STEADY STATE AND DYNAMIC MODELING OF AN INDIRECT DISTRICT HEATING SYSTEM

Author:

LI L.1,ZAHEERUDDIN M.1,CHO SUNG-HWAN2,JUNG SANG-HOON3

Affiliation:

1. Department of Building, Civil and Environmental Engineering, Concordia University, 1455 de Maisonneuve, Boulevard West, Montreal, Quebec H3G1M8, Canada

2. Department of Mechanical and Automotive Engineering, Jeonju University, 560-759 Hyoja-dong, Jeonju, Korea

3. Department of Energy Engineering, Jeonju University, 560-759 Hyoja-dong Jeonju, Korea

Abstract

An indirect district heating system (IDHS) with heated floor area of 851 031 m2 and ten heat exchange stations was modeled in this study. An aggregated steady state model for the system was developed to study the impact of important system parameters. A dynamic model of the IDHS was developed based on energy balance principles. The dynamic model consists of sub-system models such as boiler, pipe network, heat exchanger, terminal heater and zone models. Simulation results of the dynamic responses show that the overall efficiency of the IDHS system is 78.7%, and the two highest heat loss components are the boiler heat losses and the secondary water makeup loss.

Publisher

Springer Science and Business Media LLC

Subject

Fluid Flow and Transfer Processes,Renewable Energy, Sustainability and the Environment,Control and Systems Engineering

Reference12 articles.

1. X. Liu, The Calculating Method of Design and Selection on Plate Heat Exchanger, Air Conditioning Design 1 (China Hunan Science and Technology Publishing House, 1997) pp. 82–107.

2. Y. Li and P. He, Heating Engineering (China Construct Industry Press, 1980) pp. 112–127.

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