This guidance document provides an application guide on how to utilize ASME EA-4, Energy Assessment for Compressed Air Systems. This guidance document provides background and supporting information to assist in carrying out the standard. ASME EA-4 does not provide guidance on how to perform a compressed air systems energy assessment, but sets the requirements that need to be performed during the assessment. ASME EA-4 was written in a form suitable for a standard, with concise text and without examples or explanations. This document was developed to be used in conjunction with the standard to give basic guidance on how to fulfill the requirements of the standard. This document is only a guide, it does not set any new requirements, and ASME EA-4 can be used with or without this document.

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PDF Pages	PDF Title
5	CONTENTS Figures Tables
6	FOREWORD
7	COMMITTEE ROSTERS
9	1 Scope and Introduction 1.1 Scope and Purpose 1.1.1 Scope. 1.1.2 Purpose. 1.2 Limitations 1.3 Introduction — Using the System Assessment Standard 1.3.1 The System Assessment Process.
10	1.3.2 System Energy Efficiency. 1.3.2.1 Compressed Air Energy Conversion. 1.3.2.2 Energy Reduction Opportunities.
11	1.3.3 Systems Approach. 1.3.4 Systems Engineering Process. 2 Introduction to Compressed air Systems 2.1 Elements and Characteristics of Industrial Compressed Air Systems 2.1.1 Supply Side. 2.1.1.1 Generation. 2.1.1.2 Treatment.
12	1 Example Compressed Air System
13	2.1.1.3 Primary Storage. 2.1.1.4 Instrumentation. 2.1.2 Transmission System. 2.1.2.1 Distribution Piping. 2.1.2.2 Piping Drops. 2.1.2.3 Secondary Storage. 2.1.2.4 Transmission Controls.
14	2.1.2.5 Instrumentation. 2.1.3 Demand Side. 2.1.3.1 Point of Use. 2.1.3.2 Point of Use Piping. 2.1.3.3 Point of Use Storage. 2.1.3.4 Point of Use Controls. 2.1.3.5 Instrumentation. 3 An Effective Compressed Air System Assessment
15	4 Guide to Organizing the Assessment 4.1 Identification of Assessment Team Members, Roles, and Responsibilities 4.1.1 Required Functions and Personnel.
16	4.1.1.1 Resource Allocation. 4.1.1.2 Coordination, Logistics, and Communications. 4.1.1.3 Compressed Air Systems Knowledge. 4.2 Facility Management Support 4.3 Communications 4.4 Access to Equipment, Resources, and Information
17	4.5 Assessment Goals and Scope 4.5.1 Example Goal and Assessment Scope. 4.6 Initial Data Collection and Evaluation
18	4.7 Site- Specific Assessment Goals 4.8 Assessment Plan of Action 4.9 Goal Check 1 Site-Specific Assessment Goals
19	4.9.1 Evaluating the Cost Effectiveness of an Assessment SOW. 4.9.2 Using Compressor Rating: Annual Electrical Energy Cost ($) Estimate [ 3] 4.9.2.1 Example. 4.9.2.2 Factors That Can Affect the Calculation. 4.9.3 Using Spot Check Measurement ( Amps): Annual Electrical Energy Cost Estimate
20	2 Motor Power Factor as a Function of Percent Full-Load Amperage
21	5 Guide to Conducting the Assessment 5.1 Measurement Plan 5.1.1 Measurement Instruments. 5.1.2 Measurement Techniques. 5.1.3 Baseline Period and Duration of Data Logging.
22	5.1.3.1 Example: Determining Baseline Duration for Food Processing Plant [ 5]. 5.1.4 Direct Versus Indirect Measurement 5.1.4.1 Direct Measurement. 5.1.4.2 Indirect Measurement. 5.1.4.3 Example Direct Versus Indirect Measurement.
23	5.1.5 Transducer Installation. 5.1.6 Electrical Signal Integrity. 5.1.7 Planning and Measurement Techniques. 5.1.7.1 Sample Rate and Data Interval. 3 Measured Power Factor Versus Percent Full-Load Amperage
24	5.1.7.1.1 Dynamics. 5.1.7.2 Signal Noise. 5.1.7.2.1 Sample Averaging. 5.1.7.2.2 Power Measurement. 5.1.7.2.3 Energy Measurement. 5.1.8 Identify Test Points and Parameters. 5.2 Site Access Procedures 5.3 Assessment Kick- Off Meeting 5.4 Deploy Data Collection Equipment
25	5.5 Coordinate Data From Permanently Installed Data Systems 4 Example Installed Data System
26	5.6 V alidate Data 5.6.1 Example: Calibration Adjustment. 5.6.2 Example: Correcting Errors of Method. 5.6.3 Example: Known Correction Applied to the Data. 5.7 Plant Functional Baseline 5.7.1 Static Factors. 5.7.2 Base Year Production Performance.
