Tag Archives: December

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Electrical heat tracing: international harmonization-now and in the future

 

Electrical heat tracing: international harmonization-now and in the future

C. Sandberg

Tyco Thermal Controls

N.R. Rafferty – M. Kleinehanding – J.J. Hernandez

E.I. DuPont de Nemours & Company, Inc 

 

Abstract:  In the past, electrical heat tracing has been thought of as a minor addition to plant utilities. Today, it is recognized as a critical subsystem to be monitored and controlled. A marriage between process, mechanical, and electrical engineers must take place to ensure that optimum economic results are produced. The Internet, expert systems, and falling costs of instrumentation will all contribute to more reliable control systems and improved monitoring systems. There is a harmonization between Europe and North America that should facilitate design and installation using common components. The future holds many opportunities to optimize the design.

CLICK HERE to order complete paper

 


Heat Tracing Installation

Industrial electroheating and electromagnetic processing

Pipe Heating

Heat Tracing

Dahlgren Hall & “Seasoned” Coffee Mug Stories

Named after Rear Admiral John A. Dahlgren, an influential figure in the development of naval ordnance.  Its large, open space was ideal for indoor drills and military exercises. The hall was constructed between 1899 and 1903. Its design was overseen by Ernest Flagg, a prominent architect who designed several buildings at the Naval Academy. Today it houses the Drydock Restaurant, a gathering place for midshipmen, faculty, and visitors.


Named after Rear Admiral John A. Dahlgren (1809-1870) an influential figure in the development of naval ordnance during the United States Civil War.  It  served as an armory and drill hall for midshipmen. Its open space was ideal for indoor drills and military exercises.

The hall was constructed between 1899 and 1903. Its design was overseen by Ernest Flagg, a prominent architect who designed several buildings at the Naval Academy.  Today it houses the Drydock Restaurant, a gathering place for midshipmen, faculty, and visitors.

“How to Achieve the Ultimate Filthy Navy Coffee Mug”

Military

Servicemen’s Readjustment Act

ROTC

Meals-Ready-to-Eat

“Eternal Father, Strong to Save”

Turkey Pot Pie Soup

Cornell University Dining: Student & Campus Life

Number of servings per recipe: 8

Number of servings per recipe: 8

Ingredients:

  • 1/4 cup flour
  • 2 cups turkey stock
  • 4 cups fat free milk
  • 2 large celery stalks, chopped
  • 1 1/2 cups chopped onion
  • 8 oz sliced cremini mushrooms
  • Salt and pepper to taste
  • 2 Tablespoons chopped parsley
  • 8 oz frozen peas and carrots
  • 1 teaspoon turkey bullion
  • 2 medium potatoes, cubed small
  • 16 oz cooked turkey breast, diced small or shredded

Directions:

  • 1.Create a slurry by combining 1/2 cup of the cold broth with flour in a medium bowl and whisk until well blended. Set aside.
  • 2.Pour remaining broth and milk into a large pot and slowly bring to a boil.
  • 3.Add celery, onion, mushrooms, parsley, fresh pepper, frozen vegetables, and bullion, and return to a boil. Partially cover and simmer on low until vegetables are soft, about 20 minutes.
  • 4.Remove lid, add potatoes and cook until soft, about 5 minutes.
  • 5.Add turkey, and slowly whisk in slurry, stirring well as you add. Cook another 2-3 minutes, until soup thickens, adjust salt and pepper to taste and serve.

*Recipe from Skinny Taste

Nutrition Information: 1 1/3 cups| servings per recipe: 8 | Calories: 192, total fat: 2 g, saturated fat: 0 g, trans fat: 0 g; cholesterol: 1.3 mg, sodium: 159 mg, carbohydrates: 27 g, fiber: 8.3 g, sugar: 8.5 g, protein: 18 g

Standards New York

Sinterklaas Koffie

Nederland | Koninklijk Nederlands Normalisatie Instituut | NEN 1010 (IEC 60364)

An “gezelligheid” moment on the evening of December 5th (Sinterklaasavond). Adults gather after children go to bed with gifts (remember children?), enjoying strong coffee generously laced with genever or another jenever-like spirit, often spiced with cinnamon or anise. Sometimes topped with whipped cream, it warms the festive mood while singing traditional Sinterklaas songs and sharing stories of Sint and his Zwarte Pieten who arrive on a boat from Spain.

