ASTM F1338-91(2007)
(Guide)Standard Guide for Main Propulsion Medium Speed Marine Diesel Engines Covering Performance and Minimum Scope of Assembly
Standard Guide for Main Propulsion Medium Speed Marine Diesel Engines Covering Performance and Minimum Scope of Assembly
SIGNIFICANCE AND USE
Comparison of brake horsepower developed and of specific fuel consumption rates from engine to engine may be made by use of data based upon a standard for composition of an engine assembly.
The purchaser of the engine assembly will be fully advised of the minimum scope of assembly which the purchaser may rightfully expect to be encompassed by a response to a request for quotation and to be delivered in response to a purchase order unless the engine builder in the proposal or in the offer to sell has clearly advised otherwise.
It will be made apparent to the purchaser that additional auxiliary and accessory equipment will be needed to supplement the defined engine assembly when full consideration is given to the application of the engine assembly as a prime mover in a specific vessel.
SCOPE
1.1 This guide covers performance and minimum scope of assembly of all medium speed marine diesel engines intended for main propulsion of single or multiple screw propelled marine vessels or for vessels using other than screw propeller-type main propulsion.
1.2 This guide is intended to supplement the regulations of legally constituted regulating authorities. In the event of any conflict, which may become apparent after publication of this guide, with such legally constituted regulations, the latter shall take precedence, as may be applicable within the jurisdiction of such authorities and specific to each case, unless such latter regulations are formally waived by proper cognizant authority.
1.3 This guide is not intended to relieve the purchaser of the obligation fully to advise the engine builder of all of the purchaser's unique operational considerations to allow those considerations to be satisfied.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1338 − 91(Reapproved 2007) An American National Standard
Standard Guide for
Main Propulsion Medium Speed Marine Diesel Engines
Covering Performance and Minimum Scope of Assembly
This standard is issued under the fixed designation F1338; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.4 Code of Federal Regulations:
United States Coast Guard Regulations as Published in Code
1.1 This guide covers performance and minimum scope of
of Federal Regulations No. 46 (CFR 46)
assembly of all medium speed marine diesel engines intended
for main propulsion of single or multiple screw propelled
3. Terminology
marine vessels or for vessels using other than screw propeller-
3.1 Definitions of Terms Specific to This Standard:
type main propulsion.
3.1.1 diesel engine—a reciprocating or rotary engine in
1.2 This guide is intended to supplement the regulations of
whichignitionofthemainfuelcharge,asitisintroducedtothe
legally constituted regulating authorities. In the event of any
combustionchamber,shallbebytheheatofcompressionofthe
conflict, which may become apparent after publication of this
charge of combustion air, during regular operation of the
guide, with such legally constituted regulations, the latter shall
engine from idle speeds up to full speed, regardless of whether
takeprecedence,asmaybeapplicablewithinthejurisdictionof
miscellaneous methods to augment such heat of compression
such authorities and specific to each case, unless such latter
are used to facilitate starting of the engine under normal
regulations are formally waived by proper cognizant authority.
conditions or under low ambient temperature conditions or low
1.3 This guide is not intended to relieve the purchaser of the
intake air temperature conditions. Engines that are designed to
obligation fully to advise the engine builder of all of the
operate with a continuously hot spot or bulb or other device to
purchaser’s unique operational considerations to allow those
facilitate ignition or combustion, or both, of low cetane fuels,
considerations to be satisfied.
or any fuels slow to ignite or to burn, or both, shall be
considered to be diesel engines for purposes of this guide.
2. Referenced Documents
2 3.1.2 engine assembly—contains, but is not necessarily
2.1 ABS Standard:
limited to, that apparatus secured to or applied to a basic
Rules for Building and Classing Steel Vessels
3 engine, which is needed to make the basic engine operable and
2.2 IEEE Standard:
capable of developing its rated power as indicated or to be
Standard No. 45, Recommended Practice for Electrical In-
indicated on the engine nameplate.
stallations on Shipboard
3.1.3 fuel map—a chart on which there is displayed a family
2.3 ISO Standard:
of curves of various constant rates of specific fuel
ISO 3046/1 Reciprocating Internal Combustion Engines—
consumption, each curve of the family being plotted on a grid,
Performance
the abscissa of which is engine r/min and the ordinate of which
is brake horse power or brake mean effective pressure.
This guide is under the jurisdiction of ASTM Committee F25 on Ships and
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
3.1.4 medium speed diesel engine—all diesel engines with
Machinery and Piping Systems.
crank-shaft rotative speeds encompassed by the maximum
Current edition approved Dec. 1, 2007. Published January 2008. Originally
approved in 1991. Last previous edition approved in 2002 as F1338 - 91(2002). continuous speed bracket of 400 to 600 r/min (see Appendix
DOI: 10.1520/F1338-91R07.
