Can Heat Pumps Be Used to Cool Water for Heat Exchangers?

In summary, the conversation discusses the use of a Ground Source Heat Pump to generate warm water for central heating. The person wonders if it is possible to use a higher inlet water temperature to transfer heat energy for a second loop of water at a higher temperature. They are trying to cool water from 33C to 20C for a cooling heat exchanger and mention that recovering heat would be the most beneficial solution. They also mention the importance of considering the performance of specific heat pump designs.
  • #1
Ben Reade
11
0
Hello there,

So with say a Ground Source Heat Pump you have a source of warm-ish water coming in at 10 - 15 degrees C or so, and using a Heat Pump you are able to get a central heating temperature of about 40 degrees for your central heating system.

Could you in theory, use a inlet water temperature of say 30-35C and transfer the heat energy from this water into something useful like say a second loop of water around 50 - 60 degrees C.

Basically I'm trying to cool water from 33C to 20C so it can be recycled in a cooling heat exchanger on a test rig.
Recovering the heat is the most beneficial solution to this.

Thank you for any help and advice
 
Engineering news on Phys.org
  • #2
Performance is specific to the design of the heat pump, so you should look at specific products to see what performance is available.
 

What is a heat pump?

A heat pump is a device that uses electricity to transfer heat from one location to another. In the case of "water to water" heat pumps, they use water as the heat source and heat sink.

How do "water to water" heat pumps work?

"Water to water" heat pumps work by using a refrigerant to absorb heat from a water source, such as a lake or well, and then transferring that heat to a different water source, such as a hot water tank or a radiant floor system. This process is achieved through the use of a compressor, condenser, and evaporator.

What are the benefits of using a "water to water" heat pump?

There are several benefits to using a "water to water" heat pump. They are highly efficient, as they transfer heat instead of creating it, and can reduce energy costs compared to traditional heating systems. They also have a longer lifespan than other heating systems, as they have fewer moving parts. Additionally, they can provide both heating and cooling for a building.

Are there any limitations to using a "water to water" heat pump?

Yes, there are some limitations to using a "water to water" heat pump. They require a water source and heat sink, which may not be available or feasible for all locations. They also have a higher upfront cost compared to other heating systems. Proper sizing and installation are crucial for optimal performance and efficiency.

Can "water to water" heat pumps be used in all climates?

"Water to water" heat pumps can be used in most climates, but their efficiency may vary depending on the temperature of the water sources. In colder climates, they may need a backup heating system to ensure proper heating during extreme temperatures. In warmer climates, they may need a cooling tower to dissipate excess heat.

Similar threads

Electric Heater vs Heat Pump: Efficiency for Heating Water to High Temperatures
    • Mechanical Engineering
Replies
8
Views
528
Improving heat transfer in domestic hot water tank?
    • Mechanical Engineering
Replies
15
Views
2K
Does a "heat pump" not spew HFCs like an "air conditioner"?
    • Mechanical Engineering
Replies
7
Views
1K
Can passive heat collection be used to heat water to very high temperatures?
    • Mechanical Engineering
Replies
8
Views
994
Under floor water heating - result of overflow
    • Mechanical Engineering
Replies
9
Views
808
What factors affect heat rejection in vacuum pump systems?
    • Mechanical Engineering
Replies
3
Views
2K
Direct steam injection into cooling water line at pump suction
    • Mechanical Engineering
Replies
3
Views
1K
Thermodynamic possiblity for outlet temperatures of heat exchanger
    • Mechanical Engineering
Replies
1
Views
835
Underground pump vault airflow considerations
    • Mechanical Engineering
Replies
15
Views
783
Pulling a vacuum on a heat pump with a recovery machine
    • Mechanical Engineering
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top