International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 05 | May 2022
p-ISSN: 2395-0072
www.irjet.net
Design and Development of Humidity Controller for Prevention of Microbiological Spoilage in Vegetables Jitendra G. Shinde1, Pratik sathe2, Arjun Shedage3, Sourabh Patil4,Sanket Kumbhar5 , Sairaj Patil6 Assistant Professor of Mechanical Engineering Department, BVCOE Kolhapur, Maharashtra, India 2,3,4,5,6U.G. Student of Mechanical Engineering Department ,BVCOE Kolhapur, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------1
Abstract - Is the application of different sensors and hot air
is gaining momentum in food processing. A hot air heating system was developed for drying vegetables. An Air heater boiler is used for heating of isolated cabin. In an isolated cabin, two fans are used which are connected to temperature sensors such as thermocouple and RTD. The mixing fans are used for proper circulation of hot air inside the panel and the exhaust fans is used to maintaining the temperature inside the panel. By using this system time required for drying is minimized as compared to the conventional process. We achieve the humidity level from 70% to 15% in 7 to 8 hours but the conventionally same process required 3 to 4 days.
1. INTRODUCTION The traditional sun drying process is common and widely embraced by all, however, the process is shown and sometimes incomplete under unfavorable climate conditions. Often the drying products are subjected to noxious effects of dust, dirt, and insect infestation. As a result of inadequacies of the open sun drying process, research efforts on drying agricultural produce have been on the increase over the years in order to develop and produce an economically effective, and systemized method of drying. Owing to the higher level of exhaustion in the conventional energy sources such as chemical energy, thermal energy, and petroleum energy, saturated air energy is rapidly becoming the main alternative source of energy. The availability and accessibility of saturated air heat energy have greatly assisted in improving the techniques for the preservation of agricultural products. Drying is a simple technique for preserving crops at a very low cost that might be otherwise spoilt. Although the saturated air collector is a very important component in the saturated airdrying system, much attention has not been drawn to dryer design previously. In principle, the performance of a saturated air dryer does not depends on the several operating conditions such as the climate condition, collector orientation, the thickness of the cover material, wind speed, length and depth of the collector, and the type of material used for the absorbers (ISHRE 2019) For this reason, this research has dealt with the optimization of
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the design, material selection, and required parameters to enhance the efficiency of the designed saturated air dryers.
2. PROBLEM DEFINITIONNowadays, there is a lack of awareness of the significance of humidity in our life. A suitable humidity level is needed to stabilize our environment and the world ecosystem including ourselves. The relative humidity in the air should be monitored in order to maintain an ideal environment. Too high or too low humidity level condition can affect the quality of Fruits and Vegetables which needs extra care in dry condition all the time. In day-to-day life, we need food products that have to be stored or preserved for more time. There are some food industries that try to preserve food items for long-term use, but these small-scale industries and agricultural poly houses cannot afford such expensive machinery for the preservation of food. Certain industries such as chickens eggs hatching or even the incubation of immature newborn chicks also need a controlled humidity condition. Hence we would like to propose this device that can read the humidity level and the temperature in order to help us be aware of humidity conditions around us.
3. OBJECTIVES: 1. To resolve a problem related to the preservation of food in agriculture poly houses by reducing the effect of microbiological spoilage. 2. Getting more output for a unit of input. For example, reducing the energy costs of a facility. 3. Design and development of an affordable system for agricultural poly houses. 4. Maximum use of the already existing system and available material, connecting things and getting them working together.
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