Tag: LEED

Eco-Ambassadors Tour the SEC

Recently, the Science and Engineering Complex (SEC), located on the Medford/Somerville campus at 200 College Avenue, received LEED Gold certification. LEED (Leadership in Energy and Environmental Design) is a voluntary green building rating system that recognizes high-performance, energy efficient and sustainable buildings.

On Wednesday afternoon, 11 Eco-Ambassadors went on a tour of the SEC to better understand what makes the building so energy efficient.

Elliott Miller and Michael Skeldon from Facilities Services along with Bruce Panilaitis, the Director of the Science and Engineering Complex, led the group through the architecturally stunning building to explain the inner workings of this state-of-the-art, one-of-a-kind building.

Repurposing Tufts’ History

The exterior of an older building accents the new modern building’s interior

In the initial planning stages, the SEC was set to be built next to the location of the older Robinson and Anderson Halls, with potential plans to demolish Robinson Hall. However, they later decided to preserve both of the older buildings and convert them into wings of the new SEC. Not only is this more sustainable, it also helps preserve the history of the University. What is left is a stunning juxtaposition of old and new with the exposed brick visible within the modern interior of the atrium of the building.

The SEC houses several departments including Biology, Civil and Environmental Engineering, and Mechanical Engineering, as well as the offices and labs of several other departments. The structure of the spaces provides ample opportunities for interdisciplinary collaboration.

Energy Efficiency

The SEC is designed for maximum energy efficiency. The building has tight doors and a white reflective roof to reduce the summer cooling load. While having an all-glass exterior may seem inefficient, the triple glazing on all SEC windows reduces heat loss in cooler months and helps keep the building cool in warmer months.

The volume of air that goes in and out of the building is tightly controlled. Conditioned air is recirculated from office and classroom areas and blended in with outside air for laboratory use. The building also uses low and medium temperature chilled water to provide year-round cooling. The chilled water has two systems and different supply temperatures (38°F and ~60°F) to optimize the efficiency of the CEP (Central Energy Plant) chillers and to provide efficient condensation free cooling without risking dripping from the chilled beam cooling.

Scheduling and occupancy sensors are built into each lab and office in the SEC and daylight dimming sensors automatically control the light levels in rooms to adjust for varying amounts of sunlight. There are also carbon dioxide air quality sensors in meeting rooms. When there are more people, more air is let into the room to maintain a consistent minimum air quality level and a comfortable temperature. If no one is detected in the room after a preset amount of time, the lighting is turned off and the heating or cooling set-points are significantly relaxed to minimize energy use until someone reoccupies the space.

Exposed piping on the ceiling of a lab in the SEC

Exposed piping on the ceiling of a lab in the SEC

A striking aspect of the building is the exposed ductwork and piping which actually has a very practical purpose — having all of the valves and airflow controls exposed allows technicians to easily see the control position indicators of the equipment and troubleshoot a malfunction, often without even having to get a ladder. This allows for quicker repairs which reduce the amount of time when energy can be wasted as the problem is being solved.

Sustainable Lab Design

A typical lab bench in the SEC, with components plugged into the ceiling which can be easily removed and replaced to suit the researchers' needs

A typical lab bench in the SEC

The SEC’s new LEED Gold certification is particularly notable because of how difficult it can be to achieve a sustainable design in a laboratory building. These types of buildings tend to be highly energy dependent and unsustainable due to necessary safety precautions and the complex needs of lab occupants. Air changes in lab spaces are particularly important as they make sure that the air stays clean of contaminants and at a moderated temperature.

One of the tour guides, elliott miller, points to the exposed piping in the ceiling to explain the air ventilation systems in a lab

Elliott explaining the air ventilation systems

 

The building’s lab spaces use a minimum amount of air changes to reduce the amount of heating or cooling necessary to maintain the laboratory environment. To help optimize the air change rates, an air quality system monitor made by Aircuity, a company headquartered in Newton MA, measures certain parameters like VOCs, dust, humidity, and CO2, and compares them to the outside air. The system samples the air every 15 minutes and if abnormalities are detected, the frequency of air changes (air from the laboratory gets sucked out and replaced by new air coming in from the outside) is increased until the contaminants in the air are back down to an acceptable level.

Normally,  a minimum of five air changes occur each hour during the day, and less at night when no one is in the building. Mike explained that this is much less than some other laboratories that are designed to constantly exhaust 10 to 12 air changes in an hour.

The labs also have high-efficiency low flow fume hoods that are able to sense how much air should be flowing based on whether the fume is open or shut and if there is a person present. When no one is present, less air is drawn through which helps to further conserve energy.

The labs also accommodate a wide range of research needs while respecting sustainability. “A key aspect of efficiency is adaptability,” Michael explained. In the SEC, each level has the same basic layout even though the building is used by many different departments.

In addition, the individual labs are designed to be easily modified. The furniture is not fixed so that it can be easily moved at any time and infrastructure aspects such as vacuums, chords, chemicals, and gas can be easily installed or removed from fixtures on the ceiling. This allows the needs of the researchers occupying the lab at any given time to be easily met without needing to significantly change the physical space.

Utilizing the SEC

The SEC is as functional and practical as it is energy-efficient and beautiful!

