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steam boiler for wood biomass 25t/h,5,5MPa, 475°C
Pecháček, Michal ; Kohout, Přemysl (referee) ; Skála, Zdeněk (advisor)
The work deals with design of steam grate boiler with a output of 25 t/h, parameters of steam output p = 5.5 MPa, t = 475 °C and a temperature of feed water 105 °C. It is a boiler with natural water circulation by evaporation surfaces. Wood biomass is boiler fuel. The proposal consists of stoichiometric calculations, determination of boiler efficiency, thermal calculations and determinion geometric parameters of the boiler and its heat transfer surfaces. The boiler drawing is a part of the work.
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Gasification of coal boiler 210 t/h; 13,63 MPa; 540 °C
Zajíc, Josef ; Lisý, Martin (referee) ; Baláš, Marek (advisor)
This thesis aims to gas installation of the coal boiler and its thermal recount. In the first part, there is implemented calculation of the combusting chamber. After that follows the recalculation of heat exchange surfaces and proposal tube air heater, which will replace the existing air heater Ljungström. The emphasis is placed on the preservation of the exsiting steam parametrs and keeps emission limit of NOx.
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Thermal calculation of steam boiler
Růžička, Tomáš ; Lisý, Martin (referee) ; Baláš, Marek (advisor)
The topic of this thesis is the thermal calculation of steam boiler with natural gas fuel. The first part is describing technical characteristic and parametres of the boiler. The main part of this thesis is the thermal calculation of the boiler. The following part deals with determination of steam amount and steam parametres for blowing through pipes of the boiler.
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Calculation methods for tube banks heat exchanger
Housírek, Jiří ; Jegla, Zdeněk (referee) ; Kilkovský, Bohuslav (advisor)
This diploma thesis deals with calculation methods of heat exchanger with cross-flow tube bundle. The first part of the thesis contains summary of generally known basic calculation relations used in calculations of heat exchangers and a detailed description of a given heat exchanger.The second part of the thesis provides a description of available calculation methods of a given aparatus required for its thermal and hydraulic calculation. The final part describes application POST in 1.0 which has been formed on the basis of these calculation methods. Using this application check calculation of exchanger with cross-flow tube bundle was carried out and gained figures compared with results gained by means of professional calculation program HTRI.
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Biomass and waste gasification and cogeneration by the help of microturbine
Kašpar, Matěj ; Najser,, Jan (referee) ; Baláš, Marek (advisor)
This diploma thesis investigate the question of combined production of heat and power by the gasification of biomass. The introduction describes basic dilemma energy conversion from biomass. Further, special attention at the gasification technology and it´s usage at combined heat and power production is paid. The main section includes schematic proposal cycle with use of microturbine 80 [kWe] as well as basic calculation, which serves as a base for folowing project optimization. For discussed optimization is made concept of configuration, thermal and aerodynamics calculation for both heat exchangers B1 and B2. Last but not least these heat exangers were compared by different aspects such as influence of deposits on power transfer and pressure loss. At the end of the work calculated numeric values are discussed and the project of heat exchanger with it´s advantages for practise are summarised.
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Steam boiler for fytomass
Lípa, Viktor ; Ing.Obrovský (referee) ; Skála, Zdeněk (advisor)
Viktor Lípa Stillage boiler Graduation theses, power department, 2008 This graduation theses deals with designer solution of the boiler, include the dimensioning heat exchangers and engineering designer of the economizer chamber. Boiler is used for stillage combustion and fitted by natural circulation in vaporizer and stoker fired furnace.
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The thermal calculation of a induction furnace
Hradilová, Irena ; Raček, Jiří (referee) ; Lázničková, Ilona (advisor)
This work deals with induction devices, in particular temperature computations of induction devices. The thesis is divided into three parts. In the first part, we give basic definitions of inductive warming and theoretical know ledge of heat induction that are needed to understand the problem of inductive warming. In the second part, we describe the principle of induction devices. We focused on crucible furnace which is described in details. We used this device for thermal computation of induction device. In the last part, we theoretically describe procedure of thermal computation of the most used induction devices, i.e., canal furnace, diathermy induction device, and crucible furnace; the last one is compared with the rest of induction devices from the computation point of view. For the induction crucible furnace, we provide numeric thermal computation at the end.
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Biomass drying
Straka, Lukáš ; Chroboczek, Libor (referee) ; Pospíšil, Jiří (advisor)
The bachelor thesis deals with the importace of drying wood biomass and design drying equipment. The challenge is to design a drying line for drying sawdust for subsequent pelleting. Perform the heat balance calculations and suggest the basic dimensions of the drum dryer output of 100 kg/h of sawdust. Finally, the drying after evaluating the technical-economic terms.
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