NUMERICAL AND EXPERIMENTAL INVESTIGATION OF ABOVE AND BELOW GROUND TEMPERATURE OF A PLANT IN A GREENHOUSE USING A THERMOELECTRIC MODULE

Alp Büyükbayraktar; Elif Öğüt

Article Details

NUMERICAL AND EXPERIMENTAL INVESTIGATION OF ABOVE AND BELOW GROUND TEMPERATURE OF A PLANT IN A GREENHOUSE USING A THERMOELECTRIC MODULE

Authors:

Alp Büyükbayraktar | Elif Öğüt

Publisher:

Isparta University of Applied Sciences

Main Topics:

Makine Mühendisliği (Diğer)

Journal:

Uluslararası Sürdürülebilir Mühendislik ve Teknoloji Dergisi Vol.8 Issue 2, pp.87-107

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001337800

pISSN:

2618-6055

Keywords:

Abstract:

 Enhanced production during winter hinges on the choice of fuel for attaining the requisite comfort temperature and the efficient operation of heating systems. Notably, a substantial yield boost is observed in plants utilizing soil heating systems. This study aims to employ Thermoelectric modules for soil heating. The strategy involves transferring heat to the contact material through the thermoelectric modules heating load. The heated contact material then warms the soil, and natural convection is utilized to heat the plant leaves. An innovative approach incorporates an aluminum block designed with a thermoelectric module to elevate root and seed germination temperatures, coupled with a cubic thermoelectric module placed on the soil to influence leaf temperature. The aluminum block shields against frost by raising the plants root temperature, while the cubic module minimizes frost on the leaves. This dual-pronged approach seeks a more efficient and economical greenhouse production by heating both the root zone and the interior. The study incorporates Computational Fluid Dynamics CFD analyses using Ansys Fluent software. Experimental parameters encompass soil type, contact material, environmental conditions, and plant root positioning. The aim of this study is to optimize the design, adjusting interrelated factors to achieve the ideal configuration and attain the optimum comfort temperature.Based on experiments and simulations, it has been observed that thermoelectric modules are effective in controlling internal greenhouse temperatures and significantly enhancing plant productivity. Heating the soil resulted in a 16.3-degree increase in root temperature, successfully protecting plant roots from frost events. Additionally, using cubic thermoelectric modules increased leaf temperature by 26 degrees, minimizing leaf frost occurrences. Moreover, test and analysis results indicated a relative error of 0.91 after 720 seconds, demonstrating the consistency of the analysis and experiments. These findings illustrate that thermoelectric modules provide an efficient and economical solution for greenhouse heating systems. Experimental data and simulation results confirm that thermoelectric module designs are more effective in greenhouse temperature control compared to traditional methods.

 Enhanced production during winter hinges on the choice of fuel for attaining the requisite comfort temperature and the efficient operation of heating systems. Notably, a substantial yield boost is observed in plants utilizing soil heating systems. This study aims to employ Thermoelectric modules for soil heating. The strategy involves transferring heat to the contact material through the thermoelectric modules heating load. The heated contact material then warms the soil, and natural convection is utilized to heat the plant leaves. An innovative approach incorporates an aluminum block designed with a thermoelectric module to elevate root and seed germination temperatures, coupled with a cubic thermoelectric module placed on the soil to influence leaf temperature. The aluminum block shields against frost by raising the plants root temperature, while the cubic module minimizes frost on the leaves. This dual-pronged approach seeks a more efficient and economical greenhouse production by heating both the root zone and the interior. The study incorporates Computational Fluid Dynamics CFD analyses using Ansys Fluent software. Experimental parameters encompass soil type, contact material, environmental conditions, and plant root positioning. The aim of this study is to optimize the design, adjusting interrelated factors to achieve the ideal configuration and attain the optimum comfort temperature.Based on experiments and simulations, it has been observed that thermoelectric modules are effective in controlling internal greenhouse temperatures and significantly enhancing plant productivity. Heating the soil resulted in a 16.3-degree increase in root temperature, successfully protecting plant roots from frost events. Additionally, using cubic thermoelectric modules increased leaf temperature by 26 degrees, minimizing leaf frost occurrences. Moreover, test and analysis results indicated a relative error of 0.91 after 720 seconds, demonstrating the consistency of the analysis and experiments. These findings illustrate that thermoelectric modules provide an efficient and economical solution for greenhouse heating systems. Experimental data and simulation results confirm that thermoelectric module designs are more effective in greenhouse temperature control compared to traditional methods.

 Enhanced production during winter hinges on the choice of fuel for attaining the requisite comfort temperature and the efficient operation of heating systems. Notably, a substantial yield boost is observed in plants utilizing soil heating systems. This study aims to employ Thermoelectric modules for soil heating. The strategy involves transferring heat to the contact material through the thermoelectric modules heating load. The heated contact material then warms the soil, and natural convection is utilized to heat the plant leaves. An innovative approach incorporates an aluminum block designed with a thermoelectric module to elevate root and seed germination temperatures, coupled with a cubic thermoelectric module placed on the soil to influence leaf temperature. The aluminum block shields against frost by raising the plants root temperature, while the cubic module minimizes frost on the leaves. This dual-pronged approach seeks a more efficient and economical greenhouse production by heating both the root zone and the interior. The study incorporates Computational Fluid Dynamics CFD analyses using Ansys Fluent software. Experimental parameters encompass soil type, contact material, environmental conditions, and plant root positioning. The aim of this study is to optimize the design, adjusting interrelated factors to achieve the ideal configuration and attain the optimum comfort temperature.Based on experiments and simulations, it has been observed that thermoelectric modules are effective in controlling internal greenhouse temperatures and significantly enhancing plant productivity. Heating the soil resulted in a 16.3-degree increase in root temperature, successfully protecting plant roots from frost events. Additionally, using cubic thermoelectric modules increased leaf temperature by 26 degrees, minimizing leaf frost occurrences. Moreover, test and analysis results indicated a relative error of 0.91 after 720 seconds, demonstrating the consistency of the analysis and experiments. These findings illustrate that thermoelectric modules provide an efficient and economical solution for greenhouse heating systems. Experimental data and simulation results confirm that thermoelectric module designs are more effective in greenhouse temperature control compared to traditional methods.

