geothermal heat pumps - clean energy resource teams · 2020-01-07 · geothermal heat pumps...
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![Page 1: Geothermal Heat Pumps - Clean Energy Resource Teams · 2020-01-07 · Geothermal Heat Pumps Geothermal 101 Understanding the Mystery. ECONAR Energy Systems 2 Geothermal Topics](https://reader035.vdocuments.net/reader035/viewer/2022062603/5f0805f97e708231d41ff1f3/html5/thumbnails/1.jpg)
ECONAR Energy Systems1
Geothermal Heat PumpsGeothermal Heat Pumps
Geothermal 101
Understanding the Mystery
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ECONAR Energy Systems2
Geothermal TopicsGeothermal Topics
Geothermal Concepts
System Components
Moving Heat with Geothermal
Residential Case Study
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ECONAR Energy Systems3
The Basic Concept The Basic Concept
Geothermal Moves Heat
Naturally
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ECONAR Energy Systems4
Geothermal ConceptsGeothermal Concepts
Heat moves:From Warm
To Cool
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ECONAR Energy Systems5
Geothermal ConceptsGeothermal Concepts
Geothermal uses the Earth’s natural heat as a renewable reliable energy source
It uses refrigeration technology
There is one system for heating and cooling
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ECONAR Energy Systems6
Geothermal ConceptsGeothermal Concepts
Earth’s surface temperature @ 8 feetremains constant at about 50°
Geothermal moves heat naturally
Fossil fuel systems create heat
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ECONAR Energy Systems7
Your Solar CollectorYour Solar Collector
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ECONAR Energy Systems8
Geothermal Concepts Geothermal Concepts
Purpose of the Heat Pump:
• To provide a temperature difference
• The temperature difference moves Btu’s
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ECONAR Energy Systems9
Geothermal ConceptGeothermal Concept
Winter - Heating:Geothermal moves heat out of the Earth
Summer - CoolingGeothermal moves heat into the Earth
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ECONAR Energy Systems10
Three Basic Components Three Basic Components
1) The Earth
2) Geothermal Heat Pump
3) HVAC Distribution Systems
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ECONAR Energy Systems11
Moving Heat - The Geothermal Concept
Key Components
Air Distribution System Geothermal Loop Field
Geothermal Heat Pump
Removing Heat from the Earth
Warm Air Intensify
Heat
Water to RefrigerantHeat Exchanger
Refrigerant to Air Heat Exchanger
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ECONAR Energy Systems12
The Earth The Earth
The 1The 1stst ComponentComponent
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ECONAR Energy Systems13
Your Solar CollectorYour Solar Collector
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ECONAR Energy Systems14
The EarthThe Earth
Excellent solar collector
Natural renewal heat source
Easy to use as heat exchanger
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ECONAR Energy Systems15
Earth Heat ExchangersEarth Heat Exchangers Two types:Two types:
Earth Loop / Pond Loop (closed)
Open Loop (well water)
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ECONAR Energy Systems16
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ECONAR Energy Systems17
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ECONAR Energy Systems18
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ECONAR Energy Systems19
Earth Heat Exchanger:Earth Heat Exchanger: Horizontal Closed Loop FieldHorizontal Closed Loop Field
Typical 6-Ton Horizontal System
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ECONAR Energy Systems20
Vertical Closed LoopVertical Closed Loop
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ECONAR Energy Systems21
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ECONAR Energy Systems22
Types of Heat PumpsTypes of Heat Pumps
Forced Air Heating & Cooling
Hydronic
Combination Forced Air & Hydronic
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ECONAR Energy Systems23
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ECONAR Energy Systems24
Inside the Heat PumpInside the Heat Pump
Compressor
Refrigerant
Water Coil
Expansion Valve
Air Coil
Electronic Sensors & Controls
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ECONAR Energy Systems25
Moving Heat NaturallyMoving Heat Naturally50° Ground
warms 32° Waterwarms 25° Refrigerant
Refrigerant enters @ 25°Refrigerant leaves @ 160°
160° Refrigerantwarms 70° Return Air
to 100° Supply Air
Compressor
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ECONAR Energy Systems26
Moving Heat - The Geothermal Concept
Key Components
Air Distribution System Geothermal Loop Field
Geothermal Heat Pump
Removing Heat from the Earth
Warm Air Intensify
Heat
Water to RefrigerantHeat Exchanger
Refrigerant to Air Heat Exchanger
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ECONAR Energy Systems27
A Review:A Review: The 3 Geothermal Components The 3 Geothermal Components
Earth Heat Exchanger
Geothermal Heat Pump
HVAC Distribution System
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ECONAR Energy Systems28
Geothermal AdvantagesGeothermal Advantages
Economical: 50 % savings vs. Natural Gas 75 % savings vs. Propane
Renewable Earth’s Surface – Solar Heated
Comfortable: Not a Drying Heat & Better A/C
Single Unit: Heat & Cooling
No Fossil Fuel: No Combustion, Safe
Low Maint. Located Inside, uses Ref. System
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ECONAR Energy Systems29
Geo 101 SummaryGeo 101 Summary
Moving the Earth’s renewable heat
Heat will always move from Warm to Cool
Geothermal Heat Pumps:- create the needed temperature difference to move Btu’s
Single system for heating & cooling
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ECONAR Energy Systems30
Your Solar CollectorYour Solar Collector
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ECONAR Energy Systems31
Case Study Case Study -- ResidentialResidential
Typical Minnesota Home
3,000 SF
Annual Heating @ 100 MBTU
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ECONAR Energy Systems32
Residential Heating CostsResidential Heating CostsType of System CostGeothermal $ 651 ( using $.080 per Kwh)
85% Nat. Gas $ 1,588 (using $1.35 / therm)
85% Propane $ 3,343 (using $ 2.60 / gal.)
Electric $ 2,345 ( using $ .080 per Kwh)
Annual Heating Usage @ 100 Mbtu
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ECONAR Energy Systems33
Case Study Case Study –– Residential Clg.Residential Clg.
Annual Cooling Cost:
Traditional A/C $ 200Geothermal Cooling $ 140
Geo Savings $ 60
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ECONAR Energy Systems34
Case Study Case Study –– ResidentialResidential Annual Savings SummaryAnnual Savings Summary
Annual Geothermal SavingsCompared to: Htg + Clg = Total
Natural Gas $ 937 + $ 60 = $ 997
Propane $ 2,694 + $ 60 =$ 2,754
Electric $ 1,694 + $ 60 = $ 1,754
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ECONAR Energy Systems35
Your Solar CollectorYour Solar Collector