natural gas-engine driven heat pump water heaters
TRANSCRIPT
Natural Gas-Engine DrivenHeat Pump Water Heaters
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HEWH-500-AS HEWH-500-WS
Brought to you by: The leader in CHP for over 30 years!
Ilios High Efficiency Water Heater: More than twice the efficiency of a conventional boiler
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Why is a boiler like an iceberg?
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Water Heating Costs
First Costs
Fuel
$
$$$
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Fuel Costs
$
$
$
Ilios Product Line
� HEWH-500-AS “Air-Source”
� 300-600 MBH Heat Output
� Efficiencies 1.2-2.2 (120-220%)
� 4’ X 7’ X 6’ Box
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� Typically Installed Outdoors
� HEWH-500-WS “Water-Source”
� 300-600 MBH Heat Output
� Efficiencies 2.0-3.0+ (200-300%)
� 3’ X 5’ X 6’ Box
� Typically Installed Indoors
HEWH-500-AS Product Concept
Heat Out
A
A2
B
E
A1
Condenser
Compressor
Natural
Gas
Engine
Waste
Heat
78 °F Ambient 120 °F Hot WaterYou only pay for
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C
Air-Cooled Evaporator
Heat From
Outdoor Air
Refrigeration CycleD
5 kW
Generator
for
Parasitics
120 °F Hot Water
This energy is free and renewable!
You only pay for gas input energy…
Product Specification- HEWH-500-AS
� 300,000-600,000 Btu/hr Heat Output
� Engine (<50 HP)
� 2.5 L FORD 4-Cylinder
� Natural Gas or Propane Fuel
� Ultra Low Emissions
� Small 5 kW generator for electrical parasitic load
� Electrical Requirement 115/60/15A similar to household appliance
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� Electrical Requirement 115/60/15A similar to household appliance
� Control power & battery charging
� Cogenerates parasitic load for pump and fans
� NO COSTLY 3-PHASE POWER SERVICE NEEDED
� Next-generation control system
� Internet-Based
� Touch-screen display
� Advanced communications (CAN)
� Efficient, low-pressure, HFC-134a refrigerant
Coefficient of Performance
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Heat Output
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How Do We Stack Up?
Ilios HEWH-500AS COP = 2.0 (Source Efficiency)
= 5.5 (Site Efficiency)
Commercial Electric Heat Pump Water Heater
10Conditions: Producing 120°F Hot Water @ 78°F Ambient
Commercial Electric Heat Pump Water HeaterCOP = 1.2 (Source Efficiency)
= 4.0 (Site Efficiency)
BoilerCOP = 0.85 (85%) (Source Efficiency)
A BTU of Electricity is approximately 3X the cost of a BTU of Gas!
Source Efficiency Comparison
η=33%
100 Units of Energy
Overall Efficiency
200Units of
Heat200%
Natural Gas Heat Pump Water Heater
55 50
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η=33%
Power Plant
6% Loss
200Units of
Heat
200Units of
Heat
166 Units of Energy 120%
235 Units of Energy 85%Gas Boiler
Electric Heat Pump Water Heater
Conditions: Producing 120°F Hot Water @ 78°F Ambient
55 50
Operating Cost Comparison
Example: Hotel/Condo/Hospital in Boston
Average thermal load per month = 4000 therms
400 MMbtu or 117,200 kWh monthly
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or
4800 MMBtu or 1,406,400 kWh annually
Virginia Assumptions: Natural Gas = $0.90/thermElectricity = $0.12/kWh (Blended Rate)
Operating Cost Comparison
COP = 2.0
4800 MMBtu
4800 MMBtu
COP = 4.0 (Site Efficiency)
$27,600*(2400 MMBtu)
$42,192
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4800 MMBtu
4800 MMBtu
COP = 0.85
$42,192(351,600 kWh)
$50,823(5647 MMBtu)
*Includes full annual maintenance contract
Fuel In(Natural Gas or Propane)
252,527 Btu/hr
Example of Ilios HEWH-500-WS producing hot and chilled water simultaneously.
