The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Buildings represent 40% of total primary energy use in the U.S., and researchers have recognized the necessity of making office spaces more energy efficient. To reduce energy consumption, it is important to take into account buildings occupants' behavior into account. The difference between simulated, estimated and real power consumption in buildings reflects the need to search for more accurate ways...
Green computing has become one of the hottest trends in recent years. In this research area, the major purpose is to reduce the energy consumption as well as the CO2 emission. Obviously, this topic has been the important issue in the field of electronic and computer engineering. In fact, energy factor might be considered to be a significant cost when running any computing system. Basically, energy...
Certain regions of the world have successfully implemented harmonized product compliance regulations, such as the European Free Trade Association and the Customs Union. Some product types or focus areas have moved to a more harmonized compliance approach and, with this, the regulations and standards are easier to enforce, simpler for consumers to understand, and more efficient for manufacturers to...
Buildings are significant contributors to global energy consumption and their energy efficiency is an important issue for future world sustainability. In our project, we built an energy efficiency research testbed in a USGBC (United States Green Building Council) LEED (Leadership in Energy and Environmental Design) “gold” certificated green building. We monitored the energy consumption and studied...
Household energy use is growing and energy prices are rising. A growing need exists among households to get more insights into their energy use. ICT can offers solutions here in terms of smart metering and home energy management. Through our research, we wanted to get a view on the adoption potential, willingness to pay and adoption determinants for these tools. Our results indicate a substantial...
As technologies advance constantly, households respond to energy efficiency improvement with higher energy consumption per unit. The current rapid economic development and the other latent reason - rebound effect induce such phenomenon. Rebound effect has long been ignored in the household energy efficiency of China while it has been recognized widely all over the world. Since there exists a high...
Seven typical manufacturing processes of iron and steel corporation are structured. The energy consumption and environmental loads of these processes are separately analyzed, and the indexes of them are summarized and compared. Resource and energy efficiency of short process are obviously higher than long process. Otherwise, indexes of sheet bar processes are the best in long processes, especially...
In order to analyze the advantage of using low grade superheated steam to process superfine coal, the experiments are carried out with the self-developed steam flow pulverization system. The results reveal that the temperature of superfine coal from the superheated steam bag filter is lower than 80°C,which shows that all types of superfine coal can be prepared by low-grade superheated steam.In the...
The effect of plasma produced and the power energy efficiency on the generation of hydrogen peroxide in high voltage discharge process were investigated. The energy put into the discharge region was used to generate active radicals, then to form hydrogen peroxide and nitrate. With increasing the voltage, the energy efficiency of hydrogen peroxide production decreased. While increasing air flow rate...
To get reasonable and reliable index of performance of combined cooling, heating and power (CCHP) system, a new performance evaluation method of the system, the comprehensive efficiency, is proposed. The method is based on energy, exergy and energy analyses. An example is given to illustrate application of the new method in this study. The analysis results show that the comprehensive efficiency is...
The energy sustainable development levels of Western Regions are significant to country's energy security and social economy's sustainable development. Using the factor analyze method to assess the energy sustainable development level of 2007, the results shown that the energy sustainable development level existence huge difference in Western Regions, the energy efficiency and the environmental impact...
Based on the modeling and analysis of the glass sun-shading mechanism the hourly building cooling energy consumption of an office building in Guangzhou was calculated for different building glass with various inferred transmitted rates. The results showed that the glass sun shading coefficient and the building cooling energy could be significantly reduced by decreasing the inferred transmitted rate...
With the purpose of investigating the thermal efficiency of steam-injection boiler, the thermal efficiency calculation model was built. Basing on the measured data from Xianhe oil production plant in Shengli oil filed, both energy efficiency and exergy efficiency were calculated and the boiler operation state was analyzed. Moreover, the influences of smoke temperature, excess air ratio and steam quality...
Computer power management features - standard in Windows and Macintosh operating systems - place monitors and computers (CPU, hard drive, etc.) into low-power ldquosleep modesrdquo after a period of inactivity. Simply touching the mouse or keyboard ldquowakesrdquo the computer and monitor in seconds. While monitors are often configured to sleep, unfortunately fewer than 10% of US-based computers are...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.