Enedir Ghisi

Federal University of Santa Catarina | UFSC · Departamento de Engenharia Civil

Population increase, climate change and soil impermeability are factors causing floods in large urban centres. Such places also always have water shortage problems. This research aims to evaluate the influence of rainwater harvesting in residential buildings on stormwater in a basin located in southern Brazil (Rio Cachoeira Basin). Urbanised and no...

The objective of this study was to carry out the financial feasibility analysis of harvesting rainwater from permeable pavements in a city square. A case study was carried out in a square close to the beach in the city of Florianópolis, Brazil. Questionnaires were applied to pedestrians who circulate within the area. The square is to be implemented...

Residential rainwater harvesting (RWH) systems usually have long paybacks and high initial outlays. Studies determining these costs often adopt different conventions, leading to varying results. This study presents a comprehensive cost survey for installing and operating typical residential RWH systems in eight cities in Brazil. The study simulated...

Despite having abundant water sources, some Brazilian regions are likely to face water scarcity within the following decades. In this sense, rainwater harvesting (RWH) systems are considered viable solutions. This study evaluates the influence of rainfall time series indicators on the tank sizes, volumetric reliability and potential for potable wat...

Resumo Esta pesquisa teve como objetivo avaliar a relação entre produtividade autoavaliada e a temperatura operativa em edifícios híbridos e com sistema de ar-condicionado central na cidade de Florianópolis-SC. Os resultados mostraram diferentes comportamentos de usuários em cada edificação. Na edificação com sistema de ar-condicionado central, a p...

Os ganhos de calor externo de uma edificação decorrem, sobretudo, da radiação solar incidente em sua envoltória, em especial por meio dos vidros. Este estudo avalia o desempenho energético de edificações com o uso de vidros laminados e insulados em cinco cidades do Nordeste do Brasil. Uma sala típica de escritório foi modelada no software EnergyPlu...

Esta pesquisa teve como objetivo avaliar a relação entre produtividade autoavaliada e a temperatura operativa em edifícios híbridos e com sistema de ar-condicionado central na cidade de Florianópolis-SC. Os resultados mostraram diferentes comportamentos de usuários em cada edificação. Na edificação com sistema de ar-condicionado central, a produtiv...

Este trabalho teve como objetivo comparar a energia embutida (EE) associada com a fase pré-operacional de uma construção convencional nova (cenário 1) com a EE do retrofit de uma edificação existente incorporando cobertura verde, painéis fotovoltaicos, fachada verde e madeira laminada colada (cenário 2). Uma edificação comercial localizada em Curit...

Rainwater harvesting (RWH) systems are key solutions to improve water resource management in cities, and financial feasibility is essential for their diffusion. Moreover, studies about rainwater often adopt diverse design approaches, leading to incompatible results for direct comparison. This study introduces a categorised item-by-item outlay proce...

Asbestos has been used by automobile, construction, manufacturing, power, and chemical industries for many years due to its particular properties, i.e. high tensile strength, non-flammable, thermal and electrical resistance and stability, and chemical resistance. However, such a mineral causes harmful effects to human health, including different ty...

One of the main inequalities in Brazil is related to electricity access and distribution. On average, 99.7% of the population have access to some type of energy, varying from 99.1% to 99.9% among the Brazilian states. However, 600 thousand Brazilians still have no access to electricity. This paper aims to relate the distribution of electricity to s...

Construction and demolition (C&D) waste comes from engineering activities. In Brazil, thousands of tonnes of C&D waste are generated daily, and they are often clandestinely disposed of in vacant lots, riverbanks, and outskirts of cities. Most of the C&D waste generated in Brazilian cities could be fully recycled. This study aims to provide an outlo...

The feasibility of installing rainwater harvesting systems in buildings is usually defined based primarily on economic analysis. In this perspective, we reviewed the literature related to water consumption in buildings, rainwater use, and environmental assessment tools to evaluate the impact of rainwater harvesting on the environment. Identifying w...

As gender may influence thermal and air quality perception in indoor environments, the aim of this study was to analyse gender influence on air movement, air humidity, air quality and thermal perception in office buildings in Southern Brazil. Statistical descriptions, regression analyses and hypothesis tests were performed using data collected from...

Scientific literature about building occupants’ behaviour and the related energy performance analyses document about several strategies to monitor window operation, including different sensors and data series lengths. In this framework, the primary goal of this study is to propose effective guidelines for minimum experiment durations and their reli...

