scholarly journals Energy Benchmarking And Energy Saving Assessment In High-Rise Multi-Unit Residential Buildings

2021 ◽  
Author(s):  
Yirong Huang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Portfolio Management ◽  
Residential Buildings ◽  
Cost Savings ◽  
Energy Star ◽  
High Rise ◽  
Knowing That ◽  
Energy Benchmarking ◽  
Simple Ratio

The purpose of energy benchmarking is to promote efficient use of energy. Knowing that the energy used by a building is excessive is the first step in making positive changes. Based on an energy benchmark, one can estimate the potential in energy and cost savings when pursuing better performance. This thesis developed weather normalized energy benchmarking of 45 gas-heated high-rise multi-unit residential buildings (MURBs) in Toronto. The weather normalized annual energy consumption (NAC) was calculated by the PRInceton Scorekeeping Method (PRISM). The NACs are in the range from 242 to 453 kWh/m The NACs, calculated by the simple ratio weather normalization (SRWN) method and ENERGY STAR® Portfolio Management (PM) method were comparable to PRISM results. However, the SRWN method tends to overestimate the energy saving by 23% while PM underestimates it by 21%.

scholarly journals Energy Benchmarking And Energy Saving Assessment In High-Rise Multi-Unit Residential Buildings

2021 ◽  
Author(s):  
Yirong Huang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Portfolio Management ◽  
Residential Buildings ◽  
Cost Savings ◽  
Energy Star ◽  
High Rise ◽  
Knowing That ◽  
Energy Benchmarking ◽  
Simple Ratio

The purpose of energy benchmarking is to promote efficient use of energy. Knowing that the energy used by a building is excessive is the first step in making positive changes. Based on an energy benchmark, one can estimate the potential in energy and cost savings when pursuing better performance. This thesis developed weather normalized energy benchmarking of 45 gas-heated high-rise multi-unit residential buildings (MURBs) in Toronto. The weather normalized annual energy consumption (NAC) was calculated by the PRInceton Scorekeeping Method (PRISM). The NACs are in the range from 242 to 453 kWh/m The NACs, calculated by the simple ratio weather normalization (SRWN) method and ENERGY STAR® Portfolio Management (PM) method were comparable to PRISM results. However, the SRWN method tends to overestimate the energy saving by 23% while PM underestimates it by 21%.

scholarly journals Modifying Building Energy-Saving Design Based on Field Research into Climate Features and Local Residents’ Habits

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 442
Author(s):  
Xiaoyue Zhu ◽  
Bo Gao ◽  
Xudong Yang ◽  
Zhong Yu ◽  
Ji Ni
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Residential Buildings ◽  
Average Energy ◽  
Field Tests ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Local Conditions ◽  
Building Energy Saving ◽  
Average Energy Consumption

In China, a surging urbanization highlights the significance of building energy conservation. However, most building energy-saving schemes are designed solely in compliance with prescriptive codes and lack consideration of the local situations, resulting in an unsatisfactory effect and a waste of funds. Moreover, the actual effect of the design has yet to be thoroughly verified through field tests. In this study, a method of modifying conventional building energy-saving design based on research into the local climate and residents’ living habits was proposed, and residential buildings in Panzhihua, China were selected for trial. Further, the modification scheme was implemented in an actual project with its effect verified by field tests. Research grasps the precise climate features of Panzhihua, which was previously not provided, and concludes that Panzhihua is a hot summer and warm winter zone. Accordingly, the original internal insulation was canceled, and the shading performance of the windows was strengthened instead. Test results suggest that the consequent change of SET* does not exceed 0.5 °C, whereas variations in the energy consumption depend on the room orientation. For rooms receiving less solar radiation, the average energy consumption increased by approximately 20%, whereas for rooms with a severe western exposure, the average energy consumption decreased by approximately 11%. On the other hand, the cost savings of removing the insulation layer are estimated at 177 million RMB (1 USD ≈ 6.5 RMB) per year. In conclusion, the research-based modification method proposed in this study can be an effective tool for improving building energy efficiency adapted to local conditions.

A Study on Sun Shading Reconstruction Design of Residential Buildings in Chongqing City

2014 ◽  
Vol 953-954 ◽  
pp. 1481-1487
Author(s):  
Liu Jin
Keyword(s):  
Energy Saving ◽  
Personal Experience ◽  
Design Pattern ◽  
Simulation Analysis ◽  
Residential Buildings ◽  
Residential Building ◽  
Specific Time ◽  
High Rise ◽  
Time Period ◽  
Chongqing City

Windows energy saving design of residential buildings has increasingly got the attention of people. Through a large number of surveys and analysis of residential buildings in Chongqing and consumers personal experience, the author finds problems and deficiency, and then proposes principles of residential buildings sun shading reconstruction in Chongqing city. Taking the high-rise residential building of one university in Chongqing as reconstruction sample, selecting a specific time period, the author recalculates sun shading coefficient with and without sun shading by using Ecotect software to do simulation analysis. Finally, the reasonable reconstruction design pattern is put forward through cases. Keywords: Buildings Sun Shading, Sun Shading Reconstruction, Energy Saving

scholarly journals Modern energy efficient technologies of high-rise construction

2018 ◽  
Vol 33 ◽  
pp. 02047 ◽  
Author(s):  
Inessa Lukmanova ◽  
Roman Golov
Keyword(s):  
Energy Saving ◽  
Energy Efficient ◽  
Residential Buildings ◽  
Unified Model ◽  
High Rise ◽  
Design Construction

The paper analyzes modern energy-efficient technologies, both being applied, and only introduced into the application in the construction of high-rise residential buildings. All technologies are systematized by the authors as part of a unified model of "Arrows of Energy-Efficient Technologies", which imply performing energy-saving measures in the design, construction and operation of buildings.

