scholarly journals A Tool for Optimal Refurbishment Design of Low-Energy Buildings

2021 ◽  
Vol 2042 (1) ◽  
pp. 012164
Author(s):  
I Salerno ◽  
M F Anjos ◽  
K McKinnon ◽  
E S Mazzucchelli
Keyword(s):  
Mathematical Optimization ◽  
Building Design ◽  
Payback Period ◽  
Low Energy ◽  
Thermal Mass ◽  
Core Component ◽  
Passive House ◽  
Existing Building ◽  
Low Energy Buildings ◽  
Study Case

Abstract We propose a model that aims to fulfill the following three necessities: the demand for refurbishing the existing built environment, the lack of a reliable means to help architects navigate among the numerous possible solutions for low-energy constructions, and the need for a multi-function tool to analyze buildings as complex systems. We introduce the Optimal Refurbishment Design (ORD) model that is a novel tool to help architects with the refurbishment of an existing building or the design of a new one. The ORD shows four innovative aspects. First, it opens the way to passive building design while focusing on affordable solutions. Second, its core component is based on mathematical optimization. Third, it simultaneously outputs optimal thermal mass and insulation of all the required elements in the building. Fourth, it automatically accounts for the user’s needs and local regulations. Unlike most of the approaches in the Literature, the ORD’s outputs are not limited by any pre-defined set of materials or strategies. We tested the ORD using a realistic study case of refurbishment, and found that the renovated house achieved the energy consumption of a Passive House by lowering its annual heating/cooling consumption by 23% with a payback period of less than 5 years.

scholarly journals Passivhaus

Encyclopedia ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 20-29
Author(s):  
Alejandro Moreno-Rangel
Keyword(s):  
Building Design ◽  
Design Principles ◽  
Low Energy ◽  
Design Criteria ◽  
Basic Design ◽  
Passive House ◽  
Low Energy Buildings

Passivhaus or Passive House buildings are low-energy buildings in which the design is driven by quality and comfort, hence achieving acceptable levels of comfort through post-heating or post-cooling of fresh air. Additionally, Passivhaus building design follows the Passivhaus design criteria, as described in the Passive House Planning Package (PHPP). This article aims to introduce the Passivhaus background, development, and basic design principles. Finally, it also presents a brief description of the performance of Passivhaus buildings.

CFD Investigation of the Effect of Building Passive Design Strategy on Energy Efficiency and Wind Comfort in Extreme Weather Conditions in Astana, Kazakhstan

2012 ◽  
Vol 253-255 ◽  
pp. 658-669 ◽  
Author(s):  
Serik Tokbolat ◽  
Raikhan Tokpatayeva ◽  
Sarim Al-Zubaidy
Keyword(s):  
Energy Efficiency ◽  
Energy Savings ◽  
Weather Conditions ◽  
Building Design ◽  
Low Energy ◽  
Weather Extremes ◽  
Existing Building ◽  
Passive Design ◽  
Low Energy Buildings ◽  
Wind Comfort

There is a distinct lack of building design literature specific to the Central Asian region. This perhaps, could be one of reasons for the only slight improvement of new building designs and construction. One does observe the highly glazed buildings are a particularly popular feature here in Astana, as like anywhere else in the world. However, excessively glazed surfaces combined with the weather extremes leads to adverse internal conditions and skyrocketing energy bills. The work presented in this paper is a part of continuing efforts to identify analyze and promote the design of ‘low energy, green and sustainable buildings with special reference to the Kazakhstan locality. In the present context, low energy buildings’ refers to buildings inherently low energy consuming by careful passive design, utilizing intelligent building technologies to automate building services and minimize wastage of energy and by incorporation of renewable technologies for its energy supply. Demonstration of improved environmental conditions and impact on energy savings will be outlined through a cause study incorporating application of passive design approach and detailed computational fluid dynamics (CFD) analysis for an existing building complex. The results indicated that there is a considerable influence of passive design and orientation on energy efficiency, wind comfort and safety.

Key Technologies and Trends of Passive Buildings

2014 ◽  
Vol 672-674 ◽  
pp. 1859-1862
Author(s):  
Li Zhong Shi ◽  
Ye Min Zhang
Keyword(s):  
Building Materials ◽  
Green Building ◽  
Developed Countries ◽  
Low Energy ◽  
Passive House ◽  
Green Building Materials ◽  
Low Energy Consumption ◽  
Key Technologies ◽  
Low Energy Buildings ◽  
Passive Houses

In recent years, ‘passive house’ is an increasingly well-known word, and has gained rapid popularity and application in Europe and other developed countries. Currently, residential passive house is growing at 8% annually in Europe. With its low energy consumption and ultra-high comfort, it is acclaimed as the most promising energy-saving substitute of conventional residences of this century. The passive houses in Hamburg Germany use 75% less energy than the normal low-energy buildings, more than 90% less than conventional German buildings [1]. As reported by the National Conference of Green Building Materials and German Passive House Technology held from 22nd to 25th April 2014, passive house will certainly become the mainstream building in the country in the next three to five years.

