Long term performance of vacuum insulation panels in hybrid insulation district heating pipes

被引：5
|
作者：
Berge, A. [1 ]
Adl-Zarra, B. [1 ]
机构：
[1] Chalmers, Sven Hultins Gata 8, SE-41296 Gothenburg, Sweden
来源：
15TH INTERNATIONAL SYMPOSIUM ON DISTRICT HEATING AND COOLING (DHC15-2016) | 2017年 / 116卷
关键词：
TWIN;
D O I：
10.1016/j.egypro.2017.05.080
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper presents studies on district heating pipes where a vacuum insulation panel replace the innermost layers of polyurethane around the service pipe. One of the main challenges are their long term performance. Prototypes have been tested both in field in a district heating grid and in laboratory with a constant temperatures. The results indicate that the panels are intact after four years in field. In the laboratory, the pipes have been exposed to a constant temperature of 115 degrees C for over three years without damage to the panels. (C) 2017 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：334 / 342
页数：9
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