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DRINKING, WASTEWATER & STORMWATER SYSTEMS

“Fille romaine à la fontaine” 1875 Léon Bonnat

Civilization has historically flourished around rivers and major waterways.  Mesopotamia, the so-called cradle of civilization, was situated between the major rivers Tigris and Euphrates; the ancient society of the Egyptians depended entirely upon the Nile. Rome was also founded on the banks of the Italian river Tiber. Large metropolises like Rotterdam, London, Montreal, Paris, New York City, Buenos Aires, Shanghai, Tokyo, Chicago, and Hong Kong owe their success in part to their easy accessibility via water and the resultant expansion of trade. Islands with safe water ports, like Singapore, have flourished for the same reason. In places such as North Africa and the Middle East, where water is more scarce, access to clean drinking water was and is a major factor in human development.*

With this perspective, and our own “home waters” situated in the Great Lakes, we are attentive to water management standardization activity administered by International Organization Standardization Technical Committee 224 (ISO TC/224).  The scope of the committee is multidimensional; as described in the business plan linked below:

BUSINESS PLAN ISO/TC 224

 

Water-related management standards define a very active space; arguably, as fast-moving a space as electrotechnology.   The ISO TC/224 is a fairly well accomplished committee with at least 16 consensus products emerging from a 34 nations led by Association Française de Normalisation (@AFNOR) as the global Secretariat and 34 participating nations.   The American Water Works Association is ANSI’s US Technical Advisory Group administrator to the ISO.

We do not advocate the user interest in this standard at the moment but encourage educational institutions with resident expertise — either on the business side or academic side of US educational institutions — to participate in it.   You are encouraged to communicate directly with Paul Olson at AWWA, 6666 W. Quincy Avenue, Denver, CO 80235, Phone: (303) 347-6178, Email: polson@awwa.org.

The work products of TC 224 (and ISO 147 and  ISO TC 282) are also on the standing agendas of our Water, Global and Bucolia colloquia.  See our CALENDAR for the next online meeting, open to everyone.

Issue: [13-163]

Category: Global, Water

Colleagues: Mike Anthony, Christine Fischer, Jack Janveja. Richard Robben, Larry Spielvogel

Standing Agenda / Water


Qualität der Wasserversorgung

Bucolia 100

I will arise and go now, and go to Innisfree,
And a small cabin build there, of clay and wattles made;
Nine bean-rows will I have there, a hive for the honey-bee,
And live alone in the bee-loud glade.
And I shall have some peace there, for peace comes dropping slow,
Dropping from the veils of the morning to where the cricket sings;
There midnight’s all a glimmer, and noon a purple glow,
And evening full of the linnet’s wings.
I will arise and go now, for always night and day
I hear lake water lapping with low sounds by the shore;
While I stand on the roadway, or on the pavements grey,

I hear it in the deep heart’s core.

— William Butler Yeats

Anglo-americká vysoká škola, z.ú. Czech Republic

Today we walk through literature governing the safety and sustainability of the open space features of education community estates.   Unlike the titles for the building envelope, which are known to most design professionals and contractors, the standards for grounds and landscaping are widely scattered; many of them occupational safety related; created, administered and enforced by units of government.

Bucolia 100.  We present a broad overview of the dominant standards catalogs incorporated by reference into public safety and sustainability legislation.

Bucolia 200.  We drill into technical specifics of the titles in Bucolia 100.

Bucolia 400.  We pick through case studies in landscape, garden, tree and water literature.  We also track titles about the reclamation of building roofs for permeable surfaces and gardens.

During the winter months (Bucolia 200) in the northern hemisphere we include snow and ice management; while covering summer month technologies for southern hemisphere (and vice-versa).  Snowfalls in the southern hemisphere are mainly contained to the highlands and mountain ranges, which are almost exclusively in Victoria and Southern New South Wales, as well as the mountains in Tasmania.   Winter does not pose as much of a cost burden to education facilities in the southern hemisphere as it does in the northern hemisphere.

Arboreta

Landscape standards refer to guidelines or regulations that specify the requirements for the design, installation, and maintenance of outdoor spaces such as parks, gardens, streetscapes, and public spaces. Landscape standards typically cover various aspects of landscape design, including vegetation selection, planting arrangements, irrigation systems, hardscape materials, and lighting.

