Relevant bibliographies by topics / Hot water boiler

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Hot water boiler'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 May 2022

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Journal articles on the topic "Hot water boiler"

1

Orumbayev, Rakhimzhan, Andrey Kibarin, Arman Kassimov, Tatyana Khodanova, and Maxim Korobkov. "Comprehensive technologies for increase of reliability and energy efficiency of medium capacity PTVM and KVGM hot-water boilers." MATEC Web of Conferences 260 (2019): 03003. http://dx.doi.org/10.1051/matecconf/201926003003.

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This article is dedicated to the problems of reliability, long-term thermal capacity and operational efficiency rate of PTVM and KGVM hot-water boilers. Based on the analysis of statistic data, tests, and certain works on increase of efficiency and reliability of PTVM-100 tower hot-water boilers, which were performed in Kazakhstan, it may be said that the reconstruction of PTVM-100 boilers accomplished on CHP was mainly aimed at the increase of reliability while saving the operational efficiency of boilers almost without changes. If the boiler is operating on fuel oil and without periodical washes, then it is possible to achieve consistent operation only under 75% of the nominal operational load. Structural changes of the PTVM-100 boiler unit offered by authors, along with the increase of operational reliability on fuel oil and it’s thermal capacity, allow increasing boiler’s efficiency rate up to 91-92% if it is operated under nominal load and using fuel oil. Structure the new KV-GM 55 hot-water boiler with horizontal design includes the two-row bi-radiated screen wrapping around the furnace and the new arrangement of convective packs, which are now located next to each other, allowed to increase heating characteristics of the boiler significantly due to the intensification of heat exchange and decrease of temperature of gases released from behind of the boiler unit, as well as to increase boiler’s efficiency rate up to 92,5% under nominal load.
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Zivkovic, Dragoljub, Dragan Milcic, Milan Banic, and Pedja Milosavljevic. "Thermomechanical finite element analysis of hot water boiler structure." Thermal Science 16, suppl. 2 (2012): 387–98. http://dx.doi.org/10.2298/tsci120503177z.

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The paper presents an application of the Finite Elements Method for stress and strain analysis of the hot water boiler structure. The aim of the research was to investigate the influence of the boiler scale on the thermal stresses and strains of the structure of hot water boilers. Results show that maximum thermal stresses appear in the zone of the pipe carrying wall of the first reversing chamber. This indicates that the most critical part of the boiler are weld spots of the smoke pipes and pipe carrying plate, which in the case of significant scale deposits can lead to cracks in the welds and water leakage from the boiler. The nonlinear effects were taken into account by defining the bilinear isotropic hardening model for all boiler elements. Temperature dependency was defined for all relevant material properties, i. e. isotropic coefficient of thermal expansion, Young?s modulus, and isotropic thermal conductivity. The verification of the FEA model was performed by comparing the measured deformations of the hot water boiler with the simulation results. As a reference object, a Viessmann - Vitomax 200 HW boiler was used, with the installed power of 18.2 MW. CAD modeling was done within the Autodesk Inventor, and stress and strain analysis was performed in the ANSYS Software.
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Qi, Guo Li, Jian Guan, Xue Min Liu, Zhong Wei Wang, Song Song Zhang, Yong Qiang Chang, and Peng Li. "Life Cycle Assessment on Layer-Combustion Hot-Water Boiler." Applied Mechanics and Materials 873 (November 2017): 285–91. http://dx.doi.org/10.4028/www.scientific.net/amm.873.285.

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Resource consumption, energy consumption, environmental impact and costs of layer-combustion boiler were assessed by using life cycle assessment (LCA). The costs during construction stage, resource and energy consumption during operation stage of layer-combustion hot-water boiler were focused on. Life cycle inventory was established. The results show that: throughout the boiler life cycle, the largest resource consumption indicator is that of coal with value of 93%, followed by natural gas and limestone. For the internal costs, although operation costs are obviously higher than construction costs, the construction costs still account for more than 30%, which is related to the relatively short servicetime of layer-combustion heating boilers. For the external costs, global warming accounts for the highest proportion.
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Huang, Hui Lan, and Gang Li. "Analysis of the Performance for a Group-Annulus Type Oil-Fired Boiler." Advanced Materials Research 97-101 (March 2010): 2921–24. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.2921.

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To overcome the shortcomings of the traditional hot-water boilers, a oil-fired hot water boilers is improved design for a group-annulus structure. A finished product boiler is thermodynamic analyzed with the tested heat generation amount equivalent to 350 kW. The results indicate that the unique heat exchange structure of group-annulus type hot-water boilers can reduce thermal stresses and intensify convection heat exchange. The radiation heat-exchange space is 2 times more than that of the shell-tube boiler, and surfaces inside the furnace are comparatively large. Compared with shell-tube type boilers, the group-annulus type boilers is made a distinction with small volume and heat-exchange surface area, low metal consumption and high ratio of performance to cost under the same total heat-exchange quantity.
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Todorovic, Milena, Dragoljub Zivkovic, Marko Mancic, and Gradimir Ilic. "Application of energy and exergy analysis to increase efficiency of a hot water gas fired boiler." Chemical Industry and Chemical Engineering Quarterly 20, no. 4 (2014): 511–21. http://dx.doi.org/10.2298/ciceq130716033t.