HEWH-500-WS Product Concept
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252,527 Btu/hr
Chilled Water Hot Water
24 Tons(287,638 Btu/hr)
Coefficient of Performance (COP) =252,527 Btu/hr
287,638 + 476,289 Btu/hr=
Fuel In
Total Energy Out
=3.0
Conditions:
Hot Water Out =120°F
Source Water = 47/54°F476,289 Btu/hr
1. Chilled Water Loop� Free chilled water (15-25 tons) while producing hot water� Chilled water value dependent on:
� Existing electric chiller efficiency� Electric Rate� Demand Charges
� Any large building with a chiller and boiler loop2. Condenser Water Loop
Available Sources
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2. Condenser Water Loop� 80-95°F Source Temp = Very High Heating Efficiencies� Only works with water-cooled chilling plants
3. Low-Grade Waste Heat� Manufacturing & Food/Beverage Production Plants
4. Groundwater/Geothermal� Not a common application but is possible
Efficiencies (COP) from:� 1.5-2.5 Heating� Up to 3.1 w/ cooling effect
Product Specification- HEWH-500-WS
� 300,000-600,000 Btu/hr Heat Output
� Engine (<50 HP)
� 2.5 L FORD 4-Cylinder
� Natural Gas or Propane Fuel
Ultra™ Low Emissions
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� Ultra™ Low Emissions
� Next-generation control system
� Internet-Based
� Touch-screen display
� Advanced communications (CAN)
� Efficient, low-pressure, HFC-134a refrigerant
20,000
25,000
30,000
35,000
40,000
Do
lla
rs ($
)
Annual Operating Cost Comparison (NYC)
Assumptions:
1. 4000 operating hours/year
2. 22 tons of chilling (47°F/54°F)
3. 527,500 Btu/hr of hot water (120°F)
4. Electric Rate $0.12/kWh, $20/kW Demand Charge
5. $1.00/Therm Natural Gas
6. Electric Heat Pump COP = 6.0, Boiler Efficiency = 75%,
Electric Chiller Efficiency (0.6 kW/ton)
Maintenance Cost
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0
5,000
10,000
15,000
20,000
Do
lla
rs ($
)
Electric
Water-Source
Heat Pump
Boiler &
Electric Chiller
Ilios
Gas-Engine Driven
Water-Source
Heat Pump
Maintenance Cost
Near Zero Criteria Pollutants!� Cleanest emissions of any fossil fuel based water
heater on the market
� Cleaner emissions than almost all central power plants
Ilios offer’s NO /CO
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Ilios
NOx/CO emissions
comparable to Fuel Cells
Ilios Ultra
Utility Incentives
� The Ilios machine falls either under existing incentive programs with several utilities or under custom programs
� Many utilities will pay $1.00-$2.50/therm saved in the first year. This could be anywhere from $15,000-
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first year. This could be anywhere from $15,000-$50,000 depending on the installation.
� Incentives currently available through, National Grid, NStar, SoCalGas, and others.
� Helps Utilities meet their therm savings goals
� Typical installations save 15,000-30,000 therms/year
Federal Incentives
� Ilios heat pump qualifies for the 10% Investment Tax Credit as it is considered mechanical CHP. This is available until December 21, 2016.
� Per section 48(a)(3)(A)(v) of the IRC the CHP Tax Credit is defined as:
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Credit is defined as:“A property compromising of a system which uses the same
energy source for simultaneous or sequential generation of electrical power, mechanical shaft power, or both, in combination with the generation of steam or other forms of useful thermal energy (including heating and cooling applications”
� 500,000 Btu/hr Output (nominal)
� Hot Water delivery temperature 100°F-165°F
� Highly Efficient Heat Pump cuts heating costs and carbon footprint in half
� Ultra Low emissions with near zero criteria
Product Features and Benefits
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� Ultra Low emissions with near zero criteria pollutants
� Simple installation to existing hot water system
� Minimal Electrical Requirements-120V/60Hz/10A
� Modular & Scalable
Safety Certifications
� ETL Approved to the following standards:
� UL 1995-Safety Standard for Heating and Cooling Equipment
� ANSI Z21.40.2- Gas-Fired, Work Activated Air-Conditioning and Heat Pump Appliances (Internal Combustion)
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(Internal Combustion)
� CE Marked for Europe
� Indoor and Outdoor Installation Approved
What about the service??
� Annual preventive maintenance-just like a boiler
� Up to 8,000 hour oil change intervals!
� Tecogen Full Factory Service available at a rate of $1.00/run hour
� All economic analysis presented includes service fee
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� All economic analysis presented includes service fee
� Tecogen currently has over 1500 machines in the field running under factory service contracts
� Everything is covered “bumper-to-bumper”
� Essentially an unlimited parts & labor warranty
� The first Tecogen cogeneration module has been running for over 31 years-serviced by Tecogen!
HEWH-500-AS
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Screen shot of unit running at full load producing 130°F hot
water at 90°F ambient in Boston on 7/19/13 in our factory
test cell. As you can see the unit is putting out 650,000
Btu/hr of heat with a gas input of only 289,577 Btu/hr. This
provides a COP = 650,000/289,577 = 2.25
This is 3X the efficiency of typical gas boiler!!
HEWH-500-WS
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Screen shot of unit running at full load producing 122°F hot
water using a 55°F chilled water return as the source
temperature. As you can see the unit is putting out 476,289
Btu/hr of heat with a gas input of only 252,527 Btu/hr. This
provides a COP = (476,289+287,638)/252,527 = 3.0
This is 4X the efficiency of typical gas boiler!!
Applications� Domestic Hot Water� Pool heating� Laundry/Food Prep� Process Heating
� Food/Beverage� Manufacturing
� Desiccant Regeneration� Summer Reheat (Humidity Control)� Space Cooling (chilled water)
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� Space Cooling (chilled water)� Process Cooling (chilled water)
� Hotels� Condos� Correctional Facilities� Nursing Homes� Hospitals� Spa/Health Clubs� Universities� Manufacturing Facilities
Building Types
Sample Installations
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Questions?
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Ilios Dynamics- A Wholly Owned Subsidiary of Tecogen Inc.
Quality Crafted in the USA
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45 First Avenue
Waltham, MA 02451
United States
Product Manager: Stephen Lafaille