The methodology for knowledge base compression and robust diagnosis: Application to a steam boiler plant

1997 ◽  
Vol 12 (2) ◽  
pp. 263-274
Author(s):  
Gibaek Lee ◽  
Kyung Joo Mo ◽  
En Sup Yoon
Keyword(s):  
Knowledge Base ◽  
Steam Boiler ◽  
Boiler Plant

scholarly journals Analysis of CO2 concentration distribution inside and outside small boiler plants

2016 ◽  
Vol 23 (1) ◽  
pp. 49-60 ◽  
Author(s):  
Robert Cichowicz ◽  
Grzegorz Wielgosiński ◽  
Agata Targaszewska
Keyword(s):  
Working Conditions ◽  
Thermal Energy ◽  
Energy Demand ◽  
Carbon Dioxide Concentration ◽  
Co2 Concentration ◽  
Ambient Air ◽  
Hot Water ◽  
Steam Boiler ◽  
Boiler Plant ◽  
High Temperature Steam

Abstract Analysis of the distribution of CO2 concentrations was performed for a water-and-steam boiler plant located in a detached building supplying thermal energy to a hospital. The boiler plant was equipped with two low-temperature boilers and one high-temperature steam boiler. The maximum thermal energy demand of the hospital was 4280, 3500 kW of which came from the hot-water boilers and the remaining 780 kW from the steam boiler. Due to the operating system there were no permanent job positions in the boiler plant. Servicing consisted only in the supervision, periodic adjustment and maintenance of the equipment. These kinds of working conditions release the employer from the necessity to perform tests and measurements of working conditions in such a building. On the other hand, continuous measurements are made because of the installation safety and emissions of pollutants into the environment. The article presents results of the measurements and analysis of the distribution of CO2 concentrations inside and outside a small boiler plant, due to which it was found that the level of carbon dioxide concentration did not depend on the ambient air temperature. The resulting values are similar regardless of whether the measurements were taken in December 2012 or April 2013. However, there is an evident impact of seasons on the concentrations in the indoor air associated primarily with the demand for heat during the given period, the stay of people in the workplace and the number of working devices.

scholarly journals Exploitation of Empty Palm Fruit Bunch for the Generation of Electricity

2019 ◽  
pp. 1-12
Author(s):  
Pius Chukwukelue Onyechi ◽  
Chinenye Adaobi Igwegbe
Keyword(s):  
Power Plant ◽  
Good Alternative ◽  
Steam Boiler ◽  
Empty Fruit Bunch ◽  
Palm Fruit ◽  
Turbine Plant ◽  
Boiler Plant ◽  
Steam Turbine Plant ◽  
Edo State ◽  
Plant Boiler

Electricity is very important for the growth and economy of a country. Biomass wastes such as waste from oil palm plantation companies can be harnessed for this purpose since they are usually abundant in nature. The aim of this study is to evaluate the utilization of empty palm fruit bunch for the generation of electricity. The empty fruit bunch (EFB) was used in firing a steam turbine plant (boiler) for the generation of electricity. The power plant that was used in this research is owned by PRESCO Nigeria Limited located in Ikpoba-Okha local government area of Edo state. 1.7 MW of electricity was generated by burning empty fruit bunch (EFB) at a rate of 896 kg/h when the steam boiler was used. This value was compared with the traditional power plant fired using methane gas which produces 4.5MW. This value (1.7 MW) shows that EFB is a very good alternative for firing a boiler plant, power generation and elimination of wastes.

ANALYSIS OF THE WORK EFFICIENCY OF SANDED AND CARBON FILTERS IN THE TREATMENT SCHEME OF WASTEWATER OF THE PRODUCTION OF VEGETABLE OILS AND FATS

2019 ◽  
Author(s):  
Д.В. АЛТУХОВА ◽  
Т.Г. КОРОТКОВА
Keyword(s):  
Vegetable Oils ◽  
Suspended Solids ◽  
Ph Value ◽  
Local Treatment ◽  
Rapeseed Meal ◽  
Ammonium Nitrogen ◽  
Quantitative Composition ◽  
Steam Boiler ◽  
Boiler Plant ◽  
Treatment Facilities

