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Determinação de índices de ajuste no controle de sistema de condicionamento de ar do tipo \'teto frio\'. / Determination of adjustment indexes in control of \"cooling ceiling\" air conditioning system.Ikeda, Marcelo Jun 14 May 2008 (has links)
O presente trabalho é um estudo para a determinação de índices de ajuste em medidas efetuadas por sensores de temperatura do ar utilizadas em algoritmos de controle do sistema de automação do sistema de condicionamento de ar do tipo \"Teto Frio\". É um trabalho experimental baseado na coleta de dados de diversas variáveis ambientais em um laboratório que utiliza este tipo de sistema. Esse laboratório possui um sistema de climatização misto composto por circuitos de água gelada que percorre serpentinas instaladas em placas metálicas de forro, para troca de calor por radiação (retirada de calor sensível) e circuitos de ar, com distribuição de ar pelo teto, para troca de calor por convecção (retirada de calor latente). Seu funcionamento é controlado por um sistema de automação (hardware e software) específico. Este estudo pretende determinar índices de ajuste que, introduzidos nos algoritmos de controle do sistema de automação, corrijam as leituras de temperatura do ar realizadas no ambiente por sensores do sistema posicionados em locais que, embora esteticamente sejam os mais adequados, funcionalmente, não o são. Os resultados, concluídos através de método estatístico e recursos de representação gráfica, promoverão além do melhor entendimento das condições térmicas do ambiente oferecidas pelo sistema de \"teto frio\", a otimização da operação do sistema, isto é, a melhoria do conforto para os ocupantes e a conservação de energia. / The present work is a study to determine adjustment indexes in measurements made by air temperature sensors used in control algorithms of automation system applied to \"Cooling Ceiling\" air conditioning system. It is an experimental work based on data collection of several environmental variables at a laboratory which uses this kind of system. This laboratory owns a mixed air conditioning system compounded by chilled water circuits which pass through coils installed on metal ceiling tiles, for heat exchange by radiation (sensitive heat withdrawal), and air circuits with distribution by ceiling, for heat exchange by convection (latent heat withdrawal). Its functioning is controlled by a specific automation system (hardware and software). This study intends to determine adjustment indexes which, added in system control algorithms correct the air temperature readings accomplished in the environment by system sensors located in places that, although aesthetically are more suited, functionally are not. The results, concluded through statistic methods, and graphic representation researches, will promote beyond better understanding of thermal conditions of environment offered by this cooling ceiling system, optimization of system operation, that are a better comfort for the occupants and the energy saving.
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Determinação de índices de ajuste no controle de sistema de condicionamento de ar do tipo \'teto frio\'. / Determination of adjustment indexes in control of \"cooling ceiling\" air conditioning system.Marcelo Jun Ikeda 14 May 2008 (has links)
O presente trabalho é um estudo para a determinação de índices de ajuste em medidas efetuadas por sensores de temperatura do ar utilizadas em algoritmos de controle do sistema de automação do sistema de condicionamento de ar do tipo \"Teto Frio\". É um trabalho experimental baseado na coleta de dados de diversas variáveis ambientais em um laboratório que utiliza este tipo de sistema. Esse laboratório possui um sistema de climatização misto composto por circuitos de água gelada que percorre serpentinas instaladas em placas metálicas de forro, para troca de calor por radiação (retirada de calor sensível) e circuitos de ar, com distribuição de ar pelo teto, para troca de calor por convecção (retirada de calor latente). Seu funcionamento é controlado por um sistema de automação (hardware e software) específico. Este estudo pretende determinar índices de ajuste que, introduzidos nos algoritmos de controle do sistema de automação, corrijam as leituras de temperatura do ar realizadas no ambiente por sensores do sistema posicionados em locais que, embora esteticamente sejam os mais adequados, funcionalmente, não o são. Os resultados, concluídos através de método estatístico e recursos de representação gráfica, promoverão além do melhor entendimento das condições térmicas do ambiente oferecidas pelo sistema de \"teto frio\", a otimização da operação do sistema, isto é, a melhoria do conforto para os ocupantes e a conservação de energia. / The present work is a study to determine adjustment indexes in measurements made by air temperature sensors used in control algorithms of automation system applied to \"Cooling Ceiling\" air conditioning system. It is an experimental work based on data collection of several environmental variables at a laboratory which uses this kind of system. This laboratory owns a mixed air conditioning system compounded by chilled water circuits which pass through coils installed on metal ceiling tiles, for heat exchange by radiation (sensitive heat withdrawal), and air circuits with distribution by ceiling, for heat exchange by convection (latent heat withdrawal). Its functioning is controlled by a specific automation system (hardware and software). This study intends to determine adjustment indexes which, added in system control algorithms correct the air temperature readings accomplished in the environment by system sensors located in places that, although aesthetically are more suited, functionally are not. The results, concluded through statistic methods, and graphic representation researches, will promote beyond better understanding of thermal conditions of environment offered by this cooling ceiling system, optimization of system operation, that are a better comfort for the occupants and the energy saving.
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Větrání a chlazení bytu v panelovém domě / Ventilation and cooling system for an apartment in block of flatsUřičář, Filip January 2019 (has links)
This Master’s Thesis deals with the design of ventilation and cooling of an under roof flat in a tenement building, built in the 1980s, and consists of five main parts. Within the first main part, the thesis is dedicated to the research of the current state of knowledge in the area ofventilation and cooling of residential premises, secondly, there is a detailed description of a particular flat, thirdly, the calculation for the optimal design of ventilation and cooling are made and, in the fourth part, suggested solutions are proposed with the following evaluation of them including the overall summary. The design of ventilation and cooling was carried out according to the design procedures with respect to the relevant standards and optimized to achieve the desired effect with respect to the requirements of the owner of a housing unit. As a solution, the ventilation of a flat by the Jablotron Futura´s ventilating unit and three variants of a flat cooling were proposed. After the evaluation of all cooling variants, the Sinclair´s multisplit system of cooling was chosen as the most suitable one.
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Stavebně technologická příprava prodejny Smart Light v Bratislavě / Construction-technological preparation of the Smart Light shop in BratislavaHuková, Martina January 2019 (has links)
The main subject of this diploma thesis is elaboration of construction and technological preparation for the main structure of the Smart Light shop in Bratislava. For main structure has been processed time schedule of the construction, single item budget, machine configuration design, drawing of building site, coordination situation of the building with connection to the infrastructure, safety and health protection during work on building site. Part of the thesis is processing study of main construction technological parts. Diploma thesis in technological prescript focuses on implementation of floor structure with cast epoxy walking surface. There has been elaborated testing and quality plan of this technological part. Additional chapter approximates built-in technology – cooling ceiling structure. For elaboration of this diploma thesis were used programs AutoCAD, CONTEC, BuildPowerS, Microsoft Excel, Microsoft Word.
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Velkoplošné systémy vytápění a chlazení / Large-area heating and cooling systemsKohlová, Vendula January 2022 (has links)
The aim of the diploma thesis is to design heating and cooling in the office building and the showroom. The theoretical part deals with large-scale heating and cooling systems. The types of these systems and their advantages and disadvantages are described here. The practical part is devoted to the design of heating and cooling in the assigned office building and the showroom. In this part, two variants of the design are considered. The first variant considers the use of a heat pump as a source of heat and cold. In the second variant of the solution, a gas condensing boiler is used as a heat source and a chiller as a cold source. The experimental part deals with measuring the properties of one ceiling panel. The main task was to determine the cooling capacity of the ceiling panel.
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