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Mathematical Problems in Engineering
Volume 2018, Article ID 4852361, 16 pages
https://doi.org/10.1155/2018/4852361
Research Article

Determination and Application of Comprehensive Specific Frictional Resistance in Heating Engineering

1College of Energy and Environmental Engineering, Hebei Institute of Architecture and Civil Engineering, Zhangjiakou, Hebei 075000, China
2College of Mathematics and Physics, Hebei Institute of Architecture and Civil Engineering, Zhangjiakou, Hebei 075000, China

Correspondence should be addressed to Yongjiang Shi; moc.361@2216194111yy

Received 9 July 2017; Revised 12 November 2017; Accepted 22 November 2017; Published 4 January 2018

Academic Editor: Andrea L. Facci

Copyright © 2018 Yanan Tian et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this study, we analyze the deficiencies of specific frictional resistance in heating engineering. Based on economic specific frictional resistance, we put forward the concept of comprehensive specific frictional resistance, which considers the multiple factors of technology, economy, regulation modes, pipe segment differences, and medium pressure. Then, we establish a mathematical model of a heating network across its lifespan in order to develop a method for determining the comprehensive specific frictional resistance. Relevant conclusions can be drawn from the results. As an application, we have planned the heating engineering for Yangyuan County in China, which demonstrates the feasibility and superiority of the method.