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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 105 for “"Boilers"”.
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Steam boilers
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1876
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Coal tests under steam boilers
Made available in DSpace on 2016-11-09T23:47:50Z (GMT). No. of bitstreams: 2 5965654.pdf: 13185736 bytes, checksum: ba7c83510f31c0626b34e7cd3529da7a (MD5) license.txt: 4183 bytes, checksum: 1dcc2037833d76bede73d5717587543b (MD5) Previous issue date: 1906
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Tests of house heating boilers
Made available in DSpace on 2017-11-30T22:46:18Z (GMT). No. of bitstreams: 2 5958545.pdf: 2930149 bytes, checksum: ca7a56543b6d3039a7d22d51e7961341 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1897
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Solar Augmentation of Process Steam Boilers for Cogeneration
In this study, the techno-economic feasibility of converting an existing process steam plant into a combined heat and power plant, using an external solar thermal field as the additional heat source was studied. Technical feasibility entailed designing a suitable heat exchanger, which uses hot oil …
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A mathematical model of coal-fired fluidised bed boilers
A mathematical model of a large coal-fired fluidized bed boiler for power generation is synthesised. The effect of variations in the main parameters of the model on variables such as the background carbon concentrations in the bed, and the transient response of heat evolution are studied. The …
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Fundamentals of design of small oil-fired heating boilers
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1937.
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Partial singular integro-differential equations models for dryout in boilers
A two-dimensional model for the annular two-phase flow of water and steam, along with the dryout, in steam generating pipes of a liquid metal fast breeder reactor is proposed. The model is based on thin-layer lubrication theory and thin aerofoil theory. The exchange of mass between the vapour core …
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Activated Carbon Injection for Mercury Control in Coal-Fired Boilers
… technology for mercury control in coal-fired boilers. We are interested in determining whether the diffusion rate or the absorptive capacity of the sorbent particle limits mercury absorption. A mathematical model was developed to estimate mercury diffusion rates in flue gas. With the model, …
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Development of a dynamic modelling of biomass boilers using flownex
The textile, distillery, and pharmaceutical commercial enterprises are among a large group of industries requiring process steam in their production processes. The shift towards renewable energy sources is extended to industrial scale steam generators, whose designs need to allow flexibility in …
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Development of a Dynamic Modelling Technique for Sizing Wood Chip Boilers
… house is equipped with one or more suitable boilers that may be oil or gas fired or they may consume some solid fuel which is often wood based, mainly wood chips or pellets. This kind of district heating (DH) system is owned by the municipality, energy service company/co-operative or both, In …
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Some studies relating to the design of shallow, fluidized bed boilers
The concept of shallow fluidized bed boilers is defined and a preliminary working design for a gas-fired package boiler has been produced. Those areas of the design requiring further study have been specified. Experimental investigations concerning these areas have been carried out. A …
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Modelling and simulation of fluidized-bed boilers and gasifiers for carbonaceous solids.
SUMMARY A comprehensive computer simulation program that can deal with a wide range of different operating conditions in fluidized bed combustion and gasification has been developed. It includes the possibility of simulating operations with various types of coal, charcoal or wood and can predict …
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Detailed model for robust feedback design of main steam temperatures in coal fired boilers
Main steam temperatures play a significant role in large coal fired power plant operation. Ideally, main steam temperatures should be accurately controlled to protect the thick wall components against long term overheating and thermal stress while meeting the design conditions at the steam turbine …
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A methodology to investigate the cause of quenching in once-through tower type power plant boilers
Due to the penetration of variable renewable energy (VRE) sources, conventional coal fired power plants need to operate with greater flexibility via two-shifting or low load operation whilst remaining reliable and conserving the lifetime of components. Thick sectioned components are prone to …
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Integrated process and control modelling of water recirculation in once-through boilers during low load and transient operation
… rate through the evaporator tubes of once-though boilers must be significantly higher than the evaporation rate to protect against overheating of the tubes until once-through operation is reached. Controlling the minimum required water flow rate through the evaporator and economiser is notoriously …
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Evaluation of zero-dimensional furnace models for biomass-fired boilers with the aid of CFD and plant measurements
… an area of active research. Modelling biomass boilers is critical for optimising their design, performance, and control. A key challenge is accurately predicting waterwall heat uptake, furnace exit gas temperature (FEGT), and direct radiation impinging on downstream heat exchangers under …
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How A Vessel of This Magnitude Was Moved : A Comparative Analysis of Confederate Ironclad Steam Engines, Boilers, and Propulsion Systems
… on Confederate ironclad steam engines, boilers, and propulsion systems. Using a comparative analytical approach, the steam plants of 27 ironclads are assessed by source, type, and performance, among other factors. This has resulted in an analysis of steam machinery development during the …
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Small and medium scale industrial boilers in China : factors contributing to efficiency and carbon dioxide emissions, and strategies to combat global warming
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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