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Análise comparativa de sistemas de AVAC aplicados em salas de imagiologia e exames invasivos
| Name: | Description: | Size: | Format: | |
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| 5.84 MB | Adobe PDF |
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Abstract(s)
O presente trabalho pretende analisar e evidenciar as diferenças encontradas nas soluções de Aquecimento, Ventilação e Ar Condicionado (AVAC) de diferentes salas de imagiologia e exames invasivos, resultantes da regulamentação aplicável, tendo em conta a especificidade dos exames realizados e dos respetivos equipamentos. As salas de imagiologia e exames invasivos, considerados neste estudo foram: Raio X, Tomografia Computorizada, Câmara Gama, Ecografia, Endoscopia, Ressonância Magnética e Angiografia. Além dos espaços enunciados anteriormente, foi contemplado no mesmo edifício outros compartimentos adjacentes e necessários ao serviço prestado em cada um dos exames. As normas, diretivas e recomendações aplicadas em Portugal, para a realização de um projeto de AVAC em salas com esta especificidade variam consoante a unidade seja pública ou privada. Foi modelado um edifício representativo de uma unidade de imagiologia que engloba todas as salas de exames referidas anteriormente e os respetivos compartimentos adjacentes. O edifício foi caracterizado relativamente às condições exteriores, às envolventes construtivas e às cargas internas. Adicionalmente, foram quantificadas as cargas térmicas associadas ao funcionamento do edifício e os caudais de ar novo mínimos. Os equipamentos para cada uma das unidades (pública e privada) foram dimensionados de acordo com a regulamentação aplicável a cada um dos casos. Realizou-se uma simulação energética com a finalidade de comparar os consumos energéticos e custos associados a cada uma das situações.
Verificou-se que entre a unidade privada e a pública a diferença nas potências de aquecimento e arrefecimento é de 26,8 kW e 5,1 kW, respetivamente. Os consumos obtidos foram superiores na unidade privada, totalizando 406 013 kWh/ano, enquanto na unidade pública totalizaram 391 525 kWh/ano. A unidade privada apresentou um custo de operação anual de 67 418,5 € enquanto que a unidade pública apresentou 65 012,7€.
Abstract The present work aims to analyze and highlight the differences found in the Heating, Ventilation and Air Conditioning (HVAC) solutions of different imaging rooms and invasive exams, resulting from the applicable regulations, considering the specificity of the exams performed and the respective equipment. The imaging and invasive examination rooms considered in this study were: X-ray, Computed Tomography, Gamma Camera, Ultrasound, Endoscopy, Magnetic Resonance Imaging and Angiography. In addition to the spaces mentioned above, other adjacent compartments necessary for the service provided in each of the exams were contemplated in the same building. The standards, directives and recommendations applicable in Portugal for the implementation of an HVAC project in rooms of this specificity vary depending on whether the unit is public or private. A representative building of an imaging unit was modeled that encompasses all the examination rooms mentioned above and their adjacent compartments. The building was characterized in terms of external conditions, building envelopes and internal loads. Furthermore, the thermal loads associated with the operation of the building were quantified, along with the minimum new air flows. The equipment for each unit (public and private) was selected and sized in accordance with the applicable regulations. An energy simulation was conducted to facilitate a comparative analysis of energy consumption and associate costs with each scenario. The discrepancy in heating and cooling capacity between the private and public was 26.8 kW and 5.1 kW, respectively. The results indicated that the consumption in the private unit was greater than that in the public unit, with a total of 406,013 kWh/year and 391,525 kWh/year, respectively. The annual operating cost of the private unit was 67 418,5 €, while that of the public unit was 65 012,7 €.
Abstract The present work aims to analyze and highlight the differences found in the Heating, Ventilation and Air Conditioning (HVAC) solutions of different imaging rooms and invasive exams, resulting from the applicable regulations, considering the specificity of the exams performed and the respective equipment. The imaging and invasive examination rooms considered in this study were: X-ray, Computed Tomography, Gamma Camera, Ultrasound, Endoscopy, Magnetic Resonance Imaging and Angiography. In addition to the spaces mentioned above, other adjacent compartments necessary for the service provided in each of the exams were contemplated in the same building. The standards, directives and recommendations applicable in Portugal for the implementation of an HVAC project in rooms of this specificity vary depending on whether the unit is public or private. A representative building of an imaging unit was modeled that encompasses all the examination rooms mentioned above and their adjacent compartments. The building was characterized in terms of external conditions, building envelopes and internal loads. Furthermore, the thermal loads associated with the operation of the building were quantified, along with the minimum new air flows. The equipment for each unit (public and private) was selected and sized in accordance with the applicable regulations. An energy simulation was conducted to facilitate a comparative analysis of energy consumption and associate costs with each scenario. The discrepancy in heating and cooling capacity between the private and public was 26.8 kW and 5.1 kW, respectively. The results indicated that the consumption in the private unit was greater than that in the public unit, with a total of 406,013 kWh/year and 391,525 kWh/year, respectively. The annual operating cost of the private unit was 67 418,5 €, while that of the public unit was 65 012,7 €.
Description
Keywords
" Imagiologia AVAC Regulamentação Consumos energéticos Custos Imaging HVAC Regulation Energy consumption Costs"