A computational fluid dynamics ınvestigation of the utilization of waste biomass fuels for syngas production in a downdraft reactor

Merdin Danışmaz

Makale detayları

A computational fluid dynamics ınvestigation of the utilization of waste biomass fuels for syngas production in a downdraft reactor

Yazarlar:

Merdin Danışmaz

Yayıncı:

Gumushane University

Ana Başlıklar:

Temel ve Teorik Akışkanlar Dinamiği | Akışkan Mekaniği ve Termal Mühendislik (Diğer)

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 4, pp.1074-1087

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333145

pISSN:

2146-538X

Anahtar kelimeler:

Özet:

 Biomass gasification, one of the gasification technologies, is among the technologies being developed for environmentally friendly and clean energy production of waste non-forest wood products and is a common subject of study in this field. In this study, gasification of three different biomasses pine wood, pinecone, and hazelnut shell in a downdraft reactor was analyzed and simulated. Ansys-Fluent commercial software version 2020 was used for the analysis and calculations. A small-scale gasification reactor was modeled, and fuel and air feed conditions were determined. The air-fuel ratio required for gasification was analyzed with different equivalence ratios 0,15-0,35 to demonstrate the difference from stoichiometric combustion. According to the reactor gas temperature distribution and the content of the synthesis gas produced, it was determined that the equivalence ratio of 0,20 is suitable for a gasifier of this scale. By reaching temperatures above 900 C in the reactor, the contours of CO, H2O and CH4 combustibles in the synthesis gas content in the reactor were shown and its proportions in the mixture were determined. The results were found to be consistent with the values in scientific literature. It was revealed that waste biomass can be used in clean energy production, and it is possible to develop fuel and capacity specific gasification reactors with CFD analysis.

 Biomass gasification, one of the gasification technologies, is among the technologies being developed for environmentally friendly and clean energy production of waste non-forest wood products and is a common subject of study in this field. In this study, gasification of three different biomasses pine wood, pinecone, and hazelnut shell in a downdraft reactor was analyzed and simulated. Ansys-Fluent commercial software version 2020 was used for the analysis and calculations. A small-scale gasification reactor was modeled, and fuel and air feed conditions were determined. The air-fuel ratio required for gasification was analyzed with different equivalence ratios 0,15-0,35 to demonstrate the difference from stoichiometric combustion. According to the reactor gas temperature distribution and the content of the synthesis gas produced, it was determined that the equivalence ratio of 0,20 is suitable for a gasifier of this scale. By reaching temperatures above 900 C in the reactor, the contours of CO, H2O and CH4 combustibles in the synthesis gas content in the reactor were shown and its proportions in the mixture were determined. The results were found to be consistent with the values in scientific literature. It was revealed that waste biomass can be used in clean energy production, and it is possible to develop fuel and capacity specific gasification reactors with CFD analysis.

 Biomass gasification, one of the gasification technologies, is among the technologies being developed for environmentally friendly and clean energy production of waste non-forest wood products and is a common subject of study in this field. In this study, gasification of three different biomasses pine wood, pinecone, and hazelnut shell in a downdraft reactor was analyzed and simulated. Ansys-Fluent commercial software version 2020 was used for the analysis and calculations. A small-scale gasification reactor was modeled, and fuel and air feed conditions were determined. The air-fuel ratio required for gasification was analyzed with different equivalence ratios 0,15-0,35 to demonstrate the difference from stoichiometric combustion. According to the reactor gas temperature distribution and the content of the synthesis gas produced, it was determined that the equivalence ratio of 0,20 is suitable for a gasifier of this scale. By reaching temperatures above 900 C in the reactor, the contours of CO, H2O and CH4 combustibles in the synthesis gas content in the reactor were shown and its proportions in the mixture were determined. The results were found to be consistent with the values in scientific literature. It was revealed that waste biomass can be used in clean energy production, and it is possible to develop fuel and capacity specific gasification reactors with CFD analysis.

 Gazlaştırma teknolojilerinden biri olan biyokütle gazlaştırması, atık orman dışı odun ürünlerinin çevreci ve temiz enerji üretiminde kullanımı amacıyla geliştirilmekte olan teknolojilerden biridir ve bu alanda yaygın çalışma konuları arasındadır. Bu çalışmada, üç farklı biyokütlenin Çam odunu, çam kozalağı, fındık kabuğu aşağı akışlı bir reaktördeki gazlaştırma analiz ve simülasyonu yapıldı. Analiz ve hesaplamalarda Ansys-Fluent ticari yazılımının 2020 versiyonu kullanıldı. Küçük ölçekli bir gazlaştırma reaktörü modellenerek yakıt ve hava besleme koşulları belirlendi. Gazlaştırma için gerekli hava-yakıt oranının, stokiyometrik yanmadan farklılığını ortaya koymak için farklı eşdeğerlik oranlarıyla 0,15-0,35 analizler yapıldı. Reaktördeki gazın sıcaklık dağılımı ve üretilen sentez gazının içeriğine göre 0,20 eşdeğerlik oranı değerinin bu ölçekte bir gazlaştırıcı için uygun olduğu belirlendi. Reaktör içerisinde 900 Cnin üzerinde sıcaklık değerlerine ulaşılarak sentez gazı içeriğindeki CO, H2O ve CH4 yanıcılarının reaktör içerisindeki kontürleri gösterildi ve karışımdaki oranları belirlendi. Bulguların bilimsel literatürdeki değerlerle uyumlu sonuçlar içerdiği görüldü. Atık biyokütlelerin temiz enerji üretiminde kullanılabileceği ve ayrıca, HAD analiziyle yakıt ve kapasite özelinde gazlaştırma reaktörlerinin geliştirilmesinin mümkün olduğu ortaya kondu.

Makale detayları

A computational fluid dynamics ınvestigation of the utilization of waste biomass fuels for syngas production in a downdraft reactor

Yazarlar:

Merdin Danışmaz

Yayıncı:

Gumushane University

Ana Başlıklar:

Temel ve Teorik Akışkanlar Dinamiği | Akışkan Mekaniği ve Termal Mühendislik (Diğer)

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 4, pp.1074-1087

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333145

pISSN:

2146-538X

Downdraft

Biomass

Gasification

CFD

SyngasAşağı akışlı

Biyokütle

Gazifikasyon

HAD

Sentez gazı

Sayı

Makale detayları

Yazarlar: Merdin Danışmaz

Yayıncı: Gumushane University

Ana Başlıklar: Temel ve Teorik Akışkanlar Dinamiği | Akışkan Mekaniği ve Termal Mühendislik (Diğer)

Dergi: Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 4, pp.1074-1087

Belge Tipi: Makale

Yayın Tarihi: 12/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001333145

pISSN: 2146-538X

Sayı

Yazarlar:

Merdin Danışmaz

Yayıncı:

Gumushane University

Ana Başlıklar:

Temel ve Teorik Akışkanlar Dinamiği | Akışkan Mekaniği ve Termal Mühendislik (Diğer)

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 4, pp.1074-1087

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333145

pISSN:

2146-538X