Related Info
Air conditioners lead home appliances slowly picking up Air conditioning with fresh air Is it useful Application and design of fresh air system in commercial kitchen equipment Carry out special inspection of centralized air conditioning and ventilation systems Do summer air-conditioning rooms need air purifiersDo you know the working principle and advantages of the ground source heat pump
What is a ground source heat pump?
The so-called ground source heat pump is a device that uses the relatively stable characteristics of the soil temperature at the underground normal temperature to complete the heat exchange with the inside of the building through the pipeline system deeply buried around the building.
This is a very interesting device, where is it interesting? Let's take a look at how it works.
The ground source heat pump uses soil as a heat source and a cold source to supply heat or cold to the building through a high-efficiency heat pump unit. To put it bluntly, it uses soil as fuel to convert it into heat, which can absorb heat and release heat. It can also achieve the effect of keeping warm and cooling.
Isn't it interesting?
Even though many technologies can achieve this effect, but also the soil has been utilized to make it so interesting to use, what else can not be done?
In addition to being interesting, what other advantages does this device have? Let's take an inventory together!
1. Renewable resources
Since it is soil, it must be recycled. This technology uses shallow geothermal resources on the earth's surface as a cold and heat source for energy conversion, and the shallow surface is a huge solar collector that collects 47% of the solar energy, which is more than 500 times the energy used by humans every year Without being restricted by regions, resources, etc., it is truly large and ubiquitous. This is a near-infinite renewable energy stored in shallow layers of the surface, and it is also a clean energy. Compared with the ambient air on the ground, the soil temperature below 5m above the ground is basically stable throughout the year and is slightly lower than the average annual temperature, which can provide a relatively low condensation temperature and a high evaporation temperature in summer and winter, respectively. So in terms of thermodynamics, soil is a cold and heat source of a heat pump system that is better than ambient air. Moreover, the ground source heat pump system will not exhaust heat, water vapor and bacteria into the atmospheric environment, which meets the current strategic requirements for sustainable development. Usually the soil source heat pump consumes 1KW of energy, and the user can get more than 4KW of heat or cold energy. This extra energy is the energy from the soil. In addition, the relatively constant temperature of the ground energy makes the operation of the heat pump unit more reliable and stable, and also ensures the efficiency and economy of the system. According to EPA estimates by the US Environmental Protection Agency, a well-designed and installed ground source heat pump can save users 30% to 40% of the operating costs of heating, cooling and air conditioning on average. The efficient ground source heat pump unit generates an average of 1 ton of cold with only 0.88kW of power consumption, and its power consumption is only 30% to 60% of the ordinary chiller and boiler system.
2. Low operating cost
Compared with traditional air-conditioning systems, annual operating costs can be reduced by about 40%. The soil source heat pump system is adopted. Due to the temperature of the soil, the soil source heat pump can have higher efficiency and better reliability than the air-cooled heat pump. The heat source temperature is relatively stable throughout the year, generally l0-25 ℃. In addition, the ground source heat pump system can be used for heating, air conditioning, and domestic hot water. A system can replace the original boiler, air conditioning and refrigeration device or system, and one machine can be used for multiple purposes; It is more suitable for heating and air conditioning of villa residence. In addition, the long service life of the unit is about 20 years; the unit is compact and space-saving: the maintenance cost is low; the degree of automation control is high, and it can be unattended. The heat source in the ground source heat pump does not refer to the hot gas or hot water in the geothermal field, but refers to the general normal temperature soil, so there are no extraordinary requirements for the underground heat source, which can be applied in most areas of China.
The COP value of the ground source heat pump system is generally about 3 to 6, which is about 40% higher than that of the traditional air source heat pump, and the operating cost is 50% to 60% of the ordinary center empty.
3. Less floor space
Because the heat exchanger is buried underground, the machine room occupies a small area and saves space.
4. Green and environmental protection
The ground source heat pump system uses shallow geothermal resources on the surface of the earth, without combustion, smoke and waste, environmentally friendly plots, and no pollution. The discharge of pollutants from the ground source heat pump is equivalent to a reduction of more than 40% compared with the air source heat pump Compared with electric heating, it is equivalent to a reduction of more than 70%. If combined with other energy-saving measures, energy saving will be more obvious. Although refrigerant is also used, it reduces the filling volume by 25% compared to conventional air-conditioning devices; the ground source heat pump system is a self-contained system, that is, the device can be fully sealed in the factory workshop in advance, therefore, the probability of refrigerant leakage is large To reduce. The device operates without any pollution, can be built in residential areas, installed under green spaces, parking lots, without burning, no smoke, no waste, no need to pile up fuel waste site, and do not need to transport heat over long distances. The ground source heat pump system does not have cooling towers and other outdoor equipment, and there is no central air conditioner centralized land occupation problem, saving space and land, bringing additional profits to developers, generating additional economic benefits, and improving the external image of the building;
5. High degree of automation
The inside of the unit and the unit and the system can be automatically controlled, and the unit can be controlled to start and stop according to the outdoor temperature change and indoor temperature requirements to achieve the * energy saving effect, while saving manpower and material resources;
The unit can be adjusted independently, and the machine can be adjusted arbitrarily. The investor can adjust the supply time and temperature as required, completely autonomous;
One machine can be used for heating and cooling, and the waste heat generated during cooling can also provide hot water for domestic production or heating of the swimming pool, * using energy to a limited extent.
Subscribe to relevant news content?
Subscription
Unsubscription
Recent related posts
Customers frequently viewed
IWAYA DENKI Water Pump 25CJT0752
US$2307.69
Panasonic Servo Motor MHMF022L1V2M
US$653.85
Honeywell Solenoid Valve VE4025B1045
US$334.62
ROTEN Mechanical Seal 8E5K-22-X
US$384.62
STAIRS Water Pump CBK8-50/2
US$1384.62
Festo Air Cylinder ADVUL-25-20-P-A-S2
US$173.08
Allen Bradley PLC 1761-NET-DNI
Contact Us
TORRINGTON Bearing FJ-1512
US$17.69
NKK Switch LB-25RKG4
US$31.92
Delta Fan AFB1224VHE
US$28.99
Schneider Circuit Breaker EJB24070
Contact Us
GE Circuit Breaker FEN36MC250KF
US$965.77
