Conceptualization, development and validation of EMAR: a user-friendly tool for accurate energy simulations of residential buildings via few numerical inputs

2021 ◽  
pp. 102647
Author(s):  
Fabrizio Ascione ◽  
Nicola Bianco ◽  
Teresa Iovane ◽  
Margherita Mastellone ◽  
Gerardo Maria Mauro
Keyword(s):  
Residential Buildings ◽  
Energy Simulations ◽  
User Friendly ◽  
Development And Validation

scholarly journals Lifecycle and ecomonical study of selected thermal solar installations

2020 ◽  
Vol 15 (2) ◽  
pp. 95-102
Author(s):  
Jaroslav Košičan ◽  
Miguel Ángel Pardo ◽  
Silvia Vilčeková
Keyword(s):  
Residential Buildings ◽  
Solar Thermal ◽  
Total System ◽  
Heating Systems ◽  
Yearly Average ◽  
The Family ◽  
Average Water ◽  
Energy Simulations ◽  
Family House ◽  
Specialized Program

AbstractCreating a scheme of solar thermal installations is a mighty move forward to develop a suitable energy standards of residential buildings. In recent years were done many studies, which did a several energy simulations for residence buildings. If design of thermal installation is false, it can lead to rise in the expensive overall energy costs and unsatisfactory thermal comfort in the building. Nowdays, in Slovakia using solar thermal installations are increasing more than in recent years. This research investigates twelve modern solar water heating systems, formed on the roof of the family house. We tried to make analysis, where designed solar energy systems were appropriate and fulfill energy requirements of DHW and heating. The study deals with the best financial alternative of the prepared installations of the house. According to overall prices of installation, energy production of additional source for heating and total system efficiency and lifespan, we found out the best possible choice. Expected amount of the various energy contribution is simulated in specialized program. If we talk about midterm energy values, we can see the best possible choice for the alternatives. In this case we made analysis of these schemes for typical family house in Kosice. We set the limits of the building and analyzed which scheme is the best for need of the yearly average water consumption and heating.

scholarly journals Optimization of building design process by using energy simulation tools

2018 ◽  
Vol 174 ◽  
pp. 01033
Author(s):  
Piotr Ziembicki
Keyword(s):  
Energy Efficiency ◽  
Design Process ◽  
Residential Buildings ◽  
Detailed Balance ◽  
Building Design ◽  
Simulation Software ◽  
Energy Simulation ◽  
Efficient Operation ◽  
Energy Simulations ◽  
Polish Law

Requirements concerning energy efficiency of buildings, as well as the emission of energy sources working for their needs, are constantly growing. It is related to the Polish law, as well as European Union directives. It is obvious that in the coming years, further regulations and directives will impose additional requirements in this area. Therefore, the requirements for the operation of buildings and process of their designing are changing already today. In the past, the design process, in particular in the aspect of energy consumption, was based primarily on the procedures of static analysis of the building's structure (partitions, glazing, etc.). A typical calculation of a building heat demand did not take into account other aspects of the building's operation, such as user behaviour, heat gains or thermal accumulation of the building. Therefore, in modern designing, it is extremely important to use advanced computer techniques to develop a detailed balance of energy, which takes into account all its useful forms, including heat and electricity. Only such a comprehensive approach will render it possible to achieve the energy efficiency indicators required by law, as well as an economically efficient operation of the building, with a minimal bad influence on the environment. In general, the manuscript presents methods of comprehensive computer energy simulation of buildings, which can be used for optimal designing of buildings for any purpose. The article also presents an overview of available computer tools, which are recommended for the building design process. There are also some examples of using a simulation software for the analysis of residential buildings, along with the analysis of the results of energy simulations carried out with its help.

scholarly journals A Study and Proposal for Applying Cooling Effect of Hybrid Ventilation to the Monthly Energy Demand Calculation Method in Korea

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7420
Author(s):  
Sangtae No
Keyword(s):  
Calculation Method ◽  
Energy Demand ◽  
Residential Buildings ◽  
Energy Performance ◽  
Reduction Factor ◽  
Air Cooling ◽  
Floor Plans ◽  
Hybrid Ventilation ◽  
Energy Simulations ◽  
Cooling Energy Demand

Countries around the world develop and use software based on the monthly calculation method of DIN V 18599:2007 and EN ISO13790 for building energy performance evaluations. The purpose of this study is to propose a method that can consider the effect of reducing cooling energy demand by hybrid ventilation outdoor air cooling in monthly calculation method-based software. For ventilation simulation, some representative floor plans and area types of Korean residential buildings were established through literature research. A number of dynamic energy simulations were performed for various building orientations, heights, and opening factors. Based on the simulation results, a nomograph that can calculate the cooling energy demand reduction factor according to hybrid ventilation that can be applied to the ventilation heat transfer coefficient is proposed.