X1).
Available from American Bureau of Shipping (ABS), ABS Plaza, 16855
Northchase Dr., Houston, TX 77060, http://www.eagle.org.
Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331, http://www.ieee.org. AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
4th Floor, New York, NY 10036, http://www.ansi.org. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1338 − 91 (2007)
4. Significance and Use conduction of air to the basic engine when it is installed in a
marine environment for main propulsion of a vessel.
4.1 Comparison of brake horsepower developed and of
7.1.3 An engine-mounted exhaust manifold properly insu-
specific fuel consumption rates from engine to engine may be
lated (including insulation by use of a water jacket application)
made by use of data based upon a standard for composition of
as may be required by laws and regulations discussed in 2.2
an engine assembly.
herein [such as the requirements of USCG-115, paragraph
4.2 The purchaser of the engine assembly will be fully
56.50-1 (k), Parts 50–60, Title 46 CFR].
advised of the minimum scope of assembly which the pur-
7.1.4 One or more engine-driven and engine-mounted scav-
chaser may rightfully expect to be encompassed by a response
enging air blowers, if required by engine design concept, or
to a request for quotation and to be delivered in response to a
one or more single shaft assemblies of an exhaust gas-driven
purchase order unless the engine builder in the proposal or in
turbine and combustion air blower, or both, if required by
the offer to sell has clearly advised otherwise.
engine design concept, to provide a supply of air for scaveng-
4.3 It will be made apparent to the purchaser that additional
ing or supercharging, or both, and for basic combustion of the
auxiliary and accessory equipment will be needed to supple-
fuel.The single-shaft exhaust gas-driven turbochargers may be
ment the defined engine assembly when full consideration is
engine mounted or separately mounted. The intended method
given to the application of the engine assembly as a prime
of mounting of such turbochargers shall be clearly described to
mover in a specific vessel.
theprospectivepurchaserbytheenginebuilderinanyresponse
to an inquiry so that the impact on installation cost and
5. Regulations, Conventions, and Standards
responsibility, if any, will be apparent. Turbocharger arrange-
5.1 Specific—Theregulations,conventions,andstandardsto ments, for water-washing or other routine maintenance proce-
which a commercial marine vessel may be subject in regard to
dures recommended by the engine builder, shall be provided.
the main propulsion prime movers will vary depending upon
7.1.5 An engineered arrangement of sufficient drilled and
the flag of registry of the vessel.
tapped holes, properly plugged during shipment, to allow
measurement of combustion air and exhaust gas temperatures
5.2 General:
and pressures at appropriate points in the engine assembly.
5.2.1 There may be regulations, conventions, and standards
and such applicable international treaties to which the country 7.1.6 One or more air cooler assemblies, if required by
engine design concept and power rating, designed to accept all
of registry may subscribe which shall be taken as forming a
partofthisguidetotheextentspecifiedhereinandtotheextent of the air for combustion and scavenging and to cool such air
to appropriate temperatures as required by design of the basic
they shall be deemed applicable to the vessel by the country of
registry. engine and by the predicted range of brake horsepower output
andconcurrentspecificfuelconsumptionraterange.Following
5.2.2 Typical examples applicable to vessels of the United
States ofAmerica registry are as follows: Institute of Electrical the logic of 7.1.4, the air cooler assembly might be offered as
a remotely mounted device along with its associated turbo-
and Electronic Engineers Standard No. 45 (IEEE No. 45);
RulesoftheAmericanBureauofShipping;RulesoftheUnited chargers. If so, as in the case of the turbocharger, the intended
method of mounting shall be clearly described to the prospec-
States Coast Guard as printed in various Part Numbers of Title
46 CFR of the United States of America and formerly tive purchaser by the engine builder so the impact on installa-
tion cost and responsibilities, if any, will be apparent.
commonly known as CG-115 (Marine Engineering Regula-
tions, also known as Sub-chapter F); and CG-259 (Electrical
7.1.6.1 Such cooler assemblies, commonly referred to as
Engineering Regulations, also known as Sub-chapter J). intercoolers or aftercoolers, shall be arranged, if required by
overallenginedesignandapplication,tolimitcoolingortoadd
6. Ordering Information
heat energy to the charge of air for combustion to allow
operation of the engine at low continuous power ranges as
6.1 Orders for machinery under this guide shall include the
indicated by the engine builder on a chart of the descriptive
following:
curves of performance of the engine (see 4.1 and 4.2).
