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ASME EA-3-2009 pdf download

ASME EA-3-2009 pdf download.Energy Assessment for Steam Systems.
Proposing Revisions. Revisions are made periodically to the Standard to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the Standard. Approved revisions will be published periodically. The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specif c as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation. Proposing a Case. Cases may be issued for the purpose of providing alternative rules when justif ed, to permit early implementation of an approved revision when the need is urgent, or to provide rules not covered by existing provi- sions. Cases are effective immediately upon ASME approval and shall be posted on the ASME Committee Web page. Requests for Cases shall provide a Statement of Need and Background Information. The request should identify the Standard, the paragraph, f gure or table number(s), and be written as a Question and Reply in the same format as existing Cases. Requests for Cases should also indicate the applicable edition(s) of the Standard to which the proposed Case applies. Interpretations. Upon request, the EA Committee will render an interpretation of any requirement of the Standard. Interpretations can only be rendered in response to a written request sent to the Secretary of the EA Committee. The request for interpretation should be clear and unambiguous. It is further recommended that the inquirer submit his request in the following format: Subject: Cite the applicable paragraph number(s) and a concise description. Edition: Cite the applicable edition of the Standard for which the interpretation is being requested. Question: Phrase the question as a request for an interpretation of a specif c requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation.
1 SCOPE AND INTRODUCTION 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.

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