Energy, Economic and Environmental Analysis of Flue Gas Heat Recovery for Coal-Fired Heat-Only Boilers

Yang Han, Haichao Wang*, Lin Duanmu, Xiangli Li, Illka Haavisto

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

Abstrakti

District heating in China is growing very fast, but the heat production is still and will be mainly based on coal in the near future. Therefore, it is necessary to improve the efficiency of coal-fired heat production; one important way for this is to recover the waste heat in the flue gas. This paper analyzes the influencing factors for flue gas heat recovery and proposes the use of a flue gas scrubber to recover the flue gas in a coal-fired heat-only boiler after desulfurizer. We apply this technology to a heat-only boiler in Dalian city and discuss the feasibility from the perspectives of energy, economy and environmental aspects. The results show that the maximum heat recovery rate is about 7% if the flue gas can be cooled down to 39 ℃, and the payback time of the scrubber system is about 4 years.

AlkuperäiskieliEnglanti
OtsikkoProceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019 - Volume III
AlaotsikkoBuildings and Energy
ToimittajatZhaojun Wang, Fang Wang, Peng Wang, Chao Shen, Jing Liu, Yingxin Zhu
KustantajaSpringer
Sivut513-521
Sivumäärä9
ISBN (elektroninen)978-981-13-9528-4
ISBN (painettu)9789811395277
DOI - pysyväislinkit
TilaJulkaistu - 20 maalisk. 2020
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational Symposium on Heating, Ventilation and Air Conditioning - Harbin, Kiina
Kesto: 12 heinäk. 201915 heinäk. 2019
Konferenssinumero: 11

Julkaisusarja

NimiEnvironmental Science and Engineering
ISSN (painettu)1863-5520
ISSN (elektroninen)1863-5539

Conference

ConferenceInternational Symposium on Heating, Ventilation and Air Conditioning
LyhennettäISHVAC
Maa/AlueKiina
KaupunkiHarbin
Ajanjakso12/07/201915/07/2019

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