Paolo Maria Congedo

Paolo Maria Congedo
Università del Salento | Unisalento · Department of Engineering for Innovation

Professor

About

141
Publications
44,158
Reads
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2,930
Citations
Citations since 2017
65 Research Items
2455 Citations
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20172018201920202021202220230100200300400500
20172018201920202021202220230100200300400500
20172018201920202021202220230100200300400500
Introduction
Paolo Maria Congedo, Ph.D. Associate Professor in Applied Physics for Environmental Applications at Dipartimento di Ingegneria dell’Innovazione – University of Salento. Qualified as Full professor in “09/C2 - Fisica Tecnica e Ingegneria Nucleare” from 09/09/2019 to 09/09/2028 (art. 16, comma 1, Italian Law 240/10).
Additional affiliations
January 2004 - present
Università del Salento
Position
  • Senior Researcher

Publications

Publications (141)
Article
Hospital buildings are known to be energy-intensive, since they are operated all year round at high costs, contain sophisticated medical equipment, and follow strict cleaning practices and environmental regulations. Domestic hot water consumption accounts for most of the energy consumption in hospital buildings. The objective of this research work...
Chapter
Cities are vulnerable to a variety of unforeseen change scenarios, which can lead to rapid changes in the lives of the population. Resilience is a concept that indicates a city’s ability to adapt and recover from an unforeseen shock. Changes can be due to climate change, pandemics, and wars. All scenarios are unfortunately present today. The questi...
Chapter
Climate change is leading to new challenges, especially in the construction sector, which is considered one of the most energy-intensive sectors. This study aims to highlight the performance of the same building located in different climates, under climate change considering the years 2020, 2050, and 2080. The locations chosen for the analysis are...
Article
Climate change will impact the building sector, but the related consequences are not fully known, especially at energy system level. This paper investigates the effect of a changing climate on heat pumps, worldwide recognized as one of the most promising technology to decarbonize the building sector. Being highly dependent on outdoor temperature, t...
Article
Full-text available
This work aims to assess the impacts of climate change on photovoltaic (PV) electricity in two Italian cities, with different latitudes and Köppen–Geiger climate classifications. This was undertaken using the recent EURO-CORDEX set of high-resolution climate projections and PV power generation models, implemented on TRNSYS software. Data for two va...
Conference Paper
The objective of this research work is to study the energy performance of a compound parabolic concentrator (CPC) system with two storage tanks for the production of domestic hot water (DHW) used for two different users; the first requires high temperatures while the second requires lower temperatures. The system investigated consists of CPC sys...
Conference Paper
Experts have suggested possible solutions for the decarbonization of various sectors to decrease carbon dioxide emissions. One of the most promising decarbonization solutions is to use hydrogen as an energy carrier for different applications. Hydrogen can be used for the decarbonization of various sectors, and there is no real alternative to dec...
Article
Full-text available
This study presents the retrofit acoustic design of the Italian theatre "Cavallino Bianco". In its historical configuration, the hall had a curved roof with a pressed-plant fiber ceiling, which was demolished and replaced with a wooden roof without a false ceiling, leading to an increase in volume and worsening of the reverberation time. This study...
Article
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Energy storage makes energy continuously available, programmable, and at power levels different from the original intensity. This study investigates the feasibility of compressed-air energy storage (CAES) systems on a small scale. In addition to the CAES systems, there are two TES (thermal energy storage) systems for the recovery of calories and fr...
Article
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Thermal modeling of building components plays a crucial role in designing energy efficiency measures, assessing living comfort, and preventing building damages. The accuracy of the modeling process strongly depends on the reliability of the physical models and the correct selection of input parameters, especially for historic buildings where uncert...
Conference Paper
The objective of this work is to assess the impacts of climate change on PV electricity in two Italian cities, characterized by different latitude and Köppen-Geiger climate classes. This was done using the recent EURO-CORDEX set of high-resolution climate projections together with PV power generation models, implemented on TRNSYS software. Data for...
