Accelerated ageing of plastic jacket pipes for district heating

被引：18
|
作者：
Leuteritz, Andreas [1 ]
Doering, Klaus-Dieter [2 ]
Lampke, Thomas [3 ]
Kuehnert, Ines [1 ]
机构：
[1] Leibniz Inst Polymerforsch Dresden eV, Hohe Str 6, D-01069 Dresden, Germany
[2] IMA Mat Forsch & Anwendungstech GmbH, Wilhelmine Reichard Ring 4, D-01109 Dresden, Germany
[3] TU Chemnitz, Werkstoff & Oberflachentech, D-09107 Chemnitz, Germany
来源：
POLYMER TESTING | 2016年 / 51卷
关键词：
Polyurethane; Accelerated ageing; Plastic jacket pipes; Life time;
D O I：
10.1016/j.polymertesting.2016.03.012
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The axial shear strength of plastic jacket pipes consisting of a steel medium pipe surrounded by polyurethane insulation and a casing of polyethylene was determined after service life. Recalculation of the physical life to equivalent life at 120 degrees C with the respective Arrhenius equation showed the envelope of lifetime ends much earlier than stated as minimum requirement in EN253. A method to determine an apparent activation energy considering additionally the oxidative degradation of PUR in plastic jacket pipes is presented. Enabled gas exchange within accelerated ageing similar to 30 years of life time resulted in an apparent activation energy of 95 kJ/mol, and additionally a further degradation, obviously due to corrosion, was found. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：142 / 147
页数：6
相关论文
共 50 条
  • [1] Optimal conditions for accelerated thermal ageing of district heating pipes
    Vega, A.
    Yarahmadi, N.
    Jakubowicz, I.
    16TH INTERNATIONAL SYMPOSIUM ON DISTRICT HEATING AND COOLING, DHC2018, 2018, 149 : 79 - 83
  • [2] Determining the useful life of district heating pipes: Correlation between natural and accelerated ageing
    Vega, Alberto
    Yarahmadi, Nazdaneh
    Jakubowicz, Ignacy
    POLYMER DEGRADATION AND STABILITY, 2020, 175 (175)
  • [3] Determination of the long-term performance of district heating pipes through accelerated ageing
    Vega, Alberto
    Yarahmadi, Nazdaneh
    Jakubowicz, Ignacy
    POLYMER DEGRADATION AND STABILITY, 2018, 153 : 15 - 22
  • [4] Cyclic axial loads and thermal ageing of district heating pipes
    Vega, Alberto
    Yarahmadi, Nazdaneh
    Jakubowicz, Ignacy
    ENERGY REPORTS, 2021, 7 : 105 - 109
  • [5] Failure analysis and durability of preinsulating district heat pipes
    Puentes-Parodi, Alejandro
    Gehde, Michael
    Leuteritz, Andreas
    Kuehnert, Ines
    POLYMERS FOR ADVANCED TECHNOLOGIES, 2018, 29 (03) : 1048 - 1055
  • [6] Influence of oxidation on radiative heat transfer in polyurethane insulation used for district heating pipes
    Domhagen, Fredrik
    Adl-Zarrabi, Bijan
    11TH NORDIC SYMPOSIUM ON BUILDING PHYSICS (NSB2017), 2017, 132 : 309 - 314
  • [7] Determination of essential parameters influencing service life time of polyurethane insulation in district heating pipes
    Yarahmadi, Nazdaneh
    Vega, Alberto
    Jakubowicz, Ignacy
    15TH INTERNATIONAL SYMPOSIUM ON DISTRICT HEATING AND COOLING (DHC15-2016), 2017, 116 : 320 - 323
  • [8] Development of a Non-destructive Testing Method for Assessing Thermal Status of District Heating Pipes
    Liden, H. P.
    Adl-Zarrabi, B.
    JOURNAL OF NONDESTRUCTIVE EVALUATION, 2020, 39 (01)
  • [9] Development of a Non-destructive Testing Method for Assessing Thermal Status of District Heating Pipes
    H. P. Lidén
    B. Adl-Zarrabi
    Journal of Nondestructive Evaluation, 2020, 39
  • [10] Longevity of Optical Disc Media: Accelerated Ageing Predictions and Natural Ageing Data
    Iraci, Joe
    RESTAURATOR-INTERNATIONAL JOURNAL FOR THE PRESERVATION OF LIBRARY AND ARCHIVAL MATERIAL, 2017, 38 (03) : 273 - 298
12345