Corrosion failure analysis of air vents installed at heat transport pipe in district heating system

H Lee, H Chae, J Cho, WC Kim, JC Jeong… - Corrosion Science …, 2020 - koreascience.kr
Two air vents situated on a heat transport pipe in district heating system were exposed to the
same environment for 10 years. However, one air vent was more corroded than the other. It …

[PDF][PDF] Failure analysis of air vent connected with heat supply pipeline under manhole

J Cho, H Chae, H Kim, JG Kim, WC Kim… - Corrosion Science and …, 2020 - j-cst.org
The air vent connected to a heat supply pipeline in the district heating system has been used
to eliminate the existing air in the pipe, which has a detrimental effect on corrosion durability …

Corrosion failure analysis of the convection part of district heating peak load boiler

Y Kim, H Chae, M Hong, MJ Song, J Cho… - Corrosion Science …, 2019 - koreascience.kr
Corrosion failure in the convection part of peak load boiler (PLB) of the district heating
system led to water leakage. Herein, Internal Rotary Inspection System (IRIS) inspection was …

Failure analysis on localized corrosion of heat transport pipe in district heating system

YS Kim, H Chae, WC Kim, JC Jeong… - Corrosion Science …, 2020 - koreascience.kr
In this study, a corrosion failure analysis of a heat transport pipe was conducted, as the
result of a pinhole leak. Interestingly, the corrosion damage occurred externally in the …

Corrosion failure analysis of condensate pre-heater in heat recovery steam generator

H Chae, WC Kim, H Kim, JG Kim, KM Kim… - Corrosion Science and …, 2021 - koreascience.kr
In this work, we have performed a corrosion failure analysis of a leaking tube connected to
an upper header of a condensate pre-heater in a heat recovery steam generator. It was …

Failure Analysis of Stress Reliever in Heat-Transport Pipe of District Heating System

J Cho, H Chae, H Kim, JG Kim, WC Kim… - Corrosion Science and …, 2022 - koreascience.kr
The objective of the present study was to perform failure analysis of double-layered bellow
(expansion joint), a core part of stress reliever, used to relieve axial stresses induced by …

Investigation of Pitting Corrosion of Copper Heat-Return Pipe in District Heating

KH Lee, MJ Song, TU Kang, WC Kim… - Corrosion Science and …, 2024 - koreascience.kr
This work examined pitting corrosion failure of a copper heat-return pipe used in a district
heating system. The copper pipe was corroded with a 48% reduction in thickness due to …

Failure Analysis of an Inlet Pipe of a Governor Valve in a Steam Turbine of a District Heating System

H Chae, WC Kim, H Kim, JG Kim… - Corrosion Science and …, 2022 - koreascience.kr
The objective of this study was to perform failure analysis of an inlet pipe located in a
governor valve of a steam turbine in a district heating system. During the operation, the …

Failure Analysis of High-density Polyethylene Pipe in Heat-transport Infrastructure of District Heating System

H Chae, MJ Song, SY Lee - 폴리머, 2024 - dbpia.co.kr
지역난방시스템에서 열은 열 수송 시설을 통해 사용자 측에 공급되고 있으며, 열 수송 시설은
온수를 공급하는 강관, 열 손실을 막는 폴리우레탄 폼, 이를 외부 충격과 오염으로부터 보호하는 …

Integrity Assessment of Obsolete Thermal Storage Tank in District Heating System

D Yun, H Chae, H Kim, JG Kim, WC Kim… - Korean Journal of …, 2020 - scholarx.skku.edu
The thermal storage tank in a district heating system is a component that stores excess heat
during normal operation and releases the stored heat to increase the efficiency of the …