ASME EA-3:2009 pdf download

ASME EA-3:2009 pdf download.Energy Assessment for Steam Systems
1.1 Scope
This Standard covers steam systems that are def ned as a system containing steam generator(s) or other steam source(s), a steam distribution network and end-use equipment. Cogeneration and power generation compo- nents may also be elements of the system (gas turbines, backpressure steam turbines, condensing steam turbines). If steam condensate is collected and returned, the con- densate return subsystem is a part of the steam system. This Standard sets the requirements for preparing for, conducting, and reporting the results of a steam system energy assessment (hereafter referenced as an “assess- ment”) that considers the entire system, from energy in- puts to the work performed as the result of these inputs. An assessment complying with this Standard need not address each individual system component or specif c system within an industrial facility with equal weight; however, it shall be suff ciently comprehensive to iden- tify the major opportunities for improving the overall energy performance of the steam system. This Standard is designed to be applied primarily at industrial facili- ties, but most of the specif ed procedures can be used in other facilities such as those in the institutional and commercial sectors. The scope of work shall be to complete a comprehen- sive assessment on a steam system. In the case of an exceptionally large facility, it may be desirable to focus on only one of several steam systems. As a result, the assessment plan should be developed for this specif c system only. If an energy stream derives from or is di- rected to an adjacent system (possibly in an adjacent en- ergy-supplying or receiving facility), then the details of the energy streams (e.g., electricity, steam, natural gas) shall be considered as part of the assessment of the tar- get system. Assessments involve collecting and analyzing data on system design, operation, energy use, and performance, and identifying energy performance improvement oppor- tunities for system optimization. An assessment may also include recommendations for improving resource utiliza- tion, reducing per unit production cost, reducing life cycle costs, and improving environmental performance related to the assessed system(s). Assessment activities shall include but are not limited to engaging facility personnel and providing information about the assessment process;collecting and analyzing data on system design, opera- tion, energy use, and performance; identifying energy performance improvement opportunities and making rec- ommendations for system improvement and energy-sav- ing project implementation in a written report. This report shall document system design; quantify energy operation and performance data; document the assessment process; show results, recommendations and savings projections; and improve the plant or facility personnel’s understand- ing of steam system energy use and operation. This Standard sets requirements for: (a) organizing and conducting a steam system assessment (b) analyzing the data from the assessment (c) reporting and documentation of assessment f ndings When contracting for assessment services, plant per- sonnel may use the Standard to def ne and communi- cate their desired scope of assessment activity to third party contractors or consultants.
1.2 Limitations
This Standard does not provide guidance on how to perform a steam system assessment, but sets the re- quirements that need to be performed during the as- sessment. For additional assistance, see the companion ASME Guide for ASME EA-3-2009 Energy Assessment for Steam Systems on how to apply this Standard. (a) This Standard does not specify how to design a steam system. (b) This Standard does not specify the qualif cations and expertise required of the person using the Standard. (c) This Standard does not specify how to implement the recommendations developed during the assessment, but does include recommendations for implementation activities. (d) This Standard does not specify how to measure and validate the energy savings that result from imple- menting assessment recommendations. (e) This Standard does not specify how to calibrate test equipment used during the assessment. (f) This Standard does not specify how to estimate the implementation cost or conduct f nancial analysis for recommendations developed during the assessment.