Types of Heat Pump

A. Brine Source Heat Pump: ground heat as the heat source

6  Horizontal Collector

           7   Vertical Collector

B. Air Source Heat Pump: air as the heat source-air /water heat pump


External installation                               Internal installation


11Diagrams of air/water heat pump

C. Water Source Heat Pump: ground water as the heat source–water/water heat pump

13 Ground water well






Geothermal Energy

  • What is Geothermal Energy?                                                   

Geo (Greek for Earth) Thermal (heat)                             

Temperature of Shallow Crust (upper 10ft.) 55-75 F

Up to 14,400 F (8,000 C) at Molten Core

(approximate 4000 meter to center of core)

  • Brief History of Geothermal Energy

Paleo0Indians Usage Dates 10,000 years ago                 3

Use by Romans-

Hot Spas; Hot Running Water

Early 1800s – Yellowstone hot Spring

and Hot Spring Alkansas

1830 1st Commercial Use; Asa Thompson bath   in Wooden Tub for $1

  • Geothermal Potentials

Seasonal variations measurable until 10-15 depth

At 10 meters depth the ground is approximately 1K warmer than the yearly

than the yearly average  ambient temperature

In high depth the temperature rises 2.5-4K each 100meter

For passive cooling depths of 30-100 meters are suitable


Heat pump –the Energy Saving System

Environmental energy can be from

  • Ambient Air
  • Water
  • Brine (Ground heat)

Advantages of Heat Pumps                    Untitled     

  • Saving energy and money
  • Protecting environment
  • No need of any maintenance


What is a heat pump and how does it work?

Heat Pump

A heat pump is an electrical device that extracts heat from one place and transfers it to another. The heat pump is not a new technology; it has been used around the world for decades. Refrigerators and air conditioners are both common examples of this technology.

The heat pump cycle is fully reversible, and heat pumps can provide year-round climate control for your home – heating in winter and cooling and dehumidifying in summer. Since the ground and air outside always contain some heat, a heat pump can supply heat to a house even on cold winter days.

An air-source heat pump absorbs heat from the outdoor air in winter and rejects heat into outdoor air in summer. It is the most common type of heat pump found in homes at this time. However, ground-source (also called earth-energy, geothermal, geoexchange) heat pumps, which draw heat from the ground or ground water, are becoming more widely used.