Readings:

The Heritage Foundation: Interview with Dutch Scholars on Marriage

Christmas Bread & “Liberty Teas”

Liberty Teas

https://www.suffolk.edu/news-features/news/2023/12/13/20/47/on-the-tea-party-trail

Having visited my great grandmother, Omi, in Germany multiple times growing up, I’ve always had a special connection to German baked goods. While I have yet to find the perfect German pretzel in the U.S. or a recipe that yields a decent replica, I have discovered that stollen — a traditional German Christmas bread — is relatively easy to recreate in my own kitchen.” — Alison Tashima, Class of 2024

Click image for recipe

Standards Virginia

More:

Thomas Jefferson’s Masterpiece

University of Virginia Financial Report: 2023 Net Position $12.580B

University of Virginia Capital Construction & Renovations

Raw Milk & “Vols Snacks”

Observatories & Planetariums

 

“I know that I am mortal by nature, and ephemeral;

but when I trace at my pleasure the windings to and fro of the heavenly bodies,

I no longer touch Earth with my feet:

I stand in the presence of Zeus himself and take my fill of ambrosia.”

— Ptolemy, “Mathematike Syntaxis” 150 A.D

 

Galileo Demonstrating His Telescope In 1609

Planetariums in schools and colleges play a central in enhancing astronomy and astrophysics education. They provide immersive experiences that can ignite students’ interest and curiosity about the universe, making complex astronomical concepts more comprehensible and engaging.  Observatories do much that but with direct access to telescopes and other observational tools — frequently away from campus — thus allowing them to engage in hands-on learning and real-time data collection.

Establishing research and teaching programs present special occupancy challenges. The cost of high-quality telescopes and equipment, along with the need for a suitable location with minimal light pollution, can be substantial. Additionally, schools require trained staff to guide students in using the equipment and interpreting data. Weather conditions and geographical location also impact the effectiveness of observatories. Despite these hurdles, the educational value of observatories is immense, providing students with unique opportunities to explore the universe and cultivate a passion for scientific inquiry.

Today we examine both occupancies using our SAFER-SIMPLER-LOWER COST-LONGER LASTING discipline.  Use the login credentials at the upper right of our home page at the usual hour.

Purdue University: Grand Universe planning liftoff in Hamilton County

The International Building Code includes various sections that address safety requirements relevant to observatories and planetariums. Key parts of the IBC that cover these requirements include:

  1. Chapter 3: Use and Occupancy Classification
    • Section 303: Assembly Group A. Planetariums and observatories often fall under Assembly Group A due to their function as places where people gather for educational and entertainment purposes. Specific occupancy types and associated requirements will be detailed here.
  2. Chapter 4: Special Detailed Requirements Based on Use and Occupancy
    • Section 410: Stages, Platforms, and Technical Production Areas. While not specific to planetariums, this section provides guidance on assembly spaces, which may be applicable to the design and safety considerations for the auditorium areas in planetariums.
  3. Chapter 11: Accessibility
    • Section 1103: Scoping Requirements. This section ensures that buildings are accessible to individuals with disabilities, which is crucial for public facilities like planetariums and observatories.
    • Section 1104: Accessible Routes. Requirements for accessible paths to ensure ease of access to and within the facility.
  4. Chapter 12: Interior Environment
    • Section 1203: Ventilation. Adequate ventilation is essential in enclosed spaces like planetariums to ensure air quality and comfort.
    • Section 1205: Lighting. Ensuring appropriate lighting levels and types, which is crucial in areas like control rooms and observational spaces.
  5. Chapter 15: Roof Assemblies and Rooftop Structures
    • Section 1509: Rooftop Structures. Covers the installation and safety of rooftop observatories, which can include structural requirements and access considerations.
  6. Chapter 16: Structural Design
    • Section 1604: General Design Requirements. Ensures that the structure can support both the static and dynamic loads associated with heavy equipment like telescopes.
    • Section 1607: Live Loads. Specific load requirements for observatory equipment and public assembly areas.

These chapters collectively ensure that planetariums and observatories are designed and constructed with safety, accessibility, and functionality in mind. For detailed information, it is recommended to refer to the latest edition of the IBC and consult with a professional knowledgeable in building codes and standards.

Denison receives major gift to transform planetarium


Designing and building a telescope for teaching and light research at a college or university requires a detailed consideration of both the telescope itself and the supporting infrastructure. Here are the central architectural features:

Telescope Structure:

  1. Optical System:
    • Aperture Size: A medium to large aperture (typically 0.5 to 1.5 meters) to gather sufficient light for educational and light research purposes.
    • Type of Telescope: Reflecting (Newtonian, Cassegrain, or Ritchey-Chrétien) or refracting telescope, chosen based on specific educational and research needs.
    • Mount: A sturdy, precise mount (equatorial or alt-azimuth) to support the telescope and ensure smooth tracking of celestial objects.
  2. Enclosure:
    • Dome or Roll-Off Roof: A protective structure to house the telescope, with a retractable roof or dome to allow for unobstructed viewing.
    • Material: Weather-resistant materials such as aluminum or fiberglass, designed to protect the telescope from the elements.
  3. Control Systems:
    • Computerized Controls: For automatic tracking and alignment of celestial objects, often including software for scheduling and managing observations.
    • Remote Operation Capabilities: Allowing students and researchers to control the telescope remotely for data collection and analysis.