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In engineering practice exergy can be used for technical and economic optimization of energy conversion processes. The problem of increasing energy consumption suggests that heating plants, i.e. hot water boilers, as energy suppliers for household heating should be subjected to exergy and energy analysis. Heating plants are typically designed to meet energy demands, without the distinguished difference between quality and quantity of the produced heat. In this paper, the energy and exergy analysis of a gas fired hot water boiler is conducted. Energy analysis gives only quantitative results, while exergy analysis provides an insight into the actually available useful energy with respect to the system environment. In this paper, a hot water boiler was decomposed into control volumes with respect to its functional components. Energy and exergy of the created physical model of the hot water boiler is performed and destruction of exergy and energy loss in each of the components is calculated. The paper describes the current state of energy and exergy efficiency of the hot water boiler. The obtained results are analyzed and used to investigate possibilities for improvement of availability and reliability of the boiler. A comparison between the actual and the proposed more reliable solution is made.
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Goričanec, Darko, Igor Ivanovski, Jurij Krope, and Danijela Urbancl. "The Exploitation of Low-Temperature Hot Water Boiler Sources with High-Temperature Heat Pump Integration." Energies 13, no. 23 (November 30, 2020): 6311. http://dx.doi.org/10.3390/en13236311.

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The article presents an original and innovative technical solution for the exploitation of low-temperature excess heat from hot water boilers that use gas or liquid fuel for the needs of high-temperature heating in buildings or in industry. The primary fuel efficiency used for hot water boilers can be significantly increased by utilizing the excess low-temperature heat of flue gases that are discharged into the environment and thus also reduce CO2 emissions. Hot water systems usually operate at higher temperatures of the heating water, which is transported to the heat consumer via supply pipe, and the cooled heating water is returned to the hot water boiler via the return pipe. For the excess low-temperature heat exploitation of the flue gases from hot water boiler, it is necessary to install a condenser in the flue gas discharge pipe, where condensation of water vapour present in the flue gas heats water or a mixture of water and glycol. The heating water, which is cooled and returned from the heat consumer via the return pipe, is led to the condenser of the high-temperature heat pump, where it is preheated and then led to the hot water boiler, where it is heated to the final temperature. A computer simulation with the Aspen plus software package for the series or parallel connection of high-temperature heat pump to a hot water heating system and the economic analysis of the excess heat exploitation from the flue gases are also performed.
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Aguilar Vizcarra, Duilio, Doris Esenarro, and Ciro Rodriguez. "Three Steps Mixed (Fire Tube–Water Tube) Vertical Boiler to Optimize Thermal Performance." Fluids 6, no. 3 (February 25, 2021): 93. http://dx.doi.org/10.3390/fluids6030093.

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The research aims to design and construct a new mixed vertical boiler (fire tube – water tube) with three gas passes. The strength of this technological innovation is in the best use of the thermic transmission receiving fluid (hot water, steam, thermal oil), this due to its multipurpose function of three steps using alternative fuels (Diesel, Liquid Petroleum Gas LPG, natural gas), by improving the thermal efficiency of the boiler its temperature is reduced with gases at low temperatures, which in turn also reduce environmental pollution. The methodology focuses on calculating the transfer area with the calculation method that will allow dimensioning the boiler, considering the calculation of losses and the fluid speed, with two defined procedures, the first for fire tube and water tube boilers. And another alternative. The results obtained allowed optimizing the thermal efficiency level, achieving very significant thermal efficiency results: With LPG 92.4% for hot water and 92.42% to generate steam in the same way with natural gas 90.25% for hot water and 90.24% to generate steam as well with Diesel 2; 89.21% for hot water and 89.31% to generate steam.
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Zeinda, Eliza Marceliana, and Sho’im Hidayat. "RISK ASSESSMENT KECELAKAAN KERJA PADA PENGOPERASIAN BOILER DI PT. INDONESIA POWER UNIT PEMBANGKITAN SEMARANG." Indonesian Journal of Occupational Safety and Health 5, no. 2 (May 5, 2017): 183. http://dx.doi.org/10.20473/ijosh.v5i2.2016.183-191.