These standards may be set by government agencies at the federal, state, or local level, or by professional organizations such as the American Society of Landscape Architects (ASLA). Landscape standards aim to ensure that outdoor spaces are safe, functional, and aesthetically pleasing while also promoting sustainability and environmental protection.

Landscape standards may also address issues such as accessibility for people with disabilities, water conservation, stormwater management, and erosion control. They may vary depending on the specific location, climate, and intended use of the outdoor space. Compliance with landscape standards may be required for approval of development projects, public funding, or other permits.

We track the standards catalog of two ANSI-accredited standards developers:

American Hort

Tree Care Industry Association

Additional practice titles applicable to accessory systems:

ASABE/ICC 802 Landscape Irrigation Sprinkler and Emitter Standard 

ASHRAE 90.1 Energy Standard for Sites and Buildings

Golf Course Superintendents Association of America

National Electrical Code: Article 411 Low-Voltage Lighting

Upcode Article 411

National Electrical Code: Article 225: Outside Branch Circuits and Feeders

Illumination Engineering Society (Lighting Library)

IoT Enabled Smart Gardening

Land F/X: Landscape Lighting, Codes, Guidelines and Techniques  

OSHA Landscape and Horticultural Services

Sports Turf Managers Association

As a cross-cutting subjectSports Turf Managers Association ( involving soil and water and sun many other standards developers, and all levels of government, produce best practice literature for today’s topic.  We’ll have a look at what’s moving among those.

To join us use the login credentials at the upper right of our home page.

Keeping Soil Alive

Lightning protection techniques for roof-top PV systems

Lightning protection techniques for roof-top PV systems

Narjes Fallah, et. al

Centre for Electromagnetic and Lightning Protection Research (CELP), Electrical & Electronic Engineering Department, Universiti Putra Malaysia, Malaysia

ABSTRACT: In this paper, the lightning protection requirements of a typical residential building have been discussed and techniques have been provided to protect the building from both direct and indirect damages of lightning, with special attention to the protection of PV panels placed on the roof. These techniques include the designing challenges and also the type of devices which can be used to reduce the surge current flow and magnetic field. It has been shown that for buildings with roof top PV systems only the avoidance of lightning attachment to unprotected parts of the building is not sufficient. Lightning currents passing through the lightning protection system may still affect the PV power system through inductive coupling. Hence strategic placement of PV systems and shielding of conducting systems wherever possible has been recommended. It has also been envisaged that the impact of lightning on PV systems is directly related to the isokeraunic level of the region and elevation of the building. Several recommendations have been proposed in designing the air termination system for a roof with PV panels in high isokeraunic regions. Finally the building integrated photo voltaic (BIPV) projects which are conducted in Malaysia have been evaluated..

 

CLICK HERE to order complete paper.

 

Readings:

IEEE Guide for Solar Power Plant Grounding for Personnel Protection

Risk Assessment of Rooftop-Mounted Solar PV Systems

Analysis of Lightning Surge Effects on Small-Scale Rooftop Photovoltaic Systems

Dehn-International White Paper: Lightning and surge protection for rooftop photovoltaic systems

Lightning Protection Systems

 

Lightning Protection Systems

Arboreta

“On Holiday (Girl resting on the grass)” 1879 Kuznetsov Nikolai Dmitrievich

University of Michigan Matthaei Botanical Gardens

St. John’s University

University of Florida

Harvard University

Lunds universitet Scania

Swarthmore College Pennsylvania

Ruhr-Universität Bochum

Anglo-americká vysoká škola, z.ú. Czech Republic

Michigan State University

University of the Ozarks

 

Freie Universität Berlin

Kent State University

Uniwersytet Warszawski

Nanyang Technological University, Singapore

 

Bard College / New York

Michigan State University Healing Garden

Japanese Garden | Normandale Community College Minnesota

东北师范大学 | Northeast Normal University | Changchun, Jilin, China

University of Michigan | Matthaei Botanical Gardens

Shenandoah University | Winchester, Virginia

Princeton University Secret Garden | Photo by Sarah Ly

King’s College | London, United Kingdom

 

