The effect of acoustic and solar energy on drying process of pistachios

2013 ◽  
Vol 67 ◽  
pp. 351-356 ◽  
Author(s):  
Ahmad Kouchakzadeh
Keyword(s):  
Solar Energy ◽  
Drying Process

scholarly journals Solar Dryer with Integrated Energy Unit

2021 ◽  
Vol 2(50) ◽  
Author(s):  
Sergey Korobka ◽  
◽  
Sergey Syrotyuk ◽  
Dmitry Zhuravel ◽  
Boris Boltianskyi ◽  
...  
Keyword(s):  
Heat Exchange ◽  
Solar Energy ◽  
Moisture Transfer ◽  
Diagnostic Techniques ◽  
Material Surface ◽  
Drying Process ◽  
Energy Unit ◽  
Solar Dryer ◽  
Exchange Processes ◽  
Deformed State

The work is devoted to the issue of the rational use of the solar energy in the technological process of fruit drying based on the use of solar drying devices, which are applied in various sections of the agro-industrial centers of Ukraine. The aim of this research was intensification of the fruits drying process using the solar energy by combining an air collector and drying chamber into a single power unit. To achieve the aim the heat exchange diagnostic techniques with alternative potentials of diffusion and moisture transfer was developed. This technique differs from those existing for the heat exchange research in that it allows the intensity of the moisture evaporation from a unit of the material surface to be calculated, based on the synthesis of the moisture content and the irreversible major laws of processes of the heat exchange characteristics of the fruits drying using the solar dryer. The above model makes it possible to diagnose the heat exchange processes and analyze the mathematical model of the heat exchange processes. It also allows modeling the changeable diffusion and moisture transfer potentials based on the dependences obtained and for the purpose of a further application in the methods and devices development to control the strain-deformed state of the fruits during the drying process. The method is offered for the calculation of diffusion and moisture transfer during drying fruits in the solar dryer.

Experiment and Analytical Studies Jujube Drying by the Solar Assisted Convection Drying

Solar Energy ◽  
2004 ◽  
Author(s):  
Minghu Cui
Keyword(s):  
Solar Energy ◽  
Drying Process ◽  
Drying Characteristics ◽  
Hot Air ◽  
Air Convection ◽  
Jujube Fruit ◽  
Save Energy ◽  
Drying Curves ◽  
Mass Transfers ◽  
And Behavior

An experimental setup, a mini-cabinet with reflector at its top, has been designed to study the drying process of jujube fruit by the convection and the solar radiation with hot air convection. The research experimentally investigated the drying characteristics and behavior of heat and mass transfer. Also, drying curves were analyzed. It demonstrated that solar energy could play an important role in promoting heat and mass transfers and saves energy consumed. The optimum conditions of appropriated temperature and humidity were obtained to save energy in solar energy convection drying process.

Textile Drying Using Solar Process Steam

1979 ◽  
Author(s):  
M. E. Beesing
Keyword(s):  
High Temperature ◽  
Solar Energy ◽  
Steam Generator ◽  
Solar Collector ◽  
Drying Process ◽  
Parabolic Trough ◽  
Collector System ◽  
High Temperature Water ◽  
Process Heat ◽  
Temperature Water

This paper describes a solar energy collector system for providing process heat to a textile drying process in a WestPoint Pepperell mill in Fairfax, Alabama. The solar collector system uses 24 single axis tracking parabolic trough concentrating collectors to heat water in a high temperature water loop. The high temperature water fuels a steam generator to provide process steam. The process that was solarized is a textile drying process using cylindrical can dryers. The dryers are utilized in the slashing operation, a textile process where yarn is treated with sizing in preparation for weaving.

