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ASME PTC 18 Document Information:
Title
Hydraulic Turbines and Pump-Turbines
ASME International
Publication Date:
Jan 1, 2002
Scope:
OBJECT AND SCOPE
This Code applies to all sizes and types of hydraulic turbines or
pump-turbines. It defines methods
for ascertaining performance by measuring flow rate (discharge), head,
and power, from which
efficiency may be determined. Requirements are included for pretest
arrangements, types of
instrumentation, methods of measurement, testing procedures, methods
of calculation, and contents
of test reports.
This Code contains mandatory test requirements and various methods of
measurement. Where multiple
methods of measurement and procedures are permitted by the Code, prior
written agreement as to the
selected methods and procedures is required.
The code on General Instructions, ACME PTC 1, governs the philosophy
and general approach of ASME
performance test codes.
The test procedures specified herein and the limitations placed on
measurement methods and
instrumentation are capable of providing a total uncertainty,
calculated in accordance with the
procedures of PTC 19.1 and of this Code, of not more than:
(a) Power ±1.2%
(b) Flow Rate ±1.5%
(c) Efficiency ±2.0%
Where favorable measurement conditions exist and best methods can be
used, smaller uncertainties
should result. Any test with uncertainties greater than the above
shall not qualify as an ASME Code
test.
This Code contains recommended procedures for index testing and
describes the purposes for which
index tests may be used.
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