Support Infrastructure:

  1. Observation Deck:
    • Viewing Platforms: Elevated platforms around the telescope for students to observe through the telescope and participate in hands-on learning.
    • Safety Features: Railings and non-slip surfaces to ensure safety during nighttime observations.
  2. Control Room:
    • Location: Adjacent to the telescope enclosure, with visibility to the telescope for direct supervision.
    • Equipment: Computers, monitors, data storage, and communication equipment to control the telescope and process observational data.
  3. Classroom and Lab Spaces:
    • Multipurpose Rooms: For lectures, demonstrations, and data analysis related to astronomy and telescope use.
    • Laboratory Equipment: Spectrometers, cameras, photometers, and other instruments for conducting light research and analyzing data collected from the telescope.
  4. Data Processing and Storage:
    • Computing Facilities: High-performance computers and software for analyzing astronomical data.
    • Data Storage Solutions: Secure and scalable storage for large volumes of observational data.
  5. Accessibility Features:
    • Elevators and Ramps: To provide access to all areas of the facility, including the observation deck and control room.
    • Adapted Equipment: Adjustable eyepieces and controls to accommodate users with disabilities.
  6. Lighting:
    • Red Lighting: Low-intensity red lights for night-time use to preserve night vision while allowing safe movement.
    • Exterior Lighting: Shielded lighting around the facility to minimize light pollution and ensure optimal observing conditions.

By integrating these architectural features, a college or university can create a functional and effective observatory that supports both teaching and light research in astronomy.

University of Michigan | Detroit Observatory

Designing and building a planetarium for public use involves careful consideration of various architectural features to ensure functionality, aesthetics, and a positive visitor experience. Here are the central architectural features required:

  1. Dome Structure:
    • Shape and Size: The dome must be a perfect hemisphere to provide an unobstructed view of the projected sky. The size should be large enough to accommodate the intended audience while ensuring good visibility from all seating positions.
    • Material: Typically constructed from aluminum or fiberglass, with an inner surface coated to enhance the projection quality.
  2. Projection System:
    • Projectors: High-resolution digital projectors or traditional optical-mechanical projectors are essential for displaying realistic night skies, astronomical phenomena, and educational shows.
    • Sound System: High-quality surround sound systems to complement visual projections, enhancing the immersive experience.
  3. Seating Arrangement:
    • Tilted Seats: Reclined and tiered seating ensures all viewers have an unobstructed view of the dome.
    • Accessibility: Include spaces for wheelchairs and accessible seating to accommodate all visitors.
  4. Control Room:
    • Location: Typically located at the rear or side of the planetarium for ease of access and control.
    • Equipment: Houses computers, projection equipment, sound systems, and control panels for show operations.
  5. Entrance and Exit Points:
    • Flow Management: Design multiple entrances and exits to manage the flow of visitors efficiently and safely, avoiding congestion.
    • Accessibility: Ensure entrances and exits are accessible for all, including ramps and elevators as needed.
  6. Lobby and Reception Area:
    • Ticketing and Information Desks: Central area for purchasing tickets, obtaining information, and gathering before shows.
    • Displays and Exhibits: Interactive exhibits and displays related to astronomy and science to engage visitors while they wait.
  7. Lighting:
    • Adjustable Lighting: Capability to control lighting levels to facilitate different show requirements, including complete darkness for optimal viewing.
    • Safety Lighting: Emergency lighting and pathway lights for safe movement in low-light conditions.
  8. Climate Control:
    • HVAC Systems: Efficient heating, ventilation, and air conditioning to maintain a comfortable environment for visitors and protect sensitive equipment.
  9. Acoustic Design:
    • Soundproofing: Proper insulation and soundproofing to ensure external noise does not disrupt shows and internal sound is clear.
    • Acoustic Treatment: Materials and design features to enhance sound quality and reduce echoes within the dome.
  10. Educational and Interactive Spaces:
    • Classrooms and Labs: Spaces for educational programs, workshops, and hands-on activities related to astronomy.
    • Interactive Kiosks: Digital kiosks with interactive content to engage visitors in learning about astronomy and space science.
  11. Accessibility Features:
    • Elevators and Ramps: For easy access to different levels of the planetarium.
    • Signage and Information: Clear signage in multiple languages and formats (e.g., braille) to assist all visitors.
  12. Exterior Design:
    • Aesthetic Appeal: The exterior should be inviting and reflect the scientific and educational purpose of the planetarium.
    • Landscaping: Incorporate outdoor spaces, such as gardens or open-air exhibits, that complement the planetarium experience.
  13. Parking and Transportation:
    • Ample Parking: Provide sufficient parking spaces, including spots for buses and accessible parking.
    • Public Transit Access: Ensure the planetarium is accessible via public transportation for the convenience of all visitors.

These architectural features are essential to create a functional, welcoming, and educational environment in a planetarium for public use.

Michigan Technological University | Houghton County

 

 

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