Geothermal Heating (PA Technology)

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Name of technology example: Type
Geothermal Heating
Geothermal Heating.jpg
☐ Energy Efficiency
Renewable Energy
☐ Alternative Methodology
Description Geothermal heating is the direct use of geothermal energy for heating applications. Humans have taken advantage of geothermal heat this way since the Paleolithic era. Approximately seventy countries made direct use of a total of 270 PJ of geothermal heating in 2004. As of 2007, 28 GW of geothermal heating capacity is installed around the world, satisfying 0.07% of global primary energy consumption. Thermal efficiency is high since no energy conversion is needed, but capacity factors tend to be low (around 20%) since the heat is mostly needed in the winter.

Geothermal energy originates from the heat retained within the Earth since the original formation of the planet, from radioactive decay of minerals, and from solar energy absorbed at the surface. Most high temperature geothermal heat is harvested in regions close to tectonic plate boundaries where volcanic activity rises close to the surface of the Earth. In these areas, ground and groundwater can be found with temperatures higher than the target temperature of the application. However, even cold ground contains heat, below 6 metres (20 ft) the undisturbed ground temperature is consistently at the Mean Annual Air Temperature and it may be extracted with a heat pump.

Source: http://en.wikipedia.org/wiki/Geothermal_heating

Geothermal heat can ideally be use for heating greenhouses.

Technology for the Application of
☐ Solar ☐ Biomass ☐ Biofuel
☐ Biogas ☐ Wind Geo-Thermal
☐ Hydro ☐ Energy Efficiency
☐ Other: /
Primarily Relevant for the following Agricultural Value Chain Steps
☐ Mechanization ☐ Efficiency of Operation ☐ Processing
☐ Transportation Controlled Atmosphere Controlled Temperature
☐ Mechanical Sorting ☐ Preservation
☐ Other: /
Primarily Relevant for the following Agricultural Value Chain Activities
☐ Grinding ☐ Hauling and conveying ☐ Sorting
☐ Seedbed Preparation ☐ Milling ☐ Tearing
☐ Planting ☐ Washing ☐ Mixing
☐ Pumping Heating Drying
☐ Irrigation ☐ Cooling ☐ Animal feeding
☐ Fertilizing ☐ Venting ☐ Animal health and Welfare
☐ Pest Management ☐ Lighting ☐ Packing and branding
☐ Cutting ☐ Sanitation
☐ Other: /
Primarily Implemented in the following Commodity Groups
☐ Cereals Fruits and vegetables ☐ Nuts and berries
☐ Forage ☐ Dairy products ☐ Meat products
☐ Oil Seeds ☐ Roots and Tubers ☐ Eggs
☐ Pulses ☐ Fiber Crops ☐ Forestry
☐ Sugars ☐ Stimulants ☐ Spices
☐ Other: /
Region & Country of
Development
N/A

☐ Africa
☐ South Asia
☐ East Asia & The Pacific
☐ Europe & Central Asia
☐ Latin America & The Caribbean
☐ Middle East & North Africa
☐ North America
N/A: Region of development cannot be named
Region & Country of
Current Deployment
N/A

☐ Africa
☐ South Asia
☐ East Asia & The Pacific
☐ Europe & Central Asia
☐ Latin America & The Caribbean
☐ Middle East & North Africa
☐ North America
N/A: Region of current deployment cannot be named
Region & Country of
Potential Deployment
N/A

☐ Africa
☐ South Asia
☐ East Asia & The Pacific
☐ Europe & Central Asia
☐ Latin America & The Caribbean
☐ Middle East & North Africa
☐ North America
N/A: Any region with geothermal resources
Manufacturers
Economics
Technology Development Level
Required Maintenance Technical Level
Required Infrastructure for Deployment
Required Resources during manufacture
Required Resources during operation
Deployment
Level
Deployment Capability and Potential
Requirements for Deployment
Relevance for Autonomy and Food Security
Environment Impacts (emissions)
Conformity with Bio- Cybernetic System Rules Yes;
Additional information / Comments No comments.
Internal Reference
Additional Links

https://www.extension.org/pages/27790/geothermal-heat-for-greenhouses

http://geoheat.oit.edu/

http://geoheat.oit.edu/bulletin/bull26-1/art2.pdf

http://www.jardhitafelag.is/media/PDF/S14Paper029.pdf

http://www.hort.vt.edu/ghvegetables/documents/Greenhouse%20Heating_Energy/ChiassonGhGeotherma_tp118.pdf

http://www.newenergynexus.com/500/geothermal-greenhouse-heating

"Renewable Energy," is not in the list (Energy Efficiency, Renewable Energy, Alternative Methodology) of allowed values for the "PAT Type" property.