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Papers by Aldo Fanchiotti

Research paper thumbnail of Energy System Feasibility of a High Efficient Building

Applied Mechanics and Materials, 2015

ABSTRACT World population is steadily increasing and it is estimated to reach 9 billion in 2050. ... more ABSTRACT World population is steadily increasing and it is estimated to reach 9 billion in 2050. Moreover, 72% of people live in big cities and the buildings energy requirement is growing, reaching the 45% of the total energy amount. This paper presents of a building energy efficient properly designed to realize a solar-powered house that is cost-effective, energy-efficient, and attractive. The study applied a methodology which is able to identify the best building plant configuration under a technical, economical and environmental point of view. It has been demonstrated that the proposed plant allows to reduce the fossil fuels consumption compared to a plant conventionally employed, with a proportional reduction of the greenhouse gas emissions of about 30% per year.

Research paper thumbnail of Energy Retrofit of Historical Buildings Based on Windowed Elements

Applied Mechanics and Materials, 2015

ABSTRACT The study of the building energy performance is based on simplified procedures that esti... more ABSTRACT The study of the building energy performance is based on simplified procedures that estimates the energy demand using monthly values of environmental parameters. It is well known that it is possible to use advanced dynamic softwares able to analyze the real building’s behavior along time. For this reason in this study a historical building energy retrofit has been performed through a dynamic software considering the influence of different kind of windowed elements on the annual energy demand. Four simulations, taking into account transparent elements characterized by progressively improved properties of thermal transmittance and solar gain factor, have been performed. The results obtained have been analyzed and compared.

Research paper thumbnail of Linear, Non-Linear and Alternative Algorithms in the Correlation of IEQ Factors with Global Comfort: A Case Study

Research paper thumbnail of Paper No 314: Optical properties and influence of reflective coatings on the energy demand and thermal comfort in dwellings at Mediterranean latitudes

Climatic conditions affect shape, colour, geometry and lay-out of buildings. The vernacular Medit... more Climatic conditions affect shape, colour, geometry and lay-out of buildings. The vernacular Mediterranean architecture was characterised, among other passive techniques, by light colours to minimise solar gains through the opaque components of the building envelope. Actual building design and construction often forget such old bioclimatic approaches, delegating the comfort conditions to artificial systems. The energy consumption increase in the residential

Research paper thumbnail of An Integrated Approach for an Historical Buildings Energy Analysis in a Smart Cities Perspective

Energy Procedia, 2014

Currently, the study of the energy performance of buildings is based on a simplified calculation ... more Currently, the study of the energy performance of buildings is based on a simplified calculation that estimates the thermal loads using monthly or seasonal average outdoor temperatures. In addition, the employed software require technical data such as the specific heat capacity of materials, but at the same time they are not able to properly consider the thermal inertia of buildings. The more precise evaluation allows to assess the correct interventions for energy requalification under a smart cities perspective. This study was performed considering a stationary software (Aermec MC11300) and a dynamic software (TRNSYS). Three simulations considering transparent elements characterized by progressively improved properties of thermal transmittance and solar gain factor have been performed. It has been performed a comparison between the outputs of the two software in order to highlight the different ways of evaluating the energy contributions on thermal loads. Finally, the models were validated by means of an in-situ measurement campaign using a heat flow meter -in order to measure the thermal transmittance of the opaque wallsand a thermographic camera. This modus operandi allowed to appreciate how the use of a dynamic software is more appropriate to deal with the inertial properties of the structure to calculate in a more detailed way the annual thermal loads and to obtain more information on individual heating zones.

Research paper thumbnail of Bus for Urban Public Transport: Energy Performance Optimization

Energy Procedia, 2014

Nowadays many people use public transports in urban centers. Consequently, every day a lot of bus... more Nowadays many people use public transports in urban centers. Consequently, every day a lot of buses move within cities, trying to ensure the best service to citizens. During the year buses become crowded places and using an air conditioning system in constant operation, it tries to ensure a certain condition of comfort for the passengers on board. The aim of this study is to analyze and optimize the energy performance of a bus shell, identifying practical solutions have not yet been adopted in order to reduce the impact of air conditioning on bus' consumption and, therefore, on air pollution. For this reason it was decided to conduct a thermal analysis of a bus for public transport, in order to understand the behavior of the bus shell and to deduce possible optimization measures that have not yet been made until now. The analysis was carried out considering the hottest day of July and the coldest day of January, considering the operating conditions based on the most common graphics TGM (Average Daily Traffic) able to define the concentration of traffic city during the 24 hours per day. The study was done using the dynamic simulation software TRNSYS. With this software it was possible to recreate faithfully the structure of the bus and the external environmental conditions, assessing the impact of different technical solutions for an improvement of internal conditions and a reduction of the cooling capacity required. As the presence of passengers on public transport are considered like a "benefit" during the winter, the analysis is started with the identification of a summer solution and the subsequent evaluation of this solution for the winter time. The aim of this study was to optimize the bus shell and select the most appropriate solutions. Regarding the transparent surfaces it has been given importance to factors such as the thermal transmittance and the solar gain factor (g-value). Aware of the influence given by the solar radiation on the energy loads, bus energy performance were simulated also considering different types of paintwork with high reflectance.

