scholarly journals ECONOMIC AND ENERGY EFFICIENCY OF BACTOPASLON APPLICATION IN THE TECHNOLOGY OF POTATO CULTIVATION

2013 ◽  
Vol 17 ◽  
pp. 159-169
Author(s):  
Yu. M. Khalep ◽  
S. F. Kozar ◽  
T. A. Yevtushenko

The paper describes the investigation results of economic and energy efficiency of microbial preparation Bactopaslon application in the technology of potato cultivation. The high efficiency of the studied biological product due to the advanced yield increase rates as compared to the increased costs was established.

2011 ◽  
Vol 13 ◽  
pp. 124-136
Author(s):  
Yu.N. Khalep ◽  
E.I. Volkogon

The results of economical and energy efficiency studies of application of the microbial preparation Microgumin in the cultivation technologies of spring barley are presented. The influence of main factors on the formation of the efficiency indices was identified by the means of deterministic factor analysis. The high efficiency of Microgumin application was ensured due to the priority growth rates of yield level as compared to the costs increase.


Author(s):  
V. A. Spirin ◽  
V. E. Nikol’skii ◽  
D. V. Vokhmintsev ◽  
A. A. Moiseev ◽  
P. G. Smirnov ◽  
...  

At steel production based on scrap metal utilization, the scrap heating before charging into a melting facility is an important way of energy efficiency increase and ecological parameters improving. In winter time scrap metal charging with ice inclusions into a metal melt can result in a considerable damage of equipment and even accidents. Therefore, scrap preliminary drying is necessary to provide industrial safety. It was shown, that in countries with warm and low-snow climate with no risk of scrap metal icing up during its transportation and storing in the open air, the basic task being solved at the scrap drying is an increase of energy efficiency of steelmaking. InRussiathe scrap metal drying first of all provides the safety of the process and next - energy saving. Existing technologies of scrap metal drying and heating considered, as well as advantages and drawbacks of technical solutions used at Russian steel plants. In winter time during scrap metal heating at conveyers (Consteel process) hot gases penetrate not effectively into its mass, the heat is not enough for evaporation of wetness in the metal charge. At scrap heating by the furnace gases, a problem of dioxines emissions elimination arises. Application of shaft heaters results in high efficiency of scrap heating. However, under conditions of Russian winter the upper scrap layers are not always heated higher 0 °С and after getting into a furnace bath the upper scrap layers cause periodical vapor explosions. The shaft heaters create optimal conditions for dioxines formation, which emit into atmosphere. It was shown, that accounting Russian economic and nature conditions, the metal charge drying and heating in modified charging buckets by the heat of burnt natural gas or other additional fuel is optimal. The proposed technical solution enables to burnt off organic impurities ecologically safely, to melt down ice, to evaporate the wetness in the scrap as well as to heat the charge as enough as the charging logistics enables it. The method was implemented at several Russian steel plants. Technical and economical indices of scrap metal drying in buckets under conditions of EAF-based shop, containing two furnaces ДСП-100, presented.


Author(s):  
T.S. Krylova T.S. ◽  
◽  
L.A. Dorozhkina L.A. ◽  
A.N. Dubrovin A.N.

The data for 2018-2019 on tests of the Kamelot herbicide for the protection of soybeans in the Amur Region are presented. The herbicide was applied before soybean germination at a rate of 4 l / ha. The biological efficiency of Camelot was 87-93%, which corresponded to the value of the standard (Frontier Optima). High efficiency of the herbicide was found out against common commeline, white mari, backyard buckwheat and chicken millet. The yield increase was equal to 6.1 c/ha.


Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3849
Author(s):  
Olesia Havryliuk ◽  
Vira Hovorukha ◽  
Oleksandr Savitsky ◽  
Volodymyr Trilis ◽  
Antonina Kalinichenko ◽  
...  

The aquatic plant Pistia stratiotes L. is environmentally hazardous and requires effective methods for its utilization. The harmfulness of these plants is determined by their excessive growth in water bodies and degradation of local aquatic ecosystems. Mechanical removal of these plants is widespread but requires fairly resource-intensive technology. However, these aquatic plants are polymer-containing substrates and have a great potential for conversion into bioenergy. The aim of the work was to determine the main patterns of Pistia stratiotes L. degradation via granular microbial preparation (GMP) to obtain biomethane gas while simultaneously detoxifying toxic copper compounds. The composition of the gas phase was determined via gas chromatography. The pH and redox potential parameters were determined potentiometrically, and Cu(II) concentration photocolorimetrically. Applying the preparation, high efficiency of biomethane fermentation of aquatic plants and Cu(II) detoxification were achieved. Biomethane yield reached 68.0 ± 11.1 L/kg VS of Pistia stratiotes L. biomass. The plants’ weight was decreased by 9 times. The Cu(II) was completely removed after 3 and 10 days of fermentation from initial concentrations of 100 ppm and 200 ppm, respectively. The result confirms the possibility of using the GMP to obtain biomethane from environmentally hazardous substrates and detoxify copper-contaminated fluids.


