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Abstract(s)
A área de desenvolvimento de instalações AVAC tem evoluído, havendo consumidores cada vez mais exigentes. Assim, torna-se necessário aumentar a gama de opções técnicas, garantindo uma boa resposta a todos os requisitos apresentados pelos clientes. A presente dissertação foi realizada no âmbito de um estágio curricular em contexto de obra, na área de operações AVAC. O estágio decorreu entre os meses de outubro de 2018 e junho de 2019 numa empresa de conceção e manutenção de sistemas de refrigeração e AVAC. O foco deste trabalho é a adaptação de um projeto de execução para o contexto de obra, tendo em vista a possível redução do custo final para o cliente. Deste modo, o objeto de análise foram as alterações realizadas a um projeto dividido em duas partes: um sistema de ventilação para a expansão do parque de estacionamento e um sistema de climatização para a expansão e remodelação da zona comercial de um edifício de comércio e serviços em Portugal. O objetivo primordial deste trabalho é caracterizar as soluções encontradas em obra e os seus impactos no funcionamento e nos parâmetros energéticos do edifício. As técnicas utilizadas ao longo do projeto tiveram por base as seguintes orientações teóricas: características dos sistemas de climatização, sistemas de ventilação em parques de estacionamento e da gestão técnica centralizada associada a cada um; evolução e caracterização dos requisitos energéticos em Portugal; requisitos de qualidade de ar interior; a problemática do controlo da poluição e da segurança contra incêndios em parques de estacionamento e centros comerciais, bem como os requisitos para as vias de evacuação; e processo de comissionamento. A adaptação do projeto às condições em obra foi centrada na simplificação e redução de custos dos sistemas AVAC e na otimização do sistema de segurança contra incêndios, continuando a respeitar as imposições legais existentes.
The HVAC facility’s development area has evolved, with increasingly demanding consumers. Consequently, it’s necessary to increase the range of technical options, ensuring a virtuous response to all requirements presented by customers. This dissertation was carried out as part of a curricular internship in the area of HVAC operations. The internship took place between October 2018 and June 2019 in a company that designs and maintains refrigeration and HVAC systems. This work is focused on the adaptation of an execution project to the place and the conditions provide by the customer, in order to try to reduce the final cost to the customer. Thus, the object of analysis was the changes made to a project divided into two parts: a ventilation system for the expansion of the parking lot and an air conditioning system for the expansion and remodeling of the commercial area of a commercial and service building, located in Portugal. The main objective of this thesis is to establish the solutions found on site and their impacts on the functioning and energy parameters of the building. The methods used throughout the project were built on the following theoretical orientations: the climate control system’s characteristics, the car park ventilation system’s characteristics and the centralized management of those systems; the evolution and understanding of energy requirements in Portugal; the indoor air quality requirements; the contamination and fire’s control in shopping centers and car parks, as well as the requirements for escape routes; and commissioning process. The adaptation of the project to the conditions on site was focused on simplifying and cost savings of the HVAC systems, as well as improve the fire safety system while preserving and comply with legal requirements.
The HVAC facility’s development area has evolved, with increasingly demanding consumers. Consequently, it’s necessary to increase the range of technical options, ensuring a virtuous response to all requirements presented by customers. This dissertation was carried out as part of a curricular internship in the area of HVAC operations. The internship took place between October 2018 and June 2019 in a company that designs and maintains refrigeration and HVAC systems. This work is focused on the adaptation of an execution project to the place and the conditions provide by the customer, in order to try to reduce the final cost to the customer. Thus, the object of analysis was the changes made to a project divided into two parts: a ventilation system for the expansion of the parking lot and an air conditioning system for the expansion and remodeling of the commercial area of a commercial and service building, located in Portugal. The main objective of this thesis is to establish the solutions found on site and their impacts on the functioning and energy parameters of the building. The methods used throughout the project were built on the following theoretical orientations: the climate control system’s characteristics, the car park ventilation system’s characteristics and the centralized management of those systems; the evolution and understanding of energy requirements in Portugal; the indoor air quality requirements; the contamination and fire’s control in shopping centers and car parks, as well as the requirements for escape routes; and commissioning process. The adaptation of the project to the conditions on site was focused on simplifying and cost savings of the HVAC systems, as well as improve the fire safety system while preserving and comply with legal requirements.
Description
Keywords
AVAC Sistema de Climatização Ventilação por Impulso Desenfumagem RECS Eficiência Energética QAI Comissionamento Simulação dinâmica (CFD) HVAC Climatization System Impulse Ventilation Smoke Control Energy Performance Regulation for Commercial and Service Buildings IAQ Commissioning Computational Fluid Dynamics Simulation