ASME EA-1:2009 pdf free download

ASME EA-1:2009 pdf free download.Energy Assessment for Process Heating ystems.
ASME EA-1 covers process heating systems that are defined as a group (or a set or combination) of heating equipment used for heating materials in the production of goods in an industrial plant. These systems, commonly referred to using terms such as furnaces, melters, ovens, and heaters, use heat sources such as fuels, electricity, steam, or other fluids to supply the required heat.
This Standard sets the requirements forconducting and reporting the results of a process heating energy assessment (hereafter referred to as an “assessment”) that considers the entire system, from energy inputs to the work performed as the result of these inputs. An assessment complying with this Standard need not address each individual system component or specific system within an industrial facility with equal weight; however, it shall be sufficiently comprehensive to identify the malor energy efficiency opportunities for improving the overall energy performance of the system. This Standard is designed to be applied primarily at industrial facilities, but many of the concepts can be used in other facilities, such as those in the institutional and commercial sectors.
Assessments involve collecting and analyzing data on system design, operation, energy use, and performance and identifying energy performance improvements. An assessment may also include recommendations for improving resource utilization, reducing per unit production cost, reducing lifecycle costs, and improving environmental performance related to the assessed system(s). Assessment activities shall include, but are not limited to, engaging facility personnel and providing information about the assessment process; coflecting and anal zing data on energy efficiency the tentative results of the assessment, the recommended assessment measures with energy, and approximate cost savings projections, if available. The results presented in this meeting shall be qualified as preliminary, subject to needed further analysis. The target dates for the delivery of a draft and final versions of the final written report shall be set by mutual agreement.
6 ANALYSIS OF DATA FROM THE ASSESSMENT
6.1 Introduction
The purpose of the analysis is to develop, for each heating device studied, an energy balance (and material balance, when appropriate) based on the collected data, to compare the results of this energy balance with industry-accepted benchmarks, determine areas where energy efficiency could be improved, identify ways this improvement could be obtained, and, as an optional activity, conduct a financial analysis of those suggested improvements.
6.2 System Data Analysis
The asses’.ment team shall develop energy (heat) balances for the equipment evaluated during the assessment. Raw data collected during the assessment shall be used to calculate energy (heat) distribution for the system using manual calculations or software tools designed for the purpose. Where raw data are used to calculate components of the energy flois such as wall heat losses from outside surface (skin) temperatures, accepted equations, graphs, or software shall be used to conduct these supporting calculations. These calculation methods and assumptions and their sources shall be clearly documented and described in the assessment report. The heat balance for each system assessed can be presented in the form of a table or chart that illustrates energy input and its distribution, including recycling of energy, if any, within the system.
For continuous processes, the heat balance should be presented in terms of energy flow per hour (e.g., Btu/ h, kJ/h, kW, etc.). For batch processes, the heat balance should include energy flow in terms of quantity of energy (e.g., Btu, kJ, kWh, etc., per unit of production or for a specific duration or cycle time).
Data analysis results should include heat balances, energy intensity for the process equipment, and observations about equipment conditions (e.g., condition of insulation, openings, and areas of losses) not directly mentioned in the heat balance hut which provide information on future energy savings opportunities.
6.3 Calculations and Identification of Specific Energy Savings Opportunities
The assessment team shall compare the output of the energy balance analyses (reported as overall energy consumption, energy intensit or thermal efficiency).