Pengeringan Jagung Menggunakan Alat Pengering Efek Rumah Kaca dengan Sumber Energi Surya dan Biomassa Tongkol Jagung

Agrotek ◽  
2018 ◽  
Vol 2 (4) ◽  
Author(s):  
Wilson Palelingan Aman
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Heat Source ◽  
Specific Energy Consumption ◽  
Initial Moisture Content ◽  
Heat Energy ◽  
Agricultural Products ◽  
Water Tank ◽  
Drying Process ◽  
Drying Time

Drying process is one of important stage in handling of agricultural products. However, this process required much energy to remove moisture from the product. Because of that, it was needed a dryer to remove water from inside of products. A dryer with solar energy as a heat source combined with heat energy from corncob biomass was designed and used in corn dried. The dryer is usually known as green house effect-hybrid (GHE-hybrid). GHE-hybrid consists of absorber, product holder, fans to remove moisture from dried product, heat exchanger, stove and water tank. The heat source used in dryer comes from solar radiation and biomass burned in stove. The objective of this research was to evaluate performance of dryer use solar energy and corncob as heating sources. Results of this research showed that drying process of 1526 kg of corn with initial moisture content 25.7% wet basic until 16.7% wet basic needed drying time of 14 hours. The corncobs that were needed to remove the moisture was about 180 kg. The energy calculated in this drying process from corncob, diesel fuel, solar radiation which were about 3150 MJ or 62%, 1739.71MJ or 34%, 204.94 MJ or 4%, respectively. The research also found that the thermal eficiency of dryer was 28%, eficiency of drying heat was 59.62%, total eficiency was 11.23% and specific energy consumption was 31522,52 kJ/kg.

Study of the Lemon Drying Process Using a Solar Dryer

2015 ◽  
Author(s):  
Hilario Terres ◽  
Sandra Chavez ◽  
Raymundo Lopez ◽  
Arturo Lizardi ◽  
Araceli Lara ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Solar Energy ◽  
Boundary Conditions ◽  
Density Distribution ◽  
Drying Process ◽  
Know How ◽  
Solar Dryer ◽  
Compact Field ◽  
Complete Study ◽  
Several Intervals

A complete study for a solar dryer is shown. In this work the lemon drying process is considered. Also, results for temperature distribution, currents lines velocities and density distribution are presented inside of the dryer chamber. Curves for dried are obtained when the lost mass of the lemon is measured. For this purpose, a digital balance is used and during several intervals of time the measures are done. A Compact Field point device of National Instrument is used to measure temperatures inside of the chamber in the dryer. Thermocouples k-type were placed in different points. By acquisition data, the values of temperature were measured for the test. By means of software (ANSYS) is discretized the inner zone and using the temperatures as boundary conditions. Solving the system defined for the equations according to the mesh defined, temperature, velocities and densities are determined. The results allowing to identify what is the behavior inside of the dryer and how the drying process happens. This way to study the drying process can be useful when the behavior inside of the chamber wants to be evaluated. In addition, this work can be useful in the design of solar dryers because allows to know how the trays can be placed to take advantage in the best way the solar energy in solar dryers.

Application of Grey Prediction in a Solar Energy-Assisted Photocatalytic Low-Pressure Drying Process

2010 ◽  
Vol 28 (9) ◽  
pp. 1097-1106 ◽  
Author(s):  
Ho-Hsien Chen ◽  
Chao-Chin Chung ◽  
Chih-Hsiang Hsu ◽  
Tzou-Chi Huang
Keyword(s):  
Solar Energy ◽  
Low Pressure ◽  
Grey Prediction ◽  
Drying Process

scholarly journals Design of an Indirect Dryer with Coupling of Solar Collectors and its Thermal Characterization by Drying the Mint Leaves (Mentha spicate)

2021 ◽  
Vol 10 (1) ◽  
pp. 411
Author(s):  
Margarita Castillo Téllez ◽  
Beatriz Castillo-Téllez ◽  
Alberto Mejía Pérez Gerardo ◽  
Rachid Marzoug ◽  
Diana C. Mex Álvarez
Keyword(s):  
Solar Energy ◽  
Energy Savings ◽  
Thermal Characterization ◽  
Solar Air Heater ◽  
Drying Process ◽  
Efficient Technology ◽  
Water Heaters ◽  
Hot Air ◽  
Evacuated Tubes ◽  
Dry Food

