Ground source


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DT117/4 Sustainable Build & Design - Class Presentations

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Ground source

  1. 1. By Shane Keegan
  2. 2. Included in presentation <ul><li>Introduction </li></ul><ul><li>Components of a ground source heat pump </li></ul><ul><li>Typical ground source heat pump </li></ul><ul><li>Grants </li></ul><ul><li>benefits </li></ul>
  3. 3. Introduction <ul><li>When the sun is present it gives of heat which heats the earth, this heat is then stored in the earths crust. </li></ul><ul><li>GSHP’s (ground source heat pumps) are a system put in place that extracts this heat from the ground to heat a dwelling space or to heat the water in a certain dwelling. </li></ul><ul><li>This system is a very useful system as it will help reduce the carbon footprint of that particular dwelling and it will also reduce the heating bill for that dwelling. </li></ul><ul><li>GSHP systems are best suited to dwellings that are very well insulated and trap the heat that is given off by the GSHP inside the dwelling. </li></ul>
  4. 4. Ground source heat pumps <ul><li>There are three main components of a GSHP, this includes: </li></ul><ul><li>1:The Ground Loop: </li></ul><ul><ul><li>The ground loop consists of lengths of pipe buried in the ground. These pipes will be either laid horizontally in trenchs or vertically in boreholes </li></ul></ul><ul><ul><li>Also a coil pipe may be used, this will usually be used horizontally in a trenchs. </li></ul></ul>
  5. 5. Coil, ground loop in trench
  6. 6. Ground source heat pumps <ul><li>This ground loop is more often then not a closed circuit system. </li></ul><ul><li>This sytem will be filled with water and anti-freeze will be added to the water to stop the water freezing if the temprature of the ground drops below freezing. </li></ul><ul><li>This mixture is then pumped around the pipe system and absorbs the heat which is stored in the ground. </li></ul>
  7. 7. Ground source heat pumps <ul><li>2: The Heat Pump </li></ul><ul><li>The heat pump consists of three parts: </li></ul><ul><li>The evaporator </li></ul><ul><ul><li>This is the component of the heat pump which absorbs the heat using the mixture in the ground loop. </li></ul></ul><ul><li>The compressor </li></ul><ul><ul><li>This component of the heat pump circulates the gaseous refrigerant around the heat pump. It then compresses the gaseous refrigerant to the temperature required for the heat distribution circuit </li></ul></ul><ul><li>The condensor </li></ul><ul><ul><li>This component of the heat pump provides heat for the hot water tank which then feeds the distribution system. </li></ul></ul>
  8. 8. Ground source heat pumps <ul><li>3: The Heat Distribution System </li></ul><ul><li>This is the component of the ground source heat pump that provides heat to the area or space that is to be heated. </li></ul><ul><li>This is done through components that can be commonly found in everyday heating systems such as under floor pipes and radiators. </li></ul><ul><li>Also the ground source heat pump can be used to heat the dwellings water supply which will provide hot water for the dwelling. </li></ul>
  9. 9. Typical Ground Source Heat Pump System:
  10. 10. Ground source heat pumps: <ul><li>Grants: </li></ul><ul><li>As sustainability is a key factor in todays society the SEAI (sustainable energy authority ireland) are providing grants that will help with the installation costs of the GSHP. </li></ul>
  11. 11. Ground source heat pumps: <ul><li>Advantages of GSHP: </li></ul><ul><li>  </li></ul><ul><ul><li>W hen installed they are hidden from view </li></ul></ul><ul><ul><li>W ill reduces CO2 emissions </li></ul></ul><ul><ul><li>Will help reduce heating bills </li></ul></ul><ul><ul><li>Better for the environment </li></ul></ul>