27	5.7.3 Example: Plant Functional Baseline. 5.8 Functional Investigation 5.9 Progress and Wrap- Up Meetings 2 Production Rates Recorded During the System Assessment
28	6 Guide to Analysis of Data from the Assessment 6.1 Baseline Profiles 3 Example Baseline Summary
29	4 Example Baseline Profile for Production Day Type
30	6.1.1 Power and Energy Profiles. 6.1.2 Demand Profile. 6.1.3 Supply Efficiency. 6.1.4 Identify Operating Period Types. 6.1.5 Annualize Energy Use and Air Demand. 6.2 System Volume 6.3 Pressure Profile
31	6.3.1 Average Pressure and Pressure Variations. 6.3.2 Peak Airflow: Effect on the Pressure Profile. 5 Example Pressure Profile 1
32	6 Example Pressure Profile 2 7 Example Measured Pressure Profile
33	6.3.3 Excessive Irrecoverable Pressure Loss. 6.3.4 Excessive Pressure Gradient. 6.4 Perceived High- Pressure Demand 6.4.1 Rated / Recommended End- Use Pressure. 6.4.2 Dynamic Flow/ Pressure Relationship. 6.4.3 Stability of Supply Pressure.
34	6.4.4 Remedial Measures and Quantify Savings. 6.4.4.1 Existing Pressure Anomalies. 6.4.4.2 V alid High- Pressure Use. 6.5 Demand Profile 6.5.1 Average Airflow and Airflow Variations. 6.5.2 Transmission System Performance. 6.5.3 Remedial Measures and Quantify Savings. 6.6 Critical Air Demands 6.6.1 Effect on Productivity and Energy. 6.6.1.1 Example of Narrowing the Measurement Boundary.
35	6.6.2 Critical End- Use Characteristics. 6.6.2.1 Flow- Static End Use. 6.6.2.2 Flow- Dynamic End Use. 6.6.3 Analyze Process Limits. 6.6.4 Remedial Measures and Quantify Savings. 6.7 Compressed Air Waste 8 Compressed Air Waste
36	6.7.1 Leakage. 6.7.2 Inappropriate Use. 6.7.3 Artificial Demand. 6.8 Optimize Air Treatment 6.8.1 Appropriate Air Quality 6.8.2 Redundant Treatment Equipment. 6.8.3 Treatment Effect on Pressure Profile. 6.8.4 Remedial Measures and Quantify Energy Result. 6.9 Reduce System Operating Pressure 6.10 Balance Supply and Demand
37	6.11 Assess Maintenance Opportunities 6.12 Evaluate Heat Recovery Opportunities
38	6.12.1 Equations to Approximate Energy Recovery Opportunity 7 Guide to Reporting and Documentation 7.1 Final Assessment Report 7.2 Final Assessment Report Contents 7.2.1 Executive Summary. 7.2.2 Facility Information. 7.2.3 Assessment Goals and Scope.
39	7.2.4 Description of System( s) Studied and Significant System Issues. 7.2.4.1 System Block Diagram. 7.2.4.2 Site Issues. 7.2.5 Assessment Data Collection and Measurements. 9 Example of a Simple Block Diagram
40	10 Complex Block Diagram Showing Transducer Locations 5 Example Equipment-Rating Notes
41	6 Example Equipment Age / Comments 7 Example Key End-Use Air Demands 8 Example Accuracy Information
42	7.2.6 Data Analysis 7.2.6.1 Sample Statement of Methodology 7.2.6.2 Reporting Assessment Findings 7.2.6.2.1 Example of a Positive Finding
43	7.2.6.2.2 Example of a Pertinent NegativeFinding. 11 Dynamic Pressure Trend
44	12 Wrapper Machine and Test Pressure Locations TP17, TP18, and TP19 13 Wrapper Dynamic Pressure Profile Signature (25-Hz Data Interval)
45	7.2.7 Annual Energy Use Baseline 7.2.8 Performance Improvement Opportunities Identified and Prioritization 7.2.8.1 Energy/Performance Opportunities 7.2.8.2 Nonenergy Opportunities 7.2.8.3 Key Findings 7.2.8.4 Recommendations for Implementation Activities 7.2.8.4.1 Example Action Plan
46	7.2.9 Recommendations for Implementation Activities 7.2.10 Appendices 7.3 Data for Third Party Review 7.4 Review of Final Report by Assessment Team Members 8 BIBLIOGRAPHY 9 Example Operational Summary
47	NONMANDATORY APPENDICES A EXPANDED GLOSSARY
49	B BMEASUREMENT UNCERTAINTY
56	C KEY REFERENCES

Published By	Publication Date	Number of Pages
ASME	2010	60


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Standard Title	ASME EA-4G Guidance for ASME EA-4, Energy Assessment for Compressed Air Systems [ANSI designation: ASME TR EA-4G-2010]
Published Code	ASME
Publication Date	2010
Pages Count	60

ASME EA 4G 2010 R2015

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ASME EA 4 2010 R2015