scholarly journals Energy Sustainability of Bio-Based Building Materials in the Cold and Severe Cold Regions of China—A Case Study of Residential Buildings

2020 ◽  
Vol 10 (5) ◽  
pp. 1582 ◽  
Author(s):  
Haibo Guo ◽  
Siyuan Zhou ◽  
Tongyu Qin ◽  
Lu Huang ◽  
Wenjie Song ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Reinforced Concrete ◽  
Energy Saving ◽  
Building Materials ◽  
Residential Buildings ◽  
Building Envelope ◽  
Energy Sustainability ◽  
Cold Regions ◽  
Operation Phase ◽  
Straw Bale

The aim of this research is to investigate the energy sustainability of cross-laminated timber (CLT) and straw residential buildings in the Cold and Severe Cold Regions of China. In the study, three building materials, namely reinforced concrete (RC), CLT, and straw bale, are used separately to design the building envelope in reference residential buildings in different climate zones. The energy consumption during the operation phase of these buildings is then simulated using Integrated Environmental Solutions—Virtual Environment software (IES-VE). The results show that both CLT and straw buildings are more efficient than reinforced concrete with a reduction in energy consumption during the operational phase. Overall, the calculated heating energy-saving ratios for CLT buildings in Hailar, Harbin, Urumchi, Lanzhou, and Beijing are 3.04%, 7.39%, 7.43%, 12.69%, and 13.41%, respectively, when compared with RC. The calculated energy-saving ratios for heating in straw buildings in comparison with RC in these cities are 8.04%, 22.09%, 22.17%, 33.02%, and 34.28%, respectively. The results also reveal that a south orientation of the main building facade results in approximately 5% to 7% energy reduction in comparison with east or west orientations, and as the building height increases, energy consumption decreases gradually. Although RC is the most frequently used building material in Cold and Severe Cold regions in China, as bio-based building materials, there is great potential to promote CLT and straw bale construction in view of the energy sustainability features.

scholarly journals Evaluation of the Summer Overheating Phenomenon in Reinforced Concrete and Cross Laminated Timber Residential Buildings in the Cold and Severe Cold Regions of China

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6305
Author(s):  
Haibo Guo ◽  
Lu Huang ◽  
Wenjie Song ◽  
Xinyue Wang ◽  
Hongnan Wang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Reinforced Concrete ◽  
Building Materials ◽  
Residential Buildings ◽  
Building Envelope ◽  
Thermal Design ◽  
Cold Regions ◽  
Cross Laminated Timber ◽  
Design Standard

As the climate changed in recent years, an increase in summer indoor temperatures in severe cold and cold regions of China has started to affect thermal comfort. However, the local design standard for energy efficiency does not recognize this phenomenon. This paper reports the potential overheating phenomenon in residential buildings and examines the rationale for the current thermal designs adopted in severe cold and cold regions of China. In this study, the two most commonly used building materials, reinforced concrete (RC) and cross laminated timber (CLT), are used separately in the design of an 18-story residential building envelope located in six different cities in the severe cold and cold regions. The energy consumption and indoor operative temperatures during the operation of these buildings are simulated using Integrated Environmental Solutions Virtual Environment (IES VE). The results demonstrate that both the RC and the CLT buildings experience varying degrees of overheating in any climate subregion. The CLT buildings have longer overheating hours compared to the RC buildings, especially in the cold regions. The results also indicate that for apartments on higher stories, the cooling energy consumption and indoor temperature also increase gradually. The research results suggest that the local design standard for energy efficiency needs to be adjusted by adding thermal design methods for summer to reduce the periods of overheating.

scholarly journals Efficiency of Energy Consumption between Reinforced Concrete Structure and Cross-Laminated Timber Based Hybrid Structure in East Asian Cities

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 165
Author(s):  
Meng-Ting Tsai ◽  
Wei-Ting Lin
Keyword(s):  
Energy Consumption ◽  
Reinforced Concrete ◽  
Energy Saving ◽  
Building Materials ◽  
Hybrid Structure ◽  
Rc Beams ◽  
Structure System ◽  
Asian Cities ◽  
Energy Consumptions ◽  
Wooden Structures

From the environmental perspective, wooden structures are favorable insulators that are suitable for carbon fixation and wooden-related products are considered the most sustainable material. Research has indicated that wooden structures have superior energy-saving performance compared to reinforced concrete (RC) structures. In this study, a CLT-based hybrid structure system that potentially improves the efficiency of energy consumption is proposed. The proposed hybrid structure system, which preserved original RC beams, columns and replaced CLT floors and walls, has less building weight compared to the original RC building. Additionally, less energy required for the manufacturing of building materials in the renovation of the aged building is achieved, compared to building a new CLT building. The energy consumptions for buildings with heights of 10 stories were compared. CLT and RC were selected as benchmark building materials to compare the energy-saving efficiencies with the proposed hybrid structure system. In addition, to examine the energy consumption differences at different latitudes, the energy consumptions in Taipei, Tokyo, Harbin, and Singapore were compared as well. The simulation results indicate the proposed hybrid structure system, which comprises RC beams and columns and CLT floors and walls, and has an energy-saving efficiency close to that of a CLT structure, by approximately 3–5% higher, however, had a superior energy consumption performance to the RC structure. In general, the proposed hybrid structure system can be effectively used for old building renewal in the selected Asian cities.