Conference Paper
Worldwide, an increase in global temperature is expected to be caused by climate change. The building sector, one of the most energy-intensive, will be strongly affected by this change. There is a growing interest in energy-efficient, environmentally systems that can guarantee an adequate indoor climate for years to come. Although air-source heat p...
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This work presents a new protocol for monitoring rising damp, which is applied to three masonry models made of tuff, carparo, and Lecce stone. First, the physical characteristics of each stone were derived in the laboratory, which included porosity, imbibition, drying index, permeability, capillarity, and sorptivity. In this case, the protocol prov...
Article
Solar greenhouses are currently the most energy-intensive agricultural sector. In literature, there is no worldwide mapping of solar greenhouse performance under different climate scenarios. This study analyzes the performance of a Venlo solar greenhouse for 48 localities around the world. Solar greenhouses are mainly made of a transparent envelope...
Article
Around the world, expected climate changes can affect indoor comfort conditions in buildings. Analysing the climate in which buildings are located is the first step towards high-efficiency design, and today it is no longer possible to ignore impending climate change. This study has provided a worldwide picture of how comfort conditions inside a bui...
Article
Zero Energy Buildings (ZEBs) are expected to play a significant role in reducing energy consumption and combating climate change. Despite this awareness, there is a lack of approaches and indicators at the regulatory level to quantify the long-term potential of strategies applied to buildings today. This study concerns the dynamic thermal modeling...
Article
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This work proposes a new device for air treatment with dehumidification and water recovery/storage, with possible mitigation of indoor environmental conditions. The system is based on Peltier cells coupled with a horizontal earth-to-air heat exchanger, it is proposed as an easy-to-implement alternative to the heat pumps and air handling units curre...
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Ensuring optimum interior lighting is a topic of great importance, as this influences not only the well-being of users but also the optimal performance of visual tasks. Lighting can be natural, but if not sufficient, it can be compensated with artificial lighting. This study highlights a methodology for designing a new lighting system that takes in...
Article
Micro-climate and materials characteristics strongly influence rising damp. The evaporation rate depends on indoor temperature and relative humidity. Lecce Stone and Carparo, typical Southern Italy materials, were investigated. The rising damp height decreases with the increase of the evaporation rate. The stationary state was reached one month aft...
Article
In recent years, research has shown a growing interest in the use of hybrid wind photovoltaic (PV) systems that provide better performance compared to the use of a single component due to complementarity in meeting electricity demand. Over the past twenty-five years, hundreds of articles have addressed the topic of hybrid systems considering differ...
Conference Paper
Hygrothermal simulations are expected to provide powerful support to the design process in the context of energy retrofit of historic buildings and prevent the moisture-related damages. They can be used to predict the hygrothermal behaviour of the building in detail and exclude the occurrence of moisture related damages, such as mould formation or...
Article
Nowadays, the goal of national and international policies is to define strategies to achieve Zero Energy Districts (ZEDs). The transition from ZEBs to ZEDs entails an increase in complexity and one of the main challenges is the definition of criteria for assessing the district sustainability performances. Part I of this paper presents a new methodo...
Article
The analysis of urban districts involves many critical issues and different design constraints related to the urban context. The characteristics of district area are based on climatic properties, geometrical design, type and number of buildings, places of construction, distances, shading patterns. This work proposes a tool able to integrate heterog...
Article
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This paper proposes a critical review of the different aspects concerning magnetic refrigeration systems, and performs a detailed analysis of thermodynamic cycles, using mathematical models found in the literature. Langevin's statistical mechanical theory faithfully describes the physical operation of a refrigeration machine working according to a...
Article
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The data describe supplementary materials supporting the research article entitled “Worldwide geographical mapping and optimization of stand-alone and grid-connected hybrid renewable system techno-economic performance across Köppen-Geiger climates” [1]. Hybrid renewable energy systems are increasingly adopted worldwide as technically and economical...
Article
In the last years, a significant interest in research in stand-alone (SA) and grid-connected (GC) photovoltaic (PV)-wind hybrid renewable energy systems (HRES) is observed for their complementary in the satisfaction of the electrical energy demand in many sectors. However, direct comparisons between the techno-economic performance of two system mod...
