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Ground source



DT117/4 Sustainable Build & Design - Class Presentations

DT117/4 Sustainable Build & Design - Class Presentations



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Ground source Ground source Presentation Transcript

  • By Shane Keegan
  • Included in presentation
    • Introduction
    • Components of a ground source heat pump
    • Typical ground source heat pump
    • Grants
    • benefits
  • Introduction
    • When the sun is present it gives of heat which heats the earth, this heat is then stored in the earths crust.
    • 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.
    • 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.
    • 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.
  • Ground source heat pumps
    • There are three main components of a GSHP, this includes:
    • 1:The Ground Loop:
      • 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
      • Also a coil pipe may be used, this will usually be used horizontally in a trenchs.
  • Coil, ground loop in trench
  • Ground source heat pumps
    • This ground loop is more often then not a closed circuit system.
    • 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.
    • This mixture is then pumped around the pipe system and absorbs the heat which is stored in the ground.
  • Ground source heat pumps
    • 2: The Heat Pump
    • The heat pump consists of three parts:
    • The evaporator
      • This is the component of the heat pump which absorbs the heat using the mixture in the ground loop.
    • The compressor
      • 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
    • The condensor
      • This component of the heat pump provides heat for the hot water tank which then feeds the distribution system.
  • Ground source heat pumps
    • 3: The Heat Distribution System
    • This is the component of the ground source heat pump that provides heat to the area or space that is to be heated.
    • This is done through components that can be commonly found in everyday heating systems such as under floor pipes and radiators.
    • Also the ground source heat pump can be used to heat the dwellings water supply which will provide hot water for the dwelling.
  • Typical Ground Source Heat Pump System:
  • Ground source heat pumps:
    • Grants:
    • 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.
  • Ground source heat pumps:
    • Advantages of GSHP:
      • W hen installed they are hidden from view
      • W ill reduces CO2 emissions
      • Will help reduce heating bills
      • Better for the environment