2 publications

Study on Zero Energy Evaporative Cooling Chamber for Agricultural Products Storage

Study on Zero Energy Evaporative Cooling Chamber for Agricultural Products Storage

A Systems Approach to Food Loss and Solutions: Understanding Practices, Causes, and Indicators

Solid desiccant dehumidification-based air-conditioning system for agricultural storage application: Theory and experiments

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