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Boiler is a tool produced steam. The operation of boiler produce hazard that can cause accidents in labor. The purpose of this research is to risk assessment for accidents work in the operation of boilers in PT. Indonesia Power Unit Pembangkitan Semarang. This research is observational. The object of this research is boiler. The subject of this research is coordinator and operator boiler. The primary data was obtained from observation and interview, while secondary data from the corporate documents. The result showed that boilers in PT. Indonesia Power Unit Pembangkitan Semarang were 3 unit of water tube using fuel MFO and HSD. The identification hazard obtained 12 findings hazard on 9 areas the operation boiler PT. Indonesia Power unit Pembangkitan Semarang. The hazard in the area of boiler are noise, hot weather, fire sparks, hit, pinched hand, discover water vapor, high pressure, electricity, contact with a steam pipe, amount of oil, exposed NaOH liquid, and slip and fall down from the height. On controlling value, there were 6 hazards that classified as in very good control, 3 hazards were classified as partly implemented, and 3 hazards were classified as implemented. The residual risk was obtained 5 category risk with no risk and 7 risk categories low. Conclusion that can be drawn are hazard boiler in PT. Indonesia Power Unit Pembangkitan Semarang have high risk of are hazard discover water vapor and the high pressure. The company suggested to perform maintenance and reduce the risk to a low.Keywords: risk assessment, work accidents, boiler
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Rajic, Milena, Dragoljub Zivkovic, Milan Banic, Marko Mancic, Tasko Maneski, Milos Milosevic, and Nenad Mitrovic. "Experimental and numerical stress and strain analysis of the boiler reversing chamber tube plate." Thermal Science, no. 00 (2021): 207. http://dx.doi.org/10.2298/tsci210313207r.

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Boilers are one of the most used units for both heat generation plants and industry systems. Their operation is subjected to different working loads and maintenance requirements. Exploitation experience points out critical boiler zones where failures and break downs typically occur. This paper analyzes critical zones in hot water fire-tube boiler. Experimental procedure was performed on the model of this type of boilers and its critical element. The tube plate of hot water boiler was identified as the most critical one. Experimental analysis and numerical model verification were performed using Aramis system based on 3D Digital Image Correlation method. Numerical analysis was done in Ansys Software Package and verification of results was done based on measurements obtained by strain gauges and local measurements performed by the Aramis system. Stress-strain analysis indicates the critical zones of boiler tube plate. The character of change parameters such as strain and stress occurring in the critical zones can be verified both by experimental and numerical data. The paper presents a novel approach in experimental and numerical analyses that can be conducted in similar units and used for existing unit optimization, as well as for new product testing on different loads and provide opportunity for further development and improvement for practical industrial application.
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Fuller, Jack, and Yang Guo. "Update and Analysis of Current Boiler Operations Used for the Generation of Steam Heat and Electricity." Energy and Environment Research 7, no. 1 (May 5, 2017): 23. http://dx.doi.org/10.5539/eer.v7n1p23.

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According to the U.S, Environmental Protection Agency (EPA), the number of boilers in the U.S. devoted to the production of steam, electricity, and heat is approximately 1.5 million. This study analyzes boilers burning natural gas, coal, wood, oil, or other fuels to recover thermal energy in the form of steam or hot water to produce electricity or heat. The focus of this research paper will be to assess the compliance status of the boilers which were in the original EPA major source Boiler MACT group to provide insight into the current operating status of these boiler units.
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Dissertations / Theses on the topic "Hot water boiler"

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Ladomérská, Jana. "Vytápění objektu zdroji na různé druhy paliv." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227584.

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In my final thesis I am processing a proposal for heating and preparing hot water for a restaurant with accommodation. This is a three-storey brick house. It is situated on the territory of the Ústí region. The aim of my work is to propose and to assess the appropriate heat source for this object. In the object I chose heating radiators. The proposal is processed in two variants. In the first variant, I suggest a cascade of condensing boilers using as a source of heat. In the second variant, I suggest a cascade of electrical boilers. Hot water will be prepared in reservoir of warm water. The source of hot water will be the same as the source for heating.
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Mik, Martin. "Plynofikace horkovodního kotle." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232167.

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This thesis deals with the fuel change for hot water boilers with wattage of 116.3 MW. At first a stoichiometric calculation is drawn. Calculation of pressure loss in pipeline follows. Consequential part elaborates on calculation of parallel connected heating surfaces following with a draft of regenerative air heater Ljungtröm. Conclusively, a calculation is carried out to verify the functionality of the serial connection of the heating surfaces.
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Křikava, Michal. "Vytápění funkcionalistické vily." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227593.

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This master´s thesis focuses on a design of a heating system in the functionalist villa Stiassni. The building is located in Brno and was used as a government villa. The objec-tive of this work is to select the appropriate type of heating system out of three differ-ent heat sources – an automatic pellet boiler, a gas boiler and an oil boiler. The theo-retical part is focused on the history of the villa Stiassnia, functionalism itself and other functionalist monuments. In the project part, the design of a heating system using the chosen type of heat source, which is a pellet boiler, is described.
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Spratková, Nikola. "Zdroje tepla pro průmyslové objekty." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265524.