Study on Energy-Saving Renovation of Existing Heating Masonry-Concrete Residential Buildings

2011 ◽  
Vol 280 ◽  
pp. 147-151 ◽  
Author(s):  
Hong Guo ◽  
Min Fang Su ◽  
Xiao Jun Jin
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Thermal Environment ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Indoor Thermal Environment ◽  
Consumption Situation ◽  
Current Energy

Based on the current energy consumption situation of existing masonry-concrete residential buildings in China, it discussed the main energy-saving renovation policies and technologies. Taking existing masonry-concrete residential building of Taiyuan city as a case, it analyzed its heat loss situations, energy-saving renovation design and reconstruction technologies of building envelope. It discussed energy-saving renovation effects. Energy efficiency and indoor thermal environment improved significantly after energy-saving renovation. The building life is extended.

Energy-Saving Test and Analysis of a Steel Residential Building in Cold Regions of China

2011 ◽  
Vol 243-249 ◽  
pp. 6938-6941
Author(s):  
Xiao Tong Peng ◽  
Chen Lin
Keyword(s):  
Energy Consumption ◽  
Energy Dissipation ◽  
Energy Saving ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Thermal Design ◽  
Actual Energy Consumption ◽  
Site Test ◽  
Heat Bridge

An on-site test on envelope of a typical steel residential building in cold region is performed. The testing results provide evaluation bases for the energy-saving effects of the steel residential building. In order to evaluate the main factors that influence energy dissipation of the building and estimate the main energy dissipation positions, the heat transfer coefficient K of envelope and its actual energy consumption are calculated based on the testing data. The results indicate that the building envelope has good heat storage property and it could keep indoor thermal stability; the steel frames and windows have heat bridge effects. Through calculations of the energy consumption of envelope, it is showed that the tested building only meet the requirement of energy saving by 50%, instead of 65%; the external walls and windows are main energy dissipation parts. Finally the thermal design recommendations about steel residential buildings are proposed.

Selection Analysis of Building Envelope with Building Materials in Summer Hot and Winter Cold Area — A Case Study in Xi’an Wall Insulation System

2013 ◽  
Vol 675 ◽  
pp. 162-164
Author(s):  
Xiao Lin Dong ◽  
Dong Nan Han
Keyword(s):  
Energy Consumption ◽  
Building Materials ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Simulation Software ◽  
Wall Structure ◽  
Insulation System ◽  
Different Types ◽  
Winter Cold

The model of residential buildings is established in allusion to the type of residential building wall exterior insulation system and the characteristics of the various features of the wall enclosure in summer hot and winter cold region. The energy consumption of different types of wall structure is simulated and calculated using energy simulation software DeST-h, the economic characters of the structure of energy consumption of different types were compared and analyzed comprehensively, the conservation and efficiency were quantitative analyzed, the principias for selecting the structure of residential buildings of wre provide based on the principle of maximizing energy efficiency.

scholarly journals An exploration aboutthe Solar Energy Utilization and the Enclosure SystemRenovation for Rural Residential Buildings in Cold Areas of Northern China——Taking the rural residential renovation design in Zhujialin Village, Linyi as an example

2019 ◽  
Vol 136 ◽  
pp. 02031
Author(s):  
Liu Lu ◽  
Tong Hui ◽  
Li Hao
Keyword(s):  
Energy Consumption ◽  
Solar Energy ◽  
Energy Saving ◽  
Rural Areas ◽  
Residential Buildings ◽  
Northern China ◽  
Energy Utilization ◽  
Heating Equipment ◽  
Cold Regions ◽  
Solar Energy Utilization

Rural areas in the cold regions of northern China generally suffer from excessive energy consumption, poor thermal comfort, and low thermal efficiency of heating equipment. In order to improve the comfort of ruralresidential buildings, renovation design has become an indispensable part of the current beautiful rural construction.This paper comprehensively analyzes the current situation of rural residential buildings in cold regionsbytaking the transformation ofa farmhouse in Zhujialin of Linyi City as an example. Moreover, the methods of energy-saving renovation of rural houses are explored from two aspects of solar energy utilization and enclosing system renovation. The research provides a feasible reference for energy-saving renovation of other rural areas in the cold regions of northern China.

