屋面建筑节能设计对策分析

本文从可持续发展的角度探讨了屋面建筑节能设计的科学策略,从生态节能、采暖节能、绿色环保太阳能屋顶节能等方面论述了科学节能设计的创新优势及具体措施,对建筑行业深化改革、提高人性化设计水平、充分满足人们日益增长的物质文化需求有重要的推动作用。     

浅析低温地板辐射分户热计量

本文主要对低温地板辐射分户热计量采暖系统进行分析。分析了分户热计量系统存在的问题及住宅采暖设计中可供选择的几种户内热计量系统形式;低温地板辐射采暖系统的节能特性及其适应性;分户热计量系统低温地板辐射采暖系统的设置要求。     

中国“低碳经济”的发展

面对全球气候变暖使人类生存受到影响,必须发展低碳经济。低碳经济是以低能耗、低排放、低污染为基础的经济模式。低碳经济有利于解决气候和能源危机以及经济的可持续增长,我国发展低碳经济面临许多制约因素,必须采取有效措施促进低碳经济发展,实现我国经济的绿色发展之路。     

The patterns of induced diffusion: Evidence from the international diffusion of wind energy

Recent years have seen growing academic interest in the concept of induced diffusion as efforts to address concerns about energy security and climate change have intensified. Research on induced diffusion explores whether policy tools or interventions can incentivise the diffusion of innovations. This body of literature has explored the effectiveness and efficiency of various policy interventions and as such has been mainly concerned with the determinants of diffusion. This paper is, by way of contrast, concerned with the patterns of diffusion when diffusion is induced. Drawing on the Bass and Davies models of innovation diffusion we develop a number of propositions that suggest that the patterns of diffusion are different when policy plays a role in the diffusion process. These propositions are then econometrically tested in the context of the international diffusion of wind energy in 25 OECD countries. We find that, as predicted, without effective and strong policy interventions, countries will have conventional logistic diffusion with very similar speeds of diffusion. However, as expected the patterns of diffusion take on a different functional form (Bass curve) when there is a strong policy inducement. We conclude by discussing the implications and limitations of these results and suggesting avenues for further research.     

Cultural legitimacy and framing struggles in innovation journeys: A cultural-performative perspective and a case study of Dutch nuclear energy (1945-1986)

This article contributes to the field of innovation studies by addressing the role of cultural legitimacy in technical innovation journeys. The article develops a new perspective that connects insights from discourse theory, interpretive approaches to culture, cultural sociology and social movement theory. In contrast to functionalist and structuralist approaches (which tend to conceptualize culture in a top-down deterministic manner), our cultural-performative perspective emphasizes agency, collective sensemaking and framing struggles. Cultural change is a contested process, in which various groups perform on public stages to influence the attitudes and opinions of relevant audiences who provide financial resources, protection or support relevant for innovation journeys. We demonstrate the usefulness of this perspective with a longitudinal case study of nuclear energy in the Netherlands (1945-1986), which encompasses both the creation of legitimacy in the 1950s and 1960s, and its contestation by an anti-nuclear movement in the 1970s, which halted the innovation journey.     

家庭直接能耗的碳排放影响因素研究进展

家庭能源消费对环境的影响已经成为可持续发展领域热点研究课题之一。为了更好地开展家庭直接能耗的碳排放研究,对国际上近20年的研究进行总结分析,将国际上对家庭直接能耗碳排放影响因素的研究模型归纳为自上而下模型、自下而上模型及综合模型三大类,并对各种模型进行了评价;国际上对家庭直接能耗碳排放影响因素的研究集中于家庭外部环境、家庭特征及家庭成员3个方面。分析表明:家庭直接能耗碳排放影响因素的研究模型由简单走向综合;所用数据由历史统计数据到与微观住户调研数据相结合;研究的层面由国家(地区)、城市、社区向家庭内部全面展开;分析的视角由单一的宏观分析,到宏观与微观分析相结合。在基本反映家庭直接能耗碳排放影响因素研究的最新态势的同时,提出了我国家庭直接能耗碳排放影响因素研究中值得注意的几个问题。     

基于城市流视角的环长株潭城市群空间联系分析

基于城市流强度理论模型,对环长株潭城市群的城市流强度值和城市流强度结构进行了测算分析,得出本城市群多数城市的城市流强度值偏小,城市间的空间联系偏弱,究其主要原因是各城市的综合经济实力不强,产业的外向度不高.再对城市流强度值与三次产业的关系进行多元线性回归分析,发现第二产业对城市流强度的影响大于第三产业,环长株潭城市群仍然处于以工业增长为主的初级发展阶段.最后,提出了环长株潭城市群各城市提高城市流强度和增强空间联系的对策.     

On the forecasting of the challenging world future scenarios

Logistic and power law methodologies for both retrospective and prospective analyses of extended time series describing evolutionary growth processes, in environments with finite resources, are confronted. While power laws may eventually apply only to the early stages of said growth process, the Allee logistic model seems applicable over the entire span of a long range process. On applying the Allee logistic model to both the world population and the world gross domestic product time series, from 1 to 2008 AD, a projection was obtained that along the next few decades the world should experience a new economic boom phase with the world GDP peaking around the year 2020 and proceeding from then on towards a saturation value of about 142 trillion international dollars, while the world population should reach 8.9 billion people by 2050. These results were then used to forecast the behavior of the supply and consumption of energy and food, two of the main commodities that drive the world system. Our findings suggest that unless the currently prevailing focus on economic growth is changed into that of sustainable prosperity, human society may run into a period of serious economical and social struggles with unpredictable political consequences.     

Forecasting of electricity costs based on an enhanced gray-based learning model: A case study of renewable energy in Taiwan

This work presents a novel gray-based cost efficiency (GCE) model that integrates the gray forecasting model into a two-factor cost efficiency curve model for renewable energy (RE) technologies and identifies the optimal forecasting model for power generation cost of RE technologies. The analytical framework of proposed GCE model improves short-term prediction of power generation cost, and can be applied during the early developmental stages for RE technologies. Empirical analysis is based on wind power data for Taiwan. Time lag of knowledge stock was simulated to represent the actual relationship between R&D expenditures and cost reductions in power generation by knowledge stock. Analytical results demonstrate the GCE model is a useful tool to quantify the influences of cost reductions in power generation. The implications of analytical results are that institutional policy instruments play an important role in RE technologies achieving cost reductions and market adoption. The proposed GCE model can be applied to all high-technology cases, and particularly to RE technologies. The study concludes by outlining the limitations of the proposed GCE model and directions for further research.