Development of a Small Scale Sugarcane Juice Extractor Using a Screw Pressing System

2011 ◽  
Vol 367 ◽  
pp. 699-709
Author(s):  
A.M. Olaniyan ◽  
O. O. Babatunde
Keyword(s):  
Single Phase ◽  
Economic Status ◽  
Sugarcane Juice ◽  
Small Scale ◽  
Prime Mover ◽  
Screw Pressing ◽  
Juice Yield ◽  
Juice Extraction ◽  
Extraction Unit ◽  
Low Costs

A small scale sugarcane juice extractor using a screw pressing system was designed, constructed and tested. Consideration was given to the techno-economic status of the micro and small scale sugarcane farmers and juice processors who are the intended users of the machine. The functional parts of the machine included grating unit, extraction unit, prime mover, pulley, transmission belts, bearings and frame. The machine was tested with two varieties of sugarcane each at three levels of moisture content and results showed that average grating efficiency and juice yield of 87.8 % and 2.5 % respectively were obtained. Powered by a 3 hp single-phase electric motor, the machine was constructed with materials being available locally at affordable costs. A cottage sugarcane juice extraction plant based on this technology could provide employment and at the same time produce sugarcane juice and bagasse at low costs for sugar and biofuel industries. An improvement in the design, analysis and optimization of the worm shaft and press cage is expected to improve the juice yield and extraction efficiency; hence, this is highly recommended.

Development of a Small Scale Machine for Recovering Bush Mango Kernel from Bush Mango Nut

2011 ◽  
Vol 367 ◽  
pp. 711-723
Author(s):  
A.M. Olaniyan
Keyword(s):  
Rural Communities ◽  
Electric Motor ◽  
Single Phase ◽  
Economic Status ◽  
Small Scale ◽  
Mango Kernel ◽  
Bush Mango

A small scale machine for recovering bush mango kernel from bush mango nut was designed, constructed and tested. Consideration was given to the techno-economic status of the micro and small scale bush mango processors living in the rural communities who are the intended users of the machine. The functional parts of the machine included feeding unit, cracking unit, winnowing unit and frame. The machine was tested with processed and unprocessed bush mango nuts and results showed that average cracking efficiency of 57.3 % and 19.3 % respectively were obtained. Powered by a 3 hp single-phase electric motor, the machine was constructed with readily available materials. It is recommended that, before cracking, bush mango should be processed by completely removing the fibrous mesocarp as this improves the efficiency of cracking and separation.

scholarly journals Design and Construction of a Small Scale Sugarcane Juice Extractor

2019 ◽  
pp. 1-8
Author(s):  
N. Oji ◽  
M. A. Gwarzo ◽  
U. S. Mohammed ◽  
I. Abubakar ◽  
J. K. Agunsoye ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Production Cost ◽  
Extraction Efficiency ◽  
Sugarcane Juice ◽  
Small Scale ◽  
Prime Mover ◽  
Scale Level ◽  
Brown Sugar ◽  
And Performance ◽  
Bioethanol Fuel

The production of sugarcane is increasing in Nigeria nowadays. Juice extracted from sugarcane can be used extensively in manufacturing brown sugar, industrial sugar and bioethanol fuel through the process of fermentation; hence, the need to develop a machine that can extract juice from sugarcane effectively. This work involves the design, fabrication and performance evaluation of sugarcane juice extractor. The machine was designed to extract juice from sugarcane at small scale level suitable for small and medium scale sugarcane processors. The prototype machine was designed, fabricated and assembled in the Department of Agricultural and Bio-resources Engineering, Ahmadu Bello University, Zaria. The machine consists of rollers, gears, cane guide, juice collector, frame, and prime mover. The developed machine was evaluated using koma variety of cane and obtained an output capacity of 148.2 kg/h and extraction efficiency of 67.44%, respectively at a speed of 30 rpm. The production cost stood at N 90,000 which is affordable and therefore recommended for small scale processors.

scholarly journals Features and Socio-Economic Sustainability of Traditional Chestnut Forestry Landscape in China: A Case of Kuancheng County, Hebei Province

Land ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 952
Author(s):  
Lulu He ◽  
Qingwen Min ◽  
Chuanchun Hong ◽  
Yongxun Zhang
Keyword(s):  
Economic Status ◽  
Northern China ◽  
Small Scale ◽  
Labor Input ◽  
Cultivation System ◽  
Cultural Sustainability ◽  
Ecological Farming ◽  
Farming Households ◽  
Effective Conservation ◽  
Difficult Issue