Advantages and Basic Areas of Application of Solar Concentrating Modules With Louvered Heliostats

2021 ◽  
pp. 152-181
Keyword(s):  
Energy Consumption ◽  
Environmental Impact ◽  
Energy Saving ◽  
Large Scale ◽  
Tall Buildings ◽  
Effective Energy ◽  
Building Projects ◽  
High Rise ◽  
Low Concentrations ◽  
Reducing Energy

In connection with the large-scale development of high-rise building projects recently in Russia and abroad and their significant energy consumption, one of the main principles in designing is the use of effective energy-saving technologies. Also, important aspects are reducing energy consumption and neutralizing the environmental impact of tall buildings. The most promising areas in the field of integration of solar modules (planar and concentrating) in the construction of buildings are development of BIPV technologies (roofing, film, facade materials), the integration of solar energy concentrators that do not require biaxial tracking (medium and low concentrations) on the facades and roofs of buildings (parabolic concentrators, lenses, and Fresnel mirrors), integration of highly concentrated modules on the roofs of buildings.

scholarly journals A regenerative braking energy recuperation from elevator operation in building by active rectifier

2021 ◽  
Vol 12 (2) ◽  
pp. 811
Author(s):  
An Thi Hoai Thu Anh ◽  
Luong Huynh Duc
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Urban Area ◽  
Regenerative Braking ◽  
High Rise ◽  
Active Rectifier ◽  
Energy Recuperation ◽  
Grid Simulation ◽  
Simulation Results ◽  
Active Rectifiers

Elevators- means of vertical transportation to carry people and goods are an indispensable part in offices, high-rise buildings, hospitals, commercial areas, hotels, car-parks when blooming urbanization develops worldwide. However, the level of energy consumption in elevator operation is significant, so energy saving solutions have been outlined and applied in practice. With frequent braking phases, regenerative braking energy is wasted on braking resistors. Therefore, this paper proposes regenerative braking energy recuperation method for elevator operation in building by active rectifiers enabling the braking energy to be fed back into utility grid. Simulation results conducted by MATLAB with data collected from OCT5B building-RESCO new urban area, Ha noi, Vietnam have verified saving energy of using active rectifiers replacing diode rectifiers up to 33%.

scholarly journals Comparison of consumption of fuel and energy resources on the construction site during the construction of low-rise and multi-storey housing construction

2020 ◽  
Vol 8 (3) ◽  
pp. 58-62
Author(s):  
Oleg Korol ◽  
Anastasija Guravleva
Keyword(s):  
Energy Consumption ◽  
Residential Buildings ◽  
Residential Building ◽  
Specific Consumption ◽  
Energy Resources ◽  
Housing Construction ◽  
Construction Site ◽  
High Rise

A multi-criteria assessment of the choice of a rational option for the construction of low-rise residential buildings, taking into account energy consumption on the construction site, was carried out. The structure of energy consumption in the construction of low-rise and high-rise housing, as well as a comparison of the specific consumption of energy resources in the construction of complex low rise and multi-storey monolithic residential building.

scholarly journals Predictive adaptation methodology for portfolio management of energy saving projects at metallurgical enterprises

2020 ◽  
pp. 52-64
Author(s):  
С.Г. Кійко
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Portfolio Management ◽  
Business Strategy ◽  
Adaptive Systems ◽  
Planning Process ◽  
Block Diagram ◽  
Energy Resource ◽  
Metallurgical Enterprise

A methodology for managing portfolios of energy saving projects at metallurgical enterprises is proposed. It forms a paradigm of predictive adaptation based on interconnected adaptive systems for planning, monitoring and managing changes and allows for forecasting energy consumption for complex technological processes and production, as well as modeling and evaluating the quality of the fuel and energy balance, in conditions of limited resources and risks, to form and select energy saving projects for implementation, while coordinating the priorities of the business strategy and the energy efficiency strategy of the metallurgical enterprise. A multi-level model of energy consumption of a metallurgical enterprise has been developed, which makes it possible to assess the effectiveness of energy-saving projects selected for implementation, objectively assess the share of each energy resource in the total flow, determine the energy intensity of a separate production, workshop, and the entire enterprise, and adjust the strategic direction in energy management. Using the model, it is possible to solve a number of tasks, including assessing the rationality and efficiency of the existing energy consumption structure at the enterprise, predicting the expected levels of energy consumption when changing the technology, product range and quality, and comparing various technologies and equipment in terms of energy efficiency, optimal management of energy flows taking into account changes in production conditions. The basic requirements for the organization of a planning and management system for a portfolio of energy saving projects at a metallurgical enterprise are formulated. The block diagram of a computer system for planning and managing a portfolio of energy saving projects at PJSC "Dneprospetsstal" is presented. The developed system of energy saving processes should be built into the system of enterprise processes, correspond to the strategic goals of the enterprise and the characteristics of the production process. The scheme of energy costs planning process implemented at the enterprise was considered.

Sign in / Sign up

Export Citation Format

Share Document