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GAS
DISTRIBUTION ENGINEERING
AESL
provide engineering services, technical consultancy and
development facilities to Utility companies in the UK and
overseas, for the efficient operation of low and medium pressure
gas distribution systems. Other
services for strategy, supply, pricing issues, etc are provided to
Government Departments and ‘Regulators’ in various countries
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Gas
Pipeline Performance
The long term performance of
pipeline materials is fundamental to safety and environmental
issues, and maintenance and capital investment decisions.
AESL specialises in assessing the condition and performance
capability of in-service gas pipelines, including PE, steel and
ageing grey and ductile iron mains. We have developed condition
assessment and modelling techniques, to give an improved
understanding of maintenance requirements and the remaining
service life of the pipeline.
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Pipeline
Structural Condition
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Cathodic
Protection
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Internal
& External Coatings
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Soil
Chemistry
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Asset
Performance Capability
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Environmental
Issues
Following
site inspection and assessment of the structural condition of the
pipeline, the operational performance capability and the future
remaining service life can both be investigated. Key information can be provided for pipeline operators to
establish optimum maintenance and investment strategies |
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Leakage
Control & Replacement
The
efficient operation of gas distribution systems within urban
environments requires minimal gas leakage. Minor leaks can occur from gas control equipment and
deteriorating pipe joints, but significant leakage usually arises
from pipe or pipeline equipment failures. Optimum system control requires responsive maintenance
strategies to minimise minor leakage and effective maintenance
policies to prevent pipeline and equipment failures. AESL have extensive gas industry expertise in a wide range
of technologies, which are core to the effective management of
leakage control.
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Pipeline
Replacement Strategies
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Assessment
of system performance, pipe condition, ground factors,
engineering design
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Statistical
analysis of system failure history
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Investigation
of pipe and equipment failures
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Development
of replacement strategies
Pressure
Management
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Pressure
clocking and profiling
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Demand
activated governing (DAG)
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Closed
Loop Control (CLC)
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Leakage
Assessment & Control
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Leakage
assessment and monitoring
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Joint
sealing on pipe systems by gas conditioning
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Individual
joint sealing by anaerobic sealants
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Distribution
Technology
AESL
are
specialist pipeline and pipeline equipment engineers with
technical skills based upon extensive gas industry experience in
mechanical, materials, and electronics engineering, together with
computer hardware and software technology. Specialist gas distribution skills include the design,
construction and operation of low-pressure pipe systems in all
materials, the maintenance and replacement requirements of ageing
pipe systems constructed using grey iron, ductile iron and steel,
and the design and maintenance of pressure and volume control
technology and gas conditioning equipment. AESL can provide an innovative approach to problem solving
which allows the definition of cost effective solutions in gas
distribution technology for the client. |
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Technical
Consulting Services
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Materials performance -
Polyethylene, grey iron, ductile iron, and steel
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Asset
management/replacement strategies
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Pipe system construction
standards
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New/replacement
pipelaying techniques
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Pressure testing and
purging
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Gas flow modelling and
analysis
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Street works engineering
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Reinstatement materials
recycling
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Failure investigations
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Design
Capability
AESL
can also provide comprehensive design, development and
manufacturing services, undertaken within our own laboratory and
workshop facilities.
Pipeline
Damage Control
Buried
gas distribution pipe systems are vulnerable to damage from
external loading. Grey
cast iron pipes in particular can failure due to impact damage,
ground movement or other loading regimes. PE pipes can also be punctured or more seriously damaged
during excavation. Such
failures can generally be prevented by assessing the proposed
operating procedures prior to major works being carried out and
developing appropriate damage prevention strategies. AES can undertake a wide range of pipeline damage control
activities.
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Pipeline
Damage
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