EXPERIMENTAL STUDY OF A LARGE TEMPERATURE DIFFERENCE THERMAL ENERGY STORAGE TANK FOR CENTRALIZED HEATING SYSTEMS

被引：10
|
作者：
Sun, Jian [1 ]
Hua, Jing [2 ]
Fu, Lin [2 ]
Zhang, Shigang [2 ]
机构：
[1] North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing, Peoples R China
[2] Tsinghua Univ, Dept Bldg Sci, Beijing, Peoples R China
来源：
THERMAL SCIENCE | 2018年 / 22卷 / 01期
关键词：
thermal energy storage; turbulence factor; thermocline; STRATIFICATION; MARKET; PLANTS; MODELS;
D O I：
10.2298/TSCI160720173S
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Decreasing the backwater temperature of the primary pipe in a centralized heating system is one successful way to increase the heating capacity and recover different kinds of industrial low-grade heat from the system. A new system combining an energy storage tank and a heat pump is introduced in this study as the key device in this system, so the temperature difference of this thermal storage tank could be over 25 degrees C. To improve the thermal energy storage tank design, a mathematical model considering disturbance factor is given, an experimental system is built, and good agreement is found when the experimental results are compared with simulation results.
引用
收藏
页码：613 / 621
页数：9
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