Post by marchesarosa on Oct 27, 2011 10:24:51 GMT 1
How is Ground Source Heat Gathered?
www.gebwell.fi/eng/products/ground-source-heat-pumps/operating-principle/
For one kilowatt used an average 3 kilowatts of heat is gained, even more in optimum circumstances. The best operating efficiency is gained with water circulating floor heating or equivalent system operating at low temperature.
Heat is gathered from the ground or water by heat collecting piping which can be dug in the ground or sunk into well drilled in bedrock. Piping can also alternatively be sunk into water. An anti-freezing, safe to environment liquid solution circulates in the piping and is warmed up by the surrounding mass.
The thermal energy is absorbed from the ground into a liquid solution circulating in a heat collecting pipes. In the evaporator energy is transferred from the liquid solution into the refrigerant. The liquid solution cools down approximately three degrees. The temperature and pressure of the refrigerant is increased to a higher level by using a compressor. In the condenser the energy is transferred from the refrigerant into the water of heating system. Warmed water is led to the house heating circuit and to the energy accumulator to produce domestic hot water.
The operating principle is the same as that of freezer’s except for the operating direction, which is reverse. Freezer transfers warmth of the groceries inside out from the freezer, while heating pump transfers heat from ground or water into a building.
www.gebwell.fi/eng/products/ground-source-heat-pumps/operating-principle/
For one kilowatt used an average 3 kilowatts of heat is gained, even more in optimum circumstances. The best operating efficiency is gained with water circulating floor heating or equivalent system operating at low temperature.
Heat is gathered from the ground or water by heat collecting piping which can be dug in the ground or sunk into well drilled in bedrock. Piping can also alternatively be sunk into water. An anti-freezing, safe to environment liquid solution circulates in the piping and is warmed up by the surrounding mass.
The thermal energy is absorbed from the ground into a liquid solution circulating in a heat collecting pipes. In the evaporator energy is transferred from the liquid solution into the refrigerant. The liquid solution cools down approximately three degrees. The temperature and pressure of the refrigerant is increased to a higher level by using a compressor. In the condenser the energy is transferred from the refrigerant into the water of heating system. Warmed water is led to the house heating circuit and to the energy accumulator to produce domestic hot water.
The operating principle is the same as that of freezer’s except for the operating direction, which is reverse. Freezer transfers warmth of the groceries inside out from the freezer, while heating pump transfers heat from ground or water into a building.