Author(s):  
Askin Erdem Gundogdu ◽  
Erkan Afacan

There has been great interest in wireless power transmission since 2007 when a novel approach was presented by a group of scientists at MIT. With this new technique, power transmission range is possible for a couple of meters with high efficiency; however, to be able to use this technique in our lives with high efficiency and long transfer range, small structured devices and new design techniques are strongly required. In this chapter, the investigation on supplying energy by sweeping was presented. The experimental results claim that energy could be supplied to multiple devices almost at the same time. If the range of chosen frequency increases, the number of devices could be increased as well, considering slight energy efficiency loss in the transfer system. The authors hope that the proposed technique gives inspiration to the designers and to the market.


2018 ◽  
Vol 10 (11) ◽  
pp. 4297 ◽  
Author(s):  
Hyunjoo Lee ◽  
Misuk Lee ◽  
Sesil Lim

Disclosing the energy performance information for buildings has been expected to become an important policy for controlling energy demand and reducing CO2 emissions, but its effectiveness remains controversial. This study investigates the effect of energy performance information on consumer residential choice by using a discrete choice experiment in South Korea. The estimation results confirmed that the energy efficiency level of the given housing has a significant effect on consumer residential choice when the related information is actually delivered. Combined with evidence from the simulation study, we suggest that obligating the owners to provide energy performance information to potential buyers/tenants would be necessary for enhancing the use of the information during the consumer decision-making process. Additionally, the simulation result implies that the effectiveness of the policy can be underestimated by the price premium related to energy efficiency. Therefore, we suggest that the government should control the price premium for high-efficiency buildings at the early stage so that the policy related to disclosing the energy performance can be on track.


Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6700
Author(s):  
Nuria Novas ◽  
Alfredo Alcayde ◽  
Isabel Robalo ◽  
Francisco Manzano-Agugliaro ◽  
Francisco G. Montoya

Energy efficiency and management is certainly one of the key drivers of human progress. Thus, the trends in the energy research are a topic of interest for the scientific community. The aim of this study is to highlight global research trends in this field through the analysis of a scientific journal indexed exclusively in the energy and fuels category. For this purpose, a journal has been selected that is in the center of the category considering its impact factor, which is only indexed in this category and of open access, Energies of the publisher MDPI. Therefore, a bibliometric analysis of all the contents of the journal between 2008 and 2020, 13,740 documents published, has been carried out. Analyzing the articles that are linked to each other by their citations, 14 clusters or research topics have been detected: smart grids; climate change–electric energy community; energy storage; bioenergy sources; prediction algorithms applied to power; optimization of the grid link for renewable energy; wind power; sustainability of power systems; hydrocarbon improvements; conversion of thermal/electrical energy; electric motor advancements; marine renewable energy; hydropower and energy storage; and preventive techniques in power transformers. The main keywords found were electric vehicle, renewable energy, microgrid, smart grid, and energy efficiency. In short, energy research remains necessary to meet the future challenge of sustainable energy with high efficiency and the exploration of new renewable resources, all for increasingly sustainable cities.


2014 ◽  
Vol 19 ◽  
pp. 53-60
Author(s):  
I. G. Chuchvaha ◽  
Yu. M. Khalep

The survey results of the economic and energy efficiency of the microbial preparation Diazobacterin use along with fertilizers in cultivation technology of winter rye are presented. It was established that combined application of Diazobacterin and fertilization in a dose N60K40 in winter rye cultivation on sod-podzolic soils to be the most cost and energy efficient.


2020 ◽  
pp. 61-63 ◽  
Author(s):  
K. D. Buzetti ◽  
M. V. Ivanov

Relevance. The work shows the need for processing waste from poultry farms into organic fertilizers. The main aspects of poultry waste processing are considered. The scheme for obtaining high-efficiency granular and liquid organic fertilizers from waste from poultry farms is described and shown. Expected results from the implementation of the developed technology are considered.Results. The technology of waste processing allows you to get both solid granular and liquid organic fertilizers. At the same time, the energy efficiency ofwasteprocessingisincreased, the cost of themainproductsofpoultryfarms is reduced, and the environmental risk of waste entering the environment is minimized.


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