This data set contains a summary of tests performed on a 26kW oil-fired condensing boiler performed primarily to measure NOx and PM emission factors, but also to examine the boiler performance and efficiency at all operating modes. A total of 31 tests were performed on this boiler and details of each individual test are also included in the dataset. 3 main boiler operating modes were examined, and two different PM measuring techniques were used. The main operating modes were: steady state, cold start and warm start. Steady state operation represented operation at the nominal output of the boiler under steady conditions. Cold start represented the first ten minutes of boiler operation when starting up from ambient temperature. Warm start operation is found when the boiler is cyling on and off every 3/4 minutes to maintain the desired temperature within the dwelling. PM was measured using both a Dekati Low Pressure Impactor and filter sampling system. The DLPI gave information on the overall mass concentration of PM as well as the mass size distribution. The filter system just gave information on the mass concentration. Other tests examined the effect of boiler condensing mode on emissions (negligible) and the effect of changing the air fuel ratio on PM and NOx emissions.

Within each of these individual results files there are 7 broad segments. The first part contains details of the PM mass measurements that were carried out; recorded mass increased of the PM substrates, experiment notes, atmospheric conditions, etc. Part 2 gives details of the fuel consumption data for each test while Part 3 contains the results from the LabVIEW Data Acquisition System that was used to record all operating parameters used to measure boiler performance, e.g. water flow and return temperatures, water flow rate, flue temperature, ambient temperature, boiler heat output, etc. Part 4 contains results from the Testo 350 M/XL gas analyser which was used to measure NOx concentration as well as O2, CO, CO2 and H2. In addition this part also includes details of all calculations performed on this data to calculate the various emission factors in a variety of units. In part 5 the PM data captured by the low pressure impactor is inverted to find the PM mass size distribution and emission factor in a variety of units. An uncertainty analysis of all measurements, and a calculation to determine how each individual error propagates through the measurement train to yield an overall uncertainty is included in Part 6. Finally a summary of the relevant parameters is given in Part 7.

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Morrin, S.   "Oil Boiler Test Results - Morrin UCD". Associated datasets and digitial information objects connected to this resource are available at: Secure Archive For Environmental Research Data (SAFER) managed by Environmental Protection Agency Ireland https://eparesearch.epa.ie/safer/resource?id=ca487a64-28c3-11e1-ad3d-005056ae0019 (Last Accessed: 2024-10-11)

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SAFER-Data Display URL	https://eparesearch.epa.ie/safer/iso19115/display?isoID=249
Resource Keywords	Oil Boiler domestic test results PM NOx emissions performance
EPA/ERTDI/STRIVE Project Code	2007-CCRP-4.4.2
EPA/ERTDI/STRIVE Project Theme	Climate Change
Resource Availability:	Public-Open
Limitations on the use of this Resource
Number of Attached Files (Publicly and Openly Available for Download):	34
Project Start Date	Monday 1st March 2010 (01-03-2010)
Earliest Recorded Date within any attached datasets or digital objects	Monday 31st January 2011 (31-01-2011)
Most Recent Recorded Date within any attached datasets or digital objects	Monday 31st January 2011 (31-01-2011)
Published on SAFER	Saturday 17th December 2011 (17-12-2011)
Date of Last Edit	Monday 19th December 2011 at 14:25:46 (19-12-2011)
Datasets or Files Updated On	Monday 19th December 2011 at 14:25:46 (19-12-2011)

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Description of Geographical Characteristics of This Project or Dataset
Laboratory based. Particulate matter measured using a Dekati Low Pressure Impactor (DLPI). NOx and other gaseous emissions measured using a Testo 350 M/XL gas analyser. Boiler performance recorded using a National Instruments Data Acquisition System (DAQ). A typical domestic duty cycle was imposed on the boiler in the laboratory where controlled experiments coould be carried out to measure emissions concentration. Steady state operation as well as start-up and transient operation was examined. In addition the effect of air supply and burner nozzle wear on emissions was investigated

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