| Srl | Item |
| 1 |
ID:
168645
|
|
|
|
|
| Summary/Abstract |
The building energy efficiency labeling (BEEL) scheme has been adopted in China since 2008. However, until now, its effect on the actual building energy efficiency has not been accurately established. The objective of this study was to investigate this effect through a case study in Shanghai, China. Additionally, by performing a thorough review, potential barriers for implementing the BEEL scheme in major areas of China were analyzed. The results indicated that 1) the energy use intensity of labeled commercial office buildings in Shanghai followed a normal distribution, with an average value of 79.14 kWh/(m2a); 2) the energy-saving rate and energy consumption exhibited an inversely proportional relationship for residential buildings, but this relationship was not applicable for commercial office buildings; 3) for Shanghai, ground source heat pumps (GSHPs) and variable refrigerant volume systems are more appropriate for commercial office buildings, and GSHPs and split air conditioners are more useful for residential buildings. The potential barriers were classified into three main categories—technical, political, and awareness—and corresponding solutions were proposed. The authors hope that this study can promote the adoption of the BEEL scheme in China.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2 |
ID:
168326
|
|
|
|
|
| Summary/Abstract |
Building energy regulation, as part of an energy policy, is launched for governing energy-efficient building design with an ultimate goal to attain mitigation of climate change. In most of the current building energy regulations, there is no requirement for assessing the environmental effectiveness of the energy-efficient measures involved. Building professionals cannot ensure that the energy saving can offset the extra embodied energy consumed for compliance with a design regulation. This study investigates the environmental effectiveness of regulatory requirement on energy-efficient building design. A Code of Practice for Overall Thermal Transfer Value in Buildings implemented in Hong Kong was used as a case study. Through a survey and energy simulations, it revealed that implementation of this mandatory building design regulation in Hong Kong is successful in terms of both saving in building operating energy and recovering in embodied energy of the extra building materials used. Policy makers are advised to consider incorporating an assessment phase into the development of building energy regulation to examine the environmental effectiveness of regulatory requirement on energy-efficient building design. It is envisaged that the methodology developed in this study can be applied to other cities for evaluating the environmental effectiveness of implementing a building energy regulation.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|