Air Conditioning Systems
Mostrando 13-24 de 52 artigos, teses e dissertações.
-
13. Analyze performance of capillary tube in small refrigeration system varying the speed compressor / Análise de desempenho do tubo capilar num sistema de refrigeração de pequeno porte com variação da velocidade do compressor
The need to reduce energy consumption in refrigeration and air conditioning is a priority for the refrigeration industry. This has encouraged the development of refrigeration systems more efficient and offer better performance. In this context, increases the importance of applying new technologies to a deeper understanding of these systems and the improvemen
Publicado em: 2009
-
14. Detection of bacteria genus Legionella in water samples of airconditioning systems [master degree] / Detecção de bactérias do gênero Legionella em amostras de água provenientes de sistemas de ar condicionado
Introdução: Destaca-se a importância dos organismos do gênero Legionella como agentes causadores de doenças do aparelho respiratório como a legionelose ou doença do Legionário, e ainda de um controle na manutenção adequada de sistemas de ar condicionado, uma vez que estes foram identificados como ambientes favoráveis à proliferação desses micro
Publicado em: 2009
-
15. Análises acústicas para instalação de sistemas de ar condicionado / Acoustic analyses for installation of air conditioning systems
A instalação inadequada de grandes sistemas de ar condicionado pode ter como conseqüências a geração de conflitos com a comunidade local e o desencadeamento de processos judiciais, envolvendo elevados montantes, visto que o ruído gerado por estes equipamentos pode afetar a vida de muitas pessoas. O desligamento destas unidades, por ordem judicial, ger
Publicado em: 2009
-
16. A trade-off study of a bleedless and conventional air conditioning systems.
The objective of this work is to present a trade-off study between aircraft air conditioning systems based on conventional technology (Engine Pneumatic Bleed based) and the proposed bleedless architecture, based on the MEA (More Electric Aircraft) and Bleedless Engines concepts. The pneumatic bleed system components are thus eliminated and a dedicated compre
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/04/2008
-
17. Air conditioning control systems modelling using Petri nets. / Modelagem de sistema de controle de ar condicionado baseado em redes de Petri.
Among the trends of rational use of resources, especially energy, and the need to ensure productivity and quality in the implementation of productive activities, there is the concept of intelligent building. This environment materializes the concept of integrating building systems, powering the optimization of resources and the efficiency of human labor. In
Publicado em: 2008
-
18. Measurement, prediction and analysis of airborne particles in surgical rooms. / Medição, predição e análise de partículas aéreas em salas cirúrgicas.
Air conditioning systems exert an important function in surgical rooms, to protect the surgical wound and the sterile equipments from airborne infected particles. This protection is achieved by means of a simultaneous control of the movement and distribution of the air, of the temperature, of the humidity, of the filtering, of air infiltrations from other se
Publicado em: 2008
-
19. Avaliação numérica e experimental de técnicas de controle para conforto térmico em edificações
Abstract: This work addresses the problem of numerical and experimental analysis of comfort control algorithms for air conditioning systems with one manipulated variable. This is a frequent case present in HVAC (Heating, Ventilating and Air Conditioning) systems. The aim of HVAC equipment is to promote thermal comfort for building occupants. So, in order to
Publicado em: 2008
-
20. MODELAGEM DE EVAPORADORES TIPO PLACAS PARA SISTEMAS CONDICIONADORES DE AR AUTOMOTIVOS / MODELING OF EVAPORATORS TYPE LAMINATED PLATE FOR AUTOMOTIVE AIR CONDITIONING SYSTEMS
A simulation model for automotive brazed laminate plate evaporators, for humid air cooling, was developed. The model adopts the local analysis method, where the heat exchanger is divided into a number of elemental control volumes, for which the equations of heat transfer and conservation of energy are applied. In order to determine the local heat transfer co
Publicado em: 2008
-
21. Determination of operation in office rooms with underfloor air distribution system. / Determinação de parâmetros de operação de sistema de distribuição de ar frio pelo piso em ambientes de escritórios.
ABE, V.C. Determination of operation parameters of rooms with underfloor air distribution system. 2007. 132 p. Dissertation (Master Course) - Departamento de Engenharia de Construção Civil da Escola Politécnica da Universidade de São Paulo, São Paulo, 2007. Nowadays, one of the main requirements of an office room to fully attend the use and occupation n
Publicado em: 2007
-
22. Conservação de energia em edificios comerciais atraves da implementação de dispositivos de automação / Conservation of energy in commercial buildngs through the implementation of automation devices
This work comes to present a panorama of the electric system found usually in commercial constructions of great load, with about thirty years of operation, that operate in way a little efficient for the current parameters, mainly in her air conditioning system. In that construction (in study), her system of environmental conditioning represents an increment
Publicado em: 2007
-
23. Street forestry potential on the reduction of electric energy consumption: definition of tree areas in the city of SP, interviews, evaluation of environmental factors and heat degree hour estimation / Potencial da arborização viária na redução do consumo de energia elétrica: definição de três áreas na cidade de São Paulo - SP, aplicação de questionários, levantamento de fatores ambientais e estimativa de Graus-Hora de calor
The problematic to obtain and use energy in a conscious way in cities is a polemic issue nowadays. Frequently, urban areas have darker surfaces areas with less vegetation than neighbor areas. These differences affect the climate, the energy use and the quality of life. One of the action lines to promote an efficient use of electric energy in cities, through
Publicado em: 2007
-
24. Support system for utility and energy management: utilization of information systems and decision support systems concepts. / Sistema de apoio à gestão de utilidades e energia: aplicação de conceitos de sistemas de informação e de apoio à tomada de decisão.
This work deals with specification, development and utilization of the Support System for Utility and Energy Management - SAGUE, a system created to assist in analysis of data collected from utilities systems as compressed air, vapor, water pumping systems, environmental conditioning systems and others, integrated with energy consumption and climatic measure
Publicado em: 2007