Modeling the optimal condition for drying rumen contents using a solar greenhouse dryer
The ruminal content is a biomass waste obtained from the benefit of cattle. This biomass can be used as a fuel for generating part of the thermal energy that is required in the slaughterhouse processes. For this purpose, the ruminal content must be subjected to several pretreatments to facilitate it...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-02-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X21008418 |
| _version_ | 1818975810356248576 |
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| author | Andrés Colorado Oswald Morales Diana Ossa Andrés Amell Edwin Chica |
| author_facet | Andrés Colorado Oswald Morales Diana Ossa Andrés Amell Edwin Chica |
| author_sort | Andrés Colorado |
| collection | DOAJ |
| description | The ruminal content is a biomass waste obtained from the benefit of cattle. This biomass can be used as a fuel for generating part of the thermal energy that is required in the slaughterhouse processes. For this purpose, the ruminal content must be subjected to several pretreatments to facilitate its use as a fuel. The combustion efficiency of the ruminal content is affected by the particle size and the size distribution, as well as the moisture content. The ruminal content has a high moisture content that must be reduced from around 60% to values below 15% (by mass) within a few days so that the conversion efficiency and heating value are not affected. To dry the rumen content, low-cost natural drying systems can be utilized. A numerical approach for the solar greenhouse dryer performance was analyzed for typical local solar irradiation and natural convection conditions, at the greenhouse site of installation. To analyze the rumen content, at variable drying temperatures ranging from 40 °C to 70 °C, a thin layer model was used. Within the temperature range evaluated, the ruminal content effective diffusivity varied from 1.6 × 10−13 to 5.6 × 10−13 m2/s. The dryer was designed as a semi-cylindrical shape with a loading capacity of about 10 000 kg. A set of ordinary differential equations was formulated for modeling and simulating the heat transfer and drying phenomena inside the greenhouse dryer. The method of finite differences was used for solving the system of equations. The estimated drying time of the ruminal content was around 6 days (d) and the final product moisture was 14.10%. |
| first_indexed | 2024-12-20T16:01:52Z |
| format | Article |
| id | doaj.art-56db0d133bcc4b9099a9797cd461e953 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-12-20T16:01:52Z |
| publishDate | 2022-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-56db0d133bcc4b9099a9797cd461e9532022-12-21T19:34:14ZengElsevierCase Studies in Thermal Engineering2214-157X2022-02-0130101678Modeling the optimal condition for drying rumen contents using a solar greenhouse dryerAndrés Colorado0Oswald Morales1Diana Ossa2Andrés Amell3Edwin Chica4Grupo de Ciencia y Tecnología del Gas y Uso Racional de la Energía (GASURE), Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Antioquia, UdeA, Calle 70 No 52-21, Medellín, 050010, ColombiaFrigosinu S.A, Calle 29 No. 36A -54, Montería, ColombiaFacultad de Ingeniería, Universidad de Córdoba, Carrera 6 No. 77-305, Montería, ColombiaGrupo de Ciencia y Tecnología del Gas y Uso Racional de la Energía (GASURE), Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Antioquia, UdeA, Calle 70 No 52-21, Medellín, 050010, ColombiaGrupo de Energía Alternativa, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Antioquia, UdeA, Calle 70 No 52-21, Medellín, 050010, Colombia; Corresponding author.The ruminal content is a biomass waste obtained from the benefit of cattle. This biomass can be used as a fuel for generating part of the thermal energy that is required in the slaughterhouse processes. For this purpose, the ruminal content must be subjected to several pretreatments to facilitate its use as a fuel. The combustion efficiency of the ruminal content is affected by the particle size and the size distribution, as well as the moisture content. The ruminal content has a high moisture content that must be reduced from around 60% to values below 15% (by mass) within a few days so that the conversion efficiency and heating value are not affected. To dry the rumen content, low-cost natural drying systems can be utilized. A numerical approach for the solar greenhouse dryer performance was analyzed for typical local solar irradiation and natural convection conditions, at the greenhouse site of installation. To analyze the rumen content, at variable drying temperatures ranging from 40 °C to 70 °C, a thin layer model was used. Within the temperature range evaluated, the ruminal content effective diffusivity varied from 1.6 × 10−13 to 5.6 × 10−13 m2/s. The dryer was designed as a semi-cylindrical shape with a loading capacity of about 10 000 kg. A set of ordinary differential equations was formulated for modeling and simulating the heat transfer and drying phenomena inside the greenhouse dryer. The method of finite differences was used for solving the system of equations. The estimated drying time of the ruminal content was around 6 days (d) and the final product moisture was 14.10%.http://www.sciencedirect.com/science/article/pii/S2214157X21008418MoistureRumen contentSlaughterhouse by-productsBiomass dryingDrying rate |
| spellingShingle | Andrés Colorado Oswald Morales Diana Ossa Andrés Amell Edwin Chica Modeling the optimal condition for drying rumen contents using a solar greenhouse dryer Case Studies in Thermal Engineering Moisture Rumen content Slaughterhouse by-products Biomass drying Drying rate |
| title | Modeling the optimal condition for drying rumen contents using a solar greenhouse dryer |
| title_full | Modeling the optimal condition for drying rumen contents using a solar greenhouse dryer |
| title_fullStr | Modeling the optimal condition for drying rumen contents using a solar greenhouse dryer |
| title_full_unstemmed | Modeling the optimal condition for drying rumen contents using a solar greenhouse dryer |
| title_short | Modeling the optimal condition for drying rumen contents using a solar greenhouse dryer |
| title_sort | modeling the optimal condition for drying rumen contents using a solar greenhouse dryer |
| topic | Moisture Rumen content Slaughterhouse by-products Biomass drying Drying rate |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X21008418 |
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