 Seralarda kış aylarında üretimi artırmadaki en önemli faktör, sera içindeki bitkinin olgunlaşıp büyümesini sağlayan, gerekli konfor sıcaklığına ulaşmak için kullanılan yakıt ile ısıtma sistemlerinin işletme ve tasarım maliyetleridir. Toprak ısıtma sistemleri ile bitkilerde önemli ölçüde verim artışı gözlemlenmiştir. Bu çalışmada, Termoelektrik modül ile toprağın ısıtılması amaçlanmaktadır. Termoelektrik modülün ısıtma yükünden yararlanılıp önce kontak malzemeye ısı aktarmasını, sonra da ısınan kontak malzemesinin toprağı ısıtması ve doğal taşınım etkisiyle bitki yapraklarının ısıtılması amaçlanmıştır. Farklı bir yaklaşımla termoelektrik modül kullanarak alüminyum blok tasarlanmış olup bitkinin kök ve tohum çimlenme sıcaklığı arttırması amaçlanmıştır, bitkinin yaprak sıcaklığı ise kübik bir termoelektrik modül hazırlayarak toprağın üstüne yerleştirilerek elde edilmiştir. Tasarım alüminyum blok bitkinin kök sıcaklığının arttırarak don olayından koruma sağlarken kübik termoelektrik modül bitki yapraklarındaki don olayını azaltarak kök ve sera içi ısınmayla daha verimli ve çok daha ekonomik bir üretim amaçlanmaktadır. Çalışmada Hesaplamalı Akışkanlar Dinamiği HAD analizleri Ansys Fluent yazılımı kullanarak elde edilmiştir. Yapılan deneysel çalışmada toprak tipi, kontak malzemesi, çevre ve ortam koşulları, bitki kök konumu gibi parametreler incelenmiştir. Birbiri ile ilişkili olan bu terimler de değişiklik yapılarak ideal tasarımın elde edilip optimum konfor sıcaklığına ulaşması bu çalışmanın ana amacıdır. Yapılan deneyler ve simülasyonlar sonucunda, termoelektrik modüllerin sera içi sıcaklık kontrolünde etkili olduğu ve bitki verimliliğini önemli ölçüde artırdığı gözlemlenmiştir. Toprağın ısıtılmasıyla kök sıcaklığında 16.3 derece bir artış sağlanmış ve bitki köklerinin don olayından korunması başarılmıştır. Ayrıca, kübik termoelektrik modül kullanımıyla bitki yaprak sıcaklığı da 26 derece artırılarak, yaprak don olayları minimize edilmiştir. Bununla birlikte yapılan test ve analiz sonuçlarında 720 saniyenin sonunda 0.91 bir bağıl hata tespit edilmiş olup analiz ve yapılan deneyin tutarlılığı gösterilmiştir. Bu sonuçlar, termoelektrik modüllerin sera içi ısıtma sistemleri için verimli ve ekonomik bir çözüm sunduğunu göstermektedir. Deneysel veriler ve simülasyon sonuçları, termoelektrik modül tasarımının sera içi sıcaklık kontrolünde geleneksel yöntemlere göre daha etkin olduğunu kanıtlamaktadır.

Article Details

NUMERICAL AND EXPERIMENTAL INVESTIGATION OF ABOVE AND BELOW GROUND TEMPERATURE OF A PLANT IN A GREENHOUSE USING A THERMOELECTRIC MODULE

Authors:

Alp Büyükbayraktar | Elif Öğüt

Publisher:

Isparta University of Applied Sciences

Main Topics:

Makine Mühendisliği (Diğer)

Journal:

Uluslararası Sürdürülebilir Mühendislik ve Teknoloji Dergisi Vol.8 Issue 2, pp.87-107

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001337800

pISSN:

2618-6055

Ansys Fluent

Peltier

Greenhouse

Thermoelectric ModuleAnsys Fluent

Peltier

Sera

Termoelektrik Modül

Issues

Article Details

Authors: Alp Büyükbayraktar | Elif Öğüt

Publisher: Isparta University of Applied Sciences

Main Topics: Makine Mühendisliği (Diğer)

Journal: Uluslararası Sürdürülebilir Mühendislik ve Teknoloji Dergisi Vol.8 Issue 2, pp.87-107

Document Type: Article

Publication Date: 12/2024

Document Language: Turkish

Document ID (Org No.): 2001337800

pISSN: 2618-6055

Issues

Authors:

Alp Büyükbayraktar | Elif Öğüt

Publisher:

Isparta University of Applied Sciences

Main Topics:

Makine Mühendisliği (Diğer)

Journal:

Uluslararası Sürdürülebilir Mühendislik ve Teknoloji Dergisi Vol.8 Issue 2, pp.87-107

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001337800

pISSN:

2618-6055