in the name of god. energy and exergy analysis of geothermal heat pump supervisor : dr. ali...
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In the name of god
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energy and exergy analysis of
geothermal heat pump
Supervisor : Dr. Ali Sarreshtehdari
Student : Mohammad Kalami
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DirectoryGeothermal Heat Pump
introduction
Geothermal energy
Exergy analysis
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introduction
Limitation of fossil fuel
No carbon emissions
Relatively cheaply
Control Temperature and humidity
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v
Geothermal energy
Magma
Use of geothermal energy
Heating (buildings,greenhouse,melting of snow,...)
Power plant
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47°
42°37°
42°
57°52°
62°
67°
72°
Range of temperatures in different regions of the United States
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Geothermal heat pump
0° 30° 60° 70° 80°
Depth
6ft
13ft
20ft
26ft
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HeatHeat
Up to 80% of the cooling and heating needs of a
building can readily come free from the constant
temperature of the earth. We’re just moving it.
Heatingcooling
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Heating and cooling systems
Ground Loops
Heat Pumps
Heat Distribution Systems
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Horizontal vertical
closed Loop Geothermal Systems
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Ground Loops
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Open Loop Geothermal System
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Heat Pumps
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Heat Distribution Systems
Air
Water-to water unit
Cold
warm
Hotwater tank
Water to air distribution system
Water to water distribution systems
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2
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Exergy analysis of geothermal heat pump
Exergy efficiency η=
Exergy loss coefficient d =
Exergy loss ratio λ =
Thermodynamic perfect degree εcom =
Exergy loss ΔEox = Ʃ Eo xin - Ʃ Eo xout
- Qo (1 - ) + Woin
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7 8
= ( - ) + (1- ) =
= =
=
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[1] Egg J., Clark H.B.;"Geothermal HVAC,Green Heating and Cooling", Copyright by The McGraw-Hill Companies, 2011,United States
[2] Fan R., Jiang Y., Yao Y., Shiming D., Ma Z.;" A study on the performance of a geothermal heat exchanger under coupled heat conduction and groundwater advection", Energy 32,2007.
مدل سازي و بهينه سازي فني و اقتصادي سپهر و نیرومند، بهزاد؛"،صنایع [3] .1386پمپ گرمايي با مبدل زميني افقي"،ششمین همایش ملی انرژی،
REFERENCES
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Thank you for your attention
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