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The thesis is focused on the design of the new heat source of the existing building. The first part deals with the heat sources and fuels used in the Czech Republic. The second part includes design of three variants of heat sources: gas boilers, cogeneration unit with the electric boilers and cogeneration unit with gas boilers. The individual variations are also evaluated in terms of user comfort, space requirements or economy of operation. The third part includes measurement and evaluation of internal environment of the dining hall.
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Dittrichová, Zuzana. "Návrh vytápění budovy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240362.

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The aim of this diploma thesis is to find a solution of heating system, a hot water preparation and a subsequent design of the heat source for the apartment building. The project consists of a calculation of heat losses, a design of radiators, a dimensioning of pipes and a design of two options of the heat source for heating and hot water preparation. The first option of the heat source I chose a pellet boiler and the second option is an electric boiler with solar collectors for the preparation of hot water. The introductory part deals with analysis of this object and emission limits of heat source using different fuels.
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Jurka, Vít. "Návrh vytápění z pohledu primární energie." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226837.

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This master´s thesis proposal addresses the heating from the perspective of primary energy in the object. The building is located in Brno and is used as a villa with a pool hall. The object of this work is the selection of appropriate variants of three heat sources (gas boiler, pellet and electric) in terms of primary energy. The project is design of the heating system chosen mode of heat, which is a pellet boiler. The theoretical part is focused on the pellets and their history, classification, properties, production, storage and transport.
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Lampa, Jan. "Vytápění historického objektu alternativními palivy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226840.

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The introduction of theoretical part deals with issue of fuel. There are basic kinds of fuels, their properties and calorific values. In next part a summary of types of boilers depending on the kind of fuel is described. A process of burning in each type is discussed. Then the basic issue of heat transmission, heat losses and design of individual elements of central heating system is described. In the second part there are two studies compared to each other. In the first one an automatic pellet boiler is used as a source of energy and in the second one it’s a heat pump, type air-water. At the end both of the variants are reviewed and the better option is chosen. In the last part the better option is designed, into detailed design documentation. Important design values for using the heating system and hot water service are calculated.
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Svoboda, Marek. "Horkovodní roštový kotel." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401493.

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This thesis deals with design of hot water grate boiler, where the output is water with parameters 130 °C and pressure 16 bar. In the content of the whole thesis is gradually introduced a stoichiometric calculations, which is based on the specified fuel – wood chips. This is followed by the design of the individual heating surfaces according to the thermal calculations given in the thesis. Finally, the calculation is extended by hydraulic and aerodynamic losses. Dimensional design, as a basic scheme, is shown at thesis. More detailed drawing documentation is attached to this thesis.
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Kubiš, David. "Zvýšení ročního využití parního práškového kotle K5 ve ŽĎAS, a. s." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318828.

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This mastes´s thesis deals with higher usage of boiler K5 in CHP plant ŽĎAS, a.s. in temporary season, when due to reduced consumption is overheating hot water return branch and there is need to change to another boiler. Main goal of thesis is reduce changes betwen boiler K5 and boiler K3 and increase usage of boiler K5 in temporary season by ekonomic profitablbe technical solution. At the beginning of thesis is described CHP plant ŽĎAS, a.s. and its equipment. Next are four methods of calculation increase year´s usage of boiler K5. And these are cooling hot water return branch using heat exchanger, condensation of part steam from back pressure, reduce minimal power of boiler K5 and usage with small condensing turbine. Thesis is finished with comparison of mentioned methods and experimental reduce of minimal power boiler K5.
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Konečný, Ladislav. "Vytápění polyfunkčního objektu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227620.

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This diploma thesis proposes the heating system and ventilation in mixed-use building. The building is located in Uherské Hradiště. The object of this work is the selection of appropriate variants of two heat sources (gas boilers and solid fuel boiler). The project is focus on design of the heating system chosen mode of heating, which are gas boilers and the concept of forced ventilation. The theoretical part is focused on the regulation.
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Books on the topic "Hot water boiler"

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Kuznecov, Vyacheslav, and Oleg Bryuhanov. Gasified boiler units. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1003548.

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The textbook gives the basic concepts of gasified heat generating (boiler) installations and the terminology used in boiler technology, the principle of operation and device of gasified heat generating (boiler) installations. The types and device of heat generators (boilers) of their furnace devices are considered; types and device of gas-burning devices, the number and places of their installation in furnace devices; auxiliary equipment-devices for air supply and removal of combustion products, devices for water treatment, steam supply and circulation of the coolant of hot water boilers; device for thermal control and automatic regulation of the boiler installation. The issues of operation and efficiency of gasified heat generating (boiler) installations and their gas supply systems; requirements for conducting gas-hazardous and emergency recovery operations of gas supply systems are considered. Meets the requirements of the federal state educational standards of secondary vocational education of the latest generation. For students of secondary vocational education in the specialty 08.02.08 "Installation and operation of equipment and gas supply systems".
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Kweller, Esher. Laboratory tests of a gas fueled modulating type hot water boiler. Gaithersburg, MD: U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Kweller, Esher. Laboratory tests of a gas fueled modulating type hot water boiler. Gaithersburg, MD: U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Kalmbach, Steve. Piping for high-pressure boilers: The installation and inspection of high-pressure boiler piping for code compliance with the ASME and National Board Code Requirements. Tuscan, Ariz: Wheatmark, 2013.