6.1.1 ASTM designation, title, and date of this guide.
6.1.2 Quantity, and
7.1.7 A jacket water-circulating pump and any other closed
6.1.3 Packaging or packing and preservation requirements, circuit fresh water pumps required for operation of the engine.
or both.
If this pump is not engine mounted and engine driven as
parasitic load, the specific fuel rate for the engine on the
7. Minimum Scope of Assembly
factory test stand shall be corrected logically and accurately to
increase appropriately the specific fuel rate demonstrated on
7.1 Each engine assembly to meet this guide shall include
the factory test stand and thereby to allow comparison to other
the following:
engines (see Section 8).
7.1.1 The basic power producing unit or engine, be it that
formed by an internal combustion reciprocating engine or by 7.1.8 One or more pressure pumps for main engine lubri-
an internal combustion rotary engine. cating oil supply of each engine unit and, if required by design,
7.1.2 An engine-mounted intake manifold or manifolds to for piston cooling service. If this pump(s) is not engine
conduct air for combustion to the basic engine, with such mounted and engine driven as parasitic load, the specific fuel
manifold properly secured to the basic engine and properly rate for the engine on the factory test stand shall be corrected
gasketed for the service intended, which is the efficient logically and accurately to increase appropriately the specific
F1338 − 91 (2007)
fuel rate demonstrated on the factory test stand and thereby to 7.1.18 Start-Stop Controls:
allow comparison to other engines (see Section 8).
7.1.18.1 The engine builder shall provide an engine-
7.1.9 Afull flow lubricating oil duplex discharge strainer or mounted system either for complete local control only of the
filter for each engine unit to transmit all oil delivered to the engine or adaptable for local control and remote control from
engine by the main lubricating oil pressure pump; or, if the bridge or the engine room control console, or both. The
required by engine design, lubricating oil supplied to the scope of the remote control features required by the purchaser
subordinateanddiscretesystemsoftheenginemaybesupplied must be clearly presented to the engine builder in the purchase
via an additional separate duplex lubricating oil strainer. Such
specification, and requirements of the therein identified cogni-
strainers need not necessarily be supplied as engine mounted. zant regulatory bodies must be met by the engine builder.
7.1.10 An integral, lubricating oil sump, suitable for opera-
7.1.18.2 If the main propulsion engine(s) are to be direct-
tion of that engine when installed in a horizontal position but reversible engines, the engine builder shall include the feature
of a limited capacity with respect to total oil charge. Such a
of reversibility and the engine mounted controls to accomplish
sump may be provided with two or more openings which, if stopping and prompt reversing adjustment and restarting of the
left open for connection to a drain, will allow use of a remote
engine in the opposite direction of rotation. Such controls may
oil sump of larger capacity as suggested by the engine builder. be either for complete local control only, of the engine, or
7.1.11 A duplex suction strainer of mesh as recommended adaptable for local control and remote control from the bridge
or the engine room console, or both. The scope of the remote
by the engine builder to be located on the suction side of the
main lubricating oil pressure pumps. Such a strainer need not control features required in this case also must be clearly
necessarily be engine mounted. presentedbythepurchasertotheenginebuilderinthepurchase
specification and requirements of the therein identified cogni-
7.1.12 A force feed cylinder or valve stem lubricator sys-
zant regulatory bodies must be met by the engine builder with
tem, or both, if required by engine builder’s design, or by the
respect to components supplied by the engine builder.
serviceintended,orboth,orbymainenginefuelintended,with
both of the latter as stated by the purchaser. 7.1.18.3 All required engine-mounted components and pip-
ing for compressed control air and starting air or hydraulic oil
7.1.13 Crankcase pressure relief valves or covers as recom-
supplied shall be engine mounted by the engine builder
mended by the engine builder to meet standards of cognizant
including, but not necessarily limited to, a duplex filter with a
marine inspection and classification authority as identified by
line lubricator for air to the starting air distributor; pilot-
the purchaser.
operated main starting air valve; pilot air distribution lines; a
7.1.14 An engine-barring device which shall be power
starting air-reducing valve, if required; and starting air mani-
driven unless clearly identified to the purchaser by the engine
folds or headers.All such piping shall be terminated at flanges
builder as required to be operated by manual effort only.
or other fitting in a workmanlike manner for connection to
7.1.15 An engine-mounted flywheel secured to the drive
ship’s lines by others.
end of the crankshaft complete and sufficient to carry timing
7.1.19 Fuel Oil System:
marks. If required by drive system arrangement to the reduc-
tion gear (or to the propeller shafting if no reduction gear is to 7.1.19.1 Anengine-mounted,engine-driven,fueloilbooster
pump (service pump) shall be provided, if required, by the
beused),theflywheelshallbecompleteandsufficienttoaccept
mounting of the adjacent flange o
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.