Представлены результаты мониторинга эффективности работы локальных очистных сооружений ООО «Пищевые ингредиенты» (Краснодарский край), производящего специализированные жиры и осуществляющего прием жидких растительных масел, патоки, подсолнечного и рапсового шротов, за период январь–апрель 2018 г. Определен качественный и количественный состав загрязненных сточных вод в аварийной емкости предприятия: рН 6,325; азот аммонийный 12,358 мг/л; фосфаты 10,630 мг/л; содержание жира 2418 мг/л; содержание мыла 0,005%; взвешенные вещества 581,3 мг/л; хлориды 972,7 мг/л; железо общее 8,333 мг/л. Установлено, что в схеме локальных очистных сооружений ООО «Пищевые ингредиенты» предусмотрено прохождение сточной воды после ее биологической очистки через песчаный и угольный фильтры с последующим обеззараживанием на установке ультрафиолетового облучения и подача очищенной воды в парокотельный цех для дальнейшего ее использования в производстве. Мониторинг работы песчаного и угольного фильтров за указанный период показал эффективность их работы: в очищенной воде отсутствовали взвешенные вещества, концентрация азота аммонийного была меньше 0,1 мг/л, ХПК не превышало 30 мгО2/л, значение рН находилось в пределах 7, что ниже допустимых уровней для этих показателей. Results of monitoring of efficiency of work of local treatment facilities of LLC «Pishchevye ingredienty» (Krasnodar region) making specialized fats and performing reception of liquid vegetable oils, molasses, sunflower and rapeseed meal for the period January–April, 2018 are presented. The qualitative and quantitative composition of contaminated wastewater in the emergency capacity of the plant is defined: pH 6,325; ammonium nitrogen 12,358 mg/l; phosphates 10,630 mg/l; content of fat 2418 mg/l; content of soap 0,005%; suspended solids 581,3 mg/l; chlorides 972,7 mg/l; iron total 8,333 mg/l. It is established that in the scheme of local treatment facilities of LLC «Pishchevye ingredienty» the passage of wastewater after its biological treatment through sand and coal filters with subsequent disinfection at the installation of ultraviolet irradiation and supply of purified water to the steam boiler plant for its further use in production is provided. Monitoring of operation of sand and carbon filters for the specified period showed the effectiveness of their work: in purified water suspended solids were absent, the concentration of ammonium nitrogen was less than 0,1 mg/l, COD did not exceed 30 mg O2/l, the pH value was within 7, that below acceptable levels for these indicators.

scholarly journals Experimental Study of a Coil Type Steam Boiler Operated on an Oil Field in the Subarctic Continental Climate

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1004 ◽  
Author(s):  
Konstantin Osintsev ◽  
Sergei Aliukov ◽  
Sulpan Kuskarbekova
Keyword(s):  
Experimental Data ◽  
Operating Conditions ◽  
Oil Field ◽  
Steam Boiler ◽  
Boiler Plant ◽  
Northern Regions ◽  
Steam Boilers ◽  
The Russian Federation ◽  
Continental Climate ◽  
Ancillary Equipment

Transportable boiler plants are widespread in the northern regions of the Russian Federation and have a large and stable demand in various spheres of life. The equipment used and the schemes of existing boiler plants are outdated—they require replacement and modernization. Our proposed new installation includes a coil type steam boiler and ancillary equipment designed with the identified deficiencies in mind. The steam boiler coils are coaxial cylinders. The scope of the modernized transportable boiler plant is an oil field in the subarctic continental climate. The work is aimed at completing an experimental and theoretical study of the operation of a coil type steam boilers under real operating conditions. Experimental data on the operation of boiler plants are presented. The dependences of the fuel consumption of boiler plants on the temperature and pressure of the coolant are obtained. Statistical analysis is applied to the collected data. Conclusions are formulated and a promising direction is laid out for further research and improvement of coil type steam boilers. Equations are proposed for calculating the convective component of radiant-convective heat transfer in gas ducts, taking into account the design features of boiler units by introducing new correction factors. Comparison of the calculated and experimental data showed their satisfactory agreement.

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