scholarly journals Improving the efficiency of liquid fuel boiler plants

Author(s):  
V. G. Zlobin ◽  
L. O. Zverev

The issues of saving fuel and energy resources, as well as improving the equipment efficiency, are of great importancei n all sectors and especially in the energy sector, the main fuelconsuming industry. Improving of the boiler plants efficiency and is currently an urgent issue. Organizational and technical measures to improve technological processes are being developed at each station. The article discusses several ways to improve the boiler plants efficiency using liquid fuel. Industrial tests of the diesel nozzle cleaner in the boiler plant were carried out, which led to the following results: - received fuel consumption savings of 8.67%. At the same time, the amount of heat transferred to the LTC-4 network increased by 5.86%. - the specific indicator of fuel consumption (the ratio of diesel fuel consumption to the amount of heat transferred, kg / Gcal) decreased by 12.57%, and also at the same time as the efficiency of the boilers, the resource indicators of the boiler nozzles will increase, the time and the costs for the nozzles technical inspection will decrease.

2011 ◽  
Vol 31 (5) ◽  
pp. 916-922 ◽  
Author(s):  
Gustavo H. Nietiedt ◽  
José F. Schlosser ◽  
Alexandre Russini ◽  
Ulisses G. Frantz ◽  
Rodrigo L. Ribas

Diesel fuel is used widely in Brazil and worldwide. On the other hand, the growing environmental awareness leads to a greater demand for renewable energy resources. Thus, this study aimed to evaluate the use of different blends of soybean (Glycine max) methyl biodiesel and diesel in an ignition compression engine with direct injection fuel. The tests were performed on an electric eddy current dynamometer, using the blends B10, B50 and B100, with 10; 50 e 100% of biodiesel, respectively, in comparison to the commercial diesel B5, with 5% of biodiesel added to the fossil diesel. The engine performance was analyzed trough the tractor power take off (PTO) for each fuel, and the best results obtained for the power and the specific fuel consumption, respectively, were: B5 (44.62 kW; 234.87 g kW-1 h-1); B10 (44.73 kW; 233.78 g kW-1 h-1); B50 (44.11 kW; 250.40 g kW-1 h-1) e B100 (43.40 kW; 263.63 g kW-1 h-1). The best performance occurred with the use of B5 and B10 fuel, without significant differences between these blends. The B100 fuel showed significant differences compared to the other fuels.


Author(s):  
Petar Kazakov ◽  
Atanas Iliev ◽  
Emil Marinov

Over the decades, more attention has been paid to emissions from the means of transport and the use of different fuels and combustion fuels for the operation of internal combustion engines than on fuel consumption. This, in turn, enables research into products that are said to reduce fuel consumption. The report summarizes four studies of fuel-related innovation products. The studies covered by this report are conducted with diesel fuel and usually contain diesel fuel and three additives for it. Manufacturers of additives are based on already existing studies showing a 10-30% reduction in fuel consumption. Comparative experimental studies related to the use of commercially available diesel fuel with and without the use of additives have been performed in laboratory conditions. The studies were carried out on a stationary diesel engine СМД-17КН equipped with brake КИ1368В. Repeated results were recorded, but they did not confirm the significant positive effect of additives on specific fuel consumption. In some cases, the factors affecting errors in this type of research on the effectiveness of fuel additives for commercial purposes are considered. The reasons for the positive effects of such use of additives in certain engine operating modes are also clarified.


2020 ◽  
Vol 18 (12) ◽  
pp. 2391-2405
Author(s):  
A.K. Subaeva ◽  
G.S. Klychova ◽  
L.M. Mavlieva

Subject. This article discusses the issues related to the technological infrastructure of agriculture, improving the efficiency of energy resources, minimizing labor and material costs, and ensuring the continuity of the production process. Objectives. The article aims to study methods to improve the technological infrastructure of agricultural enterprises in the digital economy terms. Methods. For the study, we used the methods of comparison and classification. Results. The article describes patterns of development of technological processes in agriculture in the digital economy. Conclusions. The technical fitting-out of agriculture in the digital economy should be considered as a set of measures to prepare the industry for the production of high-quality products, which implies the use of digital technologies that minimize human participation in the production process.


Author(s):  
Nataliia Fialko ◽  
◽  
Viktor Prokopov ◽  
Nataliia Meranova ◽  
Nina Polozenko ◽  
...  

The paper presents the dynamics of changes in volumes of secondary energy resources (SER) in the energy sector of Ukraine by type of energy. The data on changes in the structure and volumes of secondary energy resources for the last period are presented.


Author(s):  
Nataliia Fialko ◽  
◽  
Viktor Prokopov ◽  
Julii Sherenkovskii ◽  
Artem Yevtushenko ◽  
...  

The features of the use of heat and combustible and heat secondary energy resources (SER) in the energy sector of Ukraine are considered. The data on the use levels of various types of combustible SER, as well as high-potential heat SER by types of utilization plants are presented.


2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Soni S. Wirawan dkk

Biodiesel is a viable substitute for petroleum-based diesel fuel. Its advantages are improved lubricity, higher cetane number and cleaner emission. Biodiesel and its blends with petroleum-based diesel fuel can be used in diesel engines without any signifi cant modifi cations to the engines. Data from the numerous research reports and test programs showed that as the percent of biodiesel in blends increases, emission of hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM) all decrease, but the amount of oxides of nitrogen (NOx) and fuel consumption is tend to increase. The most signifi cant hurdle for broader commercialization of biodiesel is its cost. In current fuel price policy in Indonesia (especially fuel for transportation), the higher percent of biodiesel in blend will increase the price of blends fuel. The objective of this study is to assess the optimum blends of biodiesel with petroleum-based diesel fuel from the technically and economically consideration. The study result recommends that 20% biodiesel blend with 80% petroleum-based diesel fuel (B20) is the optimum blend for unmodifi ed diesel engine uses.Keywords: biodiesel, emission, optimum, blend


Fuel ◽  
2018 ◽  
Vol 222 ◽  
pp. 718-732 ◽  
Author(s):  
Pierpaolo Napolitano ◽  
Chiara Guido ◽  
Carlo Beatrice ◽  
Leonardo Pellegrini

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