What does a ground source heat pump use to generate heat?

People who don't know much about heat pumps, when it comes to air energy heat pumps, there is some mystery, so how to understand air energy heat pumps, let's first understand air energy heat pumps from the working principle of heat pumps.

A heat pump is a device that draws heat from a low-temperature heat source and converts it into usable energy at a higher temperature; Or a system that can harness low-grade thermal energy. It can use the solar potential in the atmosphere and soil (using air as energy, that is, air energy heat pump) and the low-level heat energy of groundwater, surface water and industrial sewage waste heat to replace commodity energy to achieve winter heating and summer cooling of air conditioning. Through the heat pump, people can raise the temperature of the low-temperature heat energy in the above heat source to provide useful heat energy to life and production process, the charm of heat pump heating is not only to save energy, but more importantly to eliminate the pollution of boiler flue gas to the environment, to use it more safely, environmental protection and purify the natural environment on which human beings depend.

This is the fundamental reason for the rapid development of heat pumps since the world oil crisis in the 70s of the 20th century.

Ground source heat pumps are used to transform shallow water sources (such as groundwater, rivers and lakes) on the earth's surface and.

The solar energy and geothermal energy absorbed in the soil source to heat and heat are more energy-saving and stable than traditional air conditioners.

Ground source heat pumps. It works on the same principle as a household refrigerator.

through refrigeration in the evaporator.

Compressors, chillers and expansion valves.

and other components in the gas phase change cycle, transferring the heat of the low-temperature object to the high-temperature object.

Usually heat pumps are used for air conditioning refrigeration or heating, ground source heat pumps also make use of the huge heat storage capacity of the underground soil, the ground source transfers heat from the underground soil to the building in winter, and then transfers the cold energy of the underground to the building in summer, forming a cold and heat cycle in an annual period.

Ground Source Heat Pump Principle:The working principle of the ground source heat pump is: in winter, the heat pump unit absorbs heat from the ground source (shallow water or rock and soil) to heat the building; In summer, the heat pump unit absorbs heat from the room and transfers it to the ground source to achieve air conditioning and cooling of the building.

According to the different forms of geothermal heat exchange system, ground source heat pump system is divided into groundwater ground source heat pump system, surface water ground source heat pump system and underground pipe ground source heat pump system.

The above content refers to: Encyclopedia - Ground Source Heat Pump Principle.

First of all, let's explain why it's called a heat pump.

A water pump is a tool that moves water from a low level to a high level.

In the same way, a heat pump moves heat from "low" to "high".

In the natural state, heat can only move from high to low temperature, that is, 100 degrees of water is placed in a room of 20 degrees, and the water will slowly cool and eventually maintain equilibrium with the room temperature, but the water cannot spontaneously absorb the temperature of 20 degrees of air to make itself warmer.

In the same way, in winter, we have to keep the indoor temperature at 20 degrees, and the outdoor air is minus 5 degrees, how to use it.

One is to reduce the outdoor air from minus 5 degrees to minus 15 degrees, so that the heat squeezed out is used to heat the room, which is the principle of the air source heat pump, but this process cannot be carried out spontaneously and consumes electricity.

Ground source heat pump is to use the temperature of the earth, in winter, the temperature of the place below two meters or even deeper is much higher than the temperature of the outdoor air, reduce the temperature of this part, and transfer the extruded heat to the room, which can heat the house.

The general principle is this, and if it is a little more detailed, it is necessary to introduce engineering thermodynamics, heat transfer and other things.

To put it more simply: the air conditioner in summer transfers heat from the interior to the outside; Ground source heat pump is a reverse process that transfers heat from the ground to the room for cooling.

Refrigerator. Ground source heat pumps work on the same principle as household refrigerators, transferring heat from low-temperature objects to high-temperature objects through the circulation of gas phase changes in components such as evaporators, compressors, chillers and expansion valves.

Ground source heat pump is a new energy utilization technology that uses shallow ground energy for heating and cooling, and is a kind of heat pump, which is a device that uses the principle of Carnot cycle and reverse Carnot cycle to transfer cold and heat. Ground source heat pumps are usually used to transfer heat or cooling from the subsoil to where it is needed.

Heat pumps are usually used for air conditioning, cooling or heating. The ground source heat pump also makes use of the huge heat and cold storage capacity of the underground soil, which transfers heat from the underground soil to the building in winter, and then transfers the cold energy from the underground to the building in summer, forming a cold and heat cycle in an annual cycle.

Ground source heat pump features:

1. High efficiency and energy saving, stable and reliable.

2. One machine is multi-purpose, the ground source heat pump system can be used for heating, cooling, and domestic hot water.

3. Low maintenance cost.

4. Long service life, polyethylene and polypropylene plastic pipes are used for underground buried pipes of ground source heat pumps, and the service life can reach 50 years.

5. Save space, there is no cooling tower, boiler room and other equipment, save the boiler room, the valuable area occupied by the cooling tower, produce additional economic benefits, and improve the external image of the environment.