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Comfort Air Conditioning Systems and Application
Trávníček, Tomáš ; Košner, Jan (referee) ; Janotková, Eva (advisor)
This bachelor work deal with analysis factors determining state of inside environment of buildings, where human resides. In next step is mentioned research fission, comparison and using single comfort air conditioning systems. Some air conditioning make possible usage backward obtaining heat. In work are mentioned possibilities usage heat pumps.
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OPTIMIZATION OF A FUZZY CONTROL DESIGN WITH RESPECT TO A PARALLEL MECHANISM WORKSPACE
Andrš, Ondřej ; Maga, Dušan (referee) ; Singule, Vladislav (referee) ; Březina, Tomáš (advisor)
The Ph.D. thesis is focused on using the fuzzy logic for control of a parallel manipulator based on a Stewart platform. The proposed mechanism makes possible to simulate the physiological movements of the human body and observe degradation processes of the cord implants. Parallel manipulators such as a Stewart platform represent a completely parallel kinematic mechanism that has major differences from typical serial link robots. However, they have some drawbacks of relatively small workspace and difficult forward kinematic problems. Generally, forward kinematic of a parallel manipulators is very complicated and difficult to solve. This thesis presents a simple and efficient approach to design simulation model of forward kinematic based on Takagi-Sugeno type fuzzy inference system. The control system of the parallel manipulator id based on state-space and fuzzy logic controllers. The proposed fuzzy controller uses a Sugeno type fuzzy inference system (FIS) which is derived from discrete position state-space controller with an input integrator. The controller design method is based on anfis (adaptive neuro-fuzzy inference system) training routine. It utilizes a combination of the least-squares method and the backpropagation gradient descent method for training FIS membership function parameters to emulate a given training data set. The proposed fuzzy logic controllers are used for the control of a linear actuator. The capabilities of the designed control system are shown on verification experiment.
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Air Condition of theatre
Běťák, Karel ; Blasinski, Petr (referee) ; Uher, Pavel (advisor)
The bachelor’s thesis deals with the design of air-conditioning system for a small town theater. Ventilation will ensure coverage of heat gains and losses in the theater hall and forced ventilation of adjacent areas will ensure optimum internal microclimate. The needs of actors and viewers will be provided by three air handling units.
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Rocker for Formula Student Vehicle
Šprta, Petr ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
This thesis deals with a prototype of the rear suspension rockers of the racing monopost Dragon 10th generation, which is being developed at the Brno University of Technology within the international educational project Formula Student. Based on the research, the technology method of casting has been chosen for this purpose. The input for the prototype of the rocker arms is based on the impacting forces and suspension points given by kinematics of the vehicle. Based on these facts, topology optimization of the shapes has been conducted and the components have been modelled accordingly. Followingly, optimization focused on minimizing weight, deformation and stress were conducted using the reverse loading of modelled components. The last part of this thesis is concerned in the comparison of rear rockers of the last year‘s monopost Dragon 9. Taking into consideration the change of the concept, the mechanical properties of rockers are slightly better.
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Parametric Study of Air Heat Exchanger
Podola, David ; Volavý, Jaroslav (referee) ; Fišer, Jan (advisor)
This diploma thesis deals with the impact of changes in operating and geometrical parameters of regenerative heat exchanger on the efficiency of decentralized ventilation units with heat recovery. Decentralized ventilation unit can be used for ventilation of family houses or smaller administration buildings. Output of this work is to determine the efficiency of a particular produced model of decentralized ventilation unit and overview of the possibilities increased efficiency of heat recovery of this units.
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Air Condition of kindergarten
Bombera, Jiří ; Rubinová, Olga (referee) ; Uher, Pavel (advisor)
The bachelor thesis is focused on a design of a mechanical ventilation consisting air-to-air heat exchanger for the kindergarten. In classes the cooling system multisplit is installed to reach requested thermal comfort, in the kitchen the thermal comfort is realized by flow of cooled air. The aim is to achieve desired indoor psychrometric conditions of the kindergarten.
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TTP protocol for managing hierarchy trees of RTCP feedback channel
Müller, Jakub ; Komosný, Dan (referee) ; Burget, Radim (advisor)
TTP protocol for managing hierarchy trees of the RTCP feedback channel represents the mechanism for transferring the big amount of data from end users via the “narrow” feedback channel. We are not speaking about thousands of users but about millions of users, which are using services like IPTV. The method of a data summarization is used for this purpose in selected network nodes. The summarized message is transferred and summarized again in higher levels of the hierarchical tree. Both methods allow reducing the amount of data and help to increase information content transferred via the feedback channel. Finding of the correct end user position in a network is also very important aspect. The user must be able to find the closest summarization node with this information and starts sending out the messages to this node for processing. There are several methods for constructing and managing the asynchronous feedback channel that are introduced in this work.
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Game Environment Checking by a Swarm of Autonomous Agents
Heindlová, Tina ; Nečasová, Gabriela (referee) ; Zbořil, František (advisor)
This thesis studies engine Enfusion and how to start with it. It describes the creation of a minigame to introduce the engine. Further, a backtracking algorithm for the detection of inconsistent states in the game worlds is introduced. Thesis describes how to create a simple world and its testing. The algorithm is tested and the testing results are discussed. In the end, it describes more methods of solutions.
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Air condition of cultural center
Bělehrádek, Lukáš ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
The aim of the bachelor thesis is to design an air condition of cultural center. The theoretical part describes processes of heat recovery in general, followed by description of various heat recovery ventilation systems in airconditioning. Design of an air condition for a multipurpose hall with an entrance hall and a pub is dealt with in the practical part of the thesis. The design consists of two air-conditioning units for cooling, and for warm air heating. The last part of the thesis consists of design documents for the air condition of cultural center.
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Effects of mechanical doings on optical data transport
Tihlařík, Tomáš ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
This master´s thesis deals with of human factor impact on optical fibers manipulation. It describes types and methods used for splicing and placing optical fibers and optical cables. These methods are specified in the chapters; their application in different environments and conditions is accentuated. This paper presents splicing optical fibers. It emphasizes problems which can occur if proper procedures aren´t kept or if improper device is used. In the thesis there is the chapter dealing with problems which can arise during splicing optical fibers - these negative influences are evaluated with educational equipments EF-970-01 PLASTIC by the company MIKROKOM, s.r.o. Another aim of the work is to describe mechanical optical fiber splice 3MTM FibrlokTM. This kind of device was lent for testing optical fibers multiple splicing. It was tested under extreme conditions. Statistically processed values of insertion loss and splice reflectance, measured by OTDR are the results of the test. Comparing measured values, technical report ones, regarding for usage in practice, there is a possibility of 75 multiple reusing of the mechanical optical fiber splice. The prediction of magnitude insertion loss, calculated for thousands splice cycles follows. The next part of the work deals with fusion splices and contains comparison of splices made with two cleavers: CORNING LWL-TRENNGERAT S46999-M9-D12 and the later model - Fitel S325A cleaver. The result is that older S46999-M9-D12 model gained lower attenuation. The results of both previous measurements are influenced by human factor. It appears at mechanical optical fiber splices as growing fluctuate of insertion losses and as the unequal attenuation fusion splices at tested cleavers.
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