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Langley, Chris. Steam and hot water primer. Clifton Park, N.Y: Delmar Cengage Learning, 2010.

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Classic hydronics: How to get the most from those older hot-water heating systems. Bethpage, NY: HeatingHelp.com, 2011.

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Division, Arkansas Boiler Inspection. Rules and regulations governing the inspection, installation, and operation of steam boilers, hot water heating and supply boilers, and unfired pressure vessels, including anhydrous ammonia containers and equipment. Little Rock, Ark: Boiler Inspection Division, Dept. of Labor, 1985.

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Schumann, F. A manual of heating and ventilation, in their practical application, for the use of engineers and architects: Embracing a series of tables and formulas for dimensions of heating flow and return pipes, for steam and hot water boilers, flues, etc., etc. New York: Van Nostrand, 1988.

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Performance of a commercial hot water boiler. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1998.

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Automatically controlled steam and hot water boilers. [London]: HMSO, 1989.

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Book chapters on the topic "Hot water boiler"

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Larina, O. M., V. A. Lavrenov, and V. M. Zaitchenko. "The Partial Replacement of Diesel Fuel in Hot Water Boiler with Syngas Obtained by Thermal Conversion of Wood Waste." In Proceedings of the Scientific-Practical Conference "Research and Development - 2016", 165–70. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62870-7_18.

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Kumpulainen, Pekka, Timo Korpela, Yrjö Majanne, and Anna Häyrinen. "Modelling of NOx Emissions in Natural Gas Fired Hot Water Boilers." In Engineering Applications of Neural Networks, 100–108. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23983-5_10.

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Karellas, Sotirios, Panagiotis Vourliotis, Platon Pallis, Ioannis-Alexandros Sofras, and Emmanuel Kakaras. "Determination of Energy Efficiency of Hot Water Boilers and Calculation of Measurement Uncertainties." In The Art of Measuring in the Thermal Sciences, 189–214. CRC Press, 2020. http://dx.doi.org/10.1201/9780429201622-10.

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Dasgupta, Subrata. "Getting To Know Parallelism." In The Second Age of Computer Science. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190843861.003.0008.

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Every morning the first thing that X does is make tea for herself. She first turns on the stove and then while the stove ring is heating up, she pours water from the faucet into the kettle. She then places the kettle on the stove ring, now nicely hot, and while the water is being heated she puts tea bags into the teapot; she then pours milk from the milk carton into a milk jug and then puts the milk jug into the microwave oven. After the water starts to boil she pours water into teapot. And while the tea “gathers strength” in the teapot, she presses the time button on the microwave to start warming the milk. After the milk is warmed she first pours tea from the teapot into a teacup and then adds milk from the warmed milk jug to the tea in the cup. This tiny, humdrum, comforting, domestic scenario X enacts every morning has many (but not all) of the ingredients of a situation that involves the scope and limits of parallel processing. More precisely, the art of making tea as practiced by X entails a blend of both sequential and parallel events. We note that certain events can take place in parallel (or concurrently) because they do not interfere with one another; for example, the heating of the stove and the pouring of water into the kettle. But other events must be sequentially ordered either because they interfere with one another or because one event must complete before the other can begin. The kettle can be placed on the stove ring only after it has been filled with water; water can be poured into the teapot only after the water has boiled. But notice also that there is some flexibility in the ordering of X’s actions. She can defer turning on the stove until after the kettle is placed on the stove ring; she can alter the ordering of pouring water into the teapot and placing teabags into the pot; she could defer warming the milk in the microwave until the tea has brewed.
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North, Susan. "Washing Linens." In Sweet and Clean?, 208–29. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198856139.003.0009.

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Laundry was the process by which the hygienic function of linen—as required by propriety and medicine—was regularly renewed. Chapter 9 surveys the process of washing linens (washing, bucking, drying, starching, ironing) and the tools and resources it required (water, boilers, soap, irons, clothes lines, etc). Inventories reveal which tools and materials for laundry early modern English people owned and in what spaces this work was done. Household accounts document the necessary consumables (soap and starch), how frequently and in what quantities these were purchased, and what these patterns tell us about laundry.
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"HEATING AND REFRIGERATION Water heating; Space heating; Thermostatic temperature control; Electric cookers; High frequency heating; Electric steam boilers; Electric hot water boilers; Lamp ovens for industry; Refrigeration and air conditioning; Air conditioning and ventilation." In Newnes Electrical Pocket Book, 375–406. Routledge, 2013. http://dx.doi.org/10.4324/9780080497433-21.

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Fawcett, W. Ronald. "Non-Equilibrium Phenomena in Liquids and Solutions." In Liquids, Solutions, and Interfaces. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195094329.003.0010.

