Study on Energy Saving Retrofitting Strategies for Existing Public Buildings in Shanghai

2009 ◽  
Author(s):  
Yuming Li ◽  
Yiqun Pan ◽  
Chen Chen
Keyword(s):  
Energy Saving ◽  
Building Energy ◽  
Payback Period ◽  
Building Envelope ◽  
Lighting System ◽  
Existing Buildings ◽  
Public Buildings ◽  
Different Types ◽  
Building Energy Analysis ◽  
Energy Conservation Measures

Public buildings include office building, schools, hotels, hospitals, retails and others. This paper selects two types of existing public buildings — office and hotel to conduct research. It firstly introduces and analyzes the feasible energy saving retrofitting strategies and technologies for existing public buildings in Shanghai, mainly about building envelope, HVAC system and lighting system. Then it builds up prototypical models, with whole building energy analysis software—EnergyPlus, for office and hotel respectively to simulate and calculate the annual energy saving and payback period of the various strategies. Therefore the different features of the two types of buildings and the energy saving effects of various strategies used on them are studied. The results show that the energy saved by each one strategy may be different for different types of existing buildings. For office buildings, such ECMs (energy conservation measures) as external shading, energy efficient lighting system, daylighting in perimeter area and variable pumps have short payback period. While for hotels, external shading, variable pumps and temperature reset have short payback period.

Demonstration Project Analysis of Energy Saving Renovation for Existing Building

2012 ◽  
Vol 450-451 ◽  
pp. 1461-1466
Author(s):  
Ling Wang ◽  
Wen Ling Tian ◽  
Yi Zhang ◽  
Pei Chen
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Heat Supply System ◽  
Building Energy ◽  
Building Envelope ◽  
Building Energy Efficiency ◽  
Existing Buildings ◽  
Existing Building ◽  
The Sustainable Development ◽  
Project Analysis

Building energy efficiency is quite important for the sustainable development of our community.Based on the analysis of the building environment,building envelope,energy consumption of existing buildings and the economic condition of the region in Tangshan,the energy - saving renovation measures of building envelope and heat supply system is decided. Then the energy consumption of the energy - saving renovated building is analysed to verify the renovation results. The measures proposed can be one solution of energy-saving renovation in north region.

Study of Building Energy-Saving Based on TRIZ

2012 ◽  
Vol 442 ◽  
pp. 58-61
Author(s):  
Jian Luo
Keyword(s):  
Energy Saving ◽  
Building Energy ◽  
Existing Buildings ◽  
Building Energy Saving

Energy saving always attracts many countries'attentions. Energy saving reform of the existing buildings was accepted in many countries. There are a lot of innovation in energy saving. In this paper, we believe that TRIZ can solve these problems in energy saving. Then, we constructed a model of energy-saving based on TRIZ. This model proposed preliminary solutions by using TRIZ in energy saving. TRIZ will be applied more in this field.

Research and Simulation of Energy-Saving Hierarchical Design Model for Differentiate Architecture

2014 ◽  
Vol 986-987 ◽  
pp. 1026-1028
Author(s):  
Hai Qing Guo
Keyword(s):  
Energy Saving ◽  
Building Energy ◽  
Indicator System ◽  
Building Envelope ◽  
Design Model ◽  
Current Status ◽  
Building Energy Efficiency ◽  
Hierarchical Design ◽  
Evaluation Information

Energy-saving hierarchical design model is established for differentiate architecture. From current status of China's construction, exploration research is established on energy-saving hierarchical design model of differentiate architecture to evaluate indicator system of energy-saving building. Availability of evaluation information in index system is low, so it is difficult to play the role of evaluation of building energy-efficiency. EHTV difference method is used to calculate and evaluate energy-saving design of hierarchical building, including: heat transfer indicator of building envelope targets, air conditioning and heating consumption, basis of EHTV indicators.

scholarly journals Performance Assessment of Phase Change Materials Integrated with Building Envelope for Heating Application in Cold Locations

2021 ◽  
Vol 1 (1) ◽  
pp. 7-14
Author(s):  
Qudama M. Q. Al-Yasiri ◽  
Márta Szabó
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Phase Change Materials ◽  
Renewable Energy Sources ◽  
Building Energy ◽  
Building Envelope ◽  
Cold Climates ◽  
Building Energy Saving ◽  
Energy Storage Applications ◽  
Heating Loads