Research paper thumbnail of Energy System Feasibility of a High Efficient Building

Applied Mechanics and Materials, 2015

ABSTRACT World population is steadily increasing and it is estimated to reach 9 billion in 2050. ... more ABSTRACT World population is steadily increasing and it is estimated to reach 9 billion in 2050. Moreover, 72% of people live in big cities and the buildings energy requirement is growing, reaching the 45% of the total energy amount. This paper presents of a building energy efficient properly designed to realize a solar-powered house that is cost-effective, energy-efficient, and attractive. The study applied a methodology which is able to identify the best building plant configuration under a technical, economical and environmental point of view. It has been demonstrated that the proposed plant allows to reduce the fossil fuels consumption compared to a plant conventionally employed, with a proportional reduction of the greenhouse gas emissions of about 30% per year.

Research paper thumbnail of Energy Retrofit of Historical Buildings Based on Windowed Elements

Applied Mechanics and Materials, 2015

ABSTRACT The study of the building energy performance is based on simplified procedures that esti... more ABSTRACT The study of the building energy performance is based on simplified procedures that estimates the energy demand using monthly values of environmental parameters. It is well known that it is possible to use advanced dynamic softwares able to analyze the real building’s behavior along time. For this reason in this study a historical building energy retrofit has been performed through a dynamic software considering the influence of different kind of windowed elements on the annual energy demand. Four simulations, taking into account transparent elements characterized by progressively improved properties of thermal transmittance and solar gain factor, have been performed. The results obtained have been analyzed and compared.

Research paper thumbnail of Linear, Non-Linear and Alternative Algorithms in the Correlation of IEQ Factors with Global Comfort: A Case Study

Research paper thumbnail of Paper No 314: Optical properties and influence of reflective coatings on the energy demand and thermal comfort in dwellings at Mediterranean latitudes

Climatic conditions affect shape, colour, geometry and lay-out of buildings. The vernacular Medit... more Climatic conditions affect shape, colour, geometry and lay-out of buildings. The vernacular Mediterranean architecture was characterised, among other passive techniques, by light colours to minimise solar gains through the opaque components of the building envelope. Actual building design and construction often forget such old bioclimatic approaches, delegating the comfort conditions to artificial systems. The energy consumption increase in the residential

Research paper thumbnail of An Integrated Approach for an Historical Buildings Energy Analysis in a Smart Cities Perspective

Energy Procedia, 2014

Currently, the study of the energy performance of buildings is based on a simplified calculation ... more Currently, the study of the energy performance of buildings is based on a simplified calculation that estimates the thermal loads using monthly or seasonal average outdoor temperatures. In addition, the employed software require technical data such as the specific heat capacity of materials, but at the same time they are not able to properly consider the thermal inertia of buildings. The more precise evaluation allows to assess the correct interventions for energy requalification under a smart cities perspective. This study was performed considering a stationary software (Aermec MC11300) and a dynamic software (TRNSYS). Three simulations considering transparent elements characterized by progressively improved properties of thermal transmittance and solar gain factor have been performed. It has been performed a comparison between the outputs of the two software in order to highlight the different ways of evaluating the energy contributions on thermal loads. Finally, the models were validated by means of an in-situ measurement campaign using a heat flow meter -in order to measure the thermal transmittance of the opaque wallsand a thermographic camera. This modus operandi allowed to appreciate how the use of a dynamic software is more appropriate to deal with the inertial properties of the structure to calculate in a more detailed way the annual thermal loads and to obtain more information on individual heating zones.

Research paper thumbnail of Bus for Urban Public Transport: Energy Performance Optimization

Energy Procedia, 2014

Nowadays many people use public transports in urban centers. Consequently, every day a lot of bus... more Nowadays many people use public transports in urban centers. Consequently, every day a lot of buses move within cities, trying to ensure the best service to citizens. During the year buses become crowded places and using an air conditioning system in constant operation, it tries to ensure a certain condition of comfort for the passengers on board. The aim of this study is to analyze and optimize the energy performance of a bus shell, identifying practical solutions have not yet been adopted in order to reduce the impact of air conditioning on bus' consumption and, therefore, on air pollution. For this reason it was decided to conduct a thermal analysis of a bus for public transport, in order to understand the behavior of the bus shell and to deduce possible optimization measures that have not yet been made until now. The analysis was carried out considering the hottest day of July and the coldest day of January, considering the operating conditions based on the most common graphics TGM (Average Daily Traffic) able to define the concentration of traffic city during the 24 hours per day. The study was done using the dynamic simulation software TRNSYS. With this software it was possible to recreate faithfully the structure of the bus and the external environmental conditions, assessing the impact of different technical solutions for an improvement of internal conditions and a reduction of the cooling capacity required. As the presence of passengers on public transport are considered like a "benefit" during the winter, the analysis is started with the identification of a summer solution and the subsequent evaluation of this solution for the winter time. The aim of this study was to optimize the bus shell and select the most appropriate solutions. Regarding the transparent surfaces it has been given importance to factors such as the thermal transmittance and the solar gain factor (g-value). Aware of the influence given by the solar radiation on the energy loads, bus energy performance were simulated also considering different types of paintwork with high reflectance.