One of the biggest challenges of introducing a new, state-of-the-art building such as the SEC comes after the construction is completed. A building with many sustainable functions cannot live up to its full potential without the understanding and support of its occupants. For example, even though air is tightly controlled to ensure the highest possible energy efficiency, this is rendered useless if the occupants decide to leave the windows open in their office all day.

While there will be a slight learning curve to using the building, the SEC is sure to provide a comfortable and exciting learning and innovating space for students, faculty, and other researchers for years to come.

LEED Green Associate Training (Cambridge, MA)

LEED Green Associate (GA) Training

When: January 25th 2017 – 6:00PM to 10:00 PM

Where: MIT – Building 66 – Room 201 – https://goo.gl/maps/gxBqYNSrwHm

Registration: http://leadinggreen.com/mit

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When: January 24th 2017 – 6:00PM to 10:00 PM

Where: Northeastern – Egan – Room 306 – https://goo.gl/maps/cJ1zO

Registration: http://leadinggreen.com/boston

Interested in getting involved in the Green Building Industry? Opportunities are plentiful in the field of sustainable design and LEED is at its forefront.

 

LEED (Leadership in Energy and Environmental Design) is simply a green-rating point system for buildings. The more energy efficient and sustainable a building is, the more points it will earn. To date, this course and its materials have proven to be instrumental in helping over 5000 students pass their respective exam at a 100% pass rate. This course is offered at a quarter of the price and time as the competition and is geared at allowing students to graduate with letters after their name!

 

Just as Buildings can be LEED certified, people in the sustainable construction industry can become LEED Professionals. The LEED Green Associate (GA) credential is the only entry level sustainability designation and shows employers and clients that you have certified knowledge in the green building industry.  A new LEED rating system (v4) was introduced last month and this training course is one of the few that has been updated to teach the current rating system. This course meets the exam’s eligibility requirements and the USGBC charges a $100 (reduced for students) fee for the actual exam which can be taken at any time at your nearest Prometric center.

 

Cost: $300 ($200 for full time students)

To register for the class please visit: http://leadinggreen.com/mit  or http://leadinggreen.com/boston

You can register via PayPal or RSVP your attendance by registering at the bottom of the page

FOR MORE INFORMATION CLICK HERE!

Sustainability Coordinator, American University (Washington, D.C.)

This position coordinates completion of sustainability and green building related assessments and reports. The incumbent tracks, benchmarks, and analyzes a wide range of sustainability metrics related to sustainability in facilities and operations. This position coordinates the documentation of sustainability practices (including energy and water use, purchasing, transportation, and other metrics) using STARS (Sustainability Tracking, Assessment, and Rating System). The position also coordinates the completion of LEED submissions for existing buildings using LEED Volume. The Coordinator reviews and evaluates new programs or measures for cost savings, sustainability impact, and feasibility.

Learn more.

Campus Sustainability Council update: Energy/Emissions Working Group

Since the beginning of March, the three Working Groups of the Campus Sustainability Council have been meeting bi-weekly to discuss the current state of energy/emissions, water, and waste policies and practices at Tufts, and to create new policy measures in these areas.

The Energy/Emissions Working Group met for the first time on March 15th and reviewed its roles and responsibilities, which include reviewing current energy usage and emissions, existing initiatives and goals, as well as creating recommendations for goals and implementation plans to present to the Campus Sustainability Council.

The group reviewed Tufts’ institutional commitments to energy and emissions reduction including the 1990 Talloires Declaration and Tufts Environmental Policy, the 1999 Climate Change Commitment to follow the Kyoto Protocol and reduce carbon dioxide levels to 7% below 1990 levels by 2012, and the 2003 New England Governors/Eastern Canadian Premiers Climate Change Action Plan with the goal to be 10% below 1990 levels by 2020 and 75-85% below 2001 levels by 2050. The members also learned that many energy-saving initiatives at Tufts are already underway, including:

  • Occupancy sensors in most rooms on campus
  • Daylight sensing/dimming, lighting & controls
  • Ongoing technology updates include LED lighting
  • Equipment efficiency
  • State of the art boiler controls and boiler upgrades
  • Retro-commissioning of buildings
  • Heat-recovery programs
  • Energy Star vending machines & vending misers
  • Free CFL bulb exchange
  • IT upgrades (LCD screens, laptops)
  • Solar panels on Sophia Gordon Hall, Schmaltz House, Fairmount House
  • Management- Residence Hall winter break shut-down
  • Behavior modification
  • LEED Certification
  • Fuel Switching from oil to gas
  • Renewable energy such as solar and geothermal

The working group members discussed the differences between Tufts’ campuses energy use and emissions, life-cycle costing, ways to evaluate proposed solutions and appropriate metrics for evaluation. The group is in the final stages of assessing the current state of energy and emissions at Tufts and will soon move on to metrics and goal setting. The working group is co-chaired by Ann Rappaport, Lecturer at Urban and Environmental Policy and Planning in the Graduate School of Arts and Sciences, and Betsy Isenstein, Director of Facilities Technical Services.

As always, Tufts community members are welcome to add their own suggestions for the working group through the easy, on-line form available on the Office of Sustainability’s website.