PageWinter Archives - Page 2 of 3

Brickwork

“American Bricklayer” 1904 | Alice Ruggles

Curling

Scientific American: Why Do Curling Stones Curl?

University of Alberta: The evolution of elite hockey culture in Canada

As of my last knowledge update in January 2022, St. Ambrose University is located in Davenport, Iowa, United States

https://www.sau.edu/student-life/wellness-and-recreation/club-sports

A curling facility typically consists of several key components to support the sport and provide a suitable environment for players and spectators. Here are the main parts of a curling facility:

Curling Sheets/Ice Rink:
- The playing surface is called a “sheet,” and it is a rectangular area of ice where the game is played. Each sheet is divided into several sections called “curling houses,” which are the target circles.
Curling Stones:
- Curling stones are made of granite and weigh around 38 to 44 pounds. Each team has eight stones, and players take turns sliding them down the ice towards the target area, known as the house.
Curling House:
- The house is the target area with concentric circles marked on the ice. The center of the house is the “button,” and the circles are used for scoring points.
Hacks:
- The hacks are footholds on either end of the sheet where players push off to slide the stones. The player in control of the stone uses the hack as a starting point for their delivery.
Curling Brooms:
- Brooms, also known as brushes, are used by players to sweep the ice in front of the sliding stone. Sweeping can affect the stone’s trajectory and speed.
Scoreboard:
- A scoreboard is essential for keeping track of the score in a curling game. It typically displays the current score, the end in progress, and other relevant information.
Locker Rooms:
- Players use locker rooms for changing into their curling attire and storing their personal belongings.
Warm-up Area:
- A designated area where players can warm up before a game. It may include stretching space and possibly a small practice sheet.
Clubhouse/Facility Building:
- A facility usually has a clubhouse or main building that includes amenities such as viewing areas, meeting rooms, a bar, and possibly a restaurant.
Ice Maintenance Equipment:
- Equipment like ice resurfacers or Zambonis are used to maintain the quality of the ice surface between games.
Spectator Seating:
- Facilities often provide seating for spectators to watch the games. The layout may include bleachers or individual seats.
Pro Shop:
- Some curling facilities have a pro shop where players can purchase or rent equipment, such as curling stones, brooms, and accessories.

These components together create a suitable environment for playing and enjoying the sport of curling. The exact features may vary depending on the size and level of the facility.

The exact origins of curling are not well-documented, but the sport has a long and rich history that is believed to date back several centuries. Curling is thought to have originated in Scotland, and its roots can be traced back to medieval times. The first written record of curling dates back to 1541 in the records of the Scottish city of Paisley, where a challenge was issued for a contest on the ice between two rival churches.

The early form of the game involved players sliding stones across frozen ponds and lochs, attempting to reach a target. Over time, the sport evolved, and rules were established. Early versions of curling stones were likely rudimentary compared to the polished granite stones used today.

One of the key developments in the evolution of curling was the standardization of rules. The Grand Caledonian Curling Club, formed in 1838 in Scotland, played a significant role in establishing and codifying the rules of the game. The club later became the Royal Caledonian Curling Club (RCCC).

Curling gradually gained popularity in Scotland and spread to other parts of the world, especially among Scottish immigrants. The sport found a home in Canada in the 18th century, where it has become particularly popular. The first curling club in North America, the Montreal Curling Club, was established in 1807.

As the sport continued to grow, international competitions and championships were organized. The Royal Caledonian Curling Club became a central governing body, and the World Curling Federation was established in 1966 to oversee the sport at the global level.

Today, curling is played and enjoyed by people of all ages and skill levels worldwide. It is a winter sport that is featured in major international competitions such as the Winter Olympics, where it has gained a significant following. The strategic and social aspects of the game, along with its unique blend of precision and camaraderie, contribute to its enduring popularity.

The term “curling” is thought to derive from the way the stone moves and “curls” as it travels over the ice. The key feature of curling that sets it apart from other ice sports is the deliberate rotation, or “curl,” applied to the stones as players release them. This rotation causes the stone to curve or “curl” on its path down the ice, adding an element of strategy to the game.

The precise origin of the term is not definitively known, but it likely emerged organically as people described the action of the stones on the ice. The word “curling” has been associated with the sport for centuries, and as the game evolved and gained popularity, the term became firmly established.

The concept of curling is integral to the sport’s strategy, as players use the curl to navigate the stones around guards and other stones strategically placed on the ice. The unique way in which the stones move and interact with the playing surface is one of the defining characteristics of curling, and the name captures this distinctive feature

Winter Week 4 | January 22 – 28

“Im tiefen Winter” 1923 | Richard Freiherr von Drasche-Wartinberghttps://t.co/m7Yd9fKKr7 pic.twitter.com/U6Zd0P1k0H

— Standards Michigan (@StandardsMich) January 24, 2024

Monday | January 22 | Colloquium 16:00 UTC

மொழி

“Bohemian Rhapsody” sing-along at Rud (Hauger, Norway) Senior High School
print(“Lunch Hour 1600 UTC”)\n weekday(2)https://t.co/foJEWwNjYL https://t.co/5EeolHtBhy https://t.co/oy5dk4olHF pic.twitter.com/ky7IfIC2Dy

— Standards Michigan (@StandardsMich) October 4, 2023

Tuesday| January 23 | Colloquium 16:00 UTC

Health 400

Wednesday | January 24 | Colloquium 16:00 UTC

Acoustics

The Acoustical Society of America with some great advice on the acoustic design of lobbies and entrance halls: https://t.co/IrPZSvSaO9 pic.twitter.com/uZsBGwnyGN

