Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel
Paraffin fuel has been found to have a regression rate that is higher than conventional HTPB (hydroxyl-terminated polybutadiene) fuel and, thus, presents itself as an ideal energy source for a hybrid rocket engine. The energy characteristics of paraffin-based fuel and HTPB fuel have been calcula...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-09-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/8/9/10058 |
| _version_ | 1811300346385924096 |
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| author | Songqi Hu Guanjie Wu Yijin Hua Noor Fatima Rashid Hongyun Hu |
| author_facet | Songqi Hu Guanjie Wu Yijin Hua Noor Fatima Rashid Hongyun Hu |
| author_sort | Songqi Hu |
| collection | DOAJ |
| description | Paraffin fuel has been found to have a regression rate that is higher than conventional HTPB (hydroxyl-terminated polybutadiene) fuel and, thus, presents itself as an ideal energy source for a hybrid rocket engine. The energy characteristics of paraffin-based fuel and HTPB fuel have been calculated by the method of minimum free energy. The thermal degradation characteristics were measured for paraffin, pretreated paraffin, HTPB and paraffin-based fuel in different working conditions by the using differential scanning calorimetry (DSC) and a thermogravimetric analyzer (TGA). The regression rates of paraffin-based fuel and HTPB fuel were tested by a rectangular solid-gas hybrid engine. The research findings showed that: the specific impulse of paraffin-based fuel is almost the same as that of HTPB fuel; the decomposition temperature of pretreated paraffin is higher than that of the unprocessed paraffin, but lower than that of HTPB; with the increase of paraffin, the initial reaction exothermic peak of paraffin-based fuel is reached in advance, and the initial reaction heat release also increases; the regression rate of paraffin-based fuel is higher than the common HTPB fuel under the same conditions; with the increase of oxidizer mass flow rate, the regression rate of solid fuel increases accordingly for the same fuel formulation. |
| first_indexed | 2024-04-13T06:49:43Z |
| format | Article |
| id | doaj.art-d46c33abe69e4d5eba6a935753b1cf69 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T06:49:43Z |
| publishDate | 2015-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d46c33abe69e4d5eba6a935753b1cf692022-12-22T02:57:26ZengMDPI AGEnergies1996-10732015-09-0189100581008110.3390/en80910058en80910058Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based FuelSongqi Hu0Guanjie Wu1Yijin Hua2Noor Fatima Rashid3Hongyun Hu4Science and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University Xi'an, Xi'an 710072, ChinaScience and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University Xi'an, Xi'an 710072, ChinaScience and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University Xi'an, Xi'an 710072, ChinaScience and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University Xi'an, Xi'an 710072, ChinaSchool of Foreign Languages, Shaanxi Normal University, Xi'an 710062, ChinaParaffin fuel has been found to have a regression rate that is higher than conventional HTPB (hydroxyl-terminated polybutadiene) fuel and, thus, presents itself as an ideal energy source for a hybrid rocket engine. The energy characteristics of paraffin-based fuel and HTPB fuel have been calculated by the method of minimum free energy. The thermal degradation characteristics were measured for paraffin, pretreated paraffin, HTPB and paraffin-based fuel in different working conditions by the using differential scanning calorimetry (DSC) and a thermogravimetric analyzer (TGA). The regression rates of paraffin-based fuel and HTPB fuel were tested by a rectangular solid-gas hybrid engine. The research findings showed that: the specific impulse of paraffin-based fuel is almost the same as that of HTPB fuel; the decomposition temperature of pretreated paraffin is higher than that of the unprocessed paraffin, but lower than that of HTPB; with the increase of paraffin, the initial reaction exothermic peak of paraffin-based fuel is reached in advance, and the initial reaction heat release also increases; the regression rate of paraffin-based fuel is higher than the common HTPB fuel under the same conditions; with the increase of oxidizer