scholarly journals Convective Drying at Fish Chips Technology

2020 ◽  
Author(s):  
Vyacheslav Pokholchenko ◽  
Aleksandra Smirnova ◽  
Yana Glukhikh

The article presents the overview of the main technological processes in fish structured products dehydration. The rational modes of the technological process of minced fish raw materials with various initial moisture and fat content heat treatment are determined. One of the main tasks of the fish processing industry development which allows increasing the profitability of products and their quality is improving technological processes. The scientifically substantiated choice of resource and energy-saving modes of processing food materials is highly important in this case. It will reduce not only production costs but also emissions of harmful substances into the environment and increase the efficiency of using equipment. It must be taken into consideration that the optimization of dehydration technological processes without identifying their patterns is extremely difficult. Increasing efficiency and controlling technological processes makes sense only on the basis of patterns. The effectiveness of the hydrobionts processing determines the quality and cost of finished products manufacturing while fish processing enterprises working. The development and implementation of highly efficient technologies with the use of resource-saving technical systems, for example, using heat pumps, makes it possible to produce cost-effective high-quality products.

Author(s):  
В.И. Голик ◽  
О.Г. Бурдзиева ◽  
Б.В. Дзеранов ◽  
Х.О. Чотчаев

Актуальность проблемы комплексного освоения и сохранения недр в настоящее время повышается необходимостью совершенствования основанных на новых принципах технологических процессов, что объясняет необходимость разработки новых и модернизации известных методов управления геодинамическими явлениями в массиве. Объектом исследования являются скальные сложно-структурные месторождения Садонской группы Центрального Кавказа, разработка которых увеличивает напряжения в рудовмещающих массивах с ухудшением качественных показателей использования недр и делает необходимым учет технологических воздействий на массив и меры геомеханического мониторинга его состояния. Целью исследования является обоснование возможности и целесообразности использования продуктов горного и обогатительного передела руд и изготовленных на их основе после извлечения из них полезных компонентов закладочных смесей. Методы достижения поставленной цели исследования включают в себя систематизацию и ранжирование связанных с управлением массивом геологических, технологических и экономических данных, разработку критериев оптимальности и формирование концепции ресурсосберегающей технологии разработки месторождений. Результаты. Детализирована концепция управления геомеханикой рудовмещающих массивов. Дано условие прочности массива на различных стадиях разработки месторождения. Предложена математическая модель взаимодействия переменных факторов. Сформулирован механизм сочетания традиционной технологии с открытым выработанным пространством и новой технологии с выщелачиванием металлов, как в блоках, так и в дезинтеграторах. Даны результаты оценки возможности использования хвостов обогащения в качестве сырья для изготовления твердеющих смесей, полученные в ходе полнофакторных исследований по программам государственных грантов. Даны сведения о гидрохимических способах получения металлов на рудниках. Вмещающим породам Садонских месторождений характерно перераспределение напряжений, в том числе, в геодинамическом режиме. Управление геодинамикой рудовмещающих пород путем регулирования величины напряжений в рудовмещающих массивах требует использования искусственных массивов из хвостов технологических процессов. Показано, что отработка вовлекаемых в производство некондиционных руд и хвостов обогащения запасов и доработка имеющихся запасов по комбинированной схеме может быть рентабельной Relevance of the problem of integrated development and conservation of mineral resources is currently increasing by the need to improve technological processes based on new principles, which explains the need to develop new and modernize well-known methods for managing geodynamic phenomena in the massif. Aim.The object of the study is the rock complex structural deposits of the Sadon group of the Central Caucasus, the development of which increases stresses in ore-bearing massifs with a deterioration in the quality of subsoil use and makes it necessary to take into account technological impacts on the massif and measures of geomechanical monitoring of its condition. The aim of the study is to substantiate the feasibility and advisability of using the products of mining and concentration processing of ores and made on their basis after extracting from them the useful components of filling mixtures. Methods to achieve the research goal include systematization and ranking of geological, technological and economic data related to managing an array of data, development of optimality criteria and the formation of a concept for resource-saving technology for field development. Results. The concept of managing the geomechanics of ore-bearing arrays is detailed. The condition of the array strength at various stages of field development is given. A mathematical model of the interaction of variable factors is proposed. The mechanism of combining traditional technology with open mined space and a new technology with leaching of metals, both in blocks and in disintegrators, is formulated. The results of evaluating the possibility of using enrichment tailings as raw materials for the manufacture of hardening mixtures, obtained in the course of full-factor studies on state grant programs. Information is given on hydrochemical methods for producing metals in mines. The host rocks of the Sadon deposits are characterized by a redistribution of stresses, including in the geodynamic regime. Management of the geodynamics of ore-bearing rocks by regulating the magnitude of stresses in ore-bearing massifs requires the use of artificial arrays from the tailings of technological processes. It is shown that the mining of substandard ores and tailings from the enrichment of reserves involved in the production and the refinement of existing reserves using a combined scheme can be cost-effective


Author(s):  
Zh.O. Petrova ◽  
◽  
Yu.F. Sniezhkin ◽  
K.S. Slobodianiuk ◽  
◽  
...  

