M E CHANICAL | E L E CTRICAL | P L UMBING | T ECHNOLOGY | L I GHT ING
MESA Career Day at PAE
Welcome to PAE! We’re so glad you’re here to learn with us today.
OUR VISION
We love this planet and want to preserve it for generations to come.
OUR VISION
We think the built environment can be part of the solution for a prosperous future through smart planning, great design, and a change in cultural priorities.
Our Vision We love this planet and want to preserve it for generations to come. We think the built environment can be part of the solution for a prosperous future through smart planning, great design, and a change in cultural priorities.
OR
WHAT DO WE DO?
We are in business to help solve the planet’s energy and water challenges. We work with our clients to design the Nation’s highest performing building environments.
Why are buildings important? The built environment (where we live, learn, and work) accounts for nearly half of the energy consumption in the United States. Reducing the impact of the built environment is one major way to work towards a sustainable future. Source: Š2013 2030, Inc. / Architecture 2030. All Rights Reserved. Data Source: US Energy Information Administration (2012)
What makes us different? We cultivate a community of thought leaders in sustainable design We focus on expertly balancing a triple bottom line: People, Planet, Profit We encourage risk taking and thinking outside the box to find innovative solutions.
Career Paths at PAE ENGINEERS + DESIGNERS Mechanical | Electrical Fire Protection | Plumbing
Technology | Lighting
So, what exactly does an engineer or designer do at PAE?
Research + analyze problems
Communicate with many project teams
Design systems (creatively!)
Ensure public safety
Meet client expectations
Learn from our failures + successes
Use data to continue improving
Engineering + Design Process Engineers and designers work through a process similar to the “scientific method.� Design process: 1. Research 2. Identify problems 3. Design a new solution 4. Reflect, critique, test 5. Repeat
Have you ever wondered…
– How is it comfortable inside, when it is very hot outside? – Where does the waste go when I use the toilet? – How does water get to me at this sink? – What happens if there is a fire in a 10-story building? – How does electricity get from the power plant to this receptacle? – Who thought to put speakers in this room? – What else?
That’s where built environment professionals come in! Built environment professionals include architects, contractors, engineers, and consultants. There are many different types of engineers.
Built Environment Project Teams ‒ Owner decides s/he needs a new project ‒ Project concept is created by an architect ‒ Architect chooses engineers to design the systems within the project ‒ Engineers develop a design ‒ Contractor facilitates construction of project, working with architect and engineers to ensure intended design is made into reality
Today, you’ll learn about…
Energy + Energy Flows
Electricity + Renewables
Heating, Ventilating + Air Conditioning (HVAC)
Water Cycle + A New Kind of Recycling
Conservation, Sustainability + Corporate Responsibility
Let’s talk about flux, baby.
Energy Basics What are the different types of energy? ‒ Mechanical = Movement! ‒ Electrical = Electrons! ‒ Electromagnetic = Light! ‒ Thermal = Heat! ‒ Sound = Sound Waves! ‒ Chemical = Food Calories! ‒ Potential = Gravity!
Energy Basics An easy way to remember the basics is the acronym:
M E
Mechanical
Electrical
Energy of moving parts
Shocks, lightning, and electricity
L T Lights
Travels in waves extremely fast
Thermal
“Therm� means hot. The heat that an item or body gives off.
S
Sound Like Light, also travels in waves, but slower.
Shall we do the electric slide?
Energy Flows Conventional sources of energy include:
Sun
Fuel
Wind + Water
Geothermal
(light)
(thermal)
(kinetic)
(thermal)
It takes a lot of engineering and design to harness natural sources of energy and turn them into electricity, which can be distributed via power lines to end-users (like you & me!)
- Power plants use energy sources like heat and motion to generate electricity
- Once generated, electricity travels to physical networks called grids that temporarily store electricity before distributing to buildings and homes
Energy Flows
Solar arrays, which harness the sun’s solar energy to generate electricity, are sustainable alternatives to power plants because they can be placed nearly anywhere– on top of roofs or shading crops on farms, and they are nearly carbon-free.
Solar panel cells generate electricity by absorbing sunlight and using that light energy to create an electrical current. There are many photovoltaic cells within a single solar panel, and the current created by all of the cells together adds up to enough electricity to power homes, buildings, cars, and more.
Solar panels in an array are also called photovoltaics or PV
HVAC, for short
Comfort WHAT INFLUENCES INDOOR COMFORT? -
Temperature of air
-
Humidity (moisture)
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Clothing level (puffy jacket vs. t-shirt)
-
Air speed (drafty-ness)
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Temperature of surroundings
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Air Quality (ventilation = outside air)
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Activity level (metabolic rate)
HOW CAN WE CONTROL THERMAL COMFORT? -
Heat air and distribute it
-
Heat water and distribute it
-
Heat a different substance?
Comfort When it’s hot or cold outside, what keeps it comfortable inside?
sunlight
Comfort
insulation
When it’s cold outside, what lights
keeps it warm inside?
equipment
people ground
Hand Analogy Interior of your house (Air + people)
The “envelope” of your house
The Outdoors (in winter)
An exciting new way to recycle
Where Does Our Water Come From? -
Water in Portland, Oregon, comes from rivers and reservoirs
-
It is cleaned at a treatment plant
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It is distributed through pipes underground to homes and buildings
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Once it reaches your home, it goes through a water heater and then to your faucet
WHERE DOES OUR WASTE GO? -
Waste from sinks, showers, toilets and more enter underground pipes
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These pipes transport “waste� to wastewater treatment plants
-
Once treated, the water returns to the environment (but not as clean as it was originally)
Traditional Water Cycle Not really a cycle
Sustainable Water Cycle Closes the loop!
Understanding how computers help power everything we do.
Computers, what do they do? - With the use of programs like AutoCAD and Revit, we design what systems will look like in a building before it’s built - These programs allow us to model, design and markup existing drawings - To power these programs, you need a really strong computer. There’s a team of people in IT whose job is to make sure all the computers here are happy and healthy
Understanding how and why our buildings use energy.
Energy Use Intensity EUI, for short
+
-
‒ A building’s annual energy use per unit area ‒ Typically measured in thousands of BTU per square foot per year (kBtu/ft2/yr) or kWh/m2/yr ‒ EUI typically refers to “site” energy use (what the building consumes)
Space Heating & Cooling
Pumps & Fans
Lighting
Hot Water
Other Loads
Energy Modeling - Uses the design of the building and the environment it resides in to simulate how energy is used in the building throughout a “typical� year - This allows us to see what the energy hogs in the building are, so that we can target them to reduce energy use - An energy model can help projects reach ambitious sustainability goals by showing owners that many energy saving strategies can be costeffective over time Sustainable approaches used for the PAE Portland Living Building
Six Step Approach to Design
1.
Set Aggressive Goals
2.
Analyze the Climate
Sustainable Building Design
3.
Reduce Loads
4.
Choose Efficient Systems
5.
Opt for Renewables
6.
Verify Performance
- Aim for goals like Net Zero Energy - Orient the building to get the most out of the sun - Insulate the building well to “weather-proof” it - Make sure all of the technology is very energy efficient (computers, TVs, lights) - Design systems to heat, cool, and ventilate (bring outside air in) that are very energy efficient - Use renewable energy to power the building - Test the building to ensure it’s operating as expected
PRESENTED BY:
Kyle Garske Ben Burnett
Creating a better environment
Jacob Page Abbie Bullen Maya Drake Sara Duffy Seth Francis Autumn Tillman Ruwan Jayaweera
503–226–2921 522 SW 5th Ave, Suite 1500 Portland, OR 97204