Article
Full-text available
This dataset supports the research article “Complete greenhouse dynamic simulation tool to assess the crop thermal well-being and energy needs” [1]. In the agricultural sector, the use of energy can be very intensive [2] and the simulation of solar greenhouses is a very complex work [3]. This dataset provides the results of thermal modeling and dyn...
Article
Geothermal energy has a huge potential in building applications. This paper proposes the use of an Air-Source Heat Pump (ASHP) system coupled with a Horizontal Earth-To-Air Heat Exchanger (EAHX) to reduce energy consumption in buildings. The novelty is to geothermally pre-heat or pre-cool the air source of the ASHP through the EAHX, reducing the el...
Article
There is not a real “storage market” and the range of technical solutions for electrical storage appears to be underdeveloped. The use of electrochemical batteries seems to be the easiest and cheapest way, but some problems related to disposal, average life span and storage capacity, still put a brake on their diffusion. The micro CAES-TES (Compres...
Article
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Greenhouse crops represent a significant productive sector of the agricultural system; one of the main problems to be addressed is indoor air conditioning to ensure thermal well-being of crops. This study focuses on the ventilation analysis of solar greenhouse with symmetrical flat pitched roof and single span located in a warm temperate climate. T...
Article
Greenhouse technology is an important energy consumer sector representing an indispensable solution for modern methods of crop production. In the greenhouse envelope and system design phase, thermodynamic performance simulation tools are required. The greenhouse simulation is still a very complex task despite many building tools are available in th...
Article
This paper proposes the application on microscale of an innovative trigeneration system with micro CAES (Compressed Air Energy Storage) – TES (Thermal Energy Storage) and the integration of renewable energy production, focusing on the potential use for air conditioning and domestic hot water systems. The system allows storing mechanical energy in t...
Article
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The growth of economies and the world population has led to an increase in the electricity demand, toward a disproportionate use of fossil fuels. The PV-wind hybrid system is considered an optimal solution in terms of technical efficiency and costs to reduce the use of fossil sources. The strong variability of renewable energies generated by solar...
Article
The development of hybrid renewable systems is an economically competitive solution to reach energy decarbonization and reduction of greenhouse gasses. Based on the literature, energy, economic and environmental indicators were rarely simultaneously employed in the optimization of a hybrid renewable system. In addition, there is no procedures or a...
Article
Full-text available
A light pipe is an excellent solution to transport and distribute daylight into environments without or with little lighting, guaranteeing comfort inside the rooms. As stated in the literature, the evaluation of the performances of light pipes presents numerous complexities, making the work very difficult for technicians and designers. This study i...
Article
Buildings built in warm climates are affected by severe overheating problems in summer, which negatively affects people's comfort and health. For these reasons, many users are forced to install cooling systems, leading to an increase in costs, consumption and a meaning impact on the environment. This study gives a valid method to monitor the overhe...
Article
A numerical method, called WEST (Wind Energy Study of Territory), has been used to study and evaluate the wind energy potential of 5 windfarms in Apulia Region (Italy). This model, based on historical meteorological and geophysical data, allows characterizing anemometric fields of a territory and, therefore, calculating its wind power potential. In...
Article
A large part of primary energy is used for heating and cooling the buildings. The exploitation of renewable resources in the building sector is still critical to ensure a high level of energy and environmental sustainability. Nowadays, a great attention is focused on geothermal energy, which reduces heating and cooling in buildings, allowing natura...
Article
The international scientific community believes unequivocally that, at the origin of the climate change, there are anthropic factors mainly linked to the construction sector and to the disproportionate use of fossil energy sources. The selection of building materials plays a key role in the reduction of energy consumption, especially in the Mediter...
Article
Full-text available
The building sector is responsible for a large part of the overall energy demand in Europe. Energy consumption may be reduced at the design stage by selecting the proper building elements. This study develops a multi-objective analysis for a highly efficient slab-on-ground floor, whose design is optimized for a warm climate. Possible floor configur...