The monograph is devoted to solving the problem of energy-saving and development of resource-saving heat technology for processing soybeans and their mixtures with carotene-containing raw materials on functional phytoestrogenic food powders. The paper considers modern research and methods of processing phytoestrogenic raw materials. The study of heat and mass transfer processes during convective drying and the study of thermophysical and physicochemical properties of phytoestrogenic raw materials and its proteincarotene mixtures are presented. Innovative heat technology for the production of phytoestrogenic powders based on soybeans, recommended for use in the pharmaceutical, dairy and food industries, has been developed. The monograph is intended for employees of the food industry, students of higher educational institutions, masters and graduate students of engineering and technical specialties.


Paradigm ◽  
2005 ◽  
Vol 9 (2) ◽  
pp. 86-95
Author(s):  
V.K. Khanna

Waves of liberalization are sweeping all over the world breaking political barriers, integrating world capital and financial markets, opening up international trade and freeing import of technology or raw materials from licenses. New challenges and opportunities have been thrown up. The new economic scenario has also brought in risks of increased competition. As the customer is supreme, only those enterprises are going to be successful, which are able to provide goods and services to the customer in a timely cost-effective manner and also provide quality, which not only satisfies him but delights him. This means that the enterprise has to manage its operations in such a way that the production costs and delivery costs are kept to the minimum and margins are optimized. Simultaneously, it has to build a culture of quality and productivity because without that it is just not possible to survive. Finally, to stay always one step ahead of the competition, there has to be an element of creativity. Advance Product Quality Planning and Production Part Approval Process help the organization to be creative and innovative in approach in addressing all customers' related issues. Both these tools are very important while implementing quality management system requirements pertaining to ISO/TS 16949:2002. These tools are generic in nature and can help any type of industry. Effective implementation of PPAP will help the supply chain to improve the quality of the product, reduce the cost by optimal use of resources and maintain on time delivery at competitive cost.


2007 ◽  
Vol 1 (1) ◽  
pp. 52-58 ◽  
Author(s):  
H. Papapostolou ◽  
L.A. Bosnea ◽  
M. Kanellaki ◽  
A.A. Koutinas

Thermally dried thermophilic K. marxianus has proved to be an effective starter culture for whey fermentation. Convective drying of K. marxianus can be performed effectively in the range 35-60oC. The best drying temperature for is considered 35oC since it is the most cost effective without any substantial difference in kinetic parameters when compared with higher temperatures. The impact of thermally dried starter culture of K. marxianus is high, since several products could be produced from whey, such as potable and fuel-grade alcohol, baker’s yeast, SCP to feed animals and a Kefir drink-type. Furthermore, the economical impact of thermally dried starter culture production is essential, since it may lead small dairy enterprises to treat their own whey by producing added value products and protecting the environment from this much polluted liquid. GC-MS analysis of fermented whey indicates that it contains volatiles similar to traditional drinks produced from vegetable raw materials.


2020 ◽  
Vol 3 (9) ◽  
pp. 208-210
Author(s):  
Mamadalieva N.A

In conditions of a high level of industrialization of the economy, the production process is accompanied by the consumption of a significant amount of resources. Due to the fact that material costs account for more than half of production costs, a decrease in the latter is the most important qualitative indicator of economic development. Saving raw materials, materials, fuel, energy helps to reduce the cost of production and the need for capital investments, the introduction of scientific and technological advances, the establishment of new balance relations and economic balance, an increase in production, and an improvement in the financial situation of enterprises.


Author(s):  
SAFITRI NURHIDAYATI ◽  
RIZKI AMELYA SYAM

This study aims to analyze whether the difference that occurs in the cost of raw materials, direct labor, and factory overhead costs between the standard costs and the actual costs in PLTU LATI is a difference that is favorable or unfavorable. Data collection techniques with field research and library research. The analytical tool used is the analysis of the difference in raw material costs, the difference in direct labor costs and the difference in factory overhead costs. The hypothesis in this study is that the difference allegedly occurs in the cost of raw materials, direct labor costs, and factory overhead costs at PT Indo Pusaka Berau Tanjung Redeb is a favorable difference. The results showed that the difference in the cost of producing MWh electricity at PT Indo Pusaka Berau Tanjung Redeb in 2018, namely the difference in the price of raw material costs Rp. 548,029.80, - is favorable, the difference in quantity of raw materials is Rp. 957,216,602, - is (favorable) , the difference in direct labor costs Rp 2,602,642,084, - is (unfavorable), and the difference in factory overhead costs Rp 8,807,051,422, - is (favorable) This shows that the difference in the overall production cost budget is favorable or profitable. This beneficial difference shows that the company is really able to reduce production costs optimally in 2018.  


2019 ◽  
Vol 70 (11) ◽  
pp. 3835-3842
Author(s):  
Mihai Dumitru Tudor ◽  
Mircea Hritac ◽  
Nicolae Constantin ◽  
Mihai Butu ◽  
Valeriu Rucai ◽  
...  

