From Ed van Dijk: December 2013
Building and running my first woodfired glass-furnace was out of curiosity.
Knowing that thousands of years glassmakers had been making the most beautiful glass(art)work even without the use of electricity it was hard to understand how they were running a studio in the ‘old days’.
My first exempt was a firebrick “Roman”style furnace, build during a glass event some years ago in the small town of Lier in Belgium.
Build it in about two days time with a little knowledge of old designs and after a workshops in The Netherlands with guys building masonry heaters. Masonry heaters were as close as I could get to a combination of glass-furnace building and wood firing.
After finishing building we started firing this first furnace to dry it. It took us about 30 hours of firing to get the temperature up till 1170 ºC. The 4 small pots of glass holding about 25 kg of glass were great to play with and open to anyone that wanted a try. We ran the furnace for about a week and did constant firing (24 hours a day) in shifts. Great fun that was, all those nights at the hot furnace, but lovely to get back to a normal rhythm of sleeping after the final party. Conclusion: ‘Its great to do but there is so much more to learn’ !
In the number of furnaces that followed I changed the interior design from “strictly’ Roman to Rocketstove based, till Rocketstove based with secondary air injection. The differences are enormous, but all of them run/ran totally without electricity.
The Jackson County Green Energy Park (JCGEP) utilizes clean, renewable energy resources to encourage economic development, provide environmental protection, and offer educational opportunities that together will help lead towards a more sustainable future for Western North Carolina. Located in Dillsboro, NC, JCGEP captures methane gas from the old town landfill, then uses the gas as fuel for a series of artisan studios, greenhouses and other ventures.
Seattle visiting artists Robert Burch and Taylor Ames enjoying low-cost fuel usage from methane trapped in the landfill needing to be burned off anyway– might as well make glass with that fuel!!
Looking forward to GAS conference in Chicago- March 2014!
The Ignite Studios, the host for demonstrations, is recognized for Sustainable Building Practices…
Rejuvenate existing urban industrial neighborhood
Re-purpose existing building through selective demolition
Minimize new structure by providing simple new industrial shed structure for event space
Recycle demolition rubble to create a new elevated sculpture garden
Plan adjacencies to promote the utilization of radiant heat from Ignite’s hot shop to help heat the event space
Orient event space garden glass wall to reduce solar heat gain
Install new glass garden wall, with a series of operable doors for natural ventilation of hot shop and event space
Reduce urban heat-island effect by replacing asphalt parking lot with a new garden
Provide infrastructure for future solar panel system
For more information:
Ignite Studios/ Andrew Metter, FAIA, Principal Design Architect, Epstein|Metter Studio
The SUNY College of Ceramics at Alfred initiated this project to address safety and energy conservation issues in the glass blowing area of Binns Merrill Hall. Heat recovery and the safety of occupants were at the core of the project. As the design progressed, additional deficiencies needed to be addressed.
Given the immense heat produced by the furnaces, thermal comfort was a challenge. The most innovative application of this project was the use of displacement ventilation typically used in industrial settings. A combination of diffusers installed in two locations provide a “cool” work zone around the artist, which improves ventilation efficiencies by distributing a greater concentration of fresh air within the occupied zone.
Custom designed stainless steel exhaust canopies located above each furnace vent keep flue gasses from entering the room and capture the maximum amount of heat. Industrial ventilation techniques and calculations were utilized to design each canopy and provide proper air flow to match the furnace being exhausted. Each canopy is movable through the use of high temperature flexible exhaust hoses typically utilized in the transit industry. The 1,200° F exhaust temperatures made material selection a key component to the design, efficiency and useful life of the HVAC system.
The primary HVAC system is comprised of two large industrial style exhaust fans located on the roof, auxiliary exhaust fan, heat recovery coil section, and make-up air unit. The hot exhaust air from the furnaces is used to temper the incoming outside air through the use of the hot recovery section and a variable speed “run around” style hydronic heat recovery loop. The design of the heat recovery is so efficient that the system is completely self-sustaining with an outdoor temperature as low as 10° F.
Safety of the occupants was critical. Safety interlocks and alarms include automatic furnace shut down in the event of exhaust system failure; gas detection system to notify occupants of an unsafe work environment and automatic activation of HVAC system to purge the space; heat detectors at the ceiling to alarm the owner of high temperatures prior to sprinkler system activation; and custom designed control panel with indicator lights identifying occupants of HVAC equipment status.
Sound transmission was a major concern. Prior to the upgrades the instructor would shut off the ventilation system to teach the class due to excessive noise, which presented a safety hazard. The design included various noise reducing techniques and exceeded the client’s expectations, improving the environment and elevating the ability of the instructor to teach.
