ASME EA-2:2009 pdf download

ASME EA-2:2009 pdf download Energy Assessment for Pumping Systems
Due to the large variation in structure, size, and func- tion of organizations, the make-up of personnel on the assessment team may vary. It is, however, advantageous if the following additional roles are represented:
(a) One or more “system owners” who can be devel- oped into a “pump champion” or “energy champion.” Large organizations may have so many pumping sys- tems that it is impossible for one person to know them all. Therefore, several persons from this category may represent different parts of the facility. At smaller facili- ties, the “champion” may also be the appropriate “cham- pion” for other energy areas.
(b) One or more process or operations personnel who rely on the system(s). In some cases the pump systems are subsystems to a larger system. In such cases per- sonnel with a good understanding of the larger system should be available or on the assessment team.
(c) One or more pumping system operators. The participants in the assessment team should be chosen prior to the development of the plan of action. The assess- ment team should be briefed before the assessment so that minimal time has to be devoted to explaining the purpose and execution of the assessment. The facility must choose the participants on the assessment team, but the assess- ment team must also have access to facilities personnel who understand connected systems that will be inf uenced by changes made to the pumping system. Since large facilities could have several processes that are assessed, different per- sons representing such processes could be involved in the portions of the assessment that concern their system only.
4.8.2 Assessment Scheduling. It is essential to sched- ule the dates reserved for the assessment and to organize a set of scheduled events. For this reason, the dates of the assessment, and dates and times of key meetings shall be designated in advance of beginning the assessment. A meeting shall occur just prior to the commencement of the assessment. The purpose of this meeting is to re- view information collected in the preliminary data col- lection and evaluation and establish the work schedule. At this meeting, the assessment team should discuss the tools, methods, measurement, metering, and diagnostic equipment required. The assessment team should also es- tablish the daily schedule(s) for the on-site assessment. Periodic reporting to facility managers in the form of debrief ngs should occur as agreed upon by the assessment team. Also, irregularities may occur during an assessment (e.g., the failure of a computerized records system). If and when such events occur, the assessment team shall determine a corrective course of action. The on-site assessment activities will conclude with a wrap-up meeting designed to outline the assessment in- vestigations and initial recommendations. This meeting is discussed in para. 5.9.
4.8.3 Key Personnel Interviews. Subject to modif ca- tion during the course of the assessment, the dates and times for the assessment team to meet with key plant or facility managers and process operators shall be speci- f ed and agreed upon by all individuals who will be par- ticipating in each meeting event. It shall be recognized that all data initially identif ed as essential to the assess- ment shall be obtained in discussions with knowledge- able facility staff. 4.9 Goal Check Prior to conducting the assessment, the assessment team shall ensure that the plan of action meets the stated assessment goals. The assessment plan of action shall be reviewed for relevance, cost-effectiveness, and capacity to produce the desired results.
5 CONDUCTING THE ASSESSMENT
5.1 Introduction Pumping systems vary tremendously between differ- ent types of industries and facilities. A municipal system might contain ten pumps whereas a large paper mill might have several hundred pumps installed. Some facilities have a large number of pumping sys- tems and it is unrealistic to assess all pumping systems. Additionally, it may not be cost-effective to assess certain systems, such as small- capacity systems or systems that run infrequently. It is therefore essential that a prescreen- ing be made of the installed systems so efforts can be concentrated where the savings potential is greatest. Different systems also require different amounts of effort and expertise to be assessed. Therefore, this Standard def nes three levels of assessments for pumping systems. This Standard does not describe how all systems in a facility are assessed but does describe the different levels of assessment and how to assess an individual system. This Standard does discuss how to prioritize the pump- ing systems with the greatest energy-savings potential. The systems to be considered (the scope of the assess- ment) shall be determined during the initial contacts be- tween the facility and the assessment team. One facility may contain pumping systems that need the effort of either one or more of the levels described in para. 5.2.
As the facility is being assessed, part of the outcome of Level 1 and Level 2 assessment is whether the system needs to be brought to the next higher level of assessment. In some cases a pumping system is a subsystem of a larger system and it will be impossible to optimize the pumping system without having a clear understanding of how the larger system is affected by changes made to the pumping system. In such cases it may be necessary to connect with persons with knowledge about the larger system to determine the constraints the larger system puts on potential modif cations to the pumping system. Table 1 gives a summary of the different assessment levels.