An experimental investigation of the effect of smoke tube configuration on the performance and emission characteristics of pellet-fuelled boilers

Autor: Bilal Sungur, Bahattin Topaloglu
Přispěvatelé: Ondokuz Mayıs Üniversitesi
Jazyk: angličtina
Rok vydání: 2019
Předmět:
DOI: 10.1016/j.renene.2019.05.006
Popis: Sungur, Bilal/0000-0002-7320-1490 WOS: 000475999200012 The main goal of this study is to investigate the effect of boiler design by smoke tube addition on combustion characteristics and emissions in a small scale pellet boiler. In this context, flame/smoke tube pellet-fuelled boilers with two different constructions were designed, manufactured and tested. In the design of the boilers, the first passes of gases without smoke tubes (Boiler-1) and with smoke tubes (Boiler-2) were considered. The effect of different gas passes of the boilers on flame temperature, flue gas temperature, thermal efficiency, and flue gas emissions of O-2, CO, CO2 and NOx. were investigated and results were compared with each other. The results showed that adding smoke tubes to the first pass of the boiler decreased the average flue gas temperatures from 87.6 degrees C to 76.9 degrees C. The thermal efficiency of the Boiler-2 geometry reached a value of 92.3% and was nearly 1.3% higher than the Boiler-1 geometry. CO emissions increased up to 205 ppm from 166 to 371 ppm by addition of smoke tubes to the first pass of the Boiler-1. It was observed that smoke tubes addition to the first pass of the boiler did not affect the NOx emissions significantly, which were about 45-47 ppm. (C) 2019 Elsevier Ltd. All rights reserved. Ifyil/Kuzey Kardelen Heat Industry Company The authors would like to express their appreciation to the Ifyil/Kuzey Kardelen Heat Industry Company for supports provided to this experimental study.
Databáze: OpenAIRE