geothermal heat pump
In the City of Toronto’s first joint geothermal project, 6,200 feet of pipe were drilled under the public laneway beside the hostel.
The fluid-filled pipes tap into the constant 10° to 12°C temperature found deep in the earth, then wind their way back to the hostel where that heat is transferred to the building via heat pumps, providing carbon-free warmth to rooms and common spaces.
In summer the reverse happens. Heat from the building is transferred to the fluid in the pipes then pumped outside, keeping the temperature cool and comfortable.
The planet traveler is the first building to have
installed a geothermal pipe in the City of Toronto.
How it works
A geothermal heat pump or ground source heat pump (GSHP) is a central heating and/or cooling system that transfers heat to or from the ground.
It uses the earth all the time, without any intermittency, as a heat source (in the winter) or a heat sink (in the summer). This design takes advantage of the moderate temperatures in the ground to boost efficiency and reduce the operational costs of heating and cooling systems. Geothermal pump systems reach fairly high coefficient of performance (CoP), 3 to 6, on the coldest of winter nights, compared to 1.75–2.5 for air-source heat pumps on cool days. Ground source heat pumps (GSHPs) are among the most energy efficient technologies for providing HVAC and waterheading.
Sources : Wikipedia