Fatima A. M. Lino

Fatima A. M. Lino
University of Campinas | UNICAMP · Lab. Of termal Storage and heat pipe

PhD

About

85
Publications
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615
Citations

Publications

Publications (85)
Article
Latent heat materials are widely investigated and successfully used in a variety of important applications as in the building industry and thermal engineering systems. In this paper a comprehensive review on phase change material (PCM) in relatively recent potential application such as photovoltaic (PV) panel cooling, applications in food, automoti...
Article
Full-text available
This investigation shows the results of a coupled numerical and experimental study on the solidification and melting of spherical capsules and the development of correlations for solidification time and melting time with parameters that impact the complete phase change time of nanofluids and water with and without polyethylene glycol inside plastic...
Article
The present study is focused on investigating experimentally and numerically of four versions of a concentric double tube solar collector with and without vacuum and with and without a reflective solar film. The conservation equations were used to formulate the thermal model and treated numerically to develop a home-made numerical code in MATLAB. A...
Conference Paper
The energy storage in the phase change material, such as water, is a well-accepted technology and is expanding in several engineering and building applications. In this study, a thermal model based on pure conduction to describe the solidification process in a parallel plate storage system is developed. For the solution of this model, the governing...
Conference Paper
Ice banks are relevant in balancing the demand for electricity because they accumulate energy in the form of cold during off-peak periods to be used later during periods of high consumption, especially during p energy accumulation in the phase change material, in these cases water, is a well expanding in several fields of engineering and building a...
Article
The present experimental study is dedicated to investigate ventilated windows with and without reflective film for hot climate applications. The experimental findings are used to validate a thermal model and its numerical code developed in a previous study and also to validate developed correlations for predicting the windows thermal performance. T...
Article
Latent heat thermal energy storage (LHTES) is a widely accepted technology because of its high energy density at nearly constant operating temperature. The main disadvantage of LHTES is the low thermal conductivity of the storage material, which affects the charging and discharging rates. Therefore, various methods have been used for enhancement of...
Conference Paper
In this work, the thermal efficiencies of double glass window filled air with reflective film is compared with both a simple glass window and a double glass window naturally ventilated. A test rig was constructed and instrumented to use for testing the proposed double glass. To model the double glass window, a two-dimensional transient laminar inco...
Article
Small wind turbines usually suffer from poor efficincy, low power and lack of public incentives. This study is focused on investigating the effects of the geometry of the airfoil sections and blades on the starting torque and minimum wind speed for energy generation. The Blade Element Momentum Theory is used to develop a numerical code where the ai...
Article
Heating and cooling of buildings is responsible for almost 40% of the electricity demand and about 33% of greenhouse gas emissions. Because of the global energy and environment critical situation, there is a need to improve the energy efficiency of buildings and make them more sustainable. The main objective of the present study is to investigate t...
Article
A conduction model is developed to describe the phase change between the plates of a thermal storage system. The diffusion equation and the associated boundary, initial, and interface conditions are approximated numerically by finite differences and implicit approach with variable time-step. The developed computational code is validated against dat...
Article
This paper reports the results of a comparative study on a low concentration eccentric evacuated tube solar collector with two different absorber tubes of circular and rectangular cross sections. The two arrangements are intended for flow through applications although the collector with rectangular section can be adapted for PV applications. The go...
Article
Full-text available
This paper reports the results of a comparative study on a low concentration eccentric evacuated tube solar collector 10 with two different absorber tubes of circular and rectangular cross-sections. The two arrangements are intended for flow 11 through applications although the collector with rectangular section can be adapted for PV applications....
Article
Phase change materials (PCMs) are well accepted as excellent candidates for thermal energy storage and many other important applications. One of their main drawbacks is the poor thermal conductivity which impairs their thermal performance. Many methods were proposed to solve this problem among which fins and nano-PCMs occupy leading positions in te...
Article
This investigation is focused on assessing the thermal performance of a ventilated double-glass reversible window with reflective film for building applications. The window is composed of two glass sheets separated by a gap forming a channel. One glass sheet faces the external environment while the second glass sheet faces the internal environment....
Article
This paper presents the results of a study on the enhancement of solidification around finned tubes and the development of correlations to predict their thermal performance. The effects of the geometrical and operational parameters on the solidification process and thermal performance are investigated. A numerical code to predict the solidification...
Article
The low thermal conductivity of PCM is a discouraging factor for its wide application. A variety of techniques are investigated to improve the thermal conductivity of PCM including dispersing metallic powders, wires, meshes and fins into PCM. Fins are most preferred because of their simplicity and efficiency. This paper reports the results of a num...