Since Important Agricultural Heritage Systems (IAHS) were launched by the FAO to protect the sustainable traditional agricultural systems around the world, their conservation has become a new difficult issue under the context of urbanization. Farmers in IAHS sites giving up small-scale traditional farming due to their low economic benefit and high labor intensity are considered as the main cause hindering effective conservation of these heritages. This study takes the Kuancheng traditional chestnut cultivation system (KTCCS) in northern China as a case to assess its economic and socio-cultural sustainability. Based on questionnaires and interviews, this study found that: the traditional ecological farming methods were still used by local farming households to plant chestnut trees; and most farmers support IAHS conservation. KTCCS performs economic and socio-cultural sustainability. For a household, the labor productivity of chestnut cultivation was 1.33 times that of their non-farm jobs because of the low labor input of chestnut cultivation. Farmers widely consider they live in a harmonious social environment but are lower than other households in economic status. Most farmers still lack an understanding of indigenous traditional knowledge and cultures. In the future, secondary and tertiary industries should be developed to provide farmers with employment opportunities in their hometowns for protecting KTCCS.

scholarly journals Rural Economic Development Through Women Entrepreneurship

2021 ◽  
pp. 98-103
Author(s):  
Dr. M. Vairavan ◽  
Ms. K. Kavitha
Keyword(s):  
Economic Development ◽  
Rural Women ◽  
Rural Areas ◽  
Women Entrepreneurs ◽  
Economic Status ◽  
Active Role ◽  
Small Scale ◽  
Interesting Phenomenon ◽  
Self Help Groups ◽  
The Impact

Majority of the rural women of SHGs are Micro - Entrepreneurs very few are associated with Small Scale Enterprises. Those women are not only developing with sustainable economy but also able to develop other women economically sustainable by providing job opportunities. The rural women entrepreneurs with the sustainable economic development are able to contribute to the family’s, community’s and the nation’s development. Rural women frequently have primary responsibility for agricultural production, in addition to domestic responsibilities and childcare. In developing country like India where economic status of women is very pathetic especially in rural areas and opportunities of earning are very less in this scenario the Self Help Groups (SHGs) have paved the way for economic independence of rural women. This paper reviews concisely the literature in this field and addresses in particular opportunities and challenges faced by women entrepreneurs in rural areas. It examined the impact on women empowerment through micro entrepreneurship development and SHGs. The increasing presence of women in the business field as entrepreneurs has changed the demographic characteristics of business and economic growth of the country. Women-owned businesses enterprises are playing a more active role in society and the economy, inspiring academics to focus on this interesting phenomenon. This paper focuses on the problems, issues, challenges faced by women entrepreneurs, how to overcome them and to analyze policies of India government for and problems faced by them while pursuing their business.

scholarly journals A Small Scale Biomass Fueled Gas Turbine Engine

1998 ◽  
Author(s):  
Joe D. Craig ◽  
Carol R. Purvis
Keyword(s):  
Gas Turbine ◽  
Power Plants ◽  
Small Scale ◽  
Brayton Cycle ◽  
Prime Mover ◽  
Turbine Engine ◽  
Rice Hulls ◽  
Turbine Component ◽  
The Cost ◽  
New Generation

A new generation of small scale (less than 20 MWe) biomass fueled, power plants are being developed based on a gas turbine (Brayton cycle) prime mover. These power plants are expected to increase the efficiency and lower the cost of generating power from fuels such as wood. The new power plants are also expected to economically utilize annual plant growth materials (such as rice hulls, cotton gin trash, nut shells, and various straws, grasses, and animal manures) that are not normally considered as fuel for power plants. This paper summarizes the new power generation concept with emphasis on the engineering challenges presented by the gas turbine component.

Investigation of the Effects of Completion Geometry on Single-Phase Liquid Flow Behavior in Horizontal Wells

2000 ◽  
Vol 123 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Weipeng Jiang ◽  
Cem Sarica ◽  
Erdal Ozkan ◽  
Mohan Kelkar
Keyword(s):  
Liquid Flow ◽  
Horizontal Well ◽  
Single Phase ◽  
Flow Behavior ◽  
Horizontal Wells ◽  
Main Flow ◽  
Test Facility ◽  
Small Scale ◽  
Phase Liquid ◽  
Single Phase Liquid Flow

The fluids in horizontal wells can exhibit complicated flow behaviors, in part due to interaction between the main flow and the influxes along the wellbore, and due to completion geometries. An existing small-scale test facility at Tulsa University Fluid Flow Projects (TUFFP) was used to simulate the flow in a horizontal well completed with either circular perforations or slotted liners. Single phase liquid flow experiments were conducted with Reynolds numbers ranging approximately from 5000 to 65,000 and influx to main flow rate ratios ranging from 1/50 to 1/1000. For both the perforation and slot cases, three different completion densities and three different completion phasings are considered. Based on the experimental data, new friction factor correlations for horizontal well with multiple perforation completion or multiple slots completion were developed using the principles of conservation of mass and momentum.