Direct use of iron ores in blast furnaces, without prior sintering leads to a reduction in production costs and energy consumption [1,2]. Fine-grained iron ores and iron oxides from ferrous wastes can be used together with coal dust and limestone in mixed injection technology through the furnace tuyeres. In this paper are presented the results of experimental laboratory investigations for establishing the physic-chemical characteristics of fine materials (iron ore, limestone, pulverized coal) susceptible to be used for mixed injection in blast furnace. [1,4]. The results of the experimental research have shown that all the raw materials analyzed can be used for mixt injection in blast furnace.


Author(s):  
Florian Ielpo

This chapter covers the economic fundamentals of commodity markets (i.e., what shapes the evolution of the price of raw materials) in three steps. First, it covers the theories explaining why the futures curve can be upward or downward sloping, an essential element for commodity producing companies. The evolution of inventories and hedging pressures are the two dominant sources of explanation. Second, the chapter reviews the fundamentals of commodity spot prices: technologies, supply, demand, and speculation. Production costs draw the long-term evolution of prices, but demand and supply shocks can trigger substantial variations in commodity prices. Third, the chapter presents how commodity prices interact with the business cycle. Commodities are influenced by the world activity but can also have a material impact on it.


2018 ◽  
Vol 27 (4) ◽  
pp. 096369351802700 ◽  
Author(s):  
Mehmet Önal ◽  
Gökdeniz Neşer

Glass reinforced polyester (GRP), as a thermoset polymer composites, dominates boat building industry with its several advantages such as high strength/weight ratio, cohesiveness, good resistance to environment. However, proper recovering and recycling of GRP boats is became a current environmental requirement that should be met by the related industry. In this study, to propose in a cost effective and environmentally friendly way, Life Cycle Assessment (LCA) has been carried out for six scenarios include two moulding methods (namely Hand Lay-up Method, HLM and Vacuum Infusion Method, VIM) and three End-of-Life (EoL) alternatives(namely Extruding, Incineration and Landfill) for a recreational boat's GRP hulls. A case study from raw materials purchasing phase to disposal/recycling stages has been established taking 11 m length GRP boat hull as the functional unit. Analysis show that in the production phase, the impacts are mainly due to the use of energy (electricity), transport and raw material manufacture. Largest differences between the methods considered (HLM and VIM) can be observed in the factors of marine aquatic ecotoxicity and eutrophication while the closest ones are abiotic depletion, ozon layer depletion and photochemical oxidation. The environmental impact of VIM is much higher than HLM due to its higher energy consumption while vacuum infusion method has lower risk than hand lay-up method in terms of occupational health by using less raw material (resin) in a closed mold. In the comparison of the three EoL techniques, the mechanical way of recycling (granule extruding) shows better environmental impacts except terrestrial ecotoxicity, photochemical oxidation and acidification. Among the EoL alternatives, landfill has the highest environmental impacts except ‘global warming potential’ and ‘human toxicity’ which are the highest in extrusion. The main cause of the impacts of landfill is the transportation needs between the EoL boats and the licenced landfill site. Although it has the higher impact on human toxicity, incineration is the second cleaner alternative of EoL techniques considered in this study. In fact that the similar trend has been observed both in production and EoL phases of the boat. It is obvious that using much more renewable energy mix and greener transportation alternative can reduce the overall impact of the all phases considerably.


2020 ◽  
Vol 27 (1) ◽  
pp. 424-432
Author(s):  
Hongkai Zhao ◽  
Kehan Zhang ◽  
Shoupeng Rui ◽  
Peipei Zhao

AbstractIn the present contribution, an environmental-friendly and cost-effective adsorbent was reported for soil treatment and desertification control. A novel foam gel material was synthesized here by the physical foaming in the absence of catalyst. By adopting modified microcrystalline cellulose and chitosan as raw materials and sodium dodecyl sulfonate (SDS) as foaming agent, a microcrystalline cellulose/chitosan blend foam gel was synthesized. It is expected to replace polymers derived from petroleum for agricultural applications. In addition, a systematical study was conducted on the adsorbability, water holding capacity and re-expansion performance of foam gel in deionized water and brine under different SDS concentrations (2%–5%) as well as adsorption time. To be specific, the adsorption capacity of foam gel was up to 105g/g in distilled water and 54g/g in brine, indicating a high water absorption performance. As revealed from the results of Fourier transform infrared spectroscopy (FTIR) analysis, both the amino group of chitosan and the aldehyde group modified by cellulose were involved. According to the results of Scanning electron microscope (SEM) analysis, the foam gel was found to exhibit an interconnected pore network with uniform pore space. As suggested by Bet analysis, the macroporous structure was formed in the sample, and the pore size ranged from 0 to 170nm. The mentioned findings demonstrated that the foam gel material of this study refers to a potential environmental absorbent to improve soil and desert environments. It can act as a powerful alternative to conventional petroleum derived polymers.


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