Energy and Exergy Analysis of Palm Tree Pruning Residues Gasification

Birol Kayişoğlu

Makale detayları

Energy and Exergy Analysis of Palm Tree Pruning Residues Gasification

Yazarlar:

Birol Kayişoğlu

Yayıncı:

Ankara University

Ana Başlıklar:

Engineering

Dergi:

Journal of Agricultural Sciences Vol.29 Issue 1, pp.122-129

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001282528

pISSN:

1300-7580

Anahtar kelimeler:

Özet:

 Gasification is the process of obtaining syngas containing combustible gases such as H2, CO and small amounts of CH4 from biomass by performing partial combustion with a limited oxygen supply or with the help of suitable oxidants such as CO2 and water vapor. The efficiency of the gasification process is the most important parameter that determines the success of the system. In this study, the performance of the system in the gasification of palm pruning residues was evaluated by energy and exergy analysis methods. The gasification process was carried out at 7.6 Nm3h and 10.2 Nm3h air flow rates in the laboratory type fixed bed downdraft gasification unit manufactured in the Biosystems Engineering Department. The lower heating value of the syngas obtained as a result of gasification was found to be 4.09 MJNm3 at 7.6 Nm3h air flow rate and 3.76 MJNm3 at 10.2 Nm3h air flow rate. It has been observed that the lower heating value of the syngas is lower at high air flow rate. Energy efficiencies of the gasification system at 7.6 and 10.2 Nm3h air flow rate were calculated as 47.6 and 52.8, and exergy efficiencies were calculated as 43.7 and 48.1, respectively. Exergy efficiencies were found to be lower than energy efficiencies in both air flow rates. However, as the air flow rate increased, the energy and exergy efficiencies also increased. The results obtained are similar to the results of previous studies on gasification of biomass.

 Gasification is the process of obtaining syngas containing combustible gases such as H2, CO and small amounts of CH4 from biomass by performing partial combustion with a limited oxygen supply or with the help of suitable oxidants such as CO2 and water vapor. The efficiency of the gasification process is the most important parameter that determines the success of the system. In this study, the performance of the system in the gasification of palm pruning residues was evaluated by energy and exergy analysis methods. The gasification process was carried out at 7.6 Nm3h and 10.2 Nm3h air flow rates in the laboratory type fixed bed downdraft gasification unit manufactured in the Biosystems Engineering Department. The lower heating value of the syngas obtained as a result of gasification was found to be 4.09 MJNm3 at 7.6 Nm3h air flow rate and 3.76 MJNm3 at 10.2 Nm3h air flow rate. It has been observed that the lower heating value of the syngas is lower at high air flow rate. Energy efficiencies of the gasification system at 7.6 and 10.2 Nm3h air flow rate were calculated as 47.6 and 52.8, and exergy efficiencies were calculated as 43.7 and 48.1, respectively. Exergy efficiencies were found to be lower than energy efficiencies in both air flow rates. However, as the air flow rate increased, the energy and exergy efficiencies also increased. The results obtained are similar to the results of previous studies on gasification of biomass.

 Gasification is the process of obtaining syngas containing combustible gases such as H2, CO and small amounts of CH4 from biomass by performing partial combustion with a limited oxygen supply or with the help of suitable oxidants such as CO2 and water vapor. The efficiency of the gasification process is the most important parameter that determines the success of the system. In this study, the performance of the system in the gasification of palm pruning residues was evaluated by energy and exergy analysis methods. The gasification process was carried out at 7.6 Nm3h and 10.2 Nm3h air flow rates in the laboratory type fixed bed downdraft gasification unit manufactured in the Biosystems Engineering Department. The lower heating value of the syngas obtained as a result of gasification was found to be 4.09 MJNm3 at 7.6 Nm3h air flow rate and 3.76 MJNm3 at 10.2 Nm3h air flow rate. It has been observed that the lower heating value of the syngas is lower at high air flow rate. Energy efficiencies of the gasification system at 7.6 and 10.2 Nm3h air flow rate were calculated as 47.6 and 52.8, and exergy efficiencies were calculated as 43.7 and 48.1, respectively. Exergy efficiencies were found to be lower than energy efficiencies in both air flow rates. However, as the air flow rate increased, the energy and exergy efficiencies also increased. The results obtained are similar to the results of previous studies on gasification of biomass.

 Gasification is the process of obtaining syngas containing combustible gases such as H2, CO and small amounts of CH4 from biomass by performing partial combustion with a limited oxygen supply or with the help of suitable oxidants such as CO2 and water vapor. The efficiency of the gasification process is the most important parameter that determines the success of the system. In this study, the performance of the system in the gasification of palm pruning residues was evaluated by energy and exergy analysis methods. The gasification process was carried out at 7.6 Nm3h and 10.2 Nm3h air flow rates in the laboratory type fixed bed downdraft gasification unit manufactured in the Biosystems Engineering Department. The lower heating value of the syngas obtained as a result of gasification was found to be 4.09 MJNm3 at 7.6 Nm3h air flow rate and 3.76 MJNm3 at 10.2 Nm3h air flow rate. It has been observed that the lower heating value of the syngas is lower at high air flow rate. Energy efficiencies of the gasification system at 7.6 and 10.2 Nm3h air flow rate were calculated as 47.6 and 52.8, and exergy efficiencies were calculated as 43.7 and 48.1, respectively. Exergy efficiencies were found to be lower than energy efficiencies in both air flow rates. However, as the air flow rate increased, the energy and exergy efficiencies also increased. The results obtained are similar to the results of previous studies on gasification of biomass.

Makale detayları

Energy and Exergy Analysis of Palm Tree Pruning Residues Gasification

Yazarlar:

Birol Kayişoğlu

Yayıncı:

Ankara University

Ana Başlıklar:

Engineering

Dergi:

Journal of Agricultural Sciences Vol.29 Issue 1, pp.122-129

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001282528

pISSN:

1300-7580

Biomass

Syngas

heating value

irreversibility

partial combustion

LHV

Sayı

Makale detayları

Energy and Exergy Analysis of Palm Tree Pruning Residues Gasification

Yazarlar: Birol Kayişoğlu

Yayıncı: Ankara University

Ana Başlıklar: Engineering

Dergi: Journal of Agricultural Sciences Vol.29 Issue 1, pp.122-129

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001282528

pISSN: 1300-7580

Biomass

Syngas

heating value

irreversibility

partial combustion

LHV

Sayı

Yazarlar:

Birol Kayişoğlu

Yayıncı:

Ankara University

Ana Başlıklar:

Engineering

Dergi:

Journal of Agricultural Sciences Vol.29 Issue 1, pp.122-129

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001282528

pISSN:

1300-7580