Performance Monitoring for Power Plants

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Performance Monitoring for Power Plants

August 24, 2023
mike@standardsmichigan.com

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“A View of Murton Colliery near Seaham, County Durham” (1843) / John Wilson Carmichael

The American Society of Mechanical Engineers (ASME) has registered a Project Initiation Notification with ANSI to launch a revision to its consensus product ASME PM-202x, Performance Monitoring for Power Plants.  This product should interest stakeholders in involved in college and universities with district energy plants — facility management staffs, consulting engineers, operations and maintenance staff.

From the project prospectus:

These Guidelines cover fossil-fueled power plants, gas-turbine power plants operating in combined cycle, and a balance-of-plant portion including interface with the steam supply system of nuclear power plants.  They include performance monitoring concepts, a description of various methods available, and means for evaluating particular applications.

Since the original publication of these Guidelines in 1993—then limited to steam power plants—the field of performance monitoring (PM) has gained considerable importance.  The lifetime of plant equipment has been improved, while economic demands have increased to extend it even further by careful monitoring.  The PM techniques themselves have also been transformed, largely by the emergence of electronic data acquisition as the dominant method of obtaining the necessary information.

These Guidelines present:

• “Fundamental Considerations”—of PM essentials prior to the actual application, so you enter fully appraised of all the requirements, potential benefits and likelihood of tradeoffs of the PM program. 

• “Program Implementation”—where the concepts of PM implementation, diagnostics and cycle interrelationships have been brought into closer conjunction, bringing you up-to-date with contemporary practice.

• “Case Studies / Diagnostic Examples”—from the large amount of experience and historical data that has been accumulated since 1993.

Intended for employees of power plants and engineers involved with all aspects of power production.

From ANSI’s PINS registry:

Project Need: This document is being developed in order to address performance monitoring and optimization techniques for different power generating facilities. The latest trends and initiatives in performance monitoring as well as practical case studies and examples will be incorporated.

Stakeholders: Designers, producers/manufacturers, owners, operators, consultants, users, general interest, laboratories, regulatory/government, and distributors.

This document will cover power generation facilities including steam generators, steam turbines, and steam turbine cycles (including balance of plant of nuclear facilities), gas turbines, and combined cycles. The guidelines include performance monitoring concepts, a description of various methods available, and means for evaluating particular applications.

No comments are due at this time.   The PINS announcement was placed on October 11th*.   The PINS registry is a stakeholder mapping platform that identifies the beginning of a formal process that may interest other accredited, competitor standards developers.   Many ASME consensus products may be indirectly referenced in design guidelines and construction contracts with the statement “Conform to all applicable codes”

The landing page for the ASME standards development enterprise is linked below:

ASME C&S Connect

Note that you will need to set up a (free) account to access this and other ASME best practice titles.

We maintain all ASME consensus products on the standing agenda of our periodic Mechanical and Energy teleconferences.   See our CALENDAR for the next online meeting; open to everyone.

University of Michigan

Issue: [19-148]

Category: District Energy, Energy, Mechanical

Colleagues: Richard Robben, Larry Spielvogel


LEARN MORE:

ANSI Standards Action

Boiler & Pressure Vessel Code

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August 23, 2023
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Apple Tree Anatomy

August 22, 2023
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Nourriture

Grid-Connected Microgrid Battery Energy Storage Systems

August 22, 2023
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Overview of Technical Specifications for Grid-Connected Microgrid Battery Energy Storage Systems

A. Rahman Khalid, et. al

Abstract:  Increasing distributed topology design implementations, uncertainties due to solar photovoltaic systems generation intermittencies, and decreasing battery costs, have shifted the direction towards integration of battery energy storage systems (BESSs) with photovoltaic systems to form renewable microgrids (MGs). Specific benefits include, but are not limited to, seamless switching and islanding operations during outages and ancillary grid services. The evolution of battery chemistries and other components has also further enhanced practicality; however, developing these multifaceted MGs involves complexity in the design process. Consequently, stakeholders rely on connection standards and operational requirements to guarantee reliable and safe grid-connected operations.

This paper presents a technical overview of battery system architecture variations, benchmark requirements, integration challenges, guidelines for BESS design and interconnection, grid codes and standards, power conversion topologies, and operational grid services. In addition, a comprehensive review of the control strategies for battery equalization, energy management systems, communication, control of multiple BESSs, as well as a discussion on protection blinding and intentional islanding using BESSs is also provided. Finally, a discussion of the islanded and black start operation results for time-based analysis and standard validation of a 3MW/9MWh BESS in a grid-connected MG at the Florida International University (FIU) Engineering Campus is presented.