Article
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A concept of Air-Cooled Heat Pump (ACHP) coupled with a Horizontal Air-Ground Heat Exchanger (HAGHE), also called Horizontal Earth-To-Air Heat Exchanger (EAHX), has been proposed. The Air-Cooled Heat Pump is a system which transfers heat from outside source (air) to inside sink (water) and vice versa in summertime. The innovation is to provide a ge...
Article
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Energy consumption in new buildings can be reduced at the design stage. This study optimizes the ventilation system design of a new residential building located in a warm climate (Southern Italy). Different system options of horizontal air-ground heat exchangers (HAGHEs), also called earth-to-air heat exchangers (EAHX), have been considered to sear...
Article
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This data article relates to a multi-criteria process applied to slab-on-ground floor for buildings in warm climate. The input data of the analysis are the building materials with their thermal properties, sustainability characteristics and supply and installation costs. The multi-criteria analysis has been performed with the software modeFRONTIER....
Article
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Electric production data of a grid-connected hybrid system are presented. The system consists of a photovoltaic generator, a wind micro-generator in the presence (HPWBS) or absence (HPWS) of an electric storage system. In such a system, the power generated by RES (Renewable energy sources) is sent directly to balance the load. A residential use has...
Technical Report
Full-text available
This work presents an energy and economic analysis of a grid-connected hybrid system, consisting of a photovoltaic generator, a wind micro-generator and an electric storage system, for the supply of electric energy to a residential use. The study has been realized in TRNSYS environment, through the definition of a model and a dynamic algorithm for...
Article
A multi-objective optimization method for the dimensioning of hybrid photovoltaic-wind-battery systems HPWBS characterized by high-energy reliability is proposed. The energy reliability-constrained (ERC) method permits choosing the most proper indicators combination to be constrained or optimized as a function of the specific application. The ERC m...
Article
Full-text available
Several technical combinations have been evaluated in order to design high energy performance buildings for the warm climate. The analysis has been developed in several steps, avoiding the use of HVAC systems. The methodological approach of this study is based on a sequential search technique and it is shown on the paper entitled “Envelope Design O...
Article
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This study investigates the effects of commercial nanoparticles on thermal and mechanical performance of rigid polyurethane foams. Two different types of nanoparticles are considered as fillers, spherical titania and rod-shaped halloysite clay nanotubes. The aim of this study was to produce rigid polyurethane foams modified with titania nanocrystal...
Article
This study demonstrates how it is possible to increase the performances of an air-cooled heat pump by the use of Horizontal Air-Ground Heat Exchanger (HAGHE); the analysis has been carried out varying the air flow rate and heat conductivity of the ground. For a warm climate, the air treatment using HAGHE involves an improvement of the Energy Effici...
Article
Full-text available
Finding the most appropriate configuration of building components at the design stage can reduce energy consumption in new buildings. This study aims to optimize the design of the envelope of a new residential building located in a warm climate (southern Italy). The thermal behaviour of the building has been analysed to evaluate the indoor operativ...
Article
This paper proposes an integrated rehabilitation project of an abandoned farmhouse in a rural area in Southern Italy. The building underwent a functional recovery to become a tourist accommodation. The use of natural materials can reduce energy consumption and carbon footprints considering environmental sustainability aspects. A proper selection of...
Conference Paper
Daylight access and indoor thermal comfort are key issues for high design level of sustainable buildings. In fact, daylight provides energy savings and visual comfort condition that can foster higher productivity and performance. This paper proposes a case study of sizing of daylight devices for zenith light. It enables the decision-making process...
Article
Full-text available
Performance of photovoltaic (PV) systems degrades due to the technology and the operating conditions. The degradation of is one of the key indicators for reliability assessment of a PV system. This paper presents a degradation study of the grid connected PV system located in the campus of the University of Salento. A comparative analysis of actual...
Article
Full-text available
The European Directives promote the energy consumption assessment in residential and industrial sectors in order to identify specific measures for getting energy savings. This paper presents the results of the energy use analysis, carried out for a wine manufacturing firm located in Southern Italy. The energy consumptions of the main wine productio...