Article
The high cost and poor performance of small wind turbines make them not widely used. In an attempt to meliorate this situation, the authors propose to investigate alternative airfoils with different chord and pitch angle distributions that permit low manufacturing, installation and maintenance costs, as well as high efficiency. To achieve these goa...
Article
The high cost and poor performance of small wind turbines make them not widely used. In an attempt to meliorate this situation the authors propose to investigate alternative airfoils with different chord and pitch angle distributions that permit low manufacturing, installation and maintenance costs as well as high efficiency. To achieve these goals...
Article
Experimental correlations for phase change around finned tubes submersed in PCM are scarce in the literature. These correlations are useful for validation of numerical models and simulations as well as for predicting the performance of storage systems. The objective of this study is to develop correlations for axially finned tubes to predict the ef...
Article
This paper reports the results of an experimental investigation on the solidification of phase change material (PCM) around a vertical finned tube. The objective is to assess the enhancing effects of the geometrical and operational parameters on the phase change process. The number of fins, fin width, tube wall temperature and mass flow rate of the...
Article
This paper reports the results of a study to investigate and develop correlations for the parameters affecting the time for complete solidification and fusion in spherical shells. For this study, four spherical shells of 35, 76, 106 and 131 mm diameter were used, the charging temperature was varied from −20°C to −5°C while the melting temperature v...
Article
In the present study, the thermal behavior of a ventilated double glass window with a solar reflective film is numerically investigated and validated against results available in the literature. The objectives of the study are to develop a validated robust thermal model for the ventilated double glass window, make it versatile so that it can incorp...
Chapter
Climatic changes and global warming resulting from production and utilization of fossil fuels and other human activities accelerated research to replace effectively fossil fuels. Wind energy appears at the top of the list of the viable candidates to reduce dependence on fossil fuels. The technology for large and medium wind turbines is well dominat...
Conference Paper
The climatic changes, global heating and the associated drastic changes obliged the decision makers to establish policies to reduce ambient aggressions and offensive greenhouse gases (GHG). Intensive research and developments were and still dedicated to reduce GHG emissions and provide sustainable alternative energy sources to the world. Wind energ...
Conference Paper
Collection and treatment of urban solid waste and domestic sewage are essential sanitary services for the population, but in many countries as Brazil these services are defficient. In São Luís-MA, municipality with more than one million inhabitants are generated about 414 thousands ton/year of municipal solid waste and about 190 million cubic meter...
Conference Paper
Phase change materials are occupying a leading position in many applications especially in energy storage, thermal insulation and many other applications. Although most preferred among other thermal storage materials because of their high capacity for energy storage and nearly isothermal behavior during charging and discharging processes they are p...
Article
Treatment and final destination of municipal solid waste (MSW) in Brazil has been a problem waiting for solution to alleviate environmental and public health negative impacts, since almost all MSW collected is dumped in landfills and open and covered dumps. Specifically in Campinas, a metropolis with more of one million inhabitants , the local land...
Conference Paper
Climatic changes and global warming resulting from production and utilization of fossil fuels and other human activities accelerated research to replace effectively fossil fuels. Wind energy appears at the top of the list of the viable candidates to reduce dependence on fossil fuels. The technology for large and medium wind turbines is well dominat...
Article
Thermal comfort in buildings, offices and residences is of extreme importance especially in very cold and very hot regions. Usually this mismatch between the human necessities and the ambient conditions was solved by artificial heating and cooling where fossil based energy is used to accomplish this desired comfort. This practice led serious proble...
Article
Small wind turbines are mainly used in rural areas, farms and isolated communities. These machines are supposed to be able to work within a wide range of wind speeds and usually are not equipped with pitching control mechanisms. The main objective of this study is to investigate Joukowski airfoil as an alternative for use in small power windmills (...
Conference Paper
Full-text available
The challenge of this century is to find new sustainable energy sources that impact less the environment during generation and utilization. Solar and wind energy appear at the top of the list of renewable energies of high potential, widely available, of dominated technology and well accepted. Thermal comfort and hot water are responsible for the di...
Article
One of the biggest challenges for developing countries such as Brazil is the adequate management of urban solid waste. In Campinas, the third-largest city in the state of São Paulo with population over one million inhabitants, the treatment of solid waste turned to be a serious problem since 2014. The daily collection of municipal solid waste (MSW)...
Conference Paper
Full-text available
Wind energy is one of the most viable options for sustainable energy production. The technology for large and medium power windmills is well dominated and many wind farms of the types onshore and offshore are in operation in many countries. Small windmills for off grid operation and/or for energy production in isolated areas need more incentives in...
