Mechanical Technologies and How They Improve Energy Efficiency, Health, and Comfort Geoffrey Eddy, PE, LEED AP Mechanical Engineer

Transcription

1 Mechanical Technologies and How They Improve Energy Efficiency, Health, and Comfort Geoffrey Eddy, PE, LEED AP Mechanical Engineer

2 Who I Am Registered Professional Engineer LEED Accredited Professional B.S. in Mechanical Engineering from Virginia Polytechnic Institute and Statue University Lover of the natural and built environment A local mmm a tall mechanical engineer?

3 Who we are A firm predicated on values

4 Comfort, Conservation, and Consequence Mechanical Technologies and how engineers created issues

5 Finding Balance Comfort Efficiency Health & Wellness costs not included

6 Now: Mechanical Systems 1) Comfort Distribution 2) Air Handling 3) Ventilation 4) Chiller 5) Heating 6) Energy Management 7) Heat Rejection Why can t engineers find more elegant sketches

7 Comfort Distribution

8 Now: Forced Air-Systems Push air to remove - Energy - Moisture - Particulates Fans at a central air-handler - Large and efficient Small fans at terminal units - Small and inefficient When are you going to answer why I m wearing jacket indoors when it s a 100 o F Outside?

9 New: EC Motors Runs Fans, Pumps, Compressors Electronically Commutated Motors (EC Motors) - Now: Increased Fan Efficiency (Small Motors) - New: Variable Speed Programming - Next: No More VFDs an engineer using a graph shocker

10 New: Chilled Beams Fans for outdoor air / humidity Pumps for sensible cooling Split the systems - Condition fresh air for particulate and moisture removal - Chilled water removing the energy This does not help my elegant dry wall ceiling look

11 New: Chilled Beams I can work with that

12 New: Radiant Comfort Transfer energy via radiation Thermal mass of different temperature change our perception of the space There is less a focus on airflow and more line of sight Hold on, isn t radiation bad for you?

13 Nothing like a good rendering New: Radiant Comfort

14 Next: Phase Change Materials So we should all live and work in igloos?

15 Indoor Air Quality

16 Indoor Air Quality Nothing like mold spores magnified a 1,000x to instill fear.

17 Now: IAQ Management Oh! A blank screen This is ourselves under pressure under pressure pressure

18 New: Ionization Love the 80 s nostalgia next can I see a Rubix Cude

19 Now: Gas-Phase Filtration Also a novel ice cream treat

20 New: Dilution w/ Targeted Filtration System works in parallel A solvent scrubber used to reduce outdoor air Regenerative exhaust system Seriously do they teach engineers only in arrows and commas?

21 Next: Phytoremediation Filtration Who knew ferns could be so effective Zack Galifianakis that's who!

22 Next: Dilution Modulation Modulate ventilation airflow based on occupancy CO2 used as a tracer gas Needs to be calibrated Delayed Costly How long do you think he spent playing with power point animation?

23 Cooling Technology

24 Now: Vapor Compression Cooling System Nothing like the image of a chiller to make someone go... Meh.

25 New: Desiccant Based Cooling System Unnecessarily complexity. Keeping engineers employed for sense the Renaissance

26 Next: Membrane Based Cooling System Still waiting on my answer regarding the jacket question

27 Next: Thermoelectric Heat Pumps Thermoelectric Heat Pump (water heaters) - Goal to create a unit with a COP of 6.0 at commercialization - Zero direct global warming heat pump - Silent energy transfer Is it weird I m more excited about a silent A/C unit

28 Recovery Waste not Want not

29 Now: Energy Recovery Ventilation Hey engineer! Seriously, jacket question. Answer it!

30 Now: Energy Recovery Storage This would have been a better time to use that ice picture from earlier

31 New: Heat Recovery - Sewage You better know what you are doing.

32 Next: Solar Recovery and can be used to entertain toddlers for hours on end.

33 Answer to the question: What mechanical technology will be used such that I don t have to wear a jacket when it s a 100 O F outside? FINALLY!

34 Next: Shorts and Fans Wait engineers wearing shorts? I will keep my jacket thank you

35 Engineering problems are under-defined, there are many solutions, good, bad and indifferent. The art is to arrive at a good solution. This is a creative activity, involving imagination, intuition and deliberate choice. - Sir Ove Arup Ove keeping it classy