Man has used solar energy to dry perishable products for many years, managing to preserve a wide variety of foods naturally; drying is a method that highly respects the food's properties and nutritional content. The consumption of medicinal and aromatic herbs in Mexico is traditional and widespread. In this work, an analysis of an indirect solar dryer's thermal behavior was carried out with the coupling of solar technologies (water heaters and air collectors and photovoltaic pumping as an aid to the generation of hot air) comparing with electric oven drying in Campeche, Campeche, Mexico. The experimental results showed that the indirect tunnel type dryer that works with evacuated tubes and solar air heater simultaneously is the most efficient technology, with average drying times of 300 min and final humidity of 9.6%. A study of colorimetry, water activity, and drying speed was carried out to control the drying process. It was found that it is possible to use solar energy to dry food as a means of conservation in warm-humid climates, also obtaining significant energy savings and contributing to caring for the environment.

Design and Analysis of Concentrated Solar-Energy Assisted Paddle Dryers

2014 ◽  
Vol 353 ◽  
pp. 73-78
Author(s):  
Jiang Yong Du ◽  
Xin Zhi Liu ◽  
Hou Lei Zhang
Keyword(s):  
Energy Consumption ◽  
Solar Energy ◽  
Critical Issue ◽  
Storage Tanks ◽  
System Configuration ◽  
Drying Process ◽  
Concentrated Solar Energy ◽  
Drying System ◽  
Drying Technology ◽  
Radiation Conditions

Paddle dryer, one kind of indirect dryers, is widely used in removing moisture content of many materials, such as brown coal, sewage sludge, and biomass. For many applications, the materials to be dried are low-valued or even wastes, so the drying energy consumption becomes the critical issue. One way to reduce the energy consumption is to introduce solar-drying technology. In this paper, firstly, we present a paddle dryer system configuration with concentrated solar energy (CSE) device, which consists of trough-type collectors, thermal storage tanks and auxiliary parts. Then a calculating model is developed to design the drying system. Examples with typical solar radiation conditions in Nanjing, China are illustrated. The energy-saving rate (η), i.e. the ratio of the provided solar energy to the total energy required by the drying process on one-day basis, is evaluated. The developed lab prototype is finally described in brief.

scholarly journals INOVASI PENGERING IKAN MENGGUNAKAN HOME DRIED SYSTEM UNTUK MENINGKATKAN PRODUKSI IKAN PAKANG DESA KUALA GEULUMPANG KECAMATAN JULOK KABUPATEN ACEH TIMUR

2021 ◽  
Vol 4 (1) ◽  
pp. 20
Author(s):  
Puji Wahyuningsih ◽  
Wan Alamsyah ◽  
Rachmad Almi Putra ◽  
T. Andi Fadlly
Keyword(s):  
Solar Cell ◽  
Solar Energy ◽  
Rainy Season ◽  
Weather Conditions ◽  
Business Group ◽  
Drying Process ◽  
Service Program ◽  
Fish Products ◽  
Color Quality

Kuala Geulumpang village is one of the villages in Julok subdistrict where most of the community is a business group that processes fish into cracker or known as pakang fish. One of the problems experienced by the business group is the drying process, especially in the rainy season which result decrease in the color quality and taste of pakang fish products. This service program aims to provide a solution for drying media that is not depend by weather conditions, namely a home dried system using an integrated solar panel media based on solar energy through solar cell and current batteries storage. This method has advantages compared with conventional methods are that are not affected by the weather, faster the drying process, minimizes fish damage caused by decaying so that the quality of the product is maintained and can be accepted by consumers on time. Through the application of fish dryer technology is expected to increase the production and quality of pakang fish produced by the community of Kuala Geulumpang Village so that it can improve the community's economy.

Sign in / Sign up

Export Citation Format

Share Document