scholarly journals TESTING THE NEW 3D BAG DATASET FOR ENERGY DEMAND ESTIMATION OF RESIDENTIAL BUILDINGS

2021 ◽  
Vol XLVI-4/W1-2021 ◽  
pp. 69-76
Author(s):  
C. León-Sánchez ◽  
D. Giannelli ◽  
G. Agugiaro ◽  
J. Stoter
Keyword(s):  
The Netherlands ◽  
Energy Demand ◽  
Residential Buildings ◽  
Energy Performance ◽  
Building Envelope ◽  
Simulation Software ◽  
Energy Simulation ◽  
Building Stock ◽  
Simulation Tools ◽  
Energy Simulations

Abstract. The 3D BAG v. 2.0 dataset has been recently released: it is a country-wide dataset containing all buildings in the Netherlands, modelled in multiple LoDs (LoD1.2, LoD1.3 and LoD2.2). In particular, the LoD2.2 allows differentiating between different thematic surfaces composing the building envelope. This paper describes the first steps to test and use the 3D BAG 2.0 to perform energy simulations and characterise the energy performance of the building stock. Two well-known energy simulation software packages have been tested: SimStadt and CitySim Pro. Particular care has been paid to generate a suitable, valid CityGML test dataset, located in the municipality of Rijssen-Holten in the central-eastern part of the Netherlands, that has been then used to test the energy simulation tools. Results from the simulation tools have been then stored into the 3D City Database, additionally extended to deal with the CityGML Energy ADE. The whole workflow has been checked in order to guarantee a lossless dataflow.The paper reports on the proposed workflow, the issues encountered, some solutions implemented, and what the next steps will be.

scholarly journals Reducing The Energy Consumption Of New Constuction Residential Buildings In Ontario: The Development Of Prescriptive Compliance Packages 20% Below Ontario Building Code Requirements

2021 ◽  
Author(s):  
Alejandra Nieto
Keyword(s):  
Air Conditioning ◽  
Residential Buildings ◽  
Building Envelope ◽  
Optimum Combination ◽  
The Other ◽  
Design Program ◽  
Home Construction ◽  
Thermal Bridging ◽  
Energy Simulations ◽  
Design Factors

To address energy concerns in new home construction in Ontario, advanced compliance packages have been developed that meet an energy reduction of 20% compared to SB-12 standards. The prescriptions are based on measures identified by homebuilders in the Savings by Design program. Energy simulations using HOT2000 have been conducted to establish the optimum combination of measures that will enable builders to meet the target, for 3 different house archetypes. Additional analysis was conducted to determine the effect of building orientation; climate; thermal bridging; air conditioning; and the SHGC of windows. A total of 9 advanced packages were developed. The findings from this study indicate that builders are more comfortable upgrading the systems components of a house as opposed to the building envelope components; different archetypes can reach the reduction target using different measures; and the other design factors must be considered in order to ensure the reduction target is achieved.

scholarly journals Application of hourly dynamic method for nZEB buildings in Italian context: analysis and comparisons in national calculation procedure framework

2021 ◽  
Vol 312 ◽  
pp. 02006
Author(s):  
Domenico Palladino ◽  
Domenico Iatauro ◽  
Paolo Signoretti
Keyword(s):  
Energy Use ◽  
Residential Buildings ◽  
Energy Performance ◽  
Building Envelope ◽  
Calculation Procedure ◽  
Reference Case ◽  
Context Analysis ◽  
Minimum Requirements ◽  
Energy Simulations ◽  
Italian Context

The Energy Performance of Buildings Directive (EPBD 2018/844/EU) requires to Member States to upgrade the methodology for the energy performance assessment of buildings. The current calculation method, based on the monthly quasi steady state calculation procedure, could be replaced in the next years by an hourly dynamic calculation procedure (EN ISO 52016), in which a resistance-capacity (RC) model is implemented to consider with more accuracy the heat exchange through the building envelope. In this framework, the present work aims at analysing and comparing the energy needs of three reference case studies of nearly Zero Energy Buildings (nZEB), applying both calculation procedures in order to investigate the main difference of the two approaches. Two residential buildings and one office, compliant with Italian minimum requirements for nZEB, were defined, and several energy simulations were carried out for all different climatic zones of Italian territory. Preliminary results highlighted significant differences of energy need mainly due to different weight of heat loss and heat gains obtained with the two considered calculation methods. This paper represents a preliminary study, but further analysis are recommended in order to evaluate the overall energy use for different type and different operation profile of buildings.

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