ASME EA-4-2010 pdf download

ASME EA-4-2010 pdf download.Energy Assessment for Compressed Air Systems.
4.6 Initial Data Collection and Evaluation The assessment team shall use Mandatory Appendix I, Preliminary Data Collection Matrix, for elements of assessment activity required to evaluate stakeholders’ needs and system assessment requirements. The assess- ment team should def ne assessment requirements using objectives and action items including, but not limited to, initial data collection; measurement of key system oper- ating variables; facility specialist interviews; review of previous assessments, audits, baselines, or benchmark- ing; identif cation of already-approved/initiated system projects; review of utility bills and energy costs; and pre- liminary data evaluation. The preliminary data collection elements are described in Mandatory Appendix I. The matrix presents assess- ment objectives, action items, and methodologies. Some are required elements of an assessment that is fully compliant with this Standard. Supplemental objectives, action items, and methodologies can be included at the discretion of the assessment team. Required elements, assessment objective, action item, and methodology are shown in Mandatory Appendix I using black text with white background. Each required element, assessment objective, and action item shall be investigated using one or more methodologies also shown in black and white text. Supplemental elements of the assessment are written in black text with shaded background as shown here. 4.6.1 Initial Facility Specialist Interviews. The as- sessment team shall contact personnel and specialists within the plant to collect information on operating prac- tices and any specif c operating considerations that affect energy use for the equipment. This information shall be used to help develop the site-specif c goals and assess- ment plan of action (paras. 4.7 and 4.8). See Mandatory Appendix I, I-2, c.1 through c.5, facility specialist interviews.
From this information, an average annual energy cost/ kWh (electric) over the previous 12 mo shall be deter- mined. A facility may have already established a mar- ginal cost for energy that can be used. See Mandatory Appendix I, I-2, d.2 and d.4, energy in- formation. 4.7 Site-Specifi c Assessment Goals Compressed air systems, the industries they serve, and end-use applications are very diverse. As a result, the goals of a compressed air system assessment vary from system to system. The assessment team shall determine assess- ment goals and develop the SOW for the assessment. The assessment team shall develop the assessment goals as they apply to the plant site. These goals should be consistent with the organizational goals identif ed in para. 4.5, together with information about the present compressed air system and stakeholder needs (para. 4.6 and Mandatory Appendix I). In the assessment plan of action, described in para. 4.8, the assessment team shall identify assessment objectives and action items that will contribute to achieving the as- sessment goals. 4.8 Assessment Plan of Action Using the plan of action matrix presented in Manda- tory Appendix II, Plan of Action Matrix, the assessment team shall select assessment objectives, action items, and methodologies to develop a plan of action for the assess- ment. This Standard specif es the requirements that shall be undertaken to conduct an assessment. These require- ments are presented with black text on white background as shown in the following paragraph.
This Standard is structured to allow maximum f exibil- ity in creating the assessment’s plan of action meeting the needs of individual plant sites. The plan of action ma- trix shall be used as a framework to develop an effective assessment plan appropriate to a plant’s unique com- pressed air system and site-specif c assessment goals. It is unlikely that any system assessment would in- clude all of the supplemental (shaded) elements listed in Mandatory Appendices I and II. However, meeting the plant site goals and information needs may include other objectives and action items that are not listed here. Where the Standard is silent or inconsistent for any spe- cif c application, the assessment team shall adhere to the principles of systems engineering, apply the systems ap- proach, and be suff ciently comprehensive to meet the intent of the Standard. When developing the plan of action, consider that a required goal is to quantify the system’s baseline energy use and compressed air demand. Baseline data will estab- lish base-year energy data (Mandatory Appendix II, II-1, a.2). In addition to base-year energy data, documenta- tion of base-year plant function and production process information (Mandatory Appendix I, I-2, b.1 through 4) is necessary. The baseline established by the system as- sessment will be used now and again in the future. Preparation and documentation of the plan of action are central to the assessment. In addition to its immedi- ate use, the plan of action forms a basis for future system performance evaluation. Consider that with implemen- tation of system improvements, several years may pass before the original assessment plan of action is again re- viewed. Therefore, the assessment team shall (a) Describe the assessment plan of action in a man- ner that can be accurately interpreted by persons not in- volved in its development.