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Fabrication And Performance Evaluation Of Cold Storage System
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The fruits and vegetables include water melon, cucumber, tomatoes and apples were used for the experiment was source from Ipata market in Ilorin East Local Government area of Kwara State.
3.8.2 Sample Preparation
The fruits and vegetables are heterogeneous in which there is need to go through the proves of preparing for storage which is done by cleaning, sorting, grading quality and valuable sample.
3.8.3 Experimental Procedure
The cold storage structure was tested at no load and when loaded with fruits and vegetables without the temperature and humidity controller. This was done in order to detect any abnormalities in the cold storage structure before the installation of controlling devices the sample was stored on the cooling trays in the cold storage system. The temperature was controlled from 29℃ to 17℃ before storage the fruits and vegetables. Each of the samples was stored together. The reading was taken at four hours interval for the period of 3 consecutive days.
The behaviours of the samples were also monitored under both ambient temperature and cold storage conditions in which the stored sample on ambient were used as control. The experiment was controlled with a temperature and humidity controller in which the relative humidity was constant as 85% and the temperature was taken at four hours interval.
3.8.4 Output Parameters
The output parameters equations were used to evaluate the performance of the cold storage structure as expressed by:
Coefficient of performance
Cooling rate
Physiological weight loss
Coefficient of Performance (cop)
This is defined as the ratio of working temperature in the evaporator (T1) to the ratio of working temperature in the condenser coil (T2). Also coefficient of performance (cop), as a measure of system efficiency is defined as the ratio between the amounts of heat absorbed in the evaporator to the power given to the compressor.
Where; W= the work input into the compressor
Q = Heat absorbed in the evaporator
T1= working temperature in the evaporator (0c)
T2= working temperature in the condenser coil (0c)
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTSA portable cold room storage was developed. The system was tested with different types of perishable crops under different temperatures. The system is made up of two units, one,the evaporating unit that is where the produce was stored; it is made up of steel material with 79mm by 45mm in length and breadth. While the second unit is the trolleys, the system consists of a control switch that is calibrated to suit any type of produce stored in the system. It contain a separate basement whi ... Continue reading---
TABLE OF CONTENTS - [ Total Page(s): 1 ]TABLE OF CONTENTSTitle pageCertificationDedicationAcknowledgementAbstractsTable of contentsCHAPTER ONE1.0 Need for cold storage of Agricultural Products 1.1 Definition of storage 1.2 Flavour and Nutrition value of Agricultural products 1.3 Economics Important of cold Storage 1.4 Objectives of the Project 1.5 The Scope of the Project 1.6 Justification of the Project CHAPTER TWO 2.0 Development of Cold Room Storage for Fruits a ... Continue reading---
CHAPTER ONE - [ Total Page(s): 2 ]CHAPTER ONEINTRODUCTION1.1 Need for Cold Storage of Agricultural Products The term ‘cold storage ’refers to the storing of agricultural products in a refrigerated atmosphere. This means adequate amount of heat is removed from the storage container or room to help keep the item in often food fresh to delivery, long or short term storage.Cold storage help prevent spoilage of food and other items meat for consumption, and it can be used in a variety of other setting such as in ho ... Continue reading---
CHAPTER TWO - [ Total Page(s): 6 ]2.5 Indoor Storage of Fruits and Vegetables There are many areas in dwellings that naturally provide, or can be adapted to provide, a variety of temperature and moisture conditions for storage. Assess your specific situation; if possible, use a thermometer to monitor temperature in various area of your building during fall and winter to find locations that are convenient and most readily adaptable for storage food. Any spot that is sufficiently and evenly cool (32 – 60 ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 6 ]Figure 4.5: Effect of temperature against time interval both in the Cold Storage and under ambient condition The result showed that the temperature in the cold storage decrease within the range of 29-1.40C with time interval of three (3) days while the ambient temperature very with time interval depending to the atmospheric condition. ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 1 ]CHAPTER FIVECONCLUSION AND RECOMMENDATION5.1 Conclusion A cold storage system was modified for performance and the following conclusions were drawn from the evaluation conducted. The percentage weight loss (PWL) varied between 0.06 – 61.57% . Maximum weight loss was found in ambient condition where as minimum (0.06%) was found in the cold storage system. The percentage weight loss was found increased with increase in storage period for both cold storage system and ambie ... Continue reading---
REFRENCES - [ Total Page(s): 1 ]REFERENCESBank of India (N.D.) 2003: Cold storage (Online) available from: http://www.bankofIndia.Co.m/english/cold storage.asp.access 18/12/2016 10:45am.BFFF (2009): British frozen food federation reportFAO (1995) Fruits and vegetables processing, FAO Agricultural Services Bulletin 119, Rome. FAO (2004): Manualforthe preparation and scale of fruits and vegetables from field to markets, Rome: FAO, Available from http://www.fao.org/docrep/008/y4893e/y4893e00.HTM 18/12/2016 12:05pm.FAO (2009): ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTSA portable cold room storage was developed. The system was tested with different types of perishable crops under different temperatures. The system is made up of two units, one,the evaporating unit that is where the produce was stored; it is made up of steel material with 79mm by 45mm in length and breadth. While the second unit is the trolleys, the system consists of a control switch that is calibrated to suit any type of produce stored in the system. It contain a separate basement whi ... Continue reading---