scholarly journals Analysis of the scope of thermo-modernization for a residential building in order to transform it into a low-energy building

2018 ◽  
Vol 44 ◽  
pp. 00069 ◽  
Author(s):  
Maciej Knapik
Keyword(s):  
Energy Demand ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Design ◽  
Primary Energy ◽  
Hot Water ◽  
Low Energy ◽  
Existing Building ◽  
Domestic Hot Water ◽  
Modernization Process

The article presents the problem of thermo-modernization and the reduction of energy demand for heating purposes in existing residential buildings. The thermo-modernization process has to adapt the existing building to the standard of a building with low energy demand and applicable regulations. Low-energy constructions are a result of introduction of new solutions in building design process. Their main objective is to achieve a significant reduction in demand for renewable primary energy, necessary to cover the needs of these buildings, mostly related to their heating, ventilation and domestic hot water. The article presents the results of the analysis and calculation of selected thermo-modernization variants. The results showed that thermo-modernization process of existing residential buildings is justified both energetically and economically.

Fire Protection Aspects of Low-Energy Buildings

2014 ◽  
Vol 899 ◽  
pp. 543-551
Author(s):  
Lajos Gábor Takács
Keyword(s):  
Fire Protection ◽  
Structure Design ◽  
Low Energy ◽  
Building Structure ◽  
Passive House ◽  
Timber Frame ◽  
Low Energy Buildings ◽  
Passive Houses ◽  
In Fire ◽  
Thermal Insulations

Structures of low energy buildings and passive houses are different from traditional buildings: thick thermal insulations often made of combustible materials -, lightweight skeleton frame loadbearing structures, timber frame constructions are common. Based on laboratory tests of lightweight building products, building structure design principles and the first fire events in passive houses, this article summarizes the main fire protection problems of passive house structures and gives recommendations for appropriate construction of these houses in fire protection aspects.

RESEARCH OF LOW ENERGY HOUSE DESIGN AND CONSTRUCTION OPPORTUNITIES IN LITHUANIA / MAŽAI ENERGIJOS NAUDOJANČIO NAMO PROJEKTAVIMO IR STATYBOS LIETUVOJE GALIMYBIŲ TYRIMAS

2010 ◽  
Vol 16 (3) ◽  
pp. 541-554 ◽  
Author(s):  
Nerijus Venckus ◽  
Raimondas Bliūdžius ◽  
Audronė Endriukaitytė ◽  
Josifas Parasonis
Keyword(s):  
Building Design ◽  
Climatic Conditions ◽  
Low Energy ◽  
New Concepts ◽  
Low Energy Buildings ◽  
Normative Requirements ◽  
Construction Experience ◽  
House Design ◽  
Energetic Performance ◽  
Design And Construction

Currently, the construction of low energy buildings in Europe is promoted. Existing and newly developed design and construction concepts for such buildings are adapted to their national or regional climatic conditions. The European Parliament has assigned the member countries to get ready for the reduction of the energy consumption in buildings. Therefore, Lithuania, like other EU countries, must be examined for the use of the low energy building design and construction experience, the existing concepts of low energy buildings should be adapted or new concepts of low energy building responding to the region's climate should be created. In this article, the most popular European mid‐region passive house concept and the energetic performance of the house, designed and built according to its requirements is analyzed, the main differences of this concept to the normative requirements of Lithuanian building regulations and proposals to improve provisions for the construction of low energy buildings in Lithuania is provided. Santrauka Šiuo metu Europoje skatinama mažai energijos vartojančių namų statyba. Esamos ir naujai kuriamos tokių namų projektavimo ir statybos koncepcijos dažniausiai pritaikytos konkrečios šalies arba regiono klimato sąlygoms. Europos Parlamentas įpareigojo šalis nares pasirengti mažinti pastatuose suvartojamos energijos kiekį. Todėl Lietuvoje, kaip ir kitose ES šalyse, turi būti išnagrinėta mažai energijos vartojančiių pastatų projektavimo ir statybos patirtis, perimtos jau taikomos arba sukurtos naujos koncepcijos, tinkamos šio regiono klimatui. Straipsnyje išanalizuota populiariausia Vidurio Europos regione pasyviojo pastato koncepcija, pagal jos reikalavimus suprojektuoto ir pastatyto namo energiniai rodikliai, nustatyti pagrindiniai šios koncepcijos ir Lietuvos statybos norminių dokumentų reikalavimu skirtumai ir pateikti pasiūlymai gerinti sąlygas mažai energijos naudojančiu pastatu statybai Lietuvoje.

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