In this work, we investigated occupant’s thermal disposition in mixed-mode offices. Thermal disposition can be described as a person’s self-assessment of his/her own thermal sensitivity. Classic field studies on thermal comfort were conducted in mixed-mode offices located in Florianópolis (Brazil). Occupants manually controlled the mixed-mode strat...

Waste tyres discarded and accumulated in inadequate places represent a threat to the environment and public health. The problem related to the final disposal of such a solid waste occurs in every country in the world; thus, laws and standards that regulate, control, and assess solid waste management, such as waste tyres, are necessary. In Brazil, s...

p>Este estudo apresenta uma proposição de benchmarking estatístico do estoque de edificações escolares no Brasil. Informações de consumo de energia, área construída, número de alunos e localização (zona bioclimática) de 2.445 escolas foram utilizadas para se calcular indicadores de intensidade de uso de energia (EUI) em termos de área construída e...

The operation of buildings is significant among the human activities that withdraw water from nature, and evaluating the water efficiency of buildings is essential for sustainable development. Hence, this paper aims to assess the water efficiency in school buildings to identify benchmarks that could be used as targets in water-saving initiatives al...

Green roofs offer several environmental and social benefits to urban life. However, such roofs require a greater amount of materials than conventional roofs. The life cycle assessment (LCA) is an appropriate tool that has been used to obtain the potential environmental impacts associated with green roofs throughout their life cycle. This paper aims...

Water conservation is essential to sustainable development, and among human activities, buildings are responsible for a significant portion of total water consumption. Therefore, we present a systematic review that aims to search for valuable contributions from benchmarking and their potential significance to water conservation. The relevance of pe...

Energy benchmarking of buildings has an important role in improving energy performance by establishing a reference for the energy efficiency of the building stock. The simulation of archetypes followed by a generalisation model has been widely used to obtain benchmarks. However, even though archetypes summarise the main features of the building sto...

Energy benchmarking are used to compare the operational performance of buildings with the corresponding stock. Multi-criteria methods emerged to consider different factors in benchmarking assessment. However, there is a lack in considering occupants’ thermal satisfaction in methods based on actual data. The objective of this article is to propose a...

There is a growing concern about the scarcity of water resources due to the increase in the demand for potable water. A subject rarely addressed in the literature and with great potential for water savings is using stormwater in fire extinguishing systems. This work aims to evaluate the potential for using stormwater collected from a permeable pave...

Since people spend most of their time in indoor environments, the objective of this work was to study indoor air quality and its effects on users’ thermal comfort. Based on previous data from a building with a central air-conditioning system and two mixed-mode buildings located in the humid subtropical climate of Florianópolis, southern Brazil, sta...

RESUMO: Com o aumento da demanda por água potável, cresce a preocupação com a escassez de recursos hídricos. Assim, o uso racional da água tornou-se uma das atividades necessárias para economizar esse recurso. Um assunto pouco abordado na literatura e com grande potencial de economia de água é o uso de água pluvial em sistemas de combate a incêndio...

RESUMO: Em residências que possuem aquecedores de passagem a gás para o aquecimento da água, há desperdício de água no início da utilização dos aparelhos sanitários. O objetivo deste trabalho é verificar a viabilidade econômica ao implementar um sistema automatizado nos pontos de consumo de água quente das edificações que reduz o desperdício de águ...

Este estudo apresenta uma proposição de benchmarking estatístico do estoque de edificações escolares no Brasil. Informações de consumo de energia, área construída, número de alunos e localização (zona bioclimática) de 2.445 escolas foram utilizadas para se calcular indicadores de intensidade de uso de energia (EUI) em termos de área construída e nú...

O objetivo deste artigo é avaliar os comportamentos adaptativos de usuários de escritórios em resposta às sensações de desconforto por calor e por frio. Um questionário foi aplicado a funcionários da Universidade Federal de Santa Catarina, que trabalham em ambientes de escritórios, e utilizado como base para as análises. Abordagens probabilísticas...

A construção e operação de edifícios é responsável por aproximadamente 36% do uso final global de energia e quase 40% das emissões de dióxido de carbono relacionadas à geração de energia. Sabe-se que todas as fases de uma edificação (desde a extração das matérias primas até a disposição final) contribuem com o consumo energético. Dessa forma, estud...

Permeable pavements have been the subject of numerous studies in recent decades. The possibility of dissipating stormwater more smoothly and generating numerous benefits to the environment and users makes the use of permeable pavements an excellent possibility of integration into sustainable and resilient water management systems in cities. In Braz...