Electrical Safety in the Workplace

August 21, 2023
mike@standardsmichigan.com
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Nicola Tesla in his Laboratory | Click image

 

The NFPA suite of electrical safety titles are most familiar to the education facility safety community because NFPA documents run deeply in local public safety culture; dominated by an over-arching concern for protection from fire.

The NFPA 70-series of documents are developed according to ANSI-accredited due process requirements that features a comparatively rigorous administration of stakeholder balance; much more so than the electrotechnology consensus documents prepared by the Institute of Electrical and Electronic Engineers Standards Association which is much broader in global reach.

Generally speaking, the IEEE — the world’s largest professional association — is dominated by electrotechnology experts who work on behalf of the user-interest in the US standards system; hence our close collaboration with the IEEE Education and Healthcare Facilities Committee as the the emergent #WiseCampus rolls out.  We also present an informed vote supported by the IEEE Industrial Applications Society.

University of Washington

The cultural difference between fire safety community and the electrotechnology community must be understood in order to understand how, why and where the NFPA-70 series of documents harmonize and conflict with IEEE Standards Association electrical safety codes and standards.   You find an abundance of academic faculty and researchers developing IEEE documents; not so many of the same developing NFPA documents.

We list the complete NFPA 70-suite below:

NFPA 70 National Electrical Code® (2020)

NFPA 70A National Electrical Code® Requirements for One- and Two-Family Dwellings[1]

NFPA 70B Recommended Practice for Electrical Equipment Maintenance

NFPA 70E Standard for Electrical Safety in the Workplace®

Note that two on the foregoing list receives special (legal) handling as “code”.

We provide links to the transcripts of the 2024 technical committee meetings to show the scope of discussion that goes into the preparation of this document:

Electrical Safety in the Workplace (EEW-AAA)

Public Input Report

Public Comment Report

The circumstances of the pandemic have restrained the normal course of business at NFPA, as it has most other standards developers.  We make near-daily contact with many NFPA titles so click in any day at 15:00 UTC for an update.

Public Input on the 2027 Revision will be received until June 4, 2024.

We are happy to discuss proposals for the next revision of NFPA 70E any day at 15:00 UTC but direct you to the possibility of more detailed discussion during any of the bi-weekly online meetings of the IEEE Education and Healtcare Facilities Committee.[2]

Issue: [3-3], [6-4], [10-14], [12-19], [15-160] and [18-135]

Category: Electrical, Public Safety, Risk Management

Colleagues: Mike Anthony, Jim Harvey, Joe Tedesco

 

[1] Many colleges and universities own and operate real assets that are covered by residential building codes; frequently on the perimeter of a campus or farther off-site as in the case of residential assets that are donated to the university.   We generally confine our advocacy to education facilities that are classified as commercial and covered by NFPA 70, 70B and 70E, though we are happy to consult with facility managers on NFPA 70A as necessary.

[2] Standards Michigan is undertaking a 50-state rollout during 2019 because, among other reasons, national committees across the entire span of accredited standards, tend to be dilutive.  We want to offer more support for state exceptions to the codes and standards that affect the safety and sustainability goals of the education industry.

Archive / NFPA 70E Electrical Safety in the Workplace

Intermediate Welding

August 21, 2023
mike@standardsmichigan.com

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Kerry College — founded in the early 1970’s s as Tralee Regional Technical College — has since expanded its programs and facilities, becoming a hub for education and skill development in Kerry County.  In 2007, the institution underwent a significant transformation and was renamed the Institute of Technology Tralee reflecting its growth and status as a higher education institution offering undergraduate and postgraduate programs in business and the arts.

Relevant Standards:

International Standardization Organization

ISO 3834 – Quality requirements for fusion welding of metallic materials.
ISO 9606 – Qualification testing of welders.
ISO 14731 – Welding coordination – Tasks and responsibilities.
ISO 15614 – Specification and qualification of welding procedures for metallic materials.

American Welding Society

AWS D1.1 – Structural Welding Code – Steel (published by the American Welding Society, but widely used internationally).
AWS D1.2 – Structural Welding Code – Aluminum (also published by the American Welding Society but recognized internationally for aluminum welding).

European Commission

EN ISO 9606 – Qualification testing of welders.
EN ISO 3834 – Quality requirements for fusion welding of metallic materials (European version of ISO 3834).

These provide guidelines, specifications, and requirements for various aspects of welding processes, materials, and qualifications. Keep in mind that there are many other specific standards for different industries and materials, so it’s essential to refer to the relevant standard for your specific welding application and location. Additionally, standards can be updated or revised over time, so it’s advisable to check with the respective standard-setting organizations for the most current versions.

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