| Network design constrained by reliability
is an important planning consideration to ensure
system’s efficiency in critical situations
and maintain satisfactory level of service to customers.
Network capacity reliability is a measure of the
performance of the water distribution system and
is defined as the probability that the given demand
nodes in the system receive sufficient supply at
adequate pressure for various possible failures
in the water distribution system. It is concerned
with two types of failures, namely, mechanical failure
and hydraulic failure due to pipe breakage, overall
deterioration of the system hydraulic capacity with
age, pump failure, power outages, control valve
failures, etc. Failure of the network can arise
from either the flow rate associated with a demand
not being met, the flow rate associated with the
demand being met but at a delivery pressure lower
than the minimum specified or acceptable level,
or a combination of neither the flow nor the required
delivery pressure being met.
H2ONET Adviser provides sophisticated
reliability-based network assessment capabilities
by directly simulating the effects of failure
of system components. It focuses on the evaluation
of the hydraulic performance failure of the network
caused by any single component failure (pipe break).
All "critical pipes" that will result
in the system hydraulic failure are automatically
identified offering a basis for determining the
level of system reliability. This will allow you
to provide sound decision making and to conceive
and evaluate efficient and economical alternatives
or recommendations with reference to suggested
or required system reliability performance. Hydraulic
failure in this context refers to the system inability
to meet imposed demand flows and minimum required
pressures.
Considerable flexibility is allowed when selecting
pipe segments for reliability assessment. You
can execute a reliability analysis run for the
entire network, the currently active network,
or only those pipe segments in the current network
domain. Similarly, minimum allowable pressures
can be defined for any set of junction nodes or
pressure zones in the system.
H2ONET Adviser can be effectively used
in the analysis, upgrading, or expansion of existing
water supply and distribution systems or the design
of new systems. You now have a flexible and easy
to use vehicle for rapidly and accurately assessing
the level of reliability of your network models
to sustain any single component failure.
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Perform
Comprehensive Network Reliability Assessment
to Ensure High level of Service to Your
Customers
(Click to enlarge the picture) |
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Application Dependent
- H2ONET Version 3.1 or 3.5. |
