How A Ground Source Heat Pump Works

Kenzo engineering have been manufacturing and installing ground source heat pumps since 1999 with over 2,500 complete systems manufactured so far you can trust kenza to deliver award-winning expertise and advice in this video you will learn how a ground source heat pump works the purpose of a heat pump is to absorb low-grade heat in one place where it is plentiful then to transport concentrate and release it in another location where it can be used for space or water heating the ground absorbs low-grade solar energy by means of direct sunlight and rain this gives the ground a year-round temperature of around 8 to 12 degrees celcius but how can this low-grade heat be used to heat an entire building a cold water antifreeze mix is pumped through the ground within a series of energy absorbing pipes known as ground or raised as heat naturally flows from warmer to cooler places the antifreeze mix circulating around the array is constantly warmed by the grounds low-grade heat having increased in temperature the antifreeze mixture is fed into a heat exchanger called the evaporator within the secondary sealed side of the evaporator heat exchanger is a refrigerant which acts as a heat transfer fluid when the water antifreeze mixture enters the evaporator the energy absorbed from the ground is transferred into the refrigerant which begins to boil and turn into a gas the refrigerant never physically mixes with the water antifreeze mixture they are separated like sandwich layers by the plates of the heat exchanger which permits the heat transfer this gas is then fed into a compressor the pressure of the refrigerant gas is increased in the compressor which makes the gas temperature rise the hot refrigerant gas then flows into a second heat exchanger called the condenser which features an identical set of heat transfer plates the condenser delivers water hot enough to serve the space heating system and if required the properties hot water needs having transferred its heat the refrigerant gas reverts to a liquid this liquid is then passed through an expansion valve at the end of the cycle to reduce its pressure and temperature ready to commence the cycle all over again low-grade heat stored in the ground has been upgraded by the refrigeration process to deliver hot water for each kilowatt consumed by the heat pump four kilowatts of energy is generated effectively meaning the cost per kilowatt hour is quartered plenty more information can be found on the company website or in other kinds of videos please also consider attending a 1-day cancer training course or utilize the e-learning installer training tool at WWE NZ engineering comm ford slash training tool Kenza looks forward to working with you you

Channel: Kensa Heat Pumps

Views: 377,231

Keywords: kensa, kensa engineering, kensa heat pumps, ground source heat pump, how a heat pump works, what is a heat pump, gshp, Heat Pump

Id: KE3SvNRmwcQ

Length: 3min 8sec (188 seconds)

Published: Thu Dec 08 2011