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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Využívání odpadního tepla / Heat recovery

Dužík, Vojtěch January 2018 (has links)
The aim of this diploma thesis is to theoretically, practically and experimentally explore different ways of waste heat utilization in the building industry. The work is divided into three basic passages. In the first part I analyze the theoretical nature of the various physical processes in recovery and is there a practical use. More emphasis is placed on heat recovery from wastewater, as I am using this way of recuperation in other parts of this diploma thesis. In the second point, I apply the use of heat from waste water when designing a technical solu-tion for the reconstruction of the heating system of the clinic. The design is solved in two variants. The first suggested location lokali- them, recuperative, shower exchanger operation rehabilitation, bath and massage. In the second variant, central recovery is envisaged using a heat exchanger in the accumulator well and water-water heat pump. Based on the technical and economic evaluation, the first option was selected. The second variant is ineffective and remains only in the case study. In the last section, I experimentally investigate the thermal efficiency and the relative savings of the heat exchanger, which is designed in the first variant of the second part. Measurement, processing of results and evaluation I made for laboratory conditions and for real conditions with the showering person. Finally, I appreciate the eco-nomic benefits of this facility.
62

Napěťové zkoušky za mokra / Voltage tests under wet condition

Vondrák, Michal January 2017 (has links)
The main objective of presented thesis is to design a shower system in order to extend voltage tests by voltage wet testing. The introduction focuses on important aspects related to voltage wet testing. Such aspects originates mainly from Czech but also foreign standards. Following part of the thesis deals with specific wet testing design proposals, which fulfil the standards requirements. The final part of presented thesis is focused on partial experiments. Namely the analysis of rain water properties, behavior of rain drops exiting the nozzle with varying flow and nozzle angle, wet test on insulator in dry and wet conditions.
63

[en] ESTIMATING THE DAILY ELECTRIC SHOWER LOAD CURVE THROUGH MEASUREMENTS AND END USERS OWNERSHIP AND USAGE SURVEYS / [pt] ESTIMATIVAS DA CURVA DE CARGA DIÁRIA DE CHUVEIROS ELÉTRICOS ATRAVÉS DE MEDIÇÕES E DECLARAÇÕES DA PESQUISA DE POSSES E HÁBITOS DE CONSUMO

SILVANA VIEIRA DAS CHAGAS 16 December 2015 (has links)
[pt] O objetivo desta dissertação é desenvolver modelos matemáticos que permitam estimar o tempo médio dos banhos com a utilização de chuveiros elétricos e a curva de carga desses aparelhos, considerando as informações das Pesquisas de Posses e Hábitos de Consumo (PPH) e medições realizadas com o auxílio de medidores eletrônicos com memória de massa, em residências com chuveiros elétricos. A motivação do estudo advém de uma exigência da ANEEL que determina que as distribuidoras de energia elétrica realizem a cada 2 (dois) ciclos de revisão tarifária a PPH em suas unidades consumidoras. Os métodos empregados foram: estatística descritiva (para a obtenção do tempo médio de banho); aplicação da regressão linear e de redes neurais (para corrigir a curva de carga horária obtida com a PPH, com base nos dados das medições). Os resultados foram promissores, pois o tempo médio de banho se encontra próximo às estimativas do PROCEL (que são de 8 (oito) a 10 (dez) minutos) e a curva de carga estimada se encontra próxima à da medição, sendo esta última o consumo real. Conclui-se que a abordagem desta dissertação resultou em melhorias na estimativa dos coeficientes de ajustes e que o método de redes neurais foi relativamente melhor que o método de regressão linear simples. / [en] The aim of this dissertation is to develop mathematical models that would allow the estimation of the average time of baths using electric showers and the load shape curves for these devices, obtained from two sources: the information of Electrical Appliances Ownership Survey and measurements of electric shower usage in households carried out with electronic meters with storage capacity. The motivation stems from a requirement of ANEEL that determines that the electric energy distributors periodically should hold a PPH in their consumer units. Concerning the average time of shower baths, the last PPH survey conducted by PROCEL in 2005 estimated this time between 8 (eight) and 10 (ten) minutes. The methods employed in this work were: descriptive statistics (for obtaining the average bath time); application of linear regression and neural networks (to estimate the correction factors to approximate the load shape curves obtained by PPH to those obtained by measurements). The obtained results are rather promising due to the following reasons: the average time of bath is next to the estimates of PROCEL and the corrected load shape curve estimated is quite close to the measured curve, the latter being the actual consumption. This approach has resulted in improvements in the estimation of the coefficients of adjustments and the method of neural networks was relatively better than the simple linear regression method.
64

Římské lázně a saunový svět / Roman spa and sauna world

Adamcová, Lenka January 2015 (has links)
This Master's thesis takes a look at the construction of the new Roman baths and sauna world with adjacent premises, all connected to the premises in the section TG02, such as the water park, restaurant, administration and rehabilitation. The plot of land intended for the implementation is situated in an undeveloped area in the urban district of Zidenice on the outskirts of the city of Brno. The entire complex of buildings forms a wave landscape with a cube as the centrepiece symbolizing water in a quarry and the reaction to the neighbouring Růženin quarry. The buildings also react to significant visual axes, one of which is the view from the Hady quarry, another of the Hady access roads. Emphasis is also placed on the views from the Roman baths, simultaneously preserving the privacy of visitors. Entrance to the two-storey Roman baths and sauna world is possible from the communal changing rooms in the water park, but also separately. The Sauna world located on the first floor is lit by an atrium that connects it with the Roman baths on the second floor. There are eight dry saunas from different corners of the world, various cold-zones, three massage rooms and three relaxation rooms. A relaxing swimming pool and a fountain in the seating area of the saunabar are significant elements of the central space. Located inside the Roman baths are nine heating rooms all of different temperatures and moisture levels, a large cooling room, and a small swimming pool with an adjacent jacuzzi in the central area, both with beautiful views. From this section, you can walk out onto the adjacent terrain, where there is a large outdoor swimming pool and sauna. There is a polarium, a private spa, a small spa shop, massages and special baths each with their own entrance. On the third floor there is accommodation, a conference room and a fitness centre.
65

Provoz a řízení sprchových rekuperačních výmeníků / Operation and management of shower heat recovery exchanger

Veselská, Monika January 2015 (has links)
This thesis deals with the operation and management of shower recuperative heat exchangers, energy recovery from them and further use of this energy. This work is divided into four parts. The first presents the possibilities of using energy from wastewater. The second part deals with the design possibilities of energy recovery from waste water in the building, design water and sewer . The third part is devoted to the specification of the shower regenerative heat exchanger, its operation, regulation and control, culminating in economic evaluation of the proposed exchanger. The last part is a technical report and annexes drawings of the project.
66

Bytový dům / Residential Building

Uhlíř, Karel January 2013 (has links)
Diploma thesis develops comprehensive documentation of the new building construction of residential house on the level of the implementation of the project construction. Proposal emphasizes layout of linked to ensure the technical design, structural, fire safety, protection against noise, energy saving, safety in use. Work is performed in an electronic format using AutoCAD and Microsoft Word (PDF Creator).

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