Economic Potentials of Energy-Efficient Residential Building Envelope Retrofitting in Turkey

2019 ◽  
pp. 728-755
Author(s):  
M. Mustafa Erdoğdu ◽  
Coşkun Karaca ◽  
Ali Kurultay
Keyword(s):  
Energy Consumption ◽  
Thermal Resistance ◽  
Energy Efficient ◽  
Building Materials ◽  
Energy Savings ◽  
Residential Buildings ◽  
Residential Building ◽  
Economic Benefits ◽  
Building Envelope ◽  
Heat Transfers

The amount of energy consumption in the residential buildings has a very significant share with nearly 30 percent in the total amount of energy consumption. Therefore, residential sector is identified in this chapter as being one of the areas with a large potential for energy savings. Inefficient dwelling construction and design methods are widely used in Turkey and only about five percent of residential buildings are insulated. Concerning the importance and immediate need in Turkey for energy-efficient residential building retrofitting, this chapter identifies economic benefits of such retrofitting by particularly focusing on heat transfers by conductivity, where the rate can be determined by surface size, thermal resistance of the building materials and their thickness.

Investigation of Existing Situation and Study on Energy-Saving Potential of Rural Residential Buildings in Pearl River Delta

2011 ◽  
Vol 374-377 ◽  
pp. 199-203
Author(s):  
Ting Ting Li ◽  
Li Hua Zhao
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Pearl River Delta ◽  
Residential Buildings ◽  
High Energy ◽  
Building Envelope ◽  
River Delta ◽  
Pearl River ◽  
Brick Wall ◽  
Energy Saving Potential

The rapid development of rural economy has led the massive construction of rural dwellings, while the energy consumption is increasing correspondingly. A field study was carried out in local nine villages of Pearl River Delta, aims to look into actual conditions of rural residential buildings and explore the energy-saving potential, a detailed questionnaire survey was conducted as well to investigate the construction of rural dwellings and the influencing factors in design. The results of this investigation, which focused on dwellings built by residents, revealed that the built form of dwellings is generally Low-rise house, the average storey height ranges from 3.6 to 4 meters. The primary building envelope is 200 cm clay brick wall construction, and not insulated flat roofing, moreover, the high energy consumption of increasing multistorey dwellings has drawn attention.

Economic Potentials of Energy-Efficient Residential Building Envelope Retrofitting in Turkey

2016 ◽  
pp. 340-367
Author(s):  
M. Mustafa Erdoğdu ◽  
Coşkun Karaca ◽  
Ali Kurultay
Keyword(s):  
Energy Consumption ◽  
Thermal Resistance ◽  
Energy Efficient ◽  
Building Materials ◽  
Energy Savings ◽  
Residential Buildings ◽  
Residential Building ◽  
Economic Benefits ◽  
Building Envelope ◽  
Heat Transfers

The amount of energy consumption in the residential buildings has a very significant share with nearly 30 percent in the total amount of energy consumption. Therefore, residential sector is identified in this chapter as being one of the areas with a large potential for energy savings. Inefficient dwelling construction and design methods are widely used in Turkey and only about five percent of residential buildings are insulated. Concerning the importance and immediate need in Turkey for energy-efficient residential building retrofitting, this chapter identifies economic benefits of such retrofitting by particularly focusing on heat transfers by conductivity, where the rate can be determined by surface size, thermal resistance of the building materials and their thickness.

scholarly journals Study on Energy Saving Application Strategy of New Residential Houses Envelope Structure in Sanjiangyuan Area Based on Dest Orthogonal Simulation

2019 ◽  
Vol 136 ◽  
pp. 02036
Author(s):  
Yueheng Tong ◽  
Yang Chen ◽  
Wubing Shao
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Simulation Analysis ◽  
Residential Buildings ◽  
Rapid Development ◽  
Social Economy ◽  
Building Energy ◽  
Building Envelope ◽  
The North

With the rapid development of social economy, the problem of energy is becoming more and more serious, building energy conservation has become the top priority. Considering the abundant solar energy resources in the Sanjiangyuan area, this paper takes reduce the energy consumption of local residential noumena as the objective, and takes energy consumption of residential system as research target. Taking the modern dwellings in the Sanjiangyuan area as an example, to build a typical model, using the Dest software developed by Tsinghua University to dynamically simulate the load variation of building envelope caused by windows, exterior walls, window wall ratio and roof, and 16 orthogonal test results are simulated. Through the simulation analysis of the upper floors of the building, this study explores the changes in the influence of the form of the envelope structure on the building, then analyse the sensitivity of each factor affecting building energy consumption, and find out the optimal scheme of the envelope in the locality. Finally, this paper suggests that the energy conservation of new residential buildings in Sanjiangyuan area should strengthen the thickness of thermal insulation layer of envelop, open large windows in the south, open small windows in the north, and choose energy saving windows with low heat transfer coefficient to reduce energy consumption and save energy.

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