Phase change materials (PCMs) are increasingly investigated in the last years as successful in many thermal energy storage applications. In the building sector, PCMs are utilised to improve building efficiency by reducing cooling/heating loads and promoting renewable energy sources, such as solar energy. This paper shows the recent research works on integrating PCMs with building envelope for heating purposes. The main PCM categories and their main characteristics are presented, focusing on PCM types applied for building heating applications. The main methods adopted to incorporate PCMs with building elements and materials are mentioned, and the popular passive and active incorporation techniques are discussed. Lastly, the main contribution to building energy saving is discussed in terms of heating applications. The analysed studies indicated that all PCMs could improve the building energy saving in the cold climates by up to 44.16% regardless of their types and techniques. Several conclusions and recommendations are derived from the analysed studies that are believed to be a guideline for further research.

scholarly journals Energy-Saving Design of Building Envelope Based on Multiparameter Optimization

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Weinan Gan ◽  
Yunzhong Cao ◽  
Wen Jiang ◽  
Liangqiang Li ◽  
Xiaolin Li
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Architectural Design ◽  
Indoor Environment ◽  
Window Size ◽  
Building Energy ◽  
Building Envelope ◽  
Wall Material ◽  
Nsga Ii ◽  
Design Variables

The contradiction between the indoor environment and building energy consumption has been controversial. The design of building envelope involves many parameters such as window size and exterior wall material. These parameters have significant influence on building energy-saving design and indoor environment. In this paper, nondominant sorting genetic algorithm-II (NSGA-II) is utilized to calculate winter heat consumption, indoor total lighting energy consumption, and thermal comfort. The Pareto method is used to select the compromise solution and effective value of each building parameter. Different from other studies, we add more architectural design variables into the model calculation, which can bring architects more detailed energy-saving design content.

scholarly journals BIM-VE-Based Optimization of Green Building Envelope from the Perspective of both Energy Saving and Life Cycle Cost

2020 ◽  
Vol 12 (19) ◽  
pp. 7862
Author(s):  
Zhenmin Yuan ◽  
Jianliang Zhou ◽  
Yaning Qiao ◽  
Yadi Zhang ◽  
Dandan Liu ◽  
...  
Keyword(s):  
Life Cycle ◽  
Energy Saving ◽  
Life Cycle Cost ◽  
Architectural Design ◽  
Green Building ◽  
Building Energy ◽  
Green Buildings ◽  
Building Envelope ◽  
Analysis Model ◽  
Mathematical Formula

In the context of the increasingly severe energy crisis and global warming, green buildings and their energy-saving issues are being paid more attention in the world. Since envelope optimization can significantly reduce the energy consumption of green buildings, value engineering (VE) technology and building information modeling (BIM) technology are used to optimize the envelope of green buildings, which takes into account both energy saving and life cycle cost. The theoretical framework of optimization for green building envelope based on BIM-VE is proposed, including a BIM model for architecture, a life cycle cost analysis model, energy-saving analysis model, and a value analysis model. In the life-cycle cost model, a mathematical formula for the life-cycle cost is established, and BIM technology is used to generate a bill of quantity. In the energy-saving analysis model, a mathematical formula for energy saving is established, and BIM technology is used for the building energy simulation. In the scheme decision-making sub-model, VE technology integrating life cycle cost with energy saving is used to assess the envelope schemes and select the optimal one. A prefabricated project case is used to simulate and test the established methodology. The important results show that the 16 envelope schemes make the 16 corresponding designed buildings meet the green building evaluation standards, and the optimal envelope scheme is the “energy-saving and anti-theft door + exterior window 2+ floor 1+ exterior wall 1 + inner shear wall + inner partition wall 2 + planted roof” with the value 10.80 × 10−2 MW·h/ten thousand yuan. A significant finding is that the value generally rises with the increase of energy-saving rate while the life cycle cost is irregular with the increase of energy-saving rate. Compared with previous efforts in the literature, this study introduces VE technology into architectural design to further expand the current boundary of building energy-saving theory. The findings and suggestions will provide a valuable reference and guidance for the architectural design industry to optimize the envelope of green buildings from the perspective of both energy saving and life cycle cost.

Measures on a Building in Beijing for Energy Saving

2011 ◽  
Vol 255-260 ◽  
pp. 2756-2760
Author(s):  
Yu Jie Zhou ◽  
Jin Dong Sun ◽  
Qing Hua Zhang
Keyword(s):  
Energy Saving ◽  
Building Energy ◽  
Transformation Model ◽  
Building Energy Efficiency ◽  
Existing Buildings ◽  
Air Conditioning System ◽  
Market Transformation ◽  
System Maintenance ◽  
Save Energy ◽  
Policy Guidance

Energy conservation guides and supports people to save energy of existing buildings energy through policy guidance and painstaking ideological work. Through demonstration projects, a set of building energy efficiency market transformation model has been formed. This paper introduces the overview of the building, room function, the air conditioning system, maintenance of the structure as the fundamental basis for energy saving. On this basis, suitable energy-saving proposals and measures for the building are proposed.