scholarly journals Profiling End User of Renewable Energy Sources among Residential Consumers in Poland

2018 ◽  
Vol 10 (12) ◽  
pp. 4452 ◽  
Author(s):  
Edyta Ropuszyńska-Surma ◽  
Magdalena Węglarz
Keyword(s):  
Renewable Energy ◽  
Economic Status ◽  
Renewable Energy Sources ◽  
User Profile ◽  
Energy Sources ◽  
Small Scale ◽  
Energy Awareness ◽  
End User ◽  
Main Determinants ◽  
Energy Utilities

This paper investigates the profile of end user of renewable energy sources (RES) among Polish households. Users differ in their sex, age, economic status, knowledge about energy, their attitudes toward RES and pro-ecological behavior therefore our focus was on exploring segmentation criteria. The main determinants of willingness to install small-scale RES among households were assumed as segmentation criteria. The research identified the correlation between the households’ willingness to install RES and (1) socio-economic and energy awareness variables, (2) pro-ecological and pro-effectiveness behaviors variables. The main determinants of RES adoption were explored using empirical analysis with data collected by the survey among 960 households in Lower Silesia, a southwest region in Poland in November and December of 2015. The importance of the variables was verified by a logit model. The discovery of the user profile is vital to obtain knowledge about users of small-scale generators to provide them personalized offer. The finding from this study could be valuable for local authority’s energy utilities that are involved for increasing the adoption rate of RES among households and for (e.g., services companies installing RES) that are interested in increasing number of RES installations.

Synchronization of a Single-phase Photovoltaic Generator With the Low-Voltage Utility Grid

2011 ◽  
Vol 134 (1) ◽  
Author(s):  
Nader Anani ◽  
Omar Al-Kharji ◽  
Prasad Ponnapalli ◽  
Saleh Al-Araji ◽  
Mahmoud Al-Qutayri
Keyword(s):  
Renewable Energy ◽  
Single Phase ◽  
Low Voltage ◽  
Phase Lock Loop ◽  
Phase Detector ◽  
Small Scale ◽  
Correct Operation ◽  
Phase Lock ◽  
Pv Inverter ◽  
Single Phase Inverter

The increased generation of electrical energy from renewable sources and its integration into the low voltage grid have necessitated regulations governing the connection of renewable energy generators to the grid. This was deemed necessary to preserve the integrity and the correct operation of the grid. This paper presents a new architecture of a hybrid phase lock loop circuit topology for synchronizing a single-phase inverter fed from a renewable energy source such as a photovoltaic (PV) generator to the low voltage grid. The system uses a digital phase lock loop (DPLL) architecture, which is based on the arctan phase detector, driving a phase lock loop (PLL) to synchronize a PV inverter with the grid. The proposed system has been tested by simulation using simulink/matlab. The test results demonstrate the ability of the system to synchronize a PV inverter with the grid and to re-establish synchronization following a sudden perturbation in the grid voltage such as a single or a multistep change in phase. The system is digital and can be readily implemented using an FPGA (field programmable gate array) and hence can be easily embedded in a home or small scale single-phase PV inverter.

Optimum Microturbine Sizing in Small Scale CHP Systems

2011 ◽  
Author(s):  
Mehdi Aghaei Meybodi ◽  
Masud Behnia
Keyword(s):  
Power Systems ◽  
Carbon Tax ◽  
Combined Heat And Power ◽  
Small Scale ◽  
Optimum Number ◽  
Prime Mover ◽  
Present Worth ◽  
Prime Movers ◽  
Chp System ◽  
The Impact

Microturbines are ideally suited for distributed generation applications due to their flexibility in connection methods. They can be stacked in parallel for larger loads and provide stable and reliable power generation. One of the main applications of microturbines is operating as the prime mover in a combined heat and power (CHP) system. CHP systems are considered to be one of the best ways to produce heat and power with efficient fossil fuel consumption. Further, these systems emit less pollution compared to separate productions of the same amount of electricity and heat. In order to optimally benefit from combined heat and power systems, the proper sizing of prime movers is of paramount importance. This paper presents a technical-economic method for selecting the optimum number and nominal power as well as planning the operational strategy of microturbines as the prime movers of small scale combined heat and power systems (capacities up to 500 kW) in three modes of operation: one-way connection (OWC) mode, two-way connection (TWC) mode, and heat demand following (HDF) mode. In the proposed sizing procedure both performance characteristics of the prime mover and economic parameters (i.e. capital and maintenance costs) are taken into account. As the criterion for decision making Net Present Worth (NPW) is used. In our analysis we have also considered the impact of carbon tax on the economics of generation. The proposed approach may also be used for other types of prime movers as well as other sizes of CHP system.

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