Post on 18-Mar-2020
Renewable Electrical Power from
CompostingMr. Henry Hovakimian, Director of Operations
4/10/2019 1
Presented at:
Solid Waste Association of North America’s
48th Annual Western Regional Symposium and Trade Show
April 8 to 11, 2019
Tenaya Lodge, Yosemite, California
TRACK 5B
Wednesday, April 10th
8:00 am – 9:00 am
WASTE CONVERSION
Research Network
Cal Poly Pomona Univ.
Dr. Prof. Kevin Anderson P.E.
University of New Mexico
Dr. Peter Vorobieff
Dr. Nima Fathi
SolarWall
Mr. John Hollick
4/10/2019 2
Outline
Intro. to SUT+CWH+TSC Power Plant Renewable Energy Technology
SUT = Solar Updraft Tower
CWH = Compost Waste Heat
TSC = Transpired Solar Collector
Project Benefits
Numerical Simulations
Prototype Experimental Test Set Up
Summary / Q&A
References
4/10/2019 3
Compo Energy Renewable Electrical Power
from Composting
4/10/2019 4
Intro. SUT+CWH+TSC Power Plant
4/10/2019 5
US PATENT #7956487 Canadian PATENT #2720544
CF. http://www.compoenergyinc.com/
ROOF OF CWHGREENHOUSE
TSC WALL
FRESHAIR
HEATED AIR FROM TSC
GROUND FLOOR
COMPOST PILE
CHIMNEY WALL
SHROUDED TURBINE
HEATED AIR FROM CWH
Intro. SUT+CWH+TSC Power Plant
Staged Shrouded Turbine R&D
4/10/2019 6
https://www.windpowerengineering.com/
Turbine placement options:
a) Single vertical axis b) multiple vertical axis c) multiple horizontal axis
Intro. SUT+CWH+TSC Power Plant
Leverages tipping fees, recycling and compost revenue generation
4/10/2019 7
Waste-to-Energy Power Plant with no
Incinerators
PROVIDING CLEAN RENEWABLE ENERGY AND SOLVING WASTE DISPOSAL ISSUES FOR THIS AND FUTURE GENERATIONS
A systematic method for converting heat energy released by compostable matter into electricity, using a compost updraft tower. This compost updraft tower is comprised of
1) a collector region that contains compostable matter
2) one or more towers that rise through the collector region
3) one or more turbines
The air within the collector region is heated through the composting process and that heated air flows through the collector region toward the open first end of one or more of the towers, and from there to the open second end of the tower
This heated air flowing through the system drives turbines that generate electricity
4/10/2019 8
Waste-to-Energy Power Plant with no
Incinerators
In one prototype the roof of the collector region is transparent to allow solar
radiation to also penetrate the collector region from the outside and heat air
within
The end product is compost from household waste for agricultural use
Therefore, the volume of waste transported to the landfills is drastically
reduced
This is a SMART ALTERNATIVE FOR OUR CURRENT LANDFILL WASTE OPERATIONS
One plant can generate at least 14.5 MW/+ (3.6 MW per section) of clean
renewable energy, enough for 13,500 +/- homes
A smaller size plant 500' x 500' can accept 1,000 tons of waste 24/7, and a full-size
power plant 1000' x 1000' can take 4,000+ tons of household and green waste 24/7
4/10/2019 9
Waste-to-Energy Power Plant with no
Incinerators
There are four ways to generate revenue in this project:
1) Tipping fees in Los Angeles area are approximately $60/ton; a 1000-ton plant will generate $60,000 per day, and a full-size plant 4,000 tons at $240,000 per day
2) Sale of the electricity generated for 13,500 +/- homes
3) Revenue from recyclable materials
4) Sale of compost for agricultural use
4/10/2019 10
Prototype Experimental Test Set-Up
1/5th Scale Prototype constructed at Cal Poly Pomona Univ.
4/10/2019 11
HOLES USED TO MIMIC TSC EFFECT
Numerical Simulations
Carried out at
4/10/2019 12
CHIMNEY
CENTERLINE
HEAT FLUX DUE TO COMPOST
SUT CHIMNEY
SUT ROOF WITH TSC
COMPOSTING
Numerical Simulations
4/10/2019 13
Summary
SUT+CWH+TSC solves problem
of waste management without
using incineration
Technology can be scaled up /
down according to the
customer needs
Q&A
Thank You
4/10/2019 14
References
1. "Case Study of a Solar Tower/Compost Waste-to-Energy Test Facility,"
by Anderson K.R., Shafahi, M., Shihadeh, S., Perez, P., Kampen, B.,
McNamara, C., Baghaei Lakeh, R., Sharbat, A., and Palomo, M., Journal of
Solid Waste Technology & Management, Vol. 42, 698-708, 2016.
2. “Thermal-fluids Analysis of a Hybrid Solar/Compost Waste Heat Updraft
Tower,” by Kevin R. Anderson, Maryam Shafahi, and Chris McNamara**, Cal
Poly Pomona, Journal of Clean Energy Technologies, Vol. 4 No. 3 May 2016.
3. Analysis of SUT using Compost Waste Heat and TSC,” Kevin R. Anderson and
Christopher McNamara, California State Polytechnic University at Pomona,
Mechanical Engineering, proceedings of ASES SOLAR 2017 Conference, Denver
CO, Oct. 9-12, 2017.
4. University of New Mexico SUT+TSC report 2/15/19
4/10/2019 15