Application of Double-Sided Heat Flow Meter in Testing of Overall Heat Transfer Coefficient of Building Envelope

2013 ◽  
Vol 353-356 ◽  
pp. 2872-2876
Author(s):  
Hai Rong Dong ◽  
Shao Ming Qi
Keyword(s):  
Heat Flow ◽  
Thermal Property ◽  
Transfer Coefficient ◽  
Energy Saving ◽  
Field Testing ◽  
Building Envelope ◽  
Existing Buildings ◽  
Flow Meter ◽  
Thermal Transfer ◽  
Heat Flow Meter

It is essential to find out the thermal property of building envelope in order to design economical and reasonable scheme of energy-saving reconstruction. Field testing is a method of receiving the thermal property of envelope when existing buildings are reconstructed. In this paper, we focus on the need for obtaining the thermal transfer coefficient. A methoddouble-sided heat flow meter was introduced and used to test the thermal property of wall. The testing results show that it provides a feasible method for colleting basal data of energy-saving reconstruction of existing buildings.

Realize the Non-Load Bearing Walls Material Products Development of Building Envelope of Energy Conservation and Durable Fire Integration and Realize the Complete Sets of Technology Researching

2011 ◽  
Vol 71-78 ◽  
pp. 1136-1145
Author(s):  
Wan Zhi Cao ◽  
Hong Zhen Wang ◽  
Qing Xia Sun
Keyword(s):  
Energy Conservation ◽  
Energy Saving ◽  
Building Energy ◽  
Structural Features ◽  
Building Envelope ◽  
Mix Design ◽  
Materials Development ◽  
Load Bearing ◽  
Building Energy Conservation ◽  
Reduction Effect

Introduce the realizing the non-load bearing walls material products of building energy conservation and durable fire integration, which is also called the heat-cutting off energy-saving composite block. Introducing it’s constitute, structural features, mix design, productive technology, properties of products, main technological, economic indicators and energy saving and emission reduction effect. It is also introducing a technology thinking of new wall materials development.

scholarly journals Energy Saving Measures and Simulation in the Library Building of University of Surabaya

2018 ◽  
Vol 3 (1) ◽  
pp. 63
Author(s):  
Elieser Tarigan
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Thermal Performance ◽  
Heating System ◽  
Building Energy ◽  
Payback Period ◽  
Simulation Software ◽  
Efficient Technology ◽  
Radiant Cooling ◽  
Shading Devices

The rapid rate use of fossil fuels globally results in many environmental problems. The adoption of energy efficient technology has the potential to substantially reduce the amount of energy used in buildings. This paper discuses the energy saving measures and simulation for a six-floor library building, University of Surabaya, Indonesia. Simulation was carried out using the Excellence in Design for Greater Efficiency (EDGE) simulation software. The results of simulation showed that 53% of energy efficiency can be reached, without lowering of the building comfort, by applying of four measures at the same time are daylight photoelectric sensors for internal spaces (OFE29), radiant cooling and heating system (OFE16), higher thermal performance glass (OFE8), and external shading devices (OFE4). The implementation of the four measures would result in reduction of 758 ton of CO2/year with a payback period of 2.2 years.Keywords: Energy efficiency, energy building, energy saving, library building, energy simulation Pemanfaatan energy fosil dalam jumlah yang besar secara global menimbulkan permasalahan berkaitan dengan lingkungan. Usaha untuk mengimplementasikan teknologi dalam penghematan energi sangat signifikan dalam penerapannya pada bangunan. Tulisan ini mendiskusikan parameter-parameter penghematan energi serta mensimulasikannya pada sebuah bangunan perpustakaan Universitas Surabaya yang terdiri dari 6 lantai. Simulasi dilakukan menggunakan sofware EDGE. Hasil simulasi menunjukkan bahwa kombinasi 4 parameter penghematan energi dapat memberikan penghematan energi hingga 53%. Parameter tersebut adalah daylight photoelectric sensors for internal spaces (OFE29), radiant cooling and heating system (OFE16), higher thermal performance glass (OFE8), dan external shading devices (OFE4). Implementasi keempat parameter tersebut akan mengurangi emisi karbodiokasida 758 ton per tahun dengan payback period sekitar 2,2 tahun.Kata kunci: Efisiensi energi, energi pada bangunan, hemat energi, bangunan perpustakaan, simulasi energi 

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