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The topics considered up to this point have involved liquids and solutions at equilibrium. Attention is now turned to systems which are not at equilibrium, and the processes which occur spontaneously in such systems. The physical phenomena involved can be quite complex, so that the task faced in early experiments was to separate the various processes and understand the physical properties of the system which govern them. Consider what happens when a beaker of pure isothermal water is placed on a hot plate. The water near the bottom rises in temperature and a temperature gradient is set up. As a result heat flows from the bottom of the beaker, producing a gradual increase in temperature in the water at a given height above the bottom. In addition, the temperature varies with distance, being highest at the bottom and lowest at the top. Eventually, the temperature of the water in the beaker is uniform and equal to that of the hot plate, assuming that the water does not boil. However, the flow of heat is not the only process resulting from the heat source. The density of the hot water is less than that of the cold water, so that a convection process is set up in order to achieve uniform density. Convection results in cold water moving down into the hot region so that the flow of water molecules assists the flow of heat. The changes which occur in this system cannot be understood without considering both processes. A system undergoing an irreversible change involving an electrolyte is electrolysis in an electrochemical cell. When current flows between two copper electrodes in an aqueous solution of CuSO4 the charge in solution is carried by migration of Cu2+ ions moving in one direction and SO42− ions moving in the opposite. At the cathode, the incoming Cu2+ ions are reduced to metallic copper, thereby lowering the concentration of these ions in the electrode’s vicinity. At the anode, Cu metal is oxidized to produce Cu2+ ions in the solution, so that the local concentration of cations is increased.
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Zalasiewicz, Jan, and Mark Williams. "Primordial Climate." In The Goldilocks Planet. Oxford University Press, 2012. http://dx.doi.org/10.1093/oso/9780199593576.003.0007.

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We are lucky, on Earth. We are lucky because we—as complex and self-aware organisms—are here. We are sustained, given air to breathe, and water, and food, by a very ancient planet: a planet past its midpoint, a planet that is nearer death than birth. Our species is a latecomer. It took some three billion years to bridge the gap from a single-celled organism (originating in this planet’s youth) to a multicellular one, and then a little over half a billion more to arrive at the diversity of species on Earth today, including Homo sapiens . In all this time, the chain of life has remained unbroken. The Earth has been consistently habitable, with an atmosphere, and land, and oceans. Since life began, our planet has never been truly deep-frozen, nor have the oceans boiled away. The Earth is the Goldilocks planet. One recalls, here, the children’s story, where the young heroine of that name walks into the house of the three bears, and in their absence tries out successively their bowls of porridge, their chairs, and their beds. Each time the first and second choices are too hot or cold, large or small, hard or soft—and the third choice is just right . The Earth has been, so far and all in all, just right for life: not just right at any one time, but continuously so for three billion years. There have, though, been some close calls: times of mass extinction. But, life has always clung on to bloom once more. That makes the Earth’s history more remarkable than any children’s story. Other planets have not been so lucky. Mars seems to have been a planet with an appreciable atmosphere, and—at least intermittently—running water over its surface, and may even have begun to incubate life. But the atmosphere was stripped away by the solar wind. Its early lakes and rivers became acid, charged with sulphates. Then, most of the water evaporated and was carried off into space; what little was left became locked away as permafrost and in thin ice-caps. Mars does have weather, including spectacular, planet-wide dust-storms.
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McFarland, Ben. "The Triple-Point Planet." In A World From Dust. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780190275013.003.0008.

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Let’s move to a vantage point a little quieter: the surface of the moon. It is so still that Neil Armstrong’s footprints remain undisturbed. The only reason the US flag there appears to “fly” is that a wire holds it up. The moon and Mercury stayed still as Mars, Venus, and Earth moved on down the road of geological development. The moon is a “steady” environment, a word whose Middle English roots are appropriately tangled with the word for “sterile.” Nothing moves on the moon, but in its sky Mars, Venus, and Earth move in their orbits, just as they moved on in complexity 4 billion years ago. Out of the whole solar system, Mars and Venus are the most like Earth in size, position, and composition. Mars is smaller, but Venus could be Earth’s twin in size. If Earth and Venus were separated at birth, then something happened to obscure the family resemblance: liquid water brought life. To chemists, liquid is the third phase of matter, between solid and gas, and its presence made all the difference. Mars gleams a bright blood red even to the naked eye, while Venus is choked with thick yellow bands of clouds. Mars is cold enough to have carbon dioxide snow, while Venus is hot enough to melt tin and boil water. Earth’s blue oceans and green continents provide a bright, primary contrast. These three siblings have drastically different fortunes. At first, they looked the same, colored with black mafic basalt and glowing red magma. The original planets were all so hot that their atmospheres were driven off into space. The oceans and the air came from within. Steam condensed into oceans on each planet’s cool basalt surface. Oceans changed the planet. Water is a transformative chemical, small yet highly charged, seeping into the smallest cracks, dissolving what it can and carrying those things long distances. Venus, Earth, and Mars do not look like the moon because they have been washed in water. Mars is dry now, but the Curiosity rover left no doubt that the red planet was first blue with water.
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"Urban and Community Fisheries Programs: Development, Management, and Evaluation." In Urban and Community Fisheries Programs: Development, Management, and Evaluation, edited by J. Lance Hebdon, Jeff C. Dillon, and Thomas McArthur. American Fisheries Society, 2008. http://dx.doi.org/10.47886/9781934874042.ch16.