— Husht Acoustics (@HushtAcoustics) October 5, 2018

Thursday | January 25 | Colloquium 16:00 UTC

Pathways 100

Friday | January 26 | Colloquium 16:00 UTC

Winter Sport

Saturday | January 27

Sunday | January 28

Occupant-Based HVAC Thermal Setpoints

Occupant-based HVAC Set Point Interventions for Energy Savings in Buildings

Dimas Ardiyanto

PT PLN (Persero), Jakarta, Indonesia

Manisa Pipattanasomporn & Saifur Rahman

Virginia Tech – Advanced Research Institute, Arlington, VA, USA

Nanang Hariyanto & Suwarno

School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Indonesia

Abstract: Energy savings and occupant thermal comfort are the two most important factors in controlling heating ventilation and air conditioning (HVAC) operation in buildings. Typically, it is found that thermal comfort is not always met in buildings. Hence, there is still an opportunity to improve indoor thermal comfort, and at the same time save energy by controlling HVAC set points. The objective of this paper is to propose a method to obtain energy savings by adjusting HVAC set points based on occupant comfort measured using Predicted Mean Vote (PMV) and occupancy information. The idea is to calculate hourly PMV values based on real-time occupancy information, indoor temperature set points and humidity in a building. Then, a new set of temperature set points that can maintain occupant comfort, i.e., PMV = 0, is derived. To evaluate the effectiveness of the proposed method, a building model is developed in eQUEST using the information from a real-world building located in Alexandria, VA. Research findings indicate that HVAC electrical consumption savings of 14.58% is achieved when the proposed set point adjustment method is implemented as compared to that of the base case. To study the impact of adding occupancy information on HVAC energy savings, another scenario is simulated where HVAC set point is increased when the building is unoccupied, e.g., during lunchtime or holidays. Research findings indicate that additional HVAC electrical consumption savings of 8.79% is achieved when taking into account occupancy information in HVAC control.

Document Sections

I. Introduction

II. PMV as an Index for Thermal Comfort

III. Experiment Set Up To Capture Occupancy Information

IV. Building Model Development in Equest

V. Energy Savings From Comfort Adjustment And Occupancy Information

CLICK HERE for ordering Information for this article

Heat Tracing Installation

“Vue de toits (effet de neige)” 1878 Gustave Caillebotte

One of the core documents for heat tracing is entering a new 5-year revision cycle; a consensus standard that is especially relevant this time of year because of the personal danger and property damage that is possible in the winter months. Education communities depend upon heat tracing for several reasons; just a few of them listed below:

Ice damming in roof gutters that can cause failure of roof and gutter structural support
Piping systems for sprinkler systems and emergency power generation equipment
Sidewalk, ramp and stairway protection

IEEE 515 Standard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Trace Heating for Industrial Applications is one of several consensus documents for trace heating technology. Its inspiration originates in the petrochemical industry but its principles apply to all education facilities exposed to cold temperature and snow. From its prospectus:

This standard provides requirements for the testing, design,installation, and maintenance of electrical resistance trace heating in general industries as applied to pipelines, vessels, pre-traced and thermally insulated instrument tubing and piping, and mechanical equipment. The electrical resistance trace heating is in the form of series trace heaters, parallel trace heaters, and surface heating devices. The requirements also include test criteria to determine the suitability of these heating devices utilized in unclassified (ordinary) locations.

Its principles can, and should be applied with respect to other related documents:

National Electrical Code Article 427

NECA 202 Standard for Installing and Maintaining Industrial Heat Tracing Systems

IEC 62395 Electrical resistance trace heating systems for industrial and commercial applications

ASHRAE 90.1 Energy Standard for Buildings Except Low-Rise Residential Buildings

Lowell House / Harvard University

We are happy to explain the use of this document in design guidelines and/or construction specifications during any of our daily colloquia. We generally find more authoritative voices in collaborations with the IEEE Education & Healthcare Facilities Committee which meets 4 times per month in Europe and in the Americas. We maintain this title on the standing agenda of our Snow & Ice colloquia. See our CALENDER for the next online meeting.

Issue: [18-331]

Colleagues: Mike Anthony, Jim Harvey, Kane Howard

Category: Electrical, #SmartCampus

LEARN MORE:

Good Building Practice for Northern Facilities

Electrical Heat Tracing:International Harmonization Now and in the Future, IEEE Industry Standards Magazine, May/June 2002 pages 50-56

The Deer Laboratory

“The Monarch of the Glen” 1851 Sir Edwin Landseer:

Research Bibliography

Alabama

Church heating: Comparison of different strategies

Politecnico di Milano

Church heating: Comparison of different strategies

N. Aste. et al

Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano

Abstract: Church heating represents a challenging task because multiple goals have to be fulfilled simultaneously, such as the thermal comfort for the occupants and the optimal internal environmental conditions for the preservation of building components and artworks. In addition, current requirements for environmental and economic sustainability impose to make efforts to minimize the amount of energy needed and the consequent environmental/economic impact. In this context, the present work represents the assessment of the energy, environmental and economic impact of different strategies for church heating, including a novel technology based on the exploitation of renewable energies. The analysis was carried out in a real case-study building, represented by the Basilica di S. Maria di Collemaggio (L’Aquila, Italy), a church of worldwide relevance, currently under restoration.