Valve-Shut off Scheme and Affected Zone Analysis of Multi-Sources Looped-Pipe Network Based on ARCGIS

2015 ◽  
Vol 713-715 ◽  
pp. 178-181
Author(s):  
Fang Wei
Keyword(s):  
Data Model ◽  
Functional Method ◽  
Calculation Model ◽  
Heat Sources ◽  
Pipe Network ◽  
Heat Network ◽  
Hydraulic Regime ◽  
Pipe Bursting ◽  
Loop Matrix ◽  
Basic Loop

Based on ArcGIS,Multi-heat sources and multi-loops complex heating network is Modeled and simulated ,and a functional method is put forward, by using Geodatabase data model,it can creat relating matrix and basic loop matrix of heat network quickly,and calculate Hydraulic Regime of heating Network with the Basic Circuit.When pipe-bursting accident occur in heating Network,along with changes in the logical network model.also the entire calculation model is changed.This method is applied to the Study of Valve-shut off scheme after tube-burst accident ,the heating Influence of the accident can be quantitative analyzed , also the degree of influence is compared when tube-burst accident happen at different place.

The Pose of Data Model and Research Based on Analysis of Intelligent Test Paper

2013 ◽  
Vol 303-306 ◽  
pp. 2203-2206
Author(s):  
Cai Li Fang ◽  
Lin Wu
Keyword(s):  
Data Model ◽  
Paper Analysis ◽  
Calculation Model ◽  
Test Paper ◽  
Fast Reaction ◽  
Analysis Algorithm ◽  
The Future ◽  
Education Measurement ◽  
Calculation Models

As a important part of teaching, Traditional paper analysis algorithm is complicated and not comprehensive enough. This paper according to the indicators of education measurement and improves the traditional calculation models, the system assesses the perfect calculation model, The teacher also can get the true and fast reaction to students' knowledge and the quality of the paper. This method thereby provides a convincing basis for the improvement on the future teaching and increase the effectiveness in teaching

scholarly journals A Hybrid Framework for High-Performance Modeling of Three-Dimensional Pipe Networks

2019 ◽  
Vol 8 (10) ◽  
pp. 441 ◽  
Author(s):  
Shaohua Wang ◽  
Yeran Sun ◽  
Yinle Sun ◽  
Yong Guan ◽  
Zhenhua Feng ◽  
...  
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
High Performance ◽  
3D Model ◽  
Performance Modeling ◽  
Three Dimensional ◽  
Network Data ◽  
Pipe Network ◽  
Pipe Networks ◽  
Hybrid Framework

Three-dimensional (3D) pipe network modeling plays an essential part in high performance-based smart city applications. Given that massive 3D pipe networks tend to be difficult to manage and to visualize, we propose in this study a hybrid framework for high-performance modeling of a 3D pipe network, including pipe network data model and high-performance modeling. The pipe network data model is devoted to three-dimensional pipe network construction based on network topology and building information models (BIMs). According to the topological relationships of the pipe point pipelines, the pipe network is decomposed into multiple pipe segment units. The high-performance modeling of 3D pipe network contains a spatial 3D model, the instantiation, adaptive rendering, and combination parallel computing. Spatial 3D model (S3M) is proposed for spatial data transmission, exchange, and visualization of massive and multi-source 3D spatial data. The combination parallel computing framework with GPU and OpenMP was developed to reduce the processing time for pipe networks. The results of the experiments showed that the hybrid framework achieves a high efficiency and the hardware resource occupation is reduced.

scholarly journals Methods of redundant schemes and software for optimization of heat source structure

2019 ◽  
Vol 102 ◽  
pp. 02003 ◽  
Author(s):  
Olga A. Edeleva ◽  
Evgeny A. Barakhtenko ◽  
Dmitry V. Sokolov
Keyword(s):  
Optimization Problem ◽  
Technological Development ◽  
Methodological Approach ◽  
Mathematical Formulation ◽  
Heat Sources ◽  
Network Configuration ◽  
Heat Network ◽  
Significant Correction ◽  
Discrete Nature ◽  
Source Structure

The optimization of heat sources in populated areas is associated with the optimization of their structure. The optimization problem is of linear discrete nature and is hard to formalize [1]. The aim of the optimization is to identify the types, sites and mix of equipment of the heat sources. Moreover, this optimization problem is closely related to the scheme and parameter optimization since the equipment mix of heat sources and their connection to existing (newly constructed) consumers determine the heat network configuration. The emerging new trends in the technological development of heating systems require a significant correction of stating and solving typical technical and economic problems to design these systems, which, in turn, predetermines the transition to a new level of their methodological support [2]. The paper proposes a mathematical formulation of the problem of optimal development of heat sources and considers a methodological approach to solving it, including effective load distribution between heat sources, and calculation of the optimal heat network configuration, given the minimum environmental impact of heat sources.

The Method Creating UML Model about Heat Pipe Network Data

2015 ◽  
Vol 713-715 ◽  
pp. 2511-2514
Author(s):  
Hai Feng Wu ◽  
Lin Ping Li ◽  
Jin Ming Yang
Keyword(s):  
Data Structure ◽  
Data Model ◽  
Use Case ◽  
Structure Model ◽  
Pipe Network ◽  
Static Structure ◽  
Modeling Tools ◽  
Application System ◽  
Pipe Networks ◽  
System Data

The UML model of database is a frame foundation of developing a database, this paper recommends a way to build data model based on the urban heating pipe networks by using VISIO[1] modeling tools. There are two ways that Use Case Diagram and Static Structure Diagram. The article describes the function of database application system, data structure and relationship on the heating-pipe network. The data structure model makes it more clear and lower redundancy when the developers are developing an application system of database.

scholarly journals Method of detection of district heating pipe network leakage using data monitoring of heat energy consumers

Vestnik IGEU ◽  
2021 ◽  
pp. 70-78
Author(s):  
S.V. Kosyakov ◽  
A.M. Sadykov ◽  
V.V. Sennikov ◽  
A.I. Tikhonov
Keyword(s):  
Information Systems ◽  
Boiler House ◽  
District Heating ◽  
Real Data ◽  
Pipe Network ◽  
Heat Network ◽  
Operating Modes ◽  
Pipe Networks ◽  
Heat Metering ◽  
Heating Networks

Currently, information systems to get data of metering devices are introduced to calculate the consumed thermal energy. The metering devices are installed at the thermal station of the consumers. However, the processing of these data is usually limited to the monthly data collection to calculate the payments and to monitor the output of the observed parameters beyond the established boundaries. The urgent issue is the possibility to use these data for the in-depth study of the processes, and, in particular, to detect district heating pipe network leakage. The authors have used both the methods and tools to model and analyze the operating modes of district heating pipe networks, methods to collect and monitor data of heat supply metering devices, methods to model district heating pipe networks in the geoinformation systems environment. The authors have proposed the method to detect the sections of the heat network where a heat medium leak has occurred. The difference of the method is the use only of the readings of the metering devices installed at consumers. The limitations of the application of the method and its implementation in geoinformation system environment are considered. An example is given to illustrate the possibility to detect the location of leakage based on the analysis of real data of the house heat metering devices collected during leakage and leakage elimination. Practical application of the developed method is discussed by the example of a real situation of leakage at the section of the heat network of the ISPU boiler house. The results obtained have confirmed the possibility to detect localization of leakage in heating networks based on the analysis of meter readings installed at consumers. The developed method can be applied in information systems to monitor the operating modes of district heating networks to search the places of accidents.

Sign in / Sign up

Export Citation Format

Share Document