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<em>Abstract.-</em>Urban fisheries are important components of a state’s fish management program because they provide opportunities for people to fish where they live. Southwest Idaho has a dozen ponds and a 38-km reach of the Boise River that function as urban fisheries. Using results from an economic mail survey conducted in 2003 we sought to evaluate southwest Idaho’s urban fisheries relative to nonurban fisheries in the state. The objectives of this study were to 1) review the fisheries management of southwest Idaho’s urban fisheries to identify opportunities for improvement, 2) to determine how high the angler use, angler pressure, and economic values of urban fisheries are, 3) to compare angler use, pressure and economic value of urban fisheries to nonurban waters in southwest Idaho and selected Idaho fisheries, and 4) to learn what components of trip cost make urban fishing trips less expensive to anglers relative to nonurban fishing trips. We estimated 82,387 angler trips to urban fisheries in southwest Idaho with the urban section of the Boise River providing 64% of the urban fishing effort. The urban ponds supported tremendous angling pressure (1,222 trips/ha) with a value from direct spending of U.S.$16,694/ha. Average trip cost for anglers fishing the Boise River was $46, which was higher than average trip cost for anglers fishing urban ponds ($21). Trip costs to nonurban fisheries ranged from $72 to $295. Urban pond anglers spent significantly less in all categories except other equipment purchased before the trip. This study confirms that urban fisheries provide affordable recreation experiences especially relative to nonurban fisheries.
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Conference papers on the topic "Hot water boiler"

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Tarasevich, Maksimilian, Aleksei Tepljakov, Eduard Petlenkov, and Vitali Vansovits. "Modeling and Identification of an Industrial Hot Water Boiler." In 2020 43rd International Conference on Telecommunications and Signal Processing (TSP). IEEE, 2020. http://dx.doi.org/10.1109/tsp49548.2020.9163503.

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Zhang, Zhihong, Zhihua Zhou, and Qinghua Ren. "Thermal Calculation of Environmentally Friendly Gas-Fired Vacuum Hot Water Boiler." In 2008 2nd International Conference on Bioinformatics and Biomedical Engineering. IEEE, 2008. http://dx.doi.org/10.1109/icbbe.2008.323.

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Amroun, Hamdi, Yacine Benziani, M'Hamed Hamy Temkit, and Mehdi Ammi. "Advanced Statistical Models for Modeling Hot Water Consumption Using a Connected Boiler." In 2018 IEEE International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber, Physical and Social Computing (CPSCom) and IEEE Smart Data (SmartData). IEEE, 2018. http://dx.doi.org/10.1109/cybermatics_2018.2018.00040.

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Kushch, Aleksandr S., Steven M. Skinner, Richard Brennan, and Pedro A. Sarmiento. "Development of a cogenerating thermophotovoltaic powered combination hot water heater/hydronic boiler." In THERMOPHOTOVOLTAIC GENERATION OF ELECTRICITY. ASCE, 1997. http://dx.doi.org/10.1063/1.53304.

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Tani, K., Y. Harada, and Y. Kobayashi. "Unusual Application of Plasma Sprayed Coating for Boiler Tubes in Oil-Fired Boilers." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p0951.

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Abstract The unusual effects of plasma sprayed coating on the fire-side of evaporator tubes located in an oil-fired steam generating boiler are discussed. The main heat transfer surfaces are constructed by heat exchanger tubes, evaporator tubes and superheaters. Maintenance to prevent of the boiler failure or the preserve heat exchanger effectiveness is a very important factor in the operation of boiler facilities. In a boiler which employs heavy gravity oil as a fuel, plasma sprayed Ni-Cr alloy has often been applied to boiler tubes for the relief of hot corrosion by combustion gas. However, the circulation of boiler water causes an internal deposit to form on the inner wall of evaporator tubes. The internal deposit generates excess heat load against the tubes. As the overheating of the tubes often causes the evaporator tubes to fail, they are chemically cleaned periodically. In this paper, the influence of Ni-Cr plasma sprayed coating for the heat flux, which dominates the formation of the internal deposit, is investigated. Ni-Cr plasma sprayed coating is substitutionally hot corrosion resistant and is a composite coating into which the fuel ash containing a vanadium or sulfur compound are interstitially penetrated and solidified. It is derived that the existence of the coating on the fire-side of the evaporator tubes normalizes the heat load in their inner walls. Moreover, the suppression of internal deposit formation decreases the frequency of chemical cleaning for tubes. The dual effects of plasma sprayed coating for hot corrosion resistance in the fire side and the suppression of internal deposit on the water side of the tubes are reported.
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STANKOV, P., D. MARKOV, Y. DINKOV, and D. TOPOROV. "BURNERS CONFIGURATION IMPACT ON THE THERMAL EFFECTIVENESS OF THE PTVM-100 (R) HOT WATER BOILER." In Proceedings of the Fourth International Conference. WORLD SCIENTIFIC, 1999. http://dx.doi.org/10.1142/9789814291071_0021.

