scholarly journals Problems encountered when assessing the technical condition of some types of industrial structures on the example of coal bunkers for a power boiler

2019 ◽  
Vol 284 ◽  
pp. 09003
Author(s):  
Jan Kubica ◽  
Marta Kałuża
Keyword(s):  
Coal Mine ◽  
Storage Tank ◽  
Power Plants ◽  
Industrial Structure ◽  
Technical Condition ◽  
Industrial Facilities ◽  
Industrial Structures ◽  
Fine Coal ◽  
Power Boiler ◽  
Energy Plants

The assessment of the technical condition of the structure in industrial facilities is sometimes very difficult, even for experienced construction specialists. First, this applies to facilities in which there are quite specific cubature constructions, as objects located in the coal mine facility, or coal-fired CHP plants. In the case of energy plants, such a typical construction that causes the most problems when assessing the technical condition is coal or fine coal storage tank usually in the form of bunker batteries supplying power boilers. In practice, access to the interior of such bunkers is possible only when the power unit is put out of service (boiler extinguish) in order to repair, upgrade or expand it. In presented paper on the example of two coal bunkers (from a battery consisting of four such constructions) of one of the power plants located in southern Poland, the authors want to present and discuss some specific problems that occurred in the assessment and analysis of the technical condition of this type of specific industrial structure.

scholarly journals Problems concerning reconstruction of old postindustrial building of a closed coal mine and its adaptation to a new utility function

2018 ◽  
Vol 174 ◽  
pp. 03021 ◽  
Author(s):  
Jacek Hulimka ◽  
Jan Kubica ◽  
Marta Kałuża
Keyword(s):  
Utility Function ◽  
Coal Mine ◽  
Technical Condition ◽  
Building Structure ◽  
Waiting Room ◽  
Industrial Facilities ◽  
Utility Values ◽  
History Of ◽  
Observed Damage

The waiting room and bath building is one of the two preserved industrial facilities of the former Gliwice Mine. It was built in the first years of the 20thcentury and fulfilled its function till mine liquidation in 2000. It was overhauled and modernized in 2005-2008 and currently fulfills a new function. The paper presents a summarized history of the Gliwice Mine, a detailed description of the building structure, its technical condition before the overhaul and problems encountered during the adaptation works. It also briefly indicates the causes of the observed damage as well as describes the scope of the basic modernization works related to the new function of the building as an education and office facility. Moreover, it presents the manner of conducting the overhaul and modernization works leading to restoration of the full utility values in the new function.

scholarly journals A concept to use energy of air flows of technogenic area of mining enterprises

2018 ◽  
Vol 60 ◽  
pp. 00004 ◽  
Author(s):  
Edgar Cabana ◽  
Volodymyr Falshtynskyi ◽  
Pavlo Saik ◽  
Vasyl Lozynskyi ◽  
Roman Dychkovskyi
Keyword(s):  
Power Plants ◽  
Energy Sources ◽  
Power Demand ◽  
Industrial Facilities ◽  
Industrial Structures ◽  
Mine Dumps ◽  
Mining Enterprise ◽  
Driven System ◽  
Air Flows ◽  
Process Solutions

Topical issues concerning the possibilities of effective energy generation on the basis of Ukrainian mining enterprises have been highlighted. Attention is drawn to one of the most challenging tendencies of nontraditional energy sources development in the process of wind-driven powerplant use. The plants consume energy of technogenic air flows. Operation schemes and engineering solutions as for the possibilities to involve nontraditional sources of energy resulting from operation of technogenic objects and industrial structures of enterprises (i.e. stopes, mine dumps, industrial facilities etc.) in power balance of a mining enterprise have been demonstrated. Energy efficiency of the wind-driven powerplants in the context of different operation schemes aimed at utilization of energy of technogenic air flows has been analyzed. Output of a wind-driven system as a component of technological segment of a mining enterprise making it possible to meet 20 to 44% of its power demand has been determined. The objective of the paper is to substantiate process solutions as well as technical and engineering ones as for the obtaining nontraditional energy sources basing upon introduction of wind-driven power plants.

Lighting of Engineering Structures and Industrial Facilities New Aspects of the Topic

2018 ◽  
pp. 29-36
Author(s):  
Nikolai I. Shepetkov ◽  
George N. Cherkasov ◽  
Vladimir A. Novikov
Keyword(s):  
Fundamental Problem ◽  
Lighting Design ◽  
Aesthetic Value ◽  
Engineering Structures ◽  
Industrial Facilities ◽  
Artificial Lighting ◽  
Industrial Structures ◽  
Design Solutions ◽  
Architectural Lighting ◽  
The Aesthetic

This paper considers the fundamental problem of artificial lighting in various types and scales of industrial facilities, focusing on exterior lighting design solutions. There is a lack of interest from investors, customers and society in high­quality lighting design for industrial facilities in Russia, which in many cities are very imaginative structures, practically unused in the evening. Architectural lighting of various types of installations is illustrated with photographs. The purpose of the article is to draw attention to the aesthetic value of industrial structures, provided not only by the architectural, but also by a welldesigned lighting solution.

The Foundations of Civil Liability for Industrial Pollution

2020 ◽  
Vol 11 (3) ◽  
pp. 208-246
Author(s):  
David Messner
Keyword(s):  
Industrial Pollution ◽  
Power Plants ◽  
Strict Liability ◽  
Civil Liability ◽  
Private Law ◽  
Industrial Facilities

Abstract In European private law, operators of industrial facilities, power plants and other sites using special substances or procedures are made responsible for harm caused by pollution even where it is doubtful that such harmdoing is unreasonable or could have been foreseen. Analysing both fault-based and strict liability, the author discusses legal bases for this liability and its justification in European jurisdictions.

