Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCM
A thermal model is proposed to analyze the performance of an indirect solar dryer (ISD) with latent heat storage using phase change material (PCM). The estimations are compared with experimental data presented in the scientific literature taken in real conditions. The validated thermal model is used...
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| Format: | Article |
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MDPI AG
2020-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/20/5508 |
| _version_ | 1827703846482214912 |
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| author | Camilo Ramirez Mario Palacio Mauricio Carmona |
| author_facet | Camilo Ramirez Mario Palacio Mauricio Carmona |
| author_sort | Camilo Ramirez |
| collection | DOAJ |
| description | A thermal model is proposed to analyze the performance of an indirect solar dryer (ISD) with latent heat storage using phase change material (PCM). The estimations are compared with experimental data presented in the scientific literature taken in real conditions. The validated thermal model is used in order to address a comprehensive analysis of the performance of the ISDs under the same operation conditions, the model is able to estimate the temperatures of glass cover, absorber plate, PCM, useful heat, thermal and storage efficiencies, and variables that are difficult to measure experimentally such as liquid fraction, heat losses, and accumulated energy of the ISDs. Three study cases are considered: Case 1 consists of two collectors with and without alternating nocturnal and diurnal operation (benchmarking case). Case 2 and 3 consist in a unique collector operating continuously for 24 h with PCM and without PCM, respectively. It was determined that the use of PCM in ISD increased the night thermal performance and extended the operational time of the system. On the other hand, results indicate that the use of two alternating collectors presents similar discharge behavior to using one collector with PCM operating continuously. Concerning the overall thermal performance, cases 1, 2, and 3 obtained thermal efficiencies of 20%, 28%, and 24%, respectively. |
| first_indexed | 2024-03-10T15:27:34Z |
| format | Article |
| id | doaj.art-6c6f7953adf544498b1c97da2c63df2c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T15:27:34Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-6c6f7953adf544498b1c97da2c63df2c2023-11-20T17:52:54ZengMDPI AGEnergies1996-10732020-10-011320550810.3390/en13205508Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCMCamilo Ramirez0Mario Palacio1Mauricio Carmona2Rational Use of Energy and Environment Preservation Research Group, Universidad del Norte, Barranquilla 081007, Atlántico, ColombiaProcesses Optimization Rational Energy Use and Biomass Research Group, Universidad Pontificia Bolivariana, Montería 230003, Córdoba, ColombiaRational Use of Energy and Environment Preservation Research Group, Universidad del Norte, Barranquilla 081007, Atlántico, ColombiaA thermal model is proposed to analyze the performance of an indirect solar dryer (ISD) with latent heat storage using phase change material (PCM). The estimations are compared with experimental data presented in the scientific literature taken in real conditions. The validated thermal model is used in order to address a comprehensive analysis of the performance of the ISDs under the same operation conditions, the model is able to estimate the temperatures of glass cover, absorber plate, PCM, useful heat, thermal and storage efficiencies, and variables that are difficult to measure experimentally such as liquid fraction, heat losses, and accumulated energy of the ISDs. Three study cases are considered: Case 1 consists of two collectors with and without alternating nocturnal and diurnal operation (benchmarking case). Case 2 and 3 consist in a unique collector operating continuously for 24 h with PCM and without PCM, respectively. It was determined that the use of PCM in ISD increased the night thermal performance and extended the operational time of the system. On the other hand, results indicate that the use of two alternating collectors presents similar discharge behavior to using one collector with PCM operating continuously. Concerning the overall thermal performance, cases 1, 2, and 3 obtained thermal efficiencies of 20%, 28%, and 24%, respectively.https://www.mdpi.com/1996-1073/13/20/5508PCMthermal modelsolar dryingFPSC |
| spellingShingle | Camilo Ramirez Mario Palacio Mauricio Carmona Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCM Energies PCM thermal model solar drying FPSC |
| title | Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCM |
| title_full | Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCM |
| title_fullStr | Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCM |
| title_full_unstemmed | Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCM |
| title_short | Reduced Model and Comparative Analysis of the Thermal Performance of Indirect Solar Dryer with and without PCM |
| title_sort | reduced model and comparative analysis of the thermal performance of indirect solar dryer with and without pcm |
| topic | PCM thermal model solar drying FPSC |
| url | https://www.mdpi.com/1996-1073/13/20/5508 |
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