As coberturas verdes são estruturas que permitem melhorar o desempenho térmico edificações, reduzindo o consumo de energia utilizada por sistemas mecânicos de condicionamento térmico. Em regiões tropicais, que são expostas à intensa radiação solar e onde é significativa a demanda de energia por resfriamento, a redução do ganho térmico através da co...

This study aimed to investigate future energy benchmarks for the school building stock in Brazil, considering the gradual implementation of air-conditioning systems in those buildings and the influence of future climate conditions. Archetypes were simulated using EnergyPlus for four cities in Brazil, representing predominant weather data in the cou...

Permeable pavements have been the subject of numerous studies in recent decades. The possibility of dissipating stormwater more smoothly and generating numerous benefits to the environment and users makes the use of permeable pavements an excellent possibility of integration into sustainable and resilient water management systems in cities. In Braz...

Bottom-up energy benchmarking methods use simulation of reference buildings to reproduce the building stock performance. Regressive methods using those simulated outcomes are employed to obtain typical energy performance values according to certain parameters to make the benchmarking a fair comparison. Those parameters are commonly related to the b...

Occupant behaviour in buildings is a point of interest for building designers around the world. Functional buildings have a significant energy demand; therefore, improving the thermal and energy performance of such buildings requires knowledge about the variables that influence them. However, to increase the potential for improving thermal and ener...

A identificação dos usos finais de água é fundamental para a determinação de estratégias que visem o controle de demanda de água tratada. Este estudo tem como objetivo caracterizar os usos finais de água e investigar o potencial de economia de água potável através da utilização de água da chuva em uma residência unifamiliar localizada em Caçador, S...

The literature emphasises the important role that occupants play regarding the energy performance of buildings. Scholars have applied several methods to assess occupants’ preferences and practices in their field studies. Technological innovations such as Internet-of-Things (IoT) may capture valuable objective information that can be translated into...

The main objective of this work is to analyse the potential for potable water savings in university buildings by using stormwater collected from permeable pavements. Six buildings located on the campus of the Federal University of Santa Catarina (UFSC) were selected to obtain monthly water consumption patterns and parking lot areas. The same six bu...

In flats where there are gas water heaters, there is waste of water at the beginning of a shower due to the large lengths of pipes between the showerheads and heater. This paper analyses the financial feasibility of implementing an automated system that saves such water. This paper also shows how the system prevents such waste. In six flats, by col...

Since people spend most of their time in indoor environments, the objective of this work was to study indoor air quality perception and its effects on users’ thermal comfort. Based on previous data from a building with a central air-conditioning system and two mixed-mode buildings located in the humid subtropical climate of Florianópolis, southern...

Occupants’ behaviour is one of the most important factors to impact on indoor building environments and energy use[1]. Studies have shown that there is a gap between predicted and actual energy use due to poor consideration of the occupants’ behaviour[2,4]. The objective of this study is to improve understanding of occupants’ behavior and describe...

Indoor environmental quality, socio-psychological aspects, as well as contextual and personal factors, can be considered as multi-domain drivers for occupant behaviour (OB). Therefore, this study relies on a survey that bridges the gap between building physics and social psychology to implement an interdisciplinary framework into OB research. A cas...

The objective of this study is to investigate the capabilities of different global sensitivity analysis methods applied to building performance simulation, i.e. Morris, Monte Carlo, Design of Experiments, and Sobol methods. A single-zone commercial building located in Florianópolis, southern Brazil, was used as a case study. Fifteen inputs related...

This study evaluates the influence of environmental variables on users’ thermal comfort and air quality perception in the humid subtropical climate of Florianópolis, southern Brazil. A building with central air-conditioning system and three mixed-mode buildings, which alternated between natural ventilation and air-conditioning modes, were investiga...

This study aimed to evaluate the installation of a system that combines rainwater to wash clothes and greywater to flush toilets in a house located in Florianópolis, southern Brazil. The evaluation consisted of determining the potable water savings, performing a financial analysis, and verifying the possibility of using rainwater and reusing greywa...

The objective of this paper was to assess the potential for potable water savings due to rainwater use in a precast concrete factory in southern Brazil. The economic feasibility and the rainwater quality were also assessed. The current water consumption, future water demand, and rainwater demand in the factory were estimated. The future demand cons...

RESUMO Sabe-se que as pessoas passam a maior parte do tempo em ambientes internos, cuja qualidade do ar pode influenciar positiva ou negativamente o desempenho e a saúde dos ocupantes. Assim, o objetivo deste estudo foi avaliar a percepção da qualidade do ar pelos usuários e a concentração de CO2 no interior de três edificações de escritórios em Fl...

A literatura evidencia a influência do comportamento de usuários no desempenho energético de edificações, bem como o impacto do gênero na percepção da qualidade ambiental interna. Este artigo avalia a influência do gênero dos ocupantes nos principais motivos para ajustar janelas, persianas, aparelhos de ar-condicionado e iluminação em escritórios....

O objetivo deste trabalho é avaliar o desempenho de um sistema de aproveitamento de água pluvial em uma edificação escolar. Foram comparados os consumos de água potável de um ano antes e um ano depois da implantação do sistema. Além disso, o sistema implantado foi simulado utilizando o programa Netuno considerando os dados pluviométricos do ano de...

Avaliar o desempenho energético operacional é importante para conhecer o uso de energia nas edificações e proporcionar estratégias de eficiência energética baseadas na realidade. Este artigo apresenta uma análise do desempenho energético de um estoque de escolas com base nas faturas de energia, área construída e ocupação. Os dados foram fornecidos...

O objetivo deste trabalho é analisar a influência das características térmicas no desempenho térmico de habitações de interesse social em Florianópolis. Foram considerados quatro tipos de parede, três tipos de esquadria e três tipos de cobertura. A temperatura operativa foi obtida por meio de simulação computacional realizada no EnergyPlus e as hor...

The objective of this paper is to assess the potential for potable water savings due to rainwater use in a precast concrete factory in southern Brazil. The economic feasibility and the rainwater quality were also assessed. The current water consumption, future water demand and rainwater demand in the factory were estimated. The future demand consid...

In homes that have instantaneous gas heaters to heat water, cold water is wasted in the first seconds of using hot water fixtures. This waste is caused due to the large lengths of piping between the hot water fixtures and the heater that feeds them. The water in such pipes suffers thermal losses over time. When turning on the fixtures, this drinkin...

Recent years have seen considerable interest amongst building professionals and researchers in describing occupant behaviour. This has led to the development of models of adaptive behaviour to improve the accuracy and realism of building energy and indoor environment simulations. The objective of this study was to go beyond the typical behaviour mo...

This paper presents a case study on the economic feasibility analysis of rainwater harvesting in single-family houses located in Imbituba, Brazil. A base case scenario was chosen and 108 scenarios were evaluated considering different roof areas, number of residents, potable water and rainwater demands. All scenarios were assessed by means of comput...

Nos últimos dez anos, o setor de habitações de interesse social (HIS) no Brasil foi impulsionado pela criação do Programa “Minha Casa, Minha Vida” (PMCMV). Apesar do Programa ter permitido a construção de grande quantidade de habitações em todo o território nacional, avaliações em campo ressaltam falhas quanto à adequação das habitações aos climas...

A influência do comportamento dos usuários no desempenho termoenergético e lumínico de edificações vem sendo discutida na literatura. Em relação aos ajustes de elementos internos de sombreamento não automatizados em escritórios, cabe ao usuário administrar o balanço entre o aproveitamento de iluminação natural e a redução de radiação solar. Desta f...

O objetivo deste trabalho é avaliar o potencial de economia de água potável por meio do aproveitamento de água pluvial em um condomínio multifamiliar localizado na cidade de Matão – SP. Foram analisados diferentes cenários, ou seja, demandas de água pluvial iguais a 10%, 25% e 45% da demanda total de água, demandas de água iguais a 100, 150 e 200 l...

O objetivo desta pesquisa é avaliar a adequação da iluminação de um laboratório de pesquisa da Universidade Federal de Santa Catarina a partir de medições de luminâncias e iluminâncias e da obtenção das percepções subjetivas dos ocupantes. O método aplicado combina o procedimento de medição e verificação de níveis mínimos de iluminância propostos p...

While rainwater harvesting can provide additional water resources, this approach is largely undertaken using water from roofs. More recently, the potential for using stormwater harvested from permeable pavements was recognised as a potential additional water resource. The objective of this study was to estimate the reduction of environmental impact...

Resumo uando um componente construtivo é selecionado para melhorar o desempenho da edificação ao longo de sua operação, deve-se verificar o seu impacto ao longo de todo o ciclo de vida para assegurar a redução dos impactos ambientais. Dessa forma, o objetivo principal deste trabalho foi selecionar o conjunto de componentes construtivos com menor im...

O conforto térmico apresenta elevada importância para a conservação de energia em edificações, bem como para a satisfação e o desempenho dos usuários. O principal objetivo deste trabalho é avaliar o efeito da umidade do ar no conforto térmico de usuários de edificações de escritórios localizadas no clima subtropical úmido de Florianópolis/SC. Com b...