Article
The European Energy Performance of Buildings Directive (EPBD) recast proposes, a comparative methodology to calculate cost-optimal levels of minimum energy performance requirements for buildings. This paper presents a method able to select the best retrofit action for lighting system, selectively analysing the daylight conditions and applying the c...
Article
This work presents the performances of an Air-Cooled Heat Pump combined with Horizontal Air Ground Heat Exchanger. The Horizontal Air Ground Heat Exchanger has been used not for the direct ventilation of the room, but for the treatment of the outside air flux of an Air-Cooled Heat Pump; consequently, the heat pump works with colder and warmer air t...
Article
Full-text available
Stochastic nature of weather conditions influences the photovoltaic power forecasts. The present work investigates the accuracy performance of data-driven methods for PV power ahead prediction when different data preprocessing techniques are applied to input datasets. The Wavelet Decomposition and the Principal Component Analysis were proposed to d...
Article
This paper investigates the performance of a 960 kWP photovoltaic (PV) system, located in southern Italy. Monitoring data over a 43 months period are used to evaluate the monthly average of energy yields, losses and efficiency. The performance ratio and the capacity factor were 84.4% and 15.6%, respectively. The yearly average module efficiency was...
Conference Paper
Full-text available
The energy consumption coming from the life cycle of the buildings has a strong impact on the total energy demand and on the environmental pollution, for this reason the attention of many European and national energy policies is focused on the issue of the energy consumption and the energy efficiency improvement. Since the 11% of the world energy i...
Article
Full-text available
Accounting for nearly 40% of final energy consumption, buildings are central to European energy policy. The Directive on Energy Performance of Buildings establishes a benchmarking system known as cost-optimality to set minimum energy performance requirements in new and existing buildings. This paper applies the cost-optimal methodology to an existi...
Article
Full-text available
The data concern the photovoltaic (PV) power, forecasted by a hybrid model that considers weather variations and applies a technique to reduce the input data size, as presented in the paper entitled "Photovoltaic forecast based on hybrid pca-lssvm using dimensionality reducted data" (M. Malvoni, M.G. De Giorgi, P.M. Congedo, 2015) [1]. The quadrati...
Article
Improving energy efficiency in buildings and promoting renewables are key objectives of European energy policies. Several technological measures are being developed to enhance the energy performance of buildings. Among these, geothermal systems present a huge potential to reduce energy consumption for mechanical ventilation and cooling, but their b...
Article
Full-text available
"Efficient Solutions and Cost-Optimal Analysis for Existing School Buildings" (Paolo Maria Congedo, Delia D’Agostino, Cristina Baglivo, Giuliano Tornese, Ilaria Zacà) [1] is the paper that refers to this article. It reports the data related to the establishment of several variants of energy efficient retrofit measures selected for two existing scho...
Article
Nowadays, the design of Zero Energy Buildings requires a technology of light multi-layered walls and the envelope represents a key element to reach high level of thermal behaviour and indoor comfort. This paper illustrates a method based on a multi-criteria analysis for the design of energy-efficient precast walls in the cold climate. It encourages...
Article
The performance assessment of photovoltaic (PV) systems is a complex process. Several meteorological data sources are available to evaluate the PV system generation. Different computing models can be applied to determinate the solar irradiance on the plane of the array (POA). The cooling effect of the PV module due to the wind speed should not be n...
Article
Full-text available
The recast of the energy performance of buildings directive (EPBD) describes a comparative methodological framework to promote energy efficiency and establish minimum energy performance requirements in buildings at the lowest costs. The aim of the cost-optimal methodology is to foster the achievement of nearly zero energy buildings (nZEBs), the new...
Article
Full-text available
Data are related to the multi-objective optimization process applied to the building materials to obtain high energy-efficient precast walls for cold climate. The methodology has been explained on the paper entitled “High performance precast external walls for cold climate by a multi criteria methodology” (Baglivo and Congedo, 2016) [1]. The modeFR...
Article
The main goal of the EPBD (Energy Performance Buildings Directive) is the improvement of the energy performance of the European buildings. The internal comfort is critically dependent on the envelope that plays a key role in the thermal balance of the entire building. In particular, the windows are one of the most critical elements in terms of sola...