École Normale Supérieure | Paris, France

Arizona Cactus Garden | Stanford University

Duke University / North Carolina

Oxford University

University of Minnesota Landscape Arboretum

University of Helsinki Botanical Garden

University of Notre Dame / South Bend, Indiana

University of Tromsø the Arctic University of Norway

Florida Tech Botanical Garden

University of Nottingham

Smith University Botanical Garden

Aarhus University | Denmark

 

High Point University | North Carolina

Universiteit Stellenbosch | Western Cape, South Africa

Louisiana State University

Albert-Ludwigs-Universität Freiburg

Rutgers University

Great Court University of Queensland Australia

University of Oklahoma

Wageningen University | The Netherlands

More

Bucolia 200

Trees

Nursery Stock

 

Air Conditioning

Ancient Air Conditioning | CLICK ON IMAGE

Today at 15:00 UTC we will review the latest in best practice literature for air conditioning systems.  Note that we have broken out this topic from the standing Mechanical colloquia.  Catalogs on the agenda:

ACCA

Air Conditioning System Construction & Maintenance

Air-Conditioning, Heating, and Refrigeration Institute

Standards and Guides

ASHRAE International

Standard 90.1-2022—Energy Standard for Sites and Buildings Except Low-Rise Residential Buildings

Standard 90.4 Energy Standard for Data Centers

ASME

Heating, Ventilating and Air-Conditioning Systems

IEEE

Occupant-Based HVAC Thermal Setpoints

International Code Council

International Building Code Interior Environment & HVAC Systems

International Mechanical Code Chapter 11 Refrigeration

NFPA

National Electrical Code Article 430: Motors, Motor Circuits and Motor Controllers

Standard for the Installation of Air-Conditioning and Ventilating Systems

Underwriters Laboratories (largely product standards, not embedded system nor interoperability titles)

Uptime Institute

Implementing Data Center Cooling Best Practices


Use the login credentials at the upper right of our home page


University of Rochester Central Utilities Plant Absorption Chiller

Issues: [11-67, 15-124, 15-135, 15-165]

Category: Energy, Mechanical

Colleagues: Mike Anthony, Larry Spielvogel, Richard Robben


 

 

Beef Teaching Farm

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Exploration of the Theory of Electric Shock Drowning

Exploration of the Theory of Electric Shock Drowning

Jesse Kotsch – Brandon Prussak – Michael Morse – James Kohl

University of San Diego

Abstract:  Drowning due to electric shock is theorized to occur when a current that is greater than the “let go” current passes through a body of water and conducts with the human body. Drowning would occur when the skeletal muscles contract and the victim can no longer swim. It is theorized that the likelihood of receiving a deadly shock in a freshwater environment (such as a lake) is higher than the likelihood in a saltwater environment (such as a marina). It is possible that due to the high conductivity of salt water, the current shunts around the individual, while in freshwater, where the conductivity of the water is lower than that of the human; a majority of the current will travel through the individual. The purpose of this research is to either validate or disprove these claims. To address this, we used Finite Element analysis in order to simulate a human swimming in a large body of water in which electric current has leaked from a 120V source. The conductivity of the water was varied from .005 S/m (pure water) up to 4.8 S/m (salt water) and the current density through a cross sectional area of the human was measured. With this research, we hope to educate swimmers on the best action to take if caught in such a situation.

CLICK HERE to order complete paper.

Marina & Boatyard Electrical Safety

Facilities Management

Plan de estudios de verano Semana 27 | 3 de julio – 9 de julio

Universidad de San Andrés | Área Metropolitana de Buenos Aires


lunes | julio 3 | Colloquium 15:00 UTC

Colloquy


martes | julio 4 | Colloquium 15:00 UTC

No session today in observance of United States national holiday.

Ædificare


miércoles | julio 5 | Colloquium 15:00 UTC

Occupancy Classification & Use

Hammurabi

 


jueves | julio 6 | Colloquium 15:00 UTC

Energy 200


viernes | julio 7 | Colloquium 15:00 UTC

رياضة


sábado |  julio 8


domingo | julio 9


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