AS ISO ASME 14414:2020 pdf free.Pump system energy assessment.
5.1.2 Level 1 assessments Level 1 assessment shall include gathering of system information for pumping systems considered for evaluation within the scope of the assessment. Level 1 assessment shall start with the pre-screening. During the pre-screening, the control methods for the different systems shall be noted. It shall be determined which systems are best suited for a closer evaluation. It should also be noted if changes to the pump system will affect other systems, thereby introducing constraints on potential optimization strategies for the pump system. As much information as practical should be collected during the level 1 assessment. The availability at the facility of some types of data (see 5.5) should also be reported during the level 1 assessment even if it is not collected. A pre-screening worksheet shall be used to assist in this pre-screening exercise. A typical example of worksheet to aid in the data collection process is given in Annex E. In general, the steps taken during the pre-screening shall include the following: a) sort by driver size, annual operating hours, and estimated energy cost; b) focus on centrifugal pumps operating at fixed speed; c) focus on pumping systems that throttle and recirculate for flow control; d) look for energy-waste symptoms such as large difference in supply and demand, commonly achieved through valve throttling and by-pass flows (see 5.5.5); e) identify inefficient pumping systems via maintenance and operational staff interviews and review of maintenance records;
5.1.3 Level 2 assessments Level 2 assessments shall be performed when it is clear that the observed operating conditions are representative for the operation of the systems and the changes in operating condition are small or non-existent. Level 2 assessments shall be performed using data taken from the facility information systems, in paper or electronic format, or by using portable measuring devices. The measurements shall cover a limited amount of time, thus giving a snapshot of the operating conditions at the time of measurement.
5.1.4 Level 3 assessments Level 3 assessments shall be made on pumps systems where conditions vary substantially over time. For such systems, the assessment team shall record the system performance data over the time period or capture data at the extreme duty points. This activity shall be associated with more extensive use of in situ monitoring to ensure that the operating conditions can be accurately determined at the various duty points (i.e. design point, normal, rated, maximum and minimum flow rates). The monitoring shall be made by connecting transducers to data logging equipment and recording the sensor output, or in some facilities, where historical information is stored, the relevant information should be downloaded from the facility information system.AS ISO ASME 14414 pdf download.