Solar Heating and Cooling - Chromasun Inc.chromasun.com/images/content/presentations/Chromasun...
Transcript of Solar Heating and Cooling - Chromasun Inc.chromasun.com/images/content/presentations/Chromasun...
© 2011 Confidential and Proprietary
12/17/2011
Solar Heating and CoolingChromasun Rooftop Applications
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 2
Heating and Cooling
Space Cooling9%
Space Heating30%
Water Heating8%
Lighting14%
Ventilation7%
Refrigeration6%
Electronics4%
Computers3%
Cooking3%
Other16%
39%
DOE US 2010 Commercial Energy End-Use Splits, by Fuel Type
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 3
Heating and Cooling (at the same time)
Space Cooling9%
Space Heating30%
Water Heating8%
Lighting14%
Ventilation7%
Refrigeration6%
Electronics4%
Computers3%
Cooking3%
Other16%
DOE US 2010 Commercial Energy End-Use Splits, by Fuel Type
Electricity
Gas
Gas/Elec
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 4
Heating and Cooling $$
Space Cooling, 16.9
Space Heating, 22.9
Water Heating, 7.1
Lighting, 29.1 Ventilation, 14.6
Refrigeration, 11.2
Electronics, 7.5
Computers, 6.0
Cooking, 2.3
Other, 25.0 $46.9 Billion
US 2010 Buildings Energy End-Use Expenditure Splits, by Fuel Type ($2009 Billion)
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 5
Thermal solar energy yields per square foot of roof.
0
50
100
150
200
250
300
350
400
Flat PlateDHW
Flat PlateCHW
PhotovoltaicCHW
MCT CHW MCT DHW +CHW
BTU
/squ
are
feet
roof
are
a
Solar technology type
CHWDHW
1000W/global, 850W/DNI solar resource
Chilled WaterDomestic Hot Water
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 6
Heat can be reused as hot water or hydronic heat
Heat Pump 101
Heat pumps ‘remove’ heat and provide cooling
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 7
Heat Pump 101
A thermal heat pump drives the system
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 8
Heat Pump 101
Gas can drive the heat pump..
..or solar energy or both!
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 9
MCT Product Background = Fresnel CSP
• Chromasun’s team background is building large Fresnel CSP plants for direct steam generation.
• These systems are ‘fixed’ to the ground with pressurized receivers that do not move.
• Arguably the lowest cost solution.
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 10
Bringing advanced solar thermal to the rooftop?
• CSP wastes 2/3 of energy as heat
• Most process heat and cooling loads are in urban areas.
• Could Fresnel CSP be made to work on rooftops?.......
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 11
How MCT works
Receiver Pipe(SS 304 A213 Tube)
Parallel Mirrors
Section View
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 12
Chromasun MCT Panel
• Flat panel format
• High temps < 200ºC
• Turns on and OFF
• No external moving parts
• Easy installation and O&M
• Low wind and roof loadings
• SRCC Certified
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 13
Current MCT v flat panel (SRCC Data)
Flat Plate Collector
EvacuatedTube
Collector
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 14
MCT = Simple and Efficient
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 15
Heat pumps for hot water (and some air conditioning)
MCT Panels
Cool Building
1.35 BTU@ 7ºC /44ºF
2.35 BTU@ 30ºC/85ºF
1 BTU @ 175ºC / 350ºF Solar and/or Natural Gas
CHW
DE Multi-Fire Absorption Chiller Heat Rejection/Pool Heating
CW
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 16
Heat pumps for hot water (and some air conditioning)
MCT Panels
NH3 Multi-Fire Absorption ChillerCool Building HydronicHeating Water
0.6 BTU@ 10ºC /50ºF
1.6 BTU@ 74ºC/165ºF
1 BTU @ 150ºC / 300ºF Solar and/or Natural Gas
CHW DHW/HHW
Hot Water
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 17
Thermal solar energy yields per square foot of roof.
0
50
100
150
200
250
300
350
400
Flat PlateDHW
Flat PlateCHW
PhotovoltaicCHW
MCT CHW MCT DHW +CHW
BTU
/squ
are
feet
roof
are
a
Solar technology type
CHWDHW
1000W/global, 850W/DNI solar resource
Best building energy outcome!
Chilled WaterDomestic Hot Water
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 18
So what’s in the Chromasun toolbox?
Efficient Chromasun MCT-HTthe only flat panel suitable for double effect heat pumps
HVAC and Heat Pump makersa reliable gas/solar alternative to electric.
Experienced teamengineering and solar experience
Solar Installers
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 19
Process Heat Showcase
Santa Clara University Showcase• San Jose, California
• 100% peak boiler offset for
cafeteria operations
• 1/3 the gas consumption for hot
water and HHW
• Highest rooftop energy density
of any renewable
• Net-zero contribution and
blackout capability.
• Proof of operation
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 20
Heat Pump Application
• 25 RT gas/solar heat pump solution
• Halves the total gas consumption
• Annual Electricity offset : 164 MWh* ($19,210)
• Annual Gas Offset: 59,258 therms** ($50,370)
• 4 year payback
Las Vegas
* PV = 59 MWh** PV = NIL
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 21
Benefits for customers
Maui, Hawaii
• 50 RT gas/solar heat pump solution
• Half the gas consumption
• Annual Electricity offset : 270 MWh* ($98,546)
• Propane Offset: 83,427** therms ($269,673)
• 1.23 year payback * PV = 126 MWh** PV = NIL
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 22
Process Heat Proposal
San Diego, CA
• Boiler Feedwater Pre-Heat
• 200 MCT Panels
• Annual Gas Offset: 25,434 therms
• PPA Offtake
• 10% reduction in gas price.
• 4.2 year payback
Advanced Solar Thermal Seminar – ERC 1 December 2011 © 2011 Confidential and ProprietaryPAGE 23
Summary
MCT Advanced Solar Thermal• MCT = Highest temp. certified SRCC panel• Most roof efficient solution• Simple installation and O&M• High temps = new engineering possibilities
Benefits• Boiler Feedwater pre-heat• Heat Pump Applications (CHW & DHW/HHW)• Up to 370% more energy from the rooftop• Projects payback from 1.2 to 5 years.
© 2011 Confidential and Proprietary
12/17/2011
THANK YOU
PETER LE LIÈVRE +1 650 521 6872 [email protected]