The objective of a pumping system energy assessment is to determine the current energy consumption of an existing system and identify ways to improve system efficiency.
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Identification of the assessment team, authority and functions
4.1 Identification of assessment team functions
4.2 Assessment team structure, leadership and competency
4.3 Facility management support
4.4 Communications
4.5 Access to facilities, personnel and information
4.6 Assessment objectives, scope and boundaries
4.7 Action plan
4.7.1 General
4.7.2 Assessment scheduling
4.8 Initial data collection and evaluation
4.8.1 General
4.8.2 Initial facility specialist interviews
4.8.3 Energy project history
4.8.4 Energy cost
4.8.5 Initial system data
4.9 Objective check
5 Conducting the assessment
5.1 Assessment levels
5.1.1 General
5.1.2 Level 1 assessments
5.1.3 Level 2 assessments
5.1.4 Level 3 assessments
5.2 Walk through
5.3 Understanding system functional requirements
5.4 Determining system boundaries and system energy demand
5.5 Information needed to assess the efficiency of a pumping system
5.5.1 General
5.5.2 Electrical motor/drive information
5.5.3 Pump information
5.5.3.1 Rotodynamic pumps
5.5.3.2 Positive displacement (PD) pumps
5.5.4 Liquid properties information
5.5.5 Detailed system data
5.5.6 Measured data
5.5.6.1 Electrical data
5.5.6.2 Operating system data
5.6 Data collection
5.6.1 System information
5.6.2 Measurement of pump and motor operating data
5.6.3 Pressure
5.6.4 Flow
5.6.5 Input power
5.7 Cross validation
5.8 Wrap-up meeting and presentation of initial findings and recommendations
6 Reporting and documentation
6.1 Final assessment report
6.2 Data for third party review
6.3 Review of final report by assessment team members
Annex A
A.1 Executive summary
A.2 Introduction and facility information
A.3 Assessment objectives and scope
A.4 Description of system(s) studied in assessment and significant system issues
A.5 Assessment data collection and measurements
A.6 Data analysis
A.7 Annual energy consumption baseline
A.8 Performance improvement opportunities identification and prioritization
A.9 Recommendations for implementation activities
A.10 Appendices
Annex B
B.1 General recommendations for efficient system operation
B.2 System management to ensure economic operation
B.2.1 General
B.2.2 System management recommendations
B.2.3 System updating and improvement
B.2.4 Pump system piping
B.3 Common causes and remedies for excessive energy consumption for rotodynamic pump
B.3.1 General
B.3.2 Reduce system head losses
B.3.3 Reduction of system flowrate
B.3.4 Ensuring that components operate close to best efficiency
B.3.5 Change pumping system run time
B.4 Examples of basic energy reduction opportunity calculations for rotodynamic pumps
B.4.1 Calculation of existing and post assessment energy consumption
B.4.1.1 General
B.4.2 Example
B.4.3 Secondary systems: Sealing systems
B.5 Explanation of basic energy reduction opportunity calculations for positive displacement pumps
B.5.1 General
B.5.2 Example
B.5.2.1
B.5.2.2
B.5.2.3
B.5.2.4
Annex C
C.1 Systems
C.2 Pumps
C.3 Motors and drives
C.4 Analysis and reporting
Annex D
Annex E
Annex F
F.1 General
F.2 Specific energy consumption in different type of pump systems
Annex G
G.1 General
G.2 Parasitic power equations
G.3 Conclusions
G.3.1
G.3.2
G.3.3
G.4 Relationship between parasitic power and vibration level
G.5 Correlation between parasitic power level in a pumping system and MTBF
