scholarly journals 2-Dimensional inline system for peppermint oil extraction

2021 ◽  
Vol 1206 (1) ◽  
pp. 012015
Author(s):  
M Anas ◽  
A Sharma

Abstract Peppermint leaves have wide range of applications in medicines, toothpastes, soaps, mouth fresheners, chewing gums etc. However, in India, the traditional way of processing peppermint leaves for extraction of peppermint oil is slow, tedious, labour intensive, hazardous, and causes skin problem as well. This paper proposes a method of mechanizing the post harvesting process, with least modification in the current apparatus being used by the farmers in the Indian villages. It proposes a non-electric 2-dimensional Mechanized system for movement and compaction of the compact/hay. The mechanism will help to reduce the number of labourers per unit hay volume and the risk associated with the contact of in-process hay with their skin. Also, a lot of time is wasted in putting the leaves/hay in the boiler vessel, preparing the hay in a compact form and in removing the processed leaves. This paper is an attempt to get rid of most of the problems aforementioned and make the process safe, efficient, less labour intensive and more economical for farmers and workers. The mechanism proposed is sustainable and farmer friendly as it does not require any special training for its operation. It will increase the profit of small scale industries with small capital investment for the setup.

1976 ◽  
Vol 15 (4) ◽  
pp. 382-405
Author(s):  
Janet Farooq ◽  
Ghazi M. Farooq ◽  
Aderanti Adepoju

With meagre capital investment but with, supposedly, higher labour pro¬ductivity than in agriculture, small-scale industries can be an important source of employment as well as a healthy contributor to industrial production in a developing country like Nigeria. A study of the Pakistan-Indian situation has shown that normally the highest employment per unit of capital is found in very small firms (of 20 or less workers). Such firms sometimes have the distinct short-term advantage of both lower capital-labour and capital-output ratios than larger establishments [20]. In fact, if the small-scale industrial sector is encouraged within a favourable economic environment, it can play an important role in economic development at least in the transitional state.


2012 ◽  
Vol 3 (7) ◽  
pp. 1-3
Author(s):  
Dr. A. Jeyapragash Dr. A. Jeyapragash ◽  
◽  
R. Boopathi R. Boopathi

2019 ◽  
Vol 5 (4) ◽  
pp. 160-169
Author(s):  
Srimo Fernandas

In the economic growth of a country, the human factor plays a vital role. The study has been made to study the growth of small scale industries in the development of human resource management practices of in Thoothukudi district. The study has the following objectives. To study the socio-economic outline of the small scale industry owners. To understand the nature of management of the small-scale industry. To find out the motivational factors for starting small-scale industries. To analyse the average income generated by different activities by the small scale industry owners.


2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Manidipa Dasgupta

Micro and Small Enterprises (MSEs) [formerly Tiny and Small Scale Industries (SSIs)] are recognized as the main contributors in socio-economic advancement of any country especially the developing one like India. But due to some controllable and/or uncontrollable factors, MSEs cannot get themselves free from sickness. Sickness in MSEs expands its steps in all states in India amongst which West Bengal (WB) is specially notable mainly due to the continuous degradation of Micro and Small Engineering Enterprises of the then Birmingham/Sheffield of the East, Howrah. In WB, Howrah is considered to be the most incipient sickness-prone district for MSEs. Government effort to locate the probable causes of sickness of MSEs has exposed that in India, lack of demand of the product of MSEs in market is the most sever one, while in WB, marketing problem holds the maximum severity, followed by lack of demand which is also partially due to the marketing problem. The present paper aims at identifying how far the major responsible causes in marketing related area are liable in bringing about sickness in Micro and Small Engineering Enterprises.


