This work is focused on the planning of rational heating systems for urban areas. District heating is an important option to supply heat to the users in urban areas. The energy sustainability of such option depends on the annual energy request, the population density and the efficiency in heat...

This paper reports a procedure to optimise district heating networks on the basis of second law analysis. The approach is derived from the exergonomic theory. A cost function has been set up and an iterative procedure was employed to determine the minimum value corresponding to the optimal pipe...

Biomass combined heat and power (CHP) plants connected to district heating (DH) networks are recognized nowadays as a very good opportunity to increase the share of renewable sources into energy systems. However, as CHP plants are not optimized for electricity production, their operation is...

There are various governmental policies aimed at reducing the dependence on fossil fuels for space heating and the reduction in its associated emission of greenhouse gases. DHNs (District heating networks) could provide an efficient method for house and space heating by utilizing residual...

This paper presents system simulation and parametric study of the demonstration system of decentralized cooling in district heating network. The monitoring results obtained from the demonstration were calibrated and used for parametric studies in order to find improved system design and control....

We have analyzed the application of decision analysis and risk management tools to solve practical problems associated with Climate Change and Risk Detection in the financial services industry. Geoengineering, which is described as an intentional modification of earth’s environment to mitigate...

Standard economic intuition of revealed preference implies that when two parties freely enter into a contract then neither should be worse off. In this study, we develop a simple model showing that introducing the opportunity to contract can lower welfare for some, and perhaps all, contracting...

This article studies the static pricing problem of a network service provider who has a fixed capacity and faces different types of customers (classes). Each type of customers can have its own capacity constraint but it is assumed that all classes have the same resource requirement. The provider...

Drei große Reformenpakete und eine Reihe kleinerer Begleitmaßnahmen prägen das renten¬politische Erbe der rot-grünen Bundesregierung. Einerseits greifen sie Trends in der Reformpolitik seit Beginn der 90er Jahre auf. So verstärkt die Rentenstrukturreform 2001 beispielsweise die...