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ASME_PTC6-2004_汽轮机热力性能考核试验规程.pdf
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ASME_PTC6-2004_汽轮机热力性能考核试验规程 ASME_PTC6-2004_汽轮机热力性能考核试验规程 ASME_PTC6-2004_汽轮机热力性能考核试验规程 ASME_PTC6-2004_汽轮机热力性能考核试验规程
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Erratum
to
ASME PTC 6-2004
Steam Turbines
On page 13, Table 3-1, first entry under second column is corrected by erratum to read “? 3.0%
of the absolute pressure. ” See revised table on the overleaf.
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
Three Park Avenue, New York, NY 10016-5990
February 2006
C2804E
Copyright ASME International
Provided by IHS under license with ASME
Not for ResaleNo reproduction or networking permitted without license from IHS
--`,,```,,,,````-`-`,,`,,`,`,,`---

Table 3-1 Permissible Deviation of Variables
Permissible Deviation for the Average
of the Test Conditions from Design or Permissible Fluctuations During Any
Variable Rated Conditions [Note ( 1)] Test Run [Note (2)]
Initial steam pressure ? 3.0% of the absolute pressure ? 0.25% of the absolute pressure or 5.0
psi (34.5 kPa), whichever is larger
Initial and reheat steam temperature ? 15°F (8K) when superheat is 27°–50°F ? 4°F (2K) when superheat is 27°–50°F
(15–30K); ? 30°F (16K) when super- (15–30K); ? 7°F (4K) when superheat
heat is in excess of 50°F (30K) is in excess of 50°F (30K)
Initial steam quality ? 0.5 percentage points of quality for ? 0.1 percentage points of quality for
turbines with wet throttle steam turbines with wet throttle steam
Primary flow Not specified Refer to para. 4-10.1
Secondary flows ? 5.0% ? (primary flow)/(secondary flow) Same as (d) ? (primary flow)/(secondary
flow)
Pressure drop through fossil unit reheater ? 50.0%
Extraction pressures ? 5.0%
Extraction flows [Note ( 3)] ? 5.0%
Temperature of feed water leaving final ? 10°F (6K)
heater
Exhaust pressure [Note ( 4)] ? 0.05 psi (0.34 kPa) or ? 2.5% of the ab- ? 0.02 psi (0.14 kPa) or ? 1.0% of the
solute pressure, whichever is larger absolute pressure, whichever is larger
Load Refer to para. 3-13.5 ? 0.25%
Voltage ? 5.0%
Power factor Not specified ? 1.0%
Speed ? 5.0% ? 0.25%
Aggregate isentropic enthalpy drop of ? 10.0%
anyone of the sections of an automatic-
extraction turbine
NOTES:
(1) In any event, the manufacturer ’s allowable variations in pressure temperature and speed are not to be exceeded, unless specifically
agreed to before the test.
(2) Fluctuations would be indicated by scatter in the data (refer to para. 3-9.2).
(3) When steam is extracted for feedwater heaters, the extraction pressures (which are fixed by the turbine design and flow conditions) may
deviate from expected values by a few percent. This normally has a negligible effect upon the overall performance. It shall be ascertained
that such deviations that do exist are not due to malfunctioning of feedwater heaters. If large deviations persist, agreement must be
reached as to the course to be followed.
(4) If it is not practicable to obtain design or rated exhaust pressure, the test may be conducted by agreement at another exhaust pressure,
and either party may require that the exhaust pressure correction curve be verified by test.
Copyright ASME International
Provided by IHS under license with ASME
Not for ResaleNo reproduction or networking permitted without license from IHS
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Performance Test Codes
A N A M ER I CA N N AT I O N A L S TA N D A R D
Steam Turbines
ASME PTC 6-2004
(Revision of ASME PTC 6-1996)
Copyright ASME International
Provided by IHS under license with ASME
Not for ResaleNo reproduction or networking permitted without license from IHS
--`,,```,,,,````-`-`,,`,,`,`,,`---

ASME PTC 6-2004
(Revision of ASME PTC 6-1996 )
Steam Turbines
Performance Test Codes
Three Park Avenue ? New York, NY 10016
A N A M ERI CA N N A T I ON A L S TA N D AR D
Copyright ASME International
Provided by IHS under license with ASME
Not for ResaleNo reproduction or networking permitted without license from IHS
--`,,```,,,,````-`-`,,`,,`,`,,`---

Date of Issuance: October 31, 2005
This Code will be revised when the Society approves the issuance of a new edition. There will be no
addenda issued to ASME PTC 6-2004 .
ASME issues written replies to inquiries as code cases and interpretations of technical aspects of this
document. Code cases and interpretations are published on the ASME Web site under the Committee
Pages at http://www.asme.org/codes/ as they are issued.
ASME is the registered trademark of The American Society of Mechanical Engineers.
This code or standard was developed under procedures accredited as meeting the criteria for American National Stan-
dards. The Standards Committee that approved the code or standard was balanced to assure that individuals from com-
petent and concerned interests have had an opportunity to participate. The proposed code or standard was made avail-
able for public review and comment that provides an opportunity for additional public input from industry, academia,
regulatory agencies, and the public-at-large.
ASME does not “approve, ” “rate, ” or “endorse ” any item, construction, proprietary device, or activity.
ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items
mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringe-
ment of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expressly advised
that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their
own responsibility.
Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as gov-
ernment or industry endorsement of this code or standard.
ASME accepts responsibility for only those interpretations of this document issued in accordance with the established
ASME procedures and policies, which precludes the issuance of interpretations by individuals.
No part of this document may be reproduced in any form,
in an electronic retrieval system or otherwise,
without the prior written permission of the publisher.
The American Society of Mechanical Engineers
Three Park Avenue, New York, NY 10016-5990
Copyright ? 2005 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All rights reserved
Printed in U.S.A.
Copyright ASME International
Provided by IHS under license with ASME
Not for ResaleNo reproduction or networking permitted without license from IHS
--`,,```,,,,````-`-`,,`,,`,`,,`---
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