Author(s):  
J. Schiffmann

Small scale turbomachines in domestic heat pumps reach high efficiency and provide oil-free solutions which improve heat-exchanger performance and offer major advantages in the design of advanced thermodynamic cycles. An appropriate turbocompressor for domestic air based heat pumps requires the ability to operate on a wide range of inlet pressure, pressure ratios and mass flows, confronting the designer with the necessity to compromise between range and efficiency. Further the design of small-scale direct driven turbomachines is a complex and interdisciplinary task. Textbook design procedures propose to split such systems into subcomponents and to design and optimize each element individually. This common procedure, however, tends to neglect the interactions between the different components leading to suboptimal solutions. The authors propose an approach based on the integrated philosophy for designing and optimizing gas bearing supported, direct driven turbocompressors for applications with challenging requirements with regards to operation range and efficiency. Using previously validated reduced order models for the different components an integrated model of the compressor is implemented and the optimum system found via multi-objective optimization. It is shown that compared to standard design procedure the integrated approach yields an increase of the seasonal compressor efficiency of more than 12 points. Further a design optimization based sensitivity analysis allows to investigate the influence of design constraints determined prior to optimization such as impeller surface roughness, rotor material and impeller force. A relaxation of these constrains yields additional room for improvement. Reduced impeller force improves efficiency due to a smaller thrust bearing mainly, whereas a lighter rotor material improves rotordynamic performance. A hydraulically smoother impeller surface improves the overall efficiency considerably by reducing aerodynamic losses. A combination of the relaxation of the 3 design constraints yields an additional improvement of 6 points compared to the original optimization process. The integrated design and optimization procedure implemented in the case of a complex design problem thus clearly shows its advantages compared to traditional design methods by allowing a truly exhaustive search for optimum solutions throughout the complete design space. It can be used for both design optimization and for design analysis.


Author(s):  
Michele Righi ◽  
Giacomo Moretti ◽  
David Forehand ◽  
Lorenzo Agostini ◽  
Rocco Vertechy ◽  
...  

AbstractDielectric elastomer generators (DEGs) are a promising option for the implementation of affordable and reliable sea wave energy converters (WECs), as they show considerable promise in replacing expensive and inefficient power take-off systems with cheap direct-drive generators. This paper introduces a concept of a pressure differential wave energy converter, equipped with a DEG power take-off operating in direct contact with sea water. The device consists of a closed submerged air chamber, with a fluid-directing duct and a deformable DEG power take-off mounted on its top surface. The DEG is cyclically deformed by wave-induced pressure, thus acting both as the power take-off and as a deformable interface with the waves. This layout allows the partial balancing of the stiffness due to the DEG’s elasticity with the negative hydrostatic stiffness contribution associated with the displacement of the water column on top of the DEG. This feature makes it possible to design devices in which the DEG exhibits large deformations over a wide range of excitation frequencies, potentially achieving large power capture in a wide range of sea states. We propose a modelling approach for the system that relies on potential-flow theory and electroelasticity theory. This model makes it possible to predict the system dynamic response in different operational conditions and it is computationally efficient to perform iterative and repeated simulations, which are required at the design stage of a new WEC. We performed tests on a small-scale prototype in a wave tank with the aim of investigating the fluid–structure interaction between the DEG membrane and the waves in dynamical conditions and validating the numerical model. The experimental results proved that the device exhibits large deformations of the DEG power take-off over a broad range of monochromatic and panchromatic sea states. The proposed model demonstrates good agreement with the experimental data, hence proving its suitability and effectiveness as a design and prediction tool.


Author(s):  
Abdulrazaq Nafiu Abubakar ◽  
Suman Lata Dhar ◽  
Abdullateef Abba Tijjani ◽  
Auwalu Muhammad Abdullahi

2019 ◽  
Vol 11 (8) ◽  
pp. 2400 ◽  
Author(s):  
Karthikeyan Mariappan ◽  
Deyi Zhou

Agriculture is the main sources of income for humans. Likewise, agriculture is the backbone of the Indian economy. In India, Tamil Nadu regional state has a wide range of possibilities to produce all varieties of organic products due to its diverse agro-climatic condition. This research aimed to identify the economics and efficiency of organic farming, and the possibilities to reduce farmers’ suicides in the Tamil Nadu region through the organic agriculture concept. The emphasis was on farmers, producers, researchers, and marketers entering the sustainable economy through organic farming by reducing input cost and high profit in cultivation. A survey was conducted to gather data. One way analysis of variance (ANOVA) has been used to test the hypothesis regards the cost and profit of rice production. The results showed that there was a significant difference in profitability between organic and conventional farming methods. It is very transparent that organic farming is the leading concept of sustainable agricultural development with better organic manures that can improve soil fertility, better yield, less input cost and better return than conventional farming. The study suggests that by reducing the cost of cultivation and get a marginal return through organic farming method to poor and small scale farmers will reduce socio-economic problems such as farmers’ suicides in the future of Indian agriculture.


Sign in / Sign up

Export Citation Format

Share Document