Featured Research

from universities, journals, and other organizations

New heat pump could last 10,000 years, experts say

Date:
April 27, 2011
Source:
The University of Stavanger
Summary:
Researchers in Norway are testing an entirely new kind of heat pump. While heat pumps used today typically last 10 to 20 years, the new one will last practically indefinitely, the scientists believe.

Jan Kεre Bording shows the new heat pump. The invention is much more environmentally friendly than those in use today.
Credit: Elisabeth Tψnnessen

Researchers in Norway are testing an entirely new kind of heat pump. While heat pumps used today typically last 10 to 20 years, the new one will last practically indefinitely, the scientists believe.

The new heat pump consists of many miniature heat pumps as small as one cubic millimeter. To heat a house one needs several thousand of them. They are put together into larger units that can be tall and thin or short and wide.

"The most important advantages of the new heat pump is that you can regulate its size and form and that it is more durable than heat pumps are today. It is also more environmentally friendly," Doctor of Physics Jan Kεre Bording says, who is Chief Engineer at the University of Stavanger in Norway.

Together with his colleague, Professor of Materials Science Vidar Hansen, he is developing a new heat pump that is thermo-electric. They have investigated its disadvantages and advantages compared with the heat pumps we use today.

The project is a collaboration project with the Department of Physics, University of Oslo. According to the researchers the heat pump will be fully developed and ready to be launched on the market in five to ten years.

A heat pump that lasts

Thermo-electric heat pumps make use of materials that produce electricity when they are subjected to differences in temperature.

The new heat pump has a dramatically longer life than today's heat pumps.

"The heat pumps we use today consist of several moveable parts. After some time different parts break down and will have to be changed," Bording says.

"The new heat pump consists of several miniature heat pumps and these have a very simple design. In opposite to today's heat pumps, these miniature heat pumps consist of only one part. Because they consist of only one metal part it's easier to avoid wear and tear. You can compare the heat pump to a golden ring. A golden ring won't be broken. The miniature pumps will just continue to pump. We stick fans on them, and they must be replaced, but the heat pump itself will stay and be equally effective after 10 000 years," Bording continues.

The heat pumps used today begin to deteriorate after one year. Then they need to be inspected, and that costs 1500 NOK for an air-to-air heat pump. After 10 to 20 years, larger parts of the pump will fail, for instance the compressor.

Thousands of pumps in a house

The small heat pumps can be put together and form lager units. The researchers also envisage that it may be possible to place several thousand of the small heat pumps at different places in the house.

"We don't want a large wood-burning stove in the middle of the house as in the old days. It's better with more, smaller heat sources," Hansen says.

Initially, however, researchers will create units that can be placed at one or two locations in the house. The new heat pumps offer great flexibility as to where in the house you want them. It would be an advantage to have them in places where it is especially cold.

"For example, it may be a good idea to put them under the floor, so that the floor will heat the room. When the heat pump has a large surface, it produces more heat," Bording says.

More environmentally friendly

The new heat pumps will be more environmentally friendly than those in use today. One problem with today's heat pumps is that they can leak cooling gas. Cooling gas is usually freon gas, which destroys the ozone layer. There is no risk of losing cooling gas in thermoelectric heat pumps, since gas has been replaced with clean electricity.

"We have seen that several of the gases used in heat pumps, have become illegal, such as freon 12. Gradually gases that are in use today can also become illegal, so that we can no longer use the heat pumps we have today," Bording says.


Story Source:

The above story is based on materials provided by The University of Stavanger. The original article was written by Ida Gudjonsson. Note: Materials may be edited for content and length.


Cite This Page:

The University of Stavanger. "New heat pump could last 10,000 years, experts say." ScienceDaily. ScienceDaily, 27 April 2011. <www.sciencedaily.com/releases/2011/04/110426102559.htm>.
The University of Stavanger. (2011, April 27). New heat pump could last 10,000 years, experts say. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2011/04/110426102559.htm
The University of Stavanger. "New heat pump could last 10,000 years, experts say." ScienceDaily. www.sciencedaily.com/releases/2011/04/110426102559.htm (accessed July 28, 2014).

Share This




More Matter & Energy News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Carbon Trap: US Exports Global Warming

The Carbon Trap: US Exports Global Warming

AP (July 28, 2014) — AP Investigation: As the Obama administration weans the country off dirty fuels, energy companies are ramping-up overseas coal exports at a heavy price. (July 28) Video provided by AP
Powered by NewsLook.com
Shipping Crates Get New 'lease' On Life

Shipping Crates Get New 'lease' On Life

Reuters - Business Video Online (July 25, 2014) — Shipping containers have been piling up as America imports more than it exports. Some university students in Washington D.C. are set to get a first-hand lesson in recycling. Their housing is being built using refashioned shipping containers. Lily Jamali reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) — Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com
TSA Administrator on Politics and Flight Bans

TSA Administrator on Politics and Flight Bans

AP (July 24, 2014) — TSA administrator, John Pistole's took part in the Aspen Security Forum 2014, where he answered questions on lifting of the ban on flights into Israel's Tel Aviv airport and whether politics played a role in lifting the ban. (July 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins