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99131

THERMAL PERFORMANCE FOR GREENHOUSE HEATING BY USING EARTH-TUBE HEAT EXCHANGER DURING WINTER SEASON

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Last updated: 04 Jan 2025

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Abstract

In this research work an attempt has been made to analysis the thermal performance of the earth-tube heat exchanger (ETHE) during winter season of 2012-2013 (December to March). The experimental work was executed in the experimental farm of Faculty of Agriculture, Suez Canal University, Ismailia Governorate, Egypt (Latitude angle of 30.62ºN, Longitude angle of 32.27ºE, and mean altitude above sea level of 5 m). The ETHE technique was used to utilize the stability of deep soil temperature for worming the indoor air of greenhouse cucumber during winter season, and reducing the indoor air temperature during the summer season. A computer simulation model has been developed and used based on MATLAB program to determine the depth at which the soil temperature is stabilized. The obtained data showed that, the depth at which the soil temperature is stabilized was achieved at 3 m deep. The overall thermal efficiency of the ETHE system during winter season (heating process) was 72.90 %. Due to the microclimatic conditions (air temperature and air relative humidity) were at and around the desired level, the growth rate, flowering rate, fruit set rate, and fresh yield of cucumber crop were at high rates and good quality. Data of the computer simulation model of the indoor air and soil temperatures were found to be very closest to that measured.

DOI

10.21608/mjae.2014.99131

Keywords

Greenhouses, Earth-tube heat exchanger, Simulation Model, soil temperature

Authors

First Name

S. M.

Last Name

Abd El- Latif

MiddleName

-

Affiliation

Agricultural Engineering Department, Faculty of Agriculture, El- Mansoura University, El- Mansoura, Egypt.

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First Name

S. M.

Last Name

Radwan

MiddleName

-

Affiliation

Agricultural Engineering Department, Faculty of Agriculture, Suez-Canal University, Ismailia, Egypt.

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City

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Orcid

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First Name

A. A.

Last Name

Hassanain

MiddleName

-

Affiliation

Agricultural Engineering Department, Faculty of Agriculture, Suez-Canal University, Ismailia, Egypt.

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City

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Orcid

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First Name

I. H.

Last Name

El-Sheikh

MiddleName

-

Affiliation

Agricultural Engineering Department, Faculty of Agriculture, Suez-Canal University, Ismailia, Egypt.

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Volume

31

Article Issue

3

Related Issue

14934

Issue Date

2014-07-01

Receive Date

2020-06-29

Publish Date

2014-07-01

Page Start

1,095

Page End

1,120

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 31_Issue 3_Pages 1095-1120.pdf

PDF . 1.3MB

Link

https://mjae.journals.ekb.eg/article_99131.html

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https://mjae.journals.ekb.eg/service?article_code=99131

Order

21

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Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

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

MainTitle

THERMAL PERFORMANCE FOR GREENHOUSE HEATING BY USING EARTH-TUBE HEAT EXCHANGER DURING WINTER SEASON

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Article

Created At

23 Jan 2023