District Heating Networks Calculation and Optimization
نویسنده
چکیده
The first step in studying the behavior of a pipe network is to identify the objectives that must be attained and the physical and logical problems that must be solved; this aim can be achieved by building a suitable model of the network. The next step must be the operation of the model (which, for example, in the case of numerical models consists of using an appropriate algorithmic procedure) to obtain the required answers to the set problem. Then the most common engineering objectives, the simulation and the design calculation or optimization, are identified and discussed.
منابع مشابه
Efficient Physical Modelling of District Heating Networks
A mathematical physical model for dynamic simulation of flow and temperature in district heating networks (DHN) is proposed. The network structure is described by means of a graph-theoretical approach where the network elements are pipe sections, consumers and heat sources. The governing equations for hydraulic flows and heat distribution through pipe networks are presented. In addition, proper...
متن کاملMethod of Evaluation of Efficiency Improvement Potential for District Heating Systems with Focus on Variable Speed Centrifugal Pumps
The goal of this research is the derivation of method for evaluation of efficiency improvement potential for district heating systems with focus on variable speed centrifugal pump. The effectiveness of the usage of the proportional pressure control is compared with the constant pressure control. This is why, energy calculation analyses have been realized for variable speed centrifugal pumps, an...
متن کاملAnalysis of Hydraulic and Heat Relations in Heat Networks; Calculation in Real Locality
The paper deals with heat networks, which are parts of district heating systems. There was created a complex computational program as a tool for calculation of pressure, flow and temperature ratios in particular parts of the defined heat network. The article is mainly focused on solution of hydraulic and heat relations in real locality.
متن کاملAn optimization approach for district heating strategic network design
District heating systems provide the heat generated in a centralized location to a set of users for their residential and commercial heating requirements. Heat distribution is generally obtained by using hot water or steam flowing through a closed network of insulated pipes and heat exchange stations at the users’ locations. The use of optimization techniques for the strategic design of such ne...
متن کاملA New Hybrid Genetic Algorithm For The District Heating Network Problem
322 Abstract — In this paper we propose a new hybrid genetic algorithm with an adaptive fitness function to solve the problem of extending district heating networks, related to the prize-collecting Steiner tree problem. The multi-criterial optimization is achieved by means of weighting the profit and costs, depending on the application. The experimental results showed that the algorithm works w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011