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Life cycle assessment (LCA) as method, large-scale public buildings which areas are over 20,000 square meters each in Hangzhou of hot summer and cold winter region as objects, the paper studies on the features and rules of CO2 emission and energy consumption. With three typical cases being selected among office, health care and campus buildings, variation of carbon emission indexes are calculated...
In educational buildings a significant component of the energy used is spent in illuminating the interior of the building. As the energy costs rise, increasing effort has gone into minimizing the energy consumption of lighting installations. This effort could follow three basic directions: new more efficient equipment (lamps, control gear, etc.), utilization of improved lighting design practices (localised...
Empirical techniques for characterizing electrical energy use now play a key role in reducing electricity consumption, particularly miscellaneous electrical loads, in buildings. Identifying device operating modes (mode extraction) creates a better understanding of both device and system behaviors. Using clustering to extract operating modes from electrical load data can provide valuable insights into...
The availability of light detection and ranging (LiDAR) datasets over urban areas has significant potential to facilitate the automatic parameterization of sophisticated building energy models. In this paper we present an approach to building architectural typology classification using LiDAR data and decision tree regression. By integrating a suite of LiDAR derived building morphological characteristics...
Smart meters, as a new technical innovation, are assumed to be able to bring a more sustainable future especially for the household sector. Behavioral change of customers induced by such advanced technology infrastructure is a guarantee to achieve energy savings. Energy information feedback solutions can improve such change. This paper performs a socio-technical review on the feedback system based...
Nowadays energy-saving represents a mandatory requirement for building. Several efforts have been done both to reduce energy consumption and to promote alternative generation sources. By the way, in most of the existing systems these two faces of energy-conservation are managed in isolation. In this paper, we propose a novel holistic vision for a smart home environment, in which energy administration...
In order to study the effect of common smoke control model, the numerical simulation combined with the full size experimental have been used to analyze effect of several modes, which composed with the smoke screen, mechanical smoke and air curtain, and the smoke temperature distribution, concentration distribution, and smoke down time between these model is compared. The results show that smoke preventing...
The awareness of architecture students on building energy efficiency technologies plays a key role on the building energy conservation. A survey has been carried out to investigate the awareness of building energy efficiency technologies in architecture students in Zhejiang University of Technology. The survey results indicate that architecture students have insufficient knowledge of building energy...
A method is proposed to assign the priority for indicators in this paper. This proposed method combines the group analytic hierarchy process (group AHP) and cluster analysis, therefore, it highlights the democracy and avoids the extreme individual preference in group decision. This method has been used to weight 17 identified indicators for assessing the energy efficiency of residential building in...
This article adopts the Primary Energy Ratio (PER) to evaluate the performances of air conditioning heat and cold sources (refrigerator/ electric heat pump, LiBr absorption unit, gas air conditioning unit and boiler) and compares different Heat and Cold Sources in building Air Conditioning. The result shows that air conditioning unit driven by electrical power is most suitable for the places with...
Room air conditioner (RAC) is widely used as a indoor thermal environment conditioning equipment in residential buildings, the characteristics of space cooling load influence RAC design and indoor environment dramatically. Space cooling load, including sensible cooling load and latent cooling load, sensible heat ratio (SHR) at different times are calculated in an apartment bedroom in Grangzhou and...
A software TRNSYS is used to simulate operation characteristics of ground-coupled heat pump for an office building. It analysis the soil temperature changes and ground source heat pump system efficiency last several years in different climates conditions. The results show that the greater the difference between cooling load and heat load, the greater the annual average temperature of soil increases,...
Considering the fact that high-rise residential buildings are mushrooming in recent years in the coastal cities of Liaoning, a questionnaire survey of such basic information as building type, envelope information, the inhabitants' lifestyle and thermal satisfaction and a site investigation into the thermal environment of typical high-rise apartments for a consecutive week in the winter of 2009-2010...
Rural architecture energy-saving is one of the most important branches in the field of building energy-saving. Central China area belongs to the hot summer and cold winter zone in the view of thermal design in China and there are many problems in the aspect of rural architecture energy-saving. Focusing on these problems, by analyzing the main characteristics of the application of rural architecture...
This article states the necessity of adopting solar energy in new countryside construction, introduces the principles and applications of solar energy, points out the problems in promotion of solar energy and put forward solutions.
As the energy supply lack and climate deterioration, carbon emissions problem is more and more concerned by the world. For construction industry, its related products consume large amount of energy and lead to heavy carbon emissions. In order to provide a rule in evaluating low-carbon performance of buildings, an evaluation frame is given from both life-cycle and low carbon of buildings, and detailed...
The paper analysed a sustainable building which is demonstration project at its conceptual phase. The analysis includes the building' s energy-consumption level, the climate of where the building seats, building orientation, architectual enviornment and energy-saving measures, etc. Thus, a rational sustainable building design decision which can avoid an unsustainable building at the very begining,...
In modern buildings the majority of sensors and actuators used for controlling temperature, roller shutters or alarm systems are cable wired. The use of wireless sensor nodes in such a scenario would facilitate the installation and would reduce costs significantly. However the main problem is the energy consumption of the nodes. Real time behavior and lifespans of several years seem to be conflictive...
This poster presents a multi-touch navigation interface for a building energy management system with a three-dimensional data model. It extends well established “rubber-band” 2D interaction gestures to work with a 3D world-in-hand paradigm with the help of a navigation widget to select the active manipulation axis. A nested, semi-transparent display of the data hierarchy requires careful selection...
The Combined cooling, heating and power (CCHP) system should be operated under the optimal scheme to meet the varying demand for cooling, heating and electricity and to reduce cost and save energy for buildings. Based on the analysis of the energy flow, a mixed integer linear program (MILP) optimal model has been developed. The objectives are to minimize the annual total cost, primary energy consumption...
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