Temperature Measurement in WTE Boilers Using Suction Pyrometers
The temperature of the flue-gas in the post combustion zone of a waste to energy (WTE) plant has to be maintained within a fairly narrow range of values, the minimum of which is prescribed by the European Waste Directive 2000/76/CE, whereas the maximum value must be such as to ensure the preservatio...
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-11-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/13/11/15633 |
| _version_ | 1811277972873674752 |
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| author | Fabio Rinaldi Behzad Najafi |
| author_facet | Fabio Rinaldi Behzad Najafi |
| author_sort | Fabio Rinaldi |
| collection | DOAJ |
| description | The temperature of the flue-gas in the post combustion zone of a waste to energy (WTE) plant has to be maintained within a fairly narrow range of values, the minimum of which is prescribed by the European Waste Directive 2000/76/CE, whereas the maximum value must be such as to ensure the preservation of the materials and the energy efficiency of the plant. A high degree of accuracy in measuring and controlling the aforementioned temperature is therefore required. In almost the totality of WTE plants this measurement process is carried out by using practical industrial thermometers, such as bare thermocouples and infrared radiation (IR) pyrometers, even if affected by different physical contributions which can make the gas temperature measurements incorrect. The objective of this paper is to analyze errors and uncertainties that can arise when using a bare thermocouple or an IR pyrometer in a WTE plant and to provide a method for the in situ calibration of these industrial sensors through the use of suction pyrometers. The paper describes principle of operation, design, and uncertainty contributions of suction pyrometers, it also provides the best estimation of the flue-gas temperature in the post combustion zone of a WTE plant and the estimation of its expanded uncertainty. |
| first_indexed | 2024-04-13T00:27:28Z |
| format | Article |
| id | doaj.art-1285a049db794659952cc1aba04db741 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T00:27:28Z |
| publishDate | 2013-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-1285a049db794659952cc1aba04db7412022-12-22T03:10:34ZengMDPI AGSensors1424-82202013-11-011311156331565510.3390/s131115633Temperature Measurement in WTE Boilers Using Suction PyrometersFabio RinaldiBehzad NajafiThe temperature of the flue-gas in the post combustion zone of a waste to energy (WTE) plant has to be maintained within a fairly narrow range of values, the minimum of which is prescribed by the European Waste Directive 2000/76/CE, whereas the maximum value must be such as to ensure the preservation of the materials and the energy efficiency of the plant. A high degree of accuracy in measuring and controlling the aforementioned temperature is therefore required. In almost the totality of WTE plants this measurement process is carried out by using practical industrial thermometers, such as bare thermocouples and infrared radiation (IR) pyrometers, even if affected by different physical contributions which can make the gas temperature measurements incorrect. The objective of this paper is to analyze errors and uncertainties that can arise when using a bare thermocouple or an IR pyrometer in a WTE plant and to provide a method for the in situ calibration of these industrial sensors through the use of suction pyrometers. The paper describes principle of operation, design, and uncertainty contributions of suction pyrometers, it also provides the best estimation of the flue-gas temperature in the post combustion zone of a WTE plant and the estimation of its expanded uncertainty.http://www.mdpi.com/1424-8220/13/11/15633temperature measurementwaste-to-energy plantsuncertaintysuction pyrometers |
| spellingShingle | Fabio Rinaldi Behzad Najafi Temperature Measurement in WTE Boilers Using Suction Pyrometers Sensors temperature measurement waste-to-energy plants uncertainty suction pyrometers |
| title | Temperature Measurement in WTE Boilers Using Suction Pyrometers |
| title_full | Temperature Measurement in WTE Boilers Using Suction Pyrometers |
| title_fullStr | Temperature Measurement in WTE Boilers Using Suction Pyrometers |
| title_full_unstemmed | Temperature Measurement in WTE Boilers Using Suction Pyrometers |
| title_short | Temperature Measurement in WTE Boilers Using Suction Pyrometers |
| title_sort | temperature measurement in wte boilers using suction pyrometers |
| topic | temperature measurement waste-to-energy plants uncertainty suction pyrometers |
| url | http://www.mdpi.com/1424-8220/13/11/15633 |
| work_keys_str_mv | AT fabiorinaldi temperaturemeasurementinwteboilersusingsuctionpyrometers AT behzadnajafi temperaturemeasurementinwteboilersusingsuctionpyrometers |