Explorations in eco- efficient glass studio practices
Could making glass art cost you less?
(how to best use energy, time, money, materials?)
Join us at PRATT Fine Arts Center to learn tips for use of renewable energy, recuperation benefits, alternative fuels, and optimal energy efficiency in a glass hot shop.
-Chuck Lopez Pratt Shop tech that modified our local community hot shop to operate more efficiently. In Decemeber 2009 Pratt made some major eqipment changes in the Hot Shop that resulted in signaticant energy savings up to $1500 per month. As well as efficiently serving a greater part of the glass community with its open rental studios.
-Meet Recuperation Guru Hugh Jenkins, renowned Hawaiian glass art educator, artist and expert in glass studio efficiency. Here in Seattle building recuperation systems discussing the benefits of recuperation and innovative alternative fuel sources.
-Julie Conway, founder of BioGlass.org a discussion of how world-wide glass heritage and culture are threatened, and what innovative steps are being taken by creative individuals such as Christian Thornton in Mexico, the Durk Valkema in Nederlands, Recycled glass programs in Kenya and British Virgin Islands and more.
Saturday June 8, 2013 4:00-6:00 pm
Pratt Fine Arts Center
1902 Main Street
Seattle, WA 98144
For more information, please contact Chuck Lopez: email@example.com 206.328.2200 Julie Conway: firstname.lastname@example.org
Explorations in efficient glass studio operation
Could blowing glass cost you less?
Join Hugh Jenkins and Mary White at the Crucible in Oakland, CA for an evening Potluck and discussion of recuperation techniques and the use of solar panels that offset the costs of operations at the Crucible Fire Arts Center.
Learn tips for use of renewable energy, alternative fuels (reclaimed cooking oil) and energy efficiency in a glass hot shop.
Meet Hugh Jenkins, renowned Hawaiian glass art educator, artist and expert in glass studio efficiency.
Friday May 31, 2013
7:30-8:30 Hugh Jenkins presentation
8:30-9:00 Q&A Discussion
1260 7th Street
Oakland, CA 94607
For more information, please contact Mary 510 847-4916 or email@example.com
2 glass conferences this year cancelled due to unforeseen circumstances and basically a lack of finances. That is the crisis that many glass artists are facing and we at BioGlass are trying our darndest to help find some solutions that can bring relief to our expensive artmaking industry.
But alas, with the conferences cancelled, glass artists have decided to make smaller, more local gatherings. The 50 Years of Glass celebrated last November in Oakland, CA was an enormous success that produced several presentations by local artists and an art exhibition featuring regional talent. It was a great gathering of artists celebrating the 50 years of American Studio glassmaking and a strong showing of local support.
This year, GAS in Boston was cancelled and so was the GAAC in Calgary. A small, local group of artists are still forging ahead with a regional gathering called Glass Boston. http://www.societyofcrafts.org/learn/glassboston.asp
Although the GAS conference plans to regroup in Chicago 2014, with the return of the Green Panel, there are still some wonderful demonstrations and gatherings to attend in your local region. We are a big family of glass artists needing to stick together and share information. If you don’t find one close to you, host one yourself!
Coming up: Green Glass Discussions & Presentations May 31 at The Crucible in Oakland, CA and June 8 at Pratt Fine Arts Center in Seattle, WA Please email firstname.lastname@example.org for more info.
What a tragedy for our Glass Art Society to have to cancel the Boston Conference. Our thoughts go out to those who work so hard to provide us with one of the best conferences and creative gatherings for glass artists everywhere. It is a loss of opportunity for learning, connection and FUN for our glass community.
Of course, we at BioGlass are terribly sad that we are unable to keep up our small tradition of helping promote the Green Panel at the conference and to aid in the education of eco-efficent glassmaking.
“The Glass Art Society (GAS) has held a continuous succession of conferences since its inauguration in 1971. In 2012, we celebrated glass and its history in an extremely successful event in Toledo. Today, after careful consideration and with deep regret, the Board of the Glass Art Society has decided unanimously to cancel the 2013 conference in Boston.”
We will resurface in other ways this year.
Stay tuned to see other conferences and gathering for green glass makers all over the world.
2013 Green Panel for Glass Art Society
Ancient Techniques for efficiency using Modern Technology
Moderator: Julie Conway
Speakers: Hugh Jenkins, Durk Valkema, Pablo Soto
Discussing the use of technology and individual innovation to save energy in the glass shop.