ASTM WK37952 - Draft "New Specification for equipment and instrumentation of heat metering technologies"
Len
All IDEA members are encouraged to provide input to the heat metering
standard ASTM WK37952 under development. The title and scope are in
draft form and are under development within this ASTM Committee.
ASTM Subcommittee: E44.25: http://www.astm.org/COMMIT/SUBCOMMIT/E4425.htm
Committee E44 Home: http://www.astm.org/COMMITTEE/E44.htm
Contact Staff Manager: mailto:cdej...@astm.org
WORK ITEM STATUS
Date Initiated: 06-13-2012
Technical Contact: James Critchfield
Status: Draft Under Development
ASTM WK37952 - Draft "New Specification for equipment and
instrumentation of heat metering technologies"
1. Scope
1.1 This standard specifies the general performance requirements and
operational characteristics for heat meter equipment and
instrumentation to measure the heat that is either absorbed or given
up by a heat conveying fluid across a heat exchange circuit.
1.2 The standard will apply to complete heat meter instruments
comprised of two paired temperature sensors, a flow meter, and a
calculator. Heat meter equipment and instrumentation complying with
this standard will indicate the quantity of heat in legal units.
1.3 The standard is intended to define the requirements for heat meter
instrumentation common to several renewable and conventional thermal
energy technologies and end use applications including water heating,
space heating and cooling, process heat and district heating
applications. The standard should be agnostic to the thermal energy
technology.
1.4 The standard will address metering applications involving single-
phase, multi-phase, compressible and non-compressible heat conveying
fluids including, but not limited to, water, glycol, saturated- and
superheated steam. Once the technical committee has evaluated the
commonalities, differences and challenges related to single-phase,
multi-phase, compressible and non-compressible metering applications,
the subgroup will determine whether separate standards or separate
methods within a single standard are warranted.
1.5 The standard will not specify requirements or designs of other
common system components such as controllers, thermostats, timers and
shall be free of proprietary manufacturer designs, methods or features
etc.
1.6 The standard will address concerns related to the placement and
integration of heat meter subcomponents (flow meter, temperature
sensors) into a thermal system environment in order to ensure that a
complete instrument meeting this standard will perform as rated.
1.7 The standard will define security and onboard data integrity and
storage requirements for devices meeting this standard. The standard
will define such elements as supply voltage interruption requirements,
onboard backup power (batteries) and security seal requirements etc.
1.8 The standard will specify a communications platform to support the
cross integration of individual heat meter subcomponents and to meet
the market requirements for onsite and remote access to meter data and
information. The standard will define admissible data exchange and
interfaces at the physical layer, link layer, and application layer
for devices meeting this standard.
1.9 The standard will define a procedure (pattern/type approval test
and initial verification test) to ascertain whether a device conforms
to the metrological requirements and permissible errors defined under
this standard.
1.10 The standard will define the manufacturer requirements for
labeling devices including elements of manufacturer identification,
environmental classification, admissible operating parameters and
ranges and power supply requirements etc.
1.11 The standard will specify installation, commissioning,
operational monitoring and maintenance requirements for devices
meeting this standard. This includes, but is not limited to, the
requirements and criteria for selection of a heat meter, quality
specifications for heat conveying fluids, heat meter circuit design,
and any additional elements unique to specific end use applications.
1.12 This standard does not purport to address all of the safety
concerns, is any, associated with its use. It is the responsibility of
the user of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limitations
prior to use.
• EPA Presents Heat Metering Framework to ASTM/IAPMO Partnership:
http://www.astm.org/standardization-news/outreach/epa-presents-heat-m...
• ASTM posting: http://www.astm.org/DATABASE.CART/WORKITEMS/WK37952.htm
• ASTM Standards Tracker: http://www.astm.org/STORE/alert.html
• ASTM Standards Subscriptions: http://www.astm.org/DEMO/index.shtml