Following the increased consciousness regarding global warming and other environmental issues, there is a growing urge in cities for a more rational energy supply and use in buildings. In parallel, the range of possible actions has broaden, from building refurbishment and construction options, through local energy production (solar panels, heat pumps) to the larger scale re-use of waste heat, g...

Urban areas consume up to 80 percent of the world's total energy production and are growing in size and complexity. At present, urban building energy consumption is largely considered solely in terms of individual building types, neglecting the effects of residents’ location-based activities that influence patterns in energy supply and demand. Here, we examine the spatial fluctuations of these ...

Several studies have addressed the impact of buildings on energy demand and consumption in recent years. Urban areas are set to become greater energy consumers and the residential building stock has a great deal. Energy efficiency regulations in buildings are recent, and most of the housing stock is far from meeting present standard and is responsible of a high percentage of global energy consu...

The paper illustrates some aspects of energy conversion processes during underground electric train operation. Energy conversion processes are explained using exergy, in order to support transport system sustainability. Loss of exergy reflects a loss of potential of energy to do work. Following the notion that life in Nature demonstrates sustainable energy conversion, we approach the sustainabi...

in this research, energetic andexergetic analysis of calcium oxide formation, co2 emissions, andenvironmental effects during the clinker production process in rotary kilnare investigated. first the energy and exergy analysis of rotary kiln were carried out according to the first and second law of thermodynamics based on dead state, respectively. consequently, the amount of co2 emissions associa...

Built-up areas and more particularly buildings are important energy-consumers. If, in France, energetic regulation and principles of town planning intended to improve the energy efficiency do exist, we will show the limits of the methods of calculation for solar radiation and the necessity of making solar simulations on a realistic urban model. The paper will explain the current lack of 3D urba...