scholarly journals The analysis of energy-saving technologies used in buildings with low energy consumption

2020 ◽  
Vol 18 (3) ◽  
pp. 005-016
Author(s):  
Krzystof Pawłowski
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Architectural Design ◽  
Renewable Energy Sources ◽  
Low Energy ◽  
Technical Requirements ◽  
Building Systems ◽  
Low Energy Consumption ◽  
Low Energy Buildings ◽  
The Impact

Designing, constructing and using of buildings with low energy consumption are a complex process requiring knowledge of architectural design, construction physics and building systems with the use of renewable energy sources (RES). The article presents the legal bases and characteristics of low-energy buildings. Implementation of the binding technical requirements in the field of hygrothermal characteristics consists of monitoring numerous parameters of an entire building, and in particular of its partitions and their joints and building systems. Therefore, the paper presents calculations regarding determining the material systems of building partitions and building joints with the use of professional software. The main part of the article is to establish the impact of energy-saving technologies on the energy consumption of the newly designed buildings, but also of the buildings that are undergoing modernisation processes.

scholarly journals RESEARCH OF RELIABILITY INDICATORS OF VIBRATION SITES

2020 ◽  
Author(s):  
Ye. Chechel
Keyword(s):  
Energy Consumption ◽  
High Reliability ◽  
Operating Mode ◽  
Low Energy ◽  
Construction Equipment ◽  
Reliability Factor ◽  
Reliability Indicators ◽  
Technical Requirements ◽  
Low Energy Consumption

Vibrating machines, like any other construction equipment, must meet high technical requirements for equipment according to the following criteria: high reliability (high reliability factor), durability, efficiency (significant amplitudes of mass oscillations with low energy consumption), compliance with sanitary standards, instant achievement set operating mode, etc.).

scholarly journals Evaluating Insulation, Glazing and Airtightness Options for Passivhaus EnerPHit Retrofitting of a Dwelling in China’s Hot Summer–Cold Winter Climate Region

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6950
Author(s):  
Chenfei Liu ◽  
Stephen Sharples ◽  
Haniyeh Mohammadpourkarbasi
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Building Energy ◽  
Low Energy ◽  
Cold Winter ◽  
Winter Climate ◽  
Climate Region ◽  
Low Energy Consumption ◽  
Insulation Performance

Passivhaus EnerPHit is a rigorous retrofit energy standard for buildings, based on high thermal insulation and airtightness levels, which aims to significantly reduce building energy consumption during operation. However, extra retrofit materials are required to achieve this standard, which raises a contradiction between how to balance the environmental impacts of the retrofitting material inputs and extremely low energy consumption after retrofit. This motivated the analysis in this paper, which aimed to evaluate the possibilities of reducing the required retrofitting material inputs when trying to achieve the EnerPHit energy standard using a typical suburban dwelling in China’s hot summer–cold winter climate region as a case study. Firstly, how the insulation performance of each envelope component affected the building’s energy consumption was analysed. Based on this, sensitivity simulations of combinations of different insulation levels with different fabric components were investigated under four scenarios of insulation levels, airtightness and glazing choice. The final proposed retrofitting plans achieved the EnerPHit standard with insulation materials’ savings between 18% to 58% compared to a baseline retrofit plan, and this led, in turn, to 3.9 to 12.6 tonnes of carbon reductions. Moreover, an energy-saving of 87% in heating and 70% in cooling was achieved compared with the pre-retrofit dwelling.

scholarly journals Application of Low Cost Active and Passive Energy Saving Technologies in an Ultra-low Energy Consumption Building

2016 ◽  
Vol 88 ◽  
pp. 807-813 ◽  
Author(s):  
Hongting Ma ◽  
Weiye Zhou ◽  
Xinyu Lu ◽  
Zequn Ding ◽  
Yang Cao
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Low Cost ◽  
Low Energy ◽  
Low Energy Consumption

scholarly journals Research on Energy-saving Performance of Low-energy Consumption Green Buildings

2021 ◽  
Vol 233 ◽  
pp. 01100
Author(s):  
Wenhong Yu ◽  
Shengshi Tang ◽  
Kuan Wang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Evaluation System ◽  
Green Building ◽  
Green Buildings ◽  
Low Energy ◽  
Low Energy Consumption

In view of the shortcomings of the current green building evaluation system, this paper present a new evaluating index for the energy saving performance of low-energy green buildings: CEC, and this paper evaluated and analyzed the energy-saving performance of green building by using CEC index.

