Issuu

International Research Journal of Engineering and Technology (IRJET) Volume: 09 Issue: 06 | Jun 2022

www.irjet.net

e-ISSN: 2395-0056 p-ISSN: 2395-0072

A review on “Electric dryer for areca nut”. Nithin Noronha1, Muhammad Badish2, Ranjan Shetty3, Prashant Lachyan4, Vikranth Kannanth5 1,2,3,4 Student

MITE Moodabidri Assistant Professor, Dept. Of Mechanical Engineering, Mangalore Institute of Technology & Engineering, Moodabidri, Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------

5Senior

Abstract - An Areca nut is a prominent commercial crop

The two primary types of solar dryers are natural convection solar dryers and forced convection solar dryers. Convective sun dryers generate airflow by buoyant, while forced convective dryers generate airflow through a fan driven by electricity/solar module or fossil fuel. Solar technology is quickly gaining ground in agriculture as a cost-effective energy-saving option. It is preferred above other alternative energy sources such as wind and shale since it is abundant, limitless, yet non-polluting. Sun air heaters are simple devices that heat air by utilising sun energy. They're used in a variety of applications that need temperatures below 80°C, such as crops drying and space warming.

that is cultivated in wide regions. Due to overcast weather, drying of boiling areca nuts is a serious issue throughout the rainy season (less amount of sunlight). Both the naturally drying methods and the contemporary drier have been demonstrated to be unsuccessful owing to the extended drying period, which results in poor quality control. The primary goals are to reduce time while still producing a sanitary, highquality dry crop. The dry areca nut (Areca catechu) is frequently consumed throughout India as parts of a betel leaves. After simmering the nuts, many areca nut manufacturing enterprises now dry them out in the open sun for 5 to 6 days. All throughout heating process, its moisture content of dried areca nuts is lowered between 40% to 11% to ensure safe storage and food quality. According to the research, the gadget may elevate air temperature by 15-20 degrees Celsius.Furthermore, according with organoleptic test, each areca nut dry inside the electrical dryer device was completely protected against rain, bugs, and dust. The dried up areca nut outperformed the open sundried product in terms of flavour and colour, as well as time saving.

[1] Agricultural products go through three steps, which vary depending on the drying process utilised in time, based on the properties of both the air and the product The temperature of the product and the amount of humidity in the air change dramatically during these stages (Ajibola 1989; Akanbi et ., 2006). The first phase (during which the drying rate increases) is brief and corresponds to the product's temperature rising until it achieves equilibrium, at which point the product gets as much heat from the air as it needs to give the water to evaporate. The drying rate rises as that of the moisture interaction between both the material and the air becomes more efficient when the product is heated. The free evaporation of water on the second phase, which has a constant drying rate, corresponds to the free evaporation of water on first phase. The drying velocity remains constant throughout this phase as long as the qualities of the air and its velocity passing over the product remain consistent. The evaporation of bound water is represented by the third phase (a reduction in drying rate). By the conclusion of the second phase, the free water that had travelled from the substance to be transformed into water vapour has completely disappeared from the inside to the outside.Furthermore, the weakly bonded water evaporates first, making it the simplest to remove (Ajibola 1989; Akanbi et al., 2006).The water that is eliminated during the last drying process becomes increasingly securely bonded to the product, making it more difficult to extract. As the procedure progresses, the rate of drying reduces.

Key Words: Need for Electric areca nut drier, Working Principle and construction.

1. INTRODUCTION [3] In the processing, shipping, and storage of agricultural goods, drying is a critical step. The goal of drying would be to lower the product's water content to a level that prevents it from degrading within a certain time frame, which is usually referred to as the safe storage term. Contamination, animals, birds, insects, pests, and spoiling are all key drawbacks of open drying systems. A rapid change in meteorological conditions, such as wind or rain, is also a possibility. In the past, the sunlight was the sole source of heat and light for daily activities given the absence of electricity. As the use of fossil fuels and thermal power increases, so does the risk of climate change. [2] Future generations will have few resources to depend on this if we continue to utilise non renewable resources at the current rate. All of this has made us think about other power sources. The most frequent technique of drying by blowing is convective drying, often known as air drying. Warm air is blasted from the top rather than the bottom, or both, or over the merchandise. The object is warmed by the heated air, which then dissipates the wetness into the surroundings.

Impact Factor value: 7.529

2. COMPONENTS 2.1 DRYING CHAMBER [4] When an extremely low level of humidity is necessary, such as for keeping food or dehumidifying test materials,

ISO 9001:2008 Certified Journal

Page 2740