National Repository of Grey Literature 10 records found  Search took 0.01 seconds. 
Fuel change for hot water boiler
Mik, Martin ; Nechvátal, Ondřej (referee) ; Skála, Zdeněk (advisor)
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.
Changing the fuel base of the coal boiler
Přikryl, Josef ; Nechvátal, Ondřej (referee) ; Skála, Zdeněk (advisor)
The diploma thesis contains calculations of gasification of coal boiler. The first part of thesis contains stochiometric calculations, heat balance and calculations of combustion chamber. In the next part are calculations of heat exchange surfaces and at the end of this part are calculations of regenerative air heater and total boiler balance. Calculations are made by regard to investments costs, preservation of the steam parameters and keeps emissons limits.
Oil boilers gasification in sugar refinery 65 t/h, 3,8 MPa, 450 °C
Štukavec, Karel ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
This masters thesis deals with the gasification of current oil boiler. The first part of the thesis describes the existing boiler. The next part follows gasification with respect for comply with the limits of NOX and recalculation of boiler for operation with the natural gas.
Changing the fuel base of the coal boiler
Přikryl, Josef ; Nechvátal, Ondřej (referee) ; Skála, Zdeněk (advisor)
The diploma thesis contains calculations of gasification of coal boiler. The first part of thesis contains stochiometric calculations, heat balance and calculations of combustion chamber. In the next part are calculations of heat exchange surfaces and at the end of this part are calculations of regenerative air heater and total boiler balance. Calculations are made by regard to investments costs, preservation of the steam parameters and keeps emissons limits.
Application of system dynamics in selected municipality
Těžký, Vojtěch ; Krejčí, Igor (advisor) ; Horáková, Tereza (referee)
This work is focused on the application of the system dynamic in the selected municipal. In the first theoretical part is explained history, principles of the system dynamics. Furthermore, it is approached, its relation to systemic thinking, how it is necessary to change the view of the world and its functioning for the use of system dynamics. In the last section dedicated to system dynamics explains the basic archetypes of behavior. In the section that deals with municipal budgets are explained the principles on which it is based budgeting and also from which the components are made. The practical part is devoted to the assembly of the model and then evaluating the results of simulations of several scenarios. Two scenarios used for simulation were: Reducing expenditures for the proper repayment of debt, then the possibility of completing the pipeline network.
Fuel change for hot water boiler
Mik, Martin ; Nechvátal, Ondřej (referee) ; Skála, Zdeněk (advisor)
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.
Oil boilers gasification in sugar refinery 65 t/h, 3,8 MPa, 450 °C
Štukavec, Karel ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
This masters thesis deals with the gasification of current oil boiler. The first part of the thesis describes the existing boiler. The next part follows gasification with respect for comply with the limits of NOX and recalculation of boiler for operation with the natural gas.
Application of LNG in Transport
Machalová, Markéta ; Sedláček, Jiří (advisor) ; Žákovec, Jan (referee)
This bachelor's thesis evaluates the various aspects of implementation of LNG (liquefied natural gas) as a fuel for a smaller transport company. Today, more and more alternative fueled vehicles are being used. One of the most common alternative fuels is natural gas in the form of either LNG or CNG (compressed natural gas). The objective of this thesis is to determine, whether the investment in LNG installation is convenient for the Děčín city transport company. By analysis and calculation I came to the conclusion, that gasification of buses is advantageous compared to diesel from the safety, ecological and economical point of view. Due to technical and legislative obstacles, LNG is currently less profitable for a smaller transport company than CNG. LNG implementation is now in Czech Republic convenient for transport companies in towns, where pipeline does not have enough capacity for CNG installation.
Dopravni podnik mest Mostu a Litvinova
Ševčík, Karel ; Mervart, Michal (advisor) ; Tuček, Gerhard (referee)
This thesis concerns about a company providing urban mass transportation services in the cities of Most and Litvinov. The theoretical part contains basic definitions and terms of private transportation, its subsystems and it also shortly describes a history of gas in transportation. At the beginning of the practical part the history of the urban mass transportation in the region is described, followed by a description of the company providing transportation services. The practical part is finished with a process of plynofication and its economic and ecological analysis. The aim of the thesis is to provide an image of the urban mass transportation of the region in the past as well as in the present days and to review the economy and the environmental contribution of the plynofication.
Vytápění alternativními zdroji energie
Stříbrská, Petra ; Dvořák, Antonín (advisor) ; Hadrabová, Alena (referee)
Ve své bakalářské práci bych ráda poukázala na rostoucí nutnost zabývat se otázkou ?Čím budeme topit??. Mám na mysli prozatím pro většinu naší společnosti uzamčenou 13. komnatu s názvem ?Netradiční zdroje tepla?. A proto bych na několika stránkách mé práce chtěla Vás, čtenáře, seznámit s tím, co vše si můžeme představit pod pojmem netradiční zdroj tepla. Někdy se můžeme setkat i s pojmem obnovitelný zdroj tepla. Jde v podstatě o ty zdroje tepla, které se samy obnovují přirozeným koloběhem přírody, například sluneční energie, teplo získané z vody, ze vzduchu, tepelná čerpadla? Já se ale zaměřím pouze na biomasu ? především peletky, ale zmíním se i o dřevěných briketách a bioplynu ? a jaké přínosy představuje pro lidstvo. Chtěla bych samozřejmě také pohovořit o naší černé minulosti a tím je negativní dopad masivního spalování uhlí na naše životní prostředí. Poukázat na trendy ve vytápění a to jak v minulosti, současnosti, tak i naší budoucnosti. Upozornit na hrozbu opětovného návratu k vytápění tuhými palivy a vyzvednout výhody ekologičtějšího způsobu vytápění objektů a tím jsou právě netradiční zdroje ? biomasa. Nic ovšem není zadarmo, a zisk laciného a ekologického tepla je vyvážen vysokými investicemi. I zde tedy platí zásada, že za pohodlí a zdraví naší budoucí generace musíme platit. A právě prvotním investicím, úsporám za platbu tepla a době návratnosti je věnována závěrečná část mé práce. Byla bych velmi ráda, kdyby se většina čtenářů po prostudování mé práce se zamyslela nad tím, jak moc aktuální je téma změny způsobu vytápění a jak oni sami si v budoucnu budou chtít zařídit svůj vlastní zdroj tepla. Doufám, že můj příspěvek někoho ovlivní při rozhodování jaký zdroj tepla si zvolit při vytápění domu a že to budou třeba pelety.

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