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97503

EXPERIMENTAL STUDY ON A SOLAR-HEATED BIOGAS DIGESTER USING SHALLOW SOLAR POND IN COLD CLIMATE

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Last updated: 26 Dec 2024

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Biosystems Engineering

Abstract

In northern Egypt, the ambient temperature almost below 20°C during winter months, which is insufficient for the anaerobic digestion (AD) and affecting negatively the biogas yield, especially for the floating dome digester(Indian model) due to the heat losses through the gas holder. Since the slurry temperature is a crucial factor for the AD rate, this investigation aims to heat a concrete pre-constructed floating dome biogas digester (Family-scale digester) during winter season for enhancing the fermentation rate by utilizing the extracted heat of integrated shallow solar pond (SSP) using dairy cattle dung comparing to a previous work of un-heated digester. The solar-heated digester was evaluated under the same operating conditions of the un-heated digester except the slurry temperature and similar values of both the solar radiation intensity and ambient temperature during 30 days without feeding as a digestion time taking into consideration the slurry temperature, pH, daily, cumulative (m3/month) and specific (m3/kg VS) biogas yield as well as the total net gained energy. The obtained results revealed that, the average slurry temperature of the solar-heated biogas digester system increased by 12.3°C which led to increase the average daily, cumulative and specific biogas yield by about 129 % higher than the un-heated digester with average methane content of 70% and total net gained energy of 553.1 MJ/month. 

DOI

10.21608/mjae.2017.97503

Keywords

anaerobic digestion, winter season, shallow solar pond, cattle dung, solar heated-biogas digester, biogas yield

Authors

First Name

M.K.

Last Name

Abd El-Wahab

MiddleName

-

Affiliation

Professor Emeritus, Agric. Eng. Dept., Fac. of Agric., Zagazig Univ., Egypt.

Email

-

City

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Orcid

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First Name

M.M.A

Last Name

Hassan

MiddleName

-

Affiliation

Assistant. Prof., Agric. Eng. Dep., Fac. of Agric., Zagazig Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

M.A.

Last Name

Tawfik

MiddleName

-

Affiliation

Assistant. Prof., Agric. Eng. Dep., Fac. of Agric., Zagazig Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

W. E.

Last Name

Abd Allah

MiddleName

-

Affiliation

Lecturer, Agric. Eng. Dept., Fac. of Agric., Zagazig Univ., Egypt.

Email

-

City

-

Orcid

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Volume

34

Article Issue

3

Related Issue

14723

Issue Date

2017-07-01

Receive Date

2020-06-21

Publish Date

2017-07-01

Page Start

1,475

Page End

1,494

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 34_Issue 3_Pages 1475-1494.pdf

PDF . 886.5kB

Link

https://mjae.journals.ekb.eg/article_97503.html

Detail API

https://mjae.journals.ekb.eg/service?article_code=97503

Order

21

Type

Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

https://mjae.journals.ekb.eg/

MainTitle

EXPERIMENTAL STUDY ON A SOLAR-HEATED BIOGAS DIGESTER USING SHALLOW SOLAR POND IN COLD CLIMATE

Details

Type

Article

Created At

23 Jan 2023