The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform
Sara Rainieri - One of the best experts on this subject based on the ideXlab platform.
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Restoration of the building hourly space Heating and cooling loads from the monthly energy consumption
Energy and Buildings, 2012Co-Authors: G. Pagliarini, Sara RainieriAbstract:Abstract The assessment of integrated multi-energy systems in buildings may require the knowledge of the energy use for building space Heating and cooling with a temporal precision of at least 1 h. To assist the overall system optimisation, a parameter estimation procedure, which allows to restore the hourly space Heating and cooling loads from the monthly energy consumption is here presented. The innovative aspect of the suggested approach lies in the possibility offered by a steady-state inverse modelling procedure to restore the short term Heating and cooling loads of a building by using as input aggregated energy consumption data and the short term behaviour of the climatic variables. The effectiveness of the procedure, based on a non-linear multivariate regression approach, has been assessed with synthetic data calculated by means of the TRNSYS 16 software. Climatic data from Meteonorm assisted the simulations for four European locations. Wall construction, glazing portion, internal both sensible and Latent Heat Gain, air change rate, time scheduling of plant operation have been considered. The hourly space Heating or cooling loads were restored with a coefficient of determination included between 0.74 and 0.96. The satisfactory results obtained suggest that the estimation procedure can be extended to restore the hourly energy use for space Heating and cooling from the utility bills of existing buildings.
Mustafa Aydin - One of the best experts on this subject based on the ideXlab platform.
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Psychometric and thermodynamic analysis of new ground source evaporative cooling system
Energy and Buildings, 2016Co-Authors: İlhan Ceylan, Alper Ergün, Bahadır Acar, Mustafa AydinAbstract:Abstract Evaporative cooling can be defined as the refreshment effect created by having water come into contact with ambient air. During this contact, liquid becomes gas or evaporates and absorbs Heat from the air. Technically, this Heat comes from the evaporation of Latent Heat. Evaporative cooling has been used in many applications due to its low cost. However, a considerable amount of water is needed for this kind of cooling. It is a very effective cooling method in the areas with low relative humidity and for particular areas of a building. For example, it is appropriate in workshops, recreation facilities, factories, dry cleaning rooms, greenhouses, laundries and commercial kitchens, where comfort is not very important in terms of humidity. The aim of this study was to reduce relative humidity to a comfortable level during cooling of the site with an evaporative cooling system. The evaporative cooling system was designed to be ground-sourced and was analyzed thermodynamically and psychometrically. Using an experimental system, we analyzed absorbed sensible Heat from air, Latent Heat Gain and cooling pad efficiency. The results indicated a refreshment efficiency of 38% on average, with relative humidity at 54% on average.
G. Pagliarini - One of the best experts on this subject based on the ideXlab platform.
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Restoration of the building hourly space Heating and cooling loads from the monthly energy consumption
Energy and Buildings, 2012Co-Authors: G. Pagliarini, Sara RainieriAbstract:Abstract The assessment of integrated multi-energy systems in buildings may require the knowledge of the energy use for building space Heating and cooling with a temporal precision of at least 1 h. To assist the overall system optimisation, a parameter estimation procedure, which allows to restore the hourly space Heating and cooling loads from the monthly energy consumption is here presented. The innovative aspect of the suggested approach lies in the possibility offered by a steady-state inverse modelling procedure to restore the short term Heating and cooling loads of a building by using as input aggregated energy consumption data and the short term behaviour of the climatic variables. The effectiveness of the procedure, based on a non-linear multivariate regression approach, has been assessed with synthetic data calculated by means of the TRNSYS 16 software. Climatic data from Meteonorm assisted the simulations for four European locations. Wall construction, glazing portion, internal both sensible and Latent Heat Gain, air change rate, time scheduling of plant operation have been considered. The hourly space Heating or cooling loads were restored with a coefficient of determination included between 0.74 and 0.96. The satisfactory results obtained suggest that the estimation procedure can be extended to restore the hourly energy use for space Heating and cooling from the utility bills of existing buildings.
İlhan Ceylan - One of the best experts on this subject based on the ideXlab platform.
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Psychometric and thermodynamic analysis of new ground source evaporative cooling system
Energy and Buildings, 2016Co-Authors: İlhan Ceylan, Alper Ergün, Bahadır Acar, Mustafa AydinAbstract:Abstract Evaporative cooling can be defined as the refreshment effect created by having water come into contact with ambient air. During this contact, liquid becomes gas or evaporates and absorbs Heat from the air. Technically, this Heat comes from the evaporation of Latent Heat. Evaporative cooling has been used in many applications due to its low cost. However, a considerable amount of water is needed for this kind of cooling. It is a very effective cooling method in the areas with low relative humidity and for particular areas of a building. For example, it is appropriate in workshops, recreation facilities, factories, dry cleaning rooms, greenhouses, laundries and commercial kitchens, where comfort is not very important in terms of humidity. The aim of this study was to reduce relative humidity to a comfortable level during cooling of the site with an evaporative cooling system. The evaporative cooling system was designed to be ground-sourced and was analyzed thermodynamically and psychometrically. Using an experimental system, we analyzed absorbed sensible Heat from air, Latent Heat Gain and cooling pad efficiency. The results indicated a refreshment efficiency of 38% on average, with relative humidity at 54% on average.
Alper Ergün - One of the best experts on this subject based on the ideXlab platform.
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Psychometric and thermodynamic analysis of new ground source evaporative cooling system
Energy and Buildings, 2016Co-Authors: İlhan Ceylan, Alper Ergün, Bahadır Acar, Mustafa AydinAbstract:Abstract Evaporative cooling can be defined as the refreshment effect created by having water come into contact with ambient air. During this contact, liquid becomes gas or evaporates and absorbs Heat from the air. Technically, this Heat comes from the evaporation of Latent Heat. Evaporative cooling has been used in many applications due to its low cost. However, a considerable amount of water is needed for this kind of cooling. It is a very effective cooling method in the areas with low relative humidity and for particular areas of a building. For example, it is appropriate in workshops, recreation facilities, factories, dry cleaning rooms, greenhouses, laundries and commercial kitchens, where comfort is not very important in terms of humidity. The aim of this study was to reduce relative humidity to a comfortable level during cooling of the site with an evaporative cooling system. The evaporative cooling system was designed to be ground-sourced and was analyzed thermodynamically and psychometrically. Using an experimental system, we analyzed absorbed sensible Heat from air, Latent Heat Gain and cooling pad efficiency. The results indicated a refreshment efficiency of 38% on average, with relative humidity at 54% on average.