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Qi, Guo-Li, Wei-Feng Chen, Zhong-Wei Wang, Song-Song Zhang, Yong-Qiang Chang, Xue-Min Liu, and Jian Guan. "Combustion Characteristic Numerical Simulation and Analysis on New Type Pulverized Coal-Fired Hot Water Boiler." In 3rd 2017 International Conference on Sustainable Development (ICSD 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/icsd-17.2017.22.

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Mihaescu, Lucian, Gabriel Negreanu, Ionel Pisa, Viorel Berbece, Gheorghe Lazaroiu, and Emil Enache. "New design of a flame-tube steam generator basedon a hot water boiler burning agricultural waste." In 2020 7th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE). IEEE, 2020. http://dx.doi.org/10.1109/eeae49144.2020.9279081.

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Yuhang, Liu, Liu Guowei, and Li Meixuan. "Study on operation characteristics and structure optimization of backwater jet device for downcomer of hot water boiler." In 2017 2nd International Conference on Robotics and Automation Engineering (ICRAE). IEEE, 2017. http://dx.doi.org/10.1109/icrae.2017.8291410.

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Gill, Gurjot S., and Alan S. Fung. "30-Year Life Cycle Cost of Solar Based Domestic Hot Water Systems for Ontario." In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54313.

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The heating of water for domestic purposes presently accounts for 24 percent of Canadian residential energy consumption (Natural Resources Canada, 2006). This energy demand is primarily met by conventional sources such as electricity, natural gas and oil. Recent changes in fuel availability and price as well as environmental concerns lead consumers to give further consideration to the use of solar energy for heating water. The objective of this paper is to simulate the different domestic hot water (DHW) systems to examine their fuel consumption, greenhouse gases (GHG) emissions, life cycle costs and pay back periods. In this case study, seventeen different DHW systems were simulated using TRNSYS as simulation engine. These include solar-based models (with electric and natural gas backup tanks), electric and natural gas tank models (with and without gray water heat recovery), on-demand and combo-boiler systems. This paper will discuss three solar-based systems in detail, however their result comparison with other systems will be discussed. Three different solar-based systems are: I) Solar pre-heat with .56 efficiency natural gas back up tank; II) Solar pre-heat with .94 efficiency electric back up tank; III) Timers (off during peak times 7am till 10 pm) with solar pre-heat and electric (.94 efficiency) secondary. Results indicate that solar alternative having timers with solar pre-heat and electric secondary gives best results in terms of annual fuel consumption ($93) and GHG emissions (266 kg). However on demand modulating gas combo boiler (0.78 efficiency) with gray water heat recovery (0.6 efficiency) has best 30-year life cycle cost ($12332).
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Reports on the topic "Hot water boiler"

1

Park, Cheol, and Stanley T. Liu. Performance of a commercial hot water boiler. Gaithersburg, MD: National Institute of Standards and Technology, 1998. http://dx.doi.org/10.6028/nist.ir.6225.

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Kweller, E. R. Laboratory teats of a gas fueled modulating type hot water boiler. Gaithersburg, MD: National Bureau of Standards, 1985. http://dx.doi.org/10.6028/nbs.ir.85-3142.

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BIBB AND ASSOCIATES INC SHAWNEE MISSION KS. Limited Energy Engineering Analysis (EEAP) Study of Summer Boiler at High Temperature Hot Water Plants, Fort Leonard Wood, Missouri. Fort Belvoir, VA: Defense Technical Information Center, September 1993. http://dx.doi.org/10.21236/ada330871.

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Garrison, James A. Compliance Testing of Hot Water and Steam Boilers, Shaw AFB, South Carolina. Fort Belvoir, VA: Defense Technical Information Center, February 1989. http://dx.doi.org/10.21236/ada208701.

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Park, Cheol, and George E. Kelly. A study on the performance of residential boilers for space and domestic hot water heating. Gaithersburg, MD: National Institute of Standards and Technology, 1989. http://dx.doi.org/10.6028/nist.ir.89-4104.

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Bank Premises Department - Note Issue Department - Fitzroy - Victoria Parade - Hot Water Boiler - 1934-1940. Reserve Bank of Australia, March 2022. http://dx.doi.org/10.47688/rba_archives_2006/24566.

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