Annual Yield Analysis of Solar Tower Power Plants With GREENIUS

2011 ◽  
Vol 133 (3) ◽  
Author(s):  
Jürgen Dersch ◽  
Peter Schwarzbözl ◽  
Timo Richert
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Software Tool ◽  
Parabolic Trough ◽  
Concentrating Solar Power ◽  
Solar Field ◽  
Performance Calculation ◽  
Design Power ◽  
Energy Plants ◽  
Renewable Energy Plants

An existing software tool for annual performance calculation of concentrating solar power and other renewable energy plants has been extended to enable the simulation of solar tower power plants. The methodology used is shown and a demonstrative example of a 50 MWe tower plant in southern Spain is given. The influence of design power and latitude on solar field layout is discussed. Furthermore, a comparison of the tower plant with a 50 MWe parabolic trough and a Linear Fresnel plant at the same site is given.

Designing CO2 Transmission Pipelines Without Crack Arrestors

2010 ◽  
Author(s):  
Graeme G. King ◽  
Satish Kumar
Keyword(s):  
Wall Thickness ◽  
Carbon Capture ◽  
Power Plants ◽  
Oil And Gas ◽  
Cost Optimization ◽  
Operating Conditions ◽  
Operating Pressure ◽  
Design Work ◽  
Industrial Facilities ◽  
Pipeline Network

Masdar is developing several carbon capture projects from power plants, smelters, steel works, industrial facilities and oil and gas processing plants in Abu Dhabi in a phased series of projects. Captured CO2 will be transported in a new national CO2 pipeline network with a nominal capacity of 20×106 T/y to oil reservoirs where it will be injected for reservoir management and sequestration. Design of the pipeline network considered three primary factors in the selection of wall thickness and toughness, (a) steady and transient operating conditions, (b) prevention of longitudinal ductile fractures and (c) optimization of total project owning and operating costs. The paper explains how the three factors affect wall thickness and toughness. It sets out code requirements that must be satisfied when choosing wall thickness and gives details of how to calculate toughness to prevent propagation of long ductile fracture in CO2 pipelines. It then uses cost optimization to resolve contention between the different requirements and arrive at a safe and economical pipeline design. The design work selected a design pressure of 24.5 MPa, well above the critical point for CO2 and much higher than is normally seen in conventional oil and gas pipelines. Despite its high operating pressure, the proposed network will be one of the safest pipeline systems in the world today.

Analysis of Foreign Experience in Using Flue Gas Purification Systems at Waste-to-Energy Plants

Vestnik MEI ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 11-19
Author(s):  
Anton N. Efremov ◽  
◽  
Aleksey A. Dudolin ◽  
Keyword(s):  
Flue Gas ◽  
Power Plants ◽  
Waste To Energy ◽  
Gas Purification ◽  
Acid Gases ◽  
Purification System ◽  
Flue Gas Purification ◽  
Property Assessment ◽  
Application Fields ◽  
Energy Plants

The existing method for selecting the structure of a power plant for thermally recycling municipal solid waste (MSW) in the Russian Federation does not address the matter of selecting all components of an energy complex operating on MSW, but places focus on determining the best accessible waste thermal neutralization technology. This generates the need to search for new methods and to select criteria of choosing the structure for each particular project. A comparative analysis of various structural schemes of waste-to-energy plants widely used outside of Russia will make it possible to reveal their main advantages and drawbacks, and to determine their application fields. The article describes the statistical indicators characterizing the operation of the flue gas purification system from acid gases, which can be applied in performing a feasibility study, intellectual property assessment, and in carrying out front-end engineering. For waste-to-energy plants constructed in an urban environment and aimed to operate with keeping to a minimum the gross emissions of acid gases into the atmospheric air, the use of a wet reactor system is recommended, which will ensure low emissions of HF, HCl, and SOx. The system with a wet reactor will make it possible to reduce gross emissions of harmful substances during the operation of large capacity waste-to-energy power plants and will be a justified choice in such case. In constructing medium capacity waste-to-energy plants (with a throughput of up to 350 000 t of MSW per annum), semi-dry and dry reactors can be used; for such plants, the technology involving the use of a semi-dry reactor is the most preferred one.

scholarly journals Analyzing and Detecting Drifts in a Flowmeter by Discrete Fourier Transform

2021 ◽  
Vol 8 (4) ◽  
pp. 519-526
Author(s):  
Mohammad J. Ben Salamah ◽  
Mehmet Savsar
Keyword(s):  
Fourier Transform ◽  
Discrete Fourier Transform ◽  
Power Plants ◽  
Cooling Water ◽  
Flow Data ◽  
Detection Scheme ◽  
Industrial Facilities ◽  
Seasonal Flow ◽  
Maintenance Technicians ◽  
Computer Based

Large flowmeters are used in many industrial facilities, including power plants, cooling-water stations for refineries, and petrochemical plants. These flowmeters are employed for various purposes, including billing. Just like all machines, flowmeters are subject to failure. Drift is a particular type of failure in which the flowmeter produces an error in measurement that would incrementally increase with time. Maintenance technicians calibrate and fix all measuring equipment, including flowmeters. Nevertheless, downsizing policies and budget cuts in most contemporary industrial facilities have made these technicians overwhelmed with work. A mathematical and computer-based drift-detection scheme is developed to reduce the burden of the maintenance staff. The detection scheme only uses the flowmeter's flow data and the discrete Fourier transform (DFT). The detection scheme was applied over the flow data from an actual flowmeter that drifted during its operation. DFT application over the data produced by the flowmeter led to expected results and other unexpected results. This paper discusses both results and suggests areas for further study. Practically speaking, the scheme would facilitate the early detection of drifts in flowmeters having seasonal flow regardless of type or manufacturer.

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