scholarly journals Discussion on the Intelligent Design of Ultra-Low Energy Consumption Passive Buildings

2019 ◽  
Vol 2 (2) ◽  
pp. 20
Author(s):  
Xin Tong ◽  
Xiaolin Yang ◽  
Xiao Ma
Keyword(s):  
Energy Consumption ◽  
Construction Projects ◽  
Architectural Design ◽  
Low Energy ◽  
Advanced Technology ◽  
Gradual Improvement ◽  
Building Technology ◽  
Low Energy Consumption ◽  
Intelligent Technology ◽  
Modern Building

With the continuous development of science and technology and the gradual improvement of modern building technology, people pay more and more attention to the introduction of advanced technology in architectural design, such as the application of intelligent technology. With the increasingly severe environmental situation, people are increasingly demanding the environmental performance and green performance of buildings. The establishment of ultra-low energy consumption passive buildings has become one of the key construction contents of construction projects. This paper mainly analyzes the design points and architectural forms of related buildings from the perspective of intelligent control.

scholarly journals Energy Efficiency as a tool to improve buildings behavoir In Egypt. A frame work to achive low energy buildings locally.

2020 ◽  
Vol 4 (1) ◽  
pp. 114
Author(s):  
Heba Mahrous Ali Abd El Aal
Keyword(s):  
Energy Consumption ◽  
Local Environment ◽  
Active Role ◽  
Low Energy ◽  
Operation Process ◽  
Low Energy Buildings ◽  
Development Goals ◽  
Frame Work ◽  
Negative Impacts ◽  
The Impact

Sustainable development goals for 2030 depending on how to create abetter life for pepole  including all parameters which affect human  to avoid the negative impacts  of climate change  which can destroy life on our plante.Saving energy is one of the main global problems, and buidings are one of the influences on energy consumption. It is a must to solve this problem by identifiy the causes which  includinng the building features, operation process  and the impact of its occupants . On the other hand, clarify permanent solutions according to modern concepts and techniques which can help to solve it locally.The study attempts to clarify human, nature environment and built environment impacts , in indicating how  building Play an active role in achieving virous stages of energy consumption or production  to adress the enegy effeciency importance.This paper discusses this issues and gives recommendations and proposals on how to solve problemsensure the achievement of low energy buildings in Egypt depending on the parameters which respect and  depend on our local environment in Egypt.

scholarly journals ENERGY BALANCE OF A LOW ENERGY HOUSE

2012 ◽  
Vol 18 (3) ◽  
pp. 369-377 ◽  
Author(s):  
Rasa Džiugaitė-Tumėnienė ◽  
Vidmantas Jankauskas ◽  
Violeta Motuzienė
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Performance ◽  
Building Envelope ◽  
Low Energy ◽  
The European Union ◽  
Consumption Data ◽  
Low Energy Buildings

Currently, such topics as improvement of energy efficiency of buildings and energy systems, development of sustainable building concepts, and promotion of renewable energy sources are in the focus of attention. The energy efficiency targets of the European Union are based on information regarding energy consumed by buildings. The amount of energy consumed by buildings depends on the main influencing factors (namely, climate parameters, building envelope, energy systems, building operation and maintenance, activities and behaviour of occupants), which have to be considered in order to identify energy efficiency potentials and opportunities. The article aims to investigate the total amount of energy consumed by a low energy house, built in Lithuania, using a combination of energy consumption data received from a simulation and measured energy consumption data. The energy performance analysis in the low energy house revealed some factors that have the main influence on the total figures of energy consumed by the house. The identified significant factors were used to find the optimal solutions for the design of low energy buildings.

Achieving a high fill factor for organic solar cells

2016 ◽  
Vol 4 (16) ◽  
pp. 5784-5801 ◽  
Author(s):  
Meng-Huan Jao ◽  
Hsueh-Chung Liao ◽  
Wei-Fang Su
Keyword(s):  
Energy Consumption ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Renewable Energy Sources ◽  
Low Energy ◽  
Energy Sources ◽  
Low Energy Consumption ◽  
High Fill Factor ◽  
Cost Efficient ◽  
Key Parameter

Organic photovoltaics (OPVs) have potential to become cost-efficient, low-energy consumption, and environmentally friendly renewable energy sources. A key parameter to determine the performance of OPVs is fill factor (FF). We review theoretical deduction as well as practical approaches to enhance FF. At present, the performance and FF of OPVs have reached above 11% and 75%, respectively.

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