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Evaluation of Aging Assets On Workers Health and Safety in A Typical LNG Company
Subject area: Science,Engineering and Technology · Area of research: Occupational Health & Safety
DOI: https://doi.org/10.64388/IREV9I12-1719158
Abstract
This study evaluates the effects of aging assets on worker safety in a typical LNG company through the development and application of a structured Aging Asset Index (AAI) across key equipment classes, including turbines, heat exchangers, boilers, cryogenic systems, columns, strainers, and the main cryogenic heat exchanger. A mixed-methods approach was employed, combining questionnaire responses from 50 operations, maintenance, engineering, and HSE personnel with in-depth interviews of 10 subject-matter experts. Quantitative analysis was carried out using descriptive statistics, correlation analysis, t-tests, and multiple regression modelling. Results of descriptive statistics show that; 77.4% of respondents perceived aging equipment as key contributor to unsafe work conditions (WM= 3.87>3.00), 77% accepted that good workers health and safety experience (WM=3.85>3.00), 78.4% accept presence of integrity management practices (WM=3.92>3.00) while 75.8% accepted presence of digitalization and preventive maintenance (WM=3.79>3.00). Pearson correlation analysis results revealed that there is positive and significant relationship between. Perception of Aging Assets and Integrity Practices (r = 0.61, p=0.000), Perception of Aging Assets and Digitalization ((r = 0.55, p=0.000) as well as Perception of Aging Assets and Worker Health & Safety Experience ((r = 0.59, p=0.000). Multi-linear regression analysis was carried out to examine the impact of Perception of Aging Assets, Integrity Practices and Digitalization on Worker Health & Safety Experience. And the results revealed that Perception of Aging Assets (β=0.28, p=0.003), Integrity Practices ((β=0.32, p=0.001), and Digitalization (β=0.26, p=0.012) all have positive and significant impact on Worker Health & Safety Experience. Qualitative results, synthesised in thematic figures, further highlight deferred maintenance, insulation and corrosion degradation, spare-parts obsolescence, and reactive maintenance practices as key contributors to elevated worker risk. The study concludes that aging assets have a measurable and impact on worker health and safety in LNG operations and confirms the AAI as an effective diagnostic and decision-support tool. It is recommended that LNG operators embed AAI-based thresholds into integrity management systems, strengthen predictive maintenance and digital monitoring, and prioritise asset renewal strategies to reduce worker exposure and enhance overall safety performance.
How to cite this paper
@article{1719158,
author = {Goodhead Divine Tamunoidiakiri, Prof. John N. Ugbebor, Dr. Akuro Big-Alabo},
title = {Evaluation of Aging Assets On Workers Health and Safety in A Typical LNG Company},
journal = {Iconic Research And Engineering Journals},
year = {2026},
volume = {9},
number = {12},
pages = {2176-2223},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1719158.pdf},
abstract = {This study evaluates the effects of aging assets on worker safety in a typical LNG company through the development and application of a structured Aging Asset Index (AAI) across key equipment classes, including turbines, heat exchangers, boilers, cryogenic systems, columns, strainers, and the main cryogenic heat exchanger. A mixed-methods approach was employed, combining questionnaire responses from 50 operations, maintenance, engineering, and HSE personnel with in-depth interviews of 10 subject-matter experts. Quantitative analysis was carried out using descriptive statistics, correlation analysis, t-tests, and multiple regression modelling. Results of descriptive statistics show that; 77.4% of respondents perceived aging equipment as key contributor to unsafe work conditions (WM= 3.87>3.00), 77% accepted that good workers health and safety experience (WM=3.85>3.00), 78.4% accept presence of integrity management practices (WM=3.92>3.00) while 75.8% accepted presence of digitalization and preventive maintenance (WM=3.79>3.00). Pearson correlation analysis results revealed that there is positive and significant relationship between. Perception of Aging Assets and Integrity Practices (r = 0.61, p=0.000), Perception of Aging Assets and Digitalization ((r = 0.55, p=0.000) as well as Perception of Aging Assets and Worker Health & Safety Experience ((r = 0.59, p=0.000). Multi-linear regression analysis was carried out to examine the impact of Perception of Aging Assets, Integrity Practices and Digitalization on Worker Health & Safety Experience. And the results revealed that Perception of Aging Assets (β=0.28, p=0.003), Integrity Practices ((β=0.32, p=0.001), and Digitalization (β=0.26, p=0.012) all have positive and significant impact on Worker Health & Safety Experience. Qualitative results, synthesised in thematic figures, further highlight deferred maintenance, insulation and corrosion degradation, spare-parts obsolescence, and reactive maintenance practices as key contributors to elevated worker risk. The study concludes that aging assets have a measurable and impact on worker health and safety in LNG operations and confirms the AAI as an effective diagnostic and decision-support tool. It is recommended that LNG operators embed AAI-based thresholds into integrity management systems, strengthen predictive maintenance and digital monitoring, and prioritise asset renewal strategies to reduce worker exposure and enhance overall safety performance.},
month = {June},
doi = {https://doi.org/10.64388/IREV9I12-1719158}
}