Article
With the increase of the world population, urbanization and industrialization, the volume of generated municipal solid waste (MSW) has increased and creating a challenge problem for public authorities mainly in developing countries. Most of these countries are still disposing MSW in dumpsites. Without adequately treatment, MSW causes damage to the...
Conference Paper
Full-text available
The concept of storage of energy can have a positive impact on greenhouse–gas emissions. The urgent need to control greenhouse–gas emissions and better use of energy and other resources can boost up and extend the applicability of energy storage to other areas. Phase change materials (PCMs) are the most attractive thermal energy storage media due t...
Article
With the increase of the world population, urbanization and industrialization, the volume of generated municipal solid waste (MSW) has increased and creating a challenge problem for public authorities mainly in developing countries. Most of these countries are still disposing MSW in dumpsites. Without adequately treatment, MSW causes damage to the...
Article
Solar concentrators of small concentration ratio are attractive options for working temperatures around 120oC where the heat can be used for a number of applications such as air conditioning space heating and of course hot water. In this study a model for solar concentrator with heat pipe absorber enveloped by an evacuated glass tube is developed....
Article
Full-text available
Phase change materials although attaractive option for thermal storage applications its main drawback is the slow thermal response during charging and discharging processes due to their low thermal conductivity. The present study validates a model developed by the authors some years ago on radial fins as a method to meliorate the thermal performanc...
Conference Paper
Phase change materials (PCMs) are attractive options as thermal energy storage media due to their reduced storage volume and isothermal behavior during charging and discharging processes. Their main drawback is the slow thermal response due to the low thermal conductivity. Various methods for PCM thermal conductivity enhancement have been investiga...
Article
Full-text available
Phase change materials are being used for energy storage, thermal insulation of buildings and equipments due to their high storage capacity and isothermal behavior during the phase change processes. Their low thermal conductivity is a limiting factor for possible wider range of applications. The present study has the objective of investigating fins...
Conference Paper
Full-text available
The objective of this work is to investigate the parameters affecting the time for complete solidification and fusion in spherical capsules and develop correlations between this time and the investigated parameters. These correlations will be used in the numerical simulations of latent heat storage systems of the fixed bed type having the phase cha...
Conference Paper
Full-text available
Phase change materials (PCMs) are the most attractive thermal energy storage media due to their reduced storage volume and isothermal behavior during charging and discharging processes. Their main drawback is the slow thermal response due to the low thermal conductivity. Various methods for PCM thermal conductivity enhancement have been investigate...
Article
Full-text available
Phase change materials (PCMs) are the most attractive thermal energy storage media due to their reduced storage volume and isothermal behavior during charging and discharging processes. Their main drawback is the slow thermal response due to the low thermal conductivity. Various methods for PCM thermal conductivity enhancement have been investigate...
Article
Windows are essential elements for the building esthetic aspect while permitting contact with the external ambient but contribute much to the thermal losses and solar heat gain. The recent tendencies to reduce wastes, preservation of the ambient and conservation of energy, urged research efforts to enhance window thermal performance while maintain...
Article
Full-text available
In hot and tropical countries external walls and roofs receive solar radiation absorbing part of it and transmitting a substantial part to the internal ambient provoking thermal discomfort. In cold climate heat is usually lost to the external ambient and again causing thermal discomfort. In both cases the thermal energy load is increased. For these...
Article
Full-text available
This paper presents the results of an investigation on axially finned tubes to enhance the processes of charging and discharging thermal storage units. The proposed model is based upon pure conduction in the solid and liquid phases. The enthalpy approach and the finite volume method were used in the numerical treatment. The Alternating Direction Im...
Article
Full-text available
Isolated areas in Brazil are usually served by diesel based electricity supply. The diesel fuel is usually transported by river to these isolated communities. During dry, wet seasons and inundations the transport is very risky and not usually safe. As a result the communities have to manage without electricity. To guarantee access of these communit...
Article
Full-text available
This paper presents the results of a numerical study on internally and externally finned annulus in which the internal tube has external fins while the external tube has internal fins. This arrangement is investigated with the objective of increasing the heat transfer rate, reducing the time for complete phase change and allowing for simultaneous c...
Article
Full-text available
Depositing municipal solid waste (MSW) in dumps has provoked serious impacts in Brazil in the last decades because of the gas and liquid effluents which contaminate the soil and underground water resources in addition to emitting greenhouse gases (GHG) to the atmosphere. To mitigate these impacts, this paper presents proposals for treatment of soli...
Article
Full-text available
This paper presents the results of a numerical study on the solidification of PCM around a bent tube with a cooling fluid flow inside it. The proposed model is based on the two-dimensional energy and momentum equations. The Landau interface immobilization technique is used to immobilize the solid-liquid interface, while the finite volume method is...
Article
Full-text available
This paper presents the results of a study to develop a fast calculation routine which enables the prediction of the frost layer growth and the deposition velocity in terms of the surface temperature of the cold body, the rate of flow of the humid air and the rate of flow heat transfer and mass transfer equation for the flow of wet air around a cir...
Article
Full-text available
This paper presents the results of a study to develop a fast calculation routine which enables the prediction of the frost layer growth and the deposition velocity in terms of the surface temperature of the cold body, the rate of flow of the humid air and the rate of flow heat transfer and mass transfer equation for the flow of wet air around a cir...
Article
Abstract:This paper presents the results of a study to develop a fast calculation routine which enables the prediction of the frost layer growth and the deposition velocity in terms of the surface temperature of the cold body, the rate of flow of the humid air and the rate of flow heat transfer and mass transfer equation for the flow of wet air aro...
Article
Full-text available
Dumping municipal solid waste and domestic sewage is common practice in most developing countries offering risks to public health and to the ecosystem. In Belem, Brazil, which is an important metropolis, this is a serious problem. As a contribution, this paper proposes treatment of municipal solid waste and domestic sewage by recycling, landfilling...
Article
Full-text available
Collection and treatment of urban solid waste and domestic sewage are essential sanitary services for the population, but in many countries as Brazil these services are defficient. In São Luís-MA, municipality with more than one million inhabitants are generated about 414 thousands ton/year of municipal solid waste and about 190 million cubic meter...
Thesis
Proposta de aproveitamento do potencial energético do resíduo sólido urbano e do esgoto doméstico com minimização dos impactos ambientais
Article
This paper presents the results of a numerical study validated by experimental measurements on the solidification of PCM along a horizontal tube by using the boundary immobilization technique. The two dimensional model (r,z) of the phase change problem is formulated based on the energy equation and the Landau transform which transforms the moving i...
Article
Full-text available
This paper presents the results of an experimental study on the solidification along a long horizontal tube submersed in liquid phase change material (PCM) and the enhancements due to the use of a turbulence promoter. The experimental rig consists of a long copper tube fixed coaxially inside a larger PVC tube filled with liquid PCM (water). The wor...
Article
Full-text available
Assessment of renewable energy and emissions from domestic sewage treatment in Brazil
Article
The climatic changes provoked by the emissions of the greenhouse effect gases urged the United Nations to create a document containing eight goals called “Millennium Development Goals” to be achieved until 2015. One of these goals is the MDG7, refers to the sustainability of the planet. Recycling the household solid waste is an additional effort in...
Article
Full-text available
This paper proposes the selective collection and recycling as alternative ways to promote the social inclusion in Brazil and help the country to eradicate extreme poverty and misery and achieve the first of the Millennium Development Goals (MDG1) of the UN. This work is based on the data from a Brazilian metropolitan city of Campinas and is extende...
Article
Full-text available
This paper presents an evaluation of the recycling as a mechanism that can promote the social inclusion in Brazil. The analysis is based on the data from a Brazilian metropolitan, city of Campinas and is extended to Brazil. The results show that the municipality of Campinas collects monthly 8000 tons of recyclables, which if recycled can avail jobs...
Article
This paper presents the results of an experimental and numerical investigation on the solidification of PCM around a curved cold tube to determine the effects of the Dean number, cooling fluid flow rate and its temperature on the interface velocity, the time for complete solidification and the solidified mass. To formulate the solidification proces...
Article
This paper presents the results of an experimental and numerical investigation on the solidification of PCM around a curved cold tube to determine the effects of the Dean number, cooling fluid flow rate and its temperature on the interface velocity, the time for complete solidification and the solidified mass. To formulate the solidification proces...
Article
One of the serious problems associated with the operation of PCM storage system is the heat transfer in and out of the element containing the PCM. This paper presents the results of an experimental investigation of the effects of radial fins and turbulence promoters on the enhancement of phase change heat transfer external to a horizontal tube subm...
Article
The economic progress and sustainable developments are linked to the optimization and energy conservation. Conventional methods of production and energy utilization usually embed harmful environmental impacts, and hence the challenge to scientists to seek for mechanisms of energy production and use which are less harmful or better still free of unf...
Article
The inclusion of selective collection of urban residual solids in the public policies is an issue adopted by many countries as a mean for reducing the impacts created by solid waste generation and destination. In Brazil, the selective collection of solid waste was implemented in Campinas, in 1991. The city is the third biggest in the state of São P...
Conference Paper
Full-text available
Instalação de aquecedores solares de água em residências de baixa renda: estudo de caso
Conference Paper
Full-text available
Energy impact of solid waste recyclables in Campinas