Navigation Links
Tracking down particulates

This release is available in German.

For some years now, consumers have been making increasing use of wood as a fuel and not only on account of the rising cost of heating oil and natural gas. "Comfort fireplaces" have become all the rage because open fires, tiled and wood-burning stoves give a room a snug and cozy feel. But using wood for heating has one distinct disadvantage. When pellets, logs or briquettes are burnt, fine dust particles that are hazardous to health are released into the atmosphere. These particles are known to cause coughs, place stress on the cardiovascular system, and are thought to be carcinogenic. Indeed, studies by the World Health Organization have found that fine dust particles reduce average life expectancy in Germany by approximately ten months.

According to the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, there are now 14 million small, single-room combustion plants installed all over Germany and that figure is on the rise. Wood use by private individuals has gone up by 60 to 80 per cent since the year 2000. In 2004, emissions from domestic heating systems exceeded road traffic emissions for the first time ever. Earlier this year, in an attempt to deal with this increase in pollution, the federal government passed an amendment to the First Ordinance on the Implementation of the Federal Immission Control Act, and new pollution limits for small combustion plants which include both wood-burning stoves and wood-fired boilers came into effect at the end of March. One significant change is that these limits now apply to heating systems with a rated heat output of 4 kilowatts or more, whereas previously only systems with a rated heat output of 15 kilowatts or more were affected. As a result, the number of stoves that will have to be inspected for dust emissions will rise dramatically.

Working together with the firm Vereta, researchers at the Fraunhofer Institute for Toxicology and Experimental Medicine ITEM in Hannover and the Institute for Mechanical Process Engineering at Clausthal University of Technology have now developed a measuring device that determines levels of fine dust emissions at source. The project was funded by the German Federation of Industrial Research Associations (AiF), and Professor Wolfgang Koch, head of department at the ITEM, explains their achievement: "To date there is no validated method for measuring the dust content in flue gases. The Bosch smoke count method used with oil-fired heating systems is not appropriate, as it looks primarily at soot particles, and soot is not the principal component of emissions from wood-fired combustion. Our device makes it possible to measure particulate concentrations instead. To do this, we simply place a sampling probe developed by us in the stove flue." The probe draws off some of the flue gases, which are diluted with pre-treated air at the tip of the probe and then cooled in a conditioning unit. The conditioned flue gases are subsequently fed through two optoelectronic sensors which use different measuring techniques: the aerosol light-scattering photometry method devised by ITEM, and the aerosol photoemission method developed by Clausthal University of Technology. An algorithm combines the electrical signals from both these sensors to produce a definitive reading.

Professor Alfred Weber of Clausthal University of Technology is proud to report: "We have successfully tested a prototype of the new measuring device. We conducted numerous tests on wood-burning stoves that were being run on a variety of fuels, and were able to prove a linear relationship between the calculated signal received from the device and the mass concentration that was simultaneously measured using a filtering process. This innovative technology provides heating engineers with a cost-effective tool for determining the precise concentration of particulate matter." The researchers have applied for a patent for their new measuring method, and Vereta, supplier of the electronic control technology that supports the sensor, has submitted the device for evaluation by the German Technical Inspection Association (TV).


Contact: Wolfgang Koch

Related medicine news :

1. Tracking PSA Test Results Over Time Gives Clues to Cancer
2. Color-coded tracking method helps scientists analyze outcomes of newly transplanted tissue
3. Life Science Contract Manufacturing Gains Predictable On-Time Production with TraceLink's Production Tracking Solution
4. USPack Courier Brings Tracking Precision to Medical and Blood Shipments
5. Newest Release of FileTrail Sets New Standard in Global Physical Records Management and File Tracking
6. TalentWise Integrates Employment Screening with Leading Applicant Tracking Solution for Healthcare Industry TalentWise becomes HealthcareSource Certified Integration Partner For Position Manager Product
7. COO Becomes 75% More Effective in Tracking Delegated Tasks
8. Announces New Stock Index Tracking Chinese Healthcare Stocks
9. Massive Food Flavoring Recall Underscores Need for New Tracking Technology to Contain Outbreaks of Foodborne Illness
10. The Pediatric Dengue Vaccine Initiative Introduces - a News hub for Tracking Dengue Fever Epidemics Worldwide
11. ASAP Systems Pioneers the Use of Built-In Video Help on their Passport Inventory, Stock, Warehouse Management System and Asset Tracking Software
Post Your Comments:
Related Image:
Tracking down particulates
(Date:11/30/2015)... ... 2015 , ... MOSI recently added two state-of-the-art augmented reality (AR) experiences from ... to their collection of interactive exhibits within the Kids In Charge! building. In collaboration ... to get closer than ever to a range of animals as they drink, sleep ...
(Date:11/30/2015)... CA (PRWEB) , ... November 30, 2015 , ... The ... grafts, strip harvesting and follicular unit extraction. These techniques and procedures have been in ... patients suffering from hair loss. While Dr. Parsa Mohebi, M.D. has utilized many of ...
(Date:11/30/2015)... ... November 30, 2015 , ... On Saturday, October 24th, ... Society held an annual fundraising event, a 5K walk known as “Making Strides Against ... for substance abuse which is also located in Battle Creek, joined in for this ...
(Date:11/30/2015)... ... , ... The presidential race normally deals with political issues of national importance ... news story when Donald Trump makes disparaging remarks about Hillary Clinton’s hairstyle? It is ... wants to admit when it comes to how people are viewed by others. , ...
(Date:11/30/2015)... (PRWEB) , ... November 30, 2015 , ... According to ... James Decker made a brave but slightly unusual choice to show her Instagram followers ... her pre-pregnancy form may have been pre-mature. Saying that she didn’t “want to mislead ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... Nov. 30, 2015  Kevin Smith has been ... a global pioneer in wireless monitoring of vital ... MA , Mr. Smith will be responsible ... commercial strategy.  He will also directly oversee partnering ... clinical evidence for SensiumVitals, the first early warning ...
(Date:11/30/2015)... and SAN DIEGO , Nov. 30, ... (NASDAQ: ARNA ) today announced that the U.S. ... the New Drug Application (NDA) for an extended release ... will offer patients a chronic weight management treatment in ... is currently approved as an adjunct to a reduced-calorie ...
(Date:11/30/2015)... N.H. , Nov. 30, 2015 ... that it will feature its latest solutions for ... early identification of cancer at the Radiological Society ... Chicago from November 29 ... recent product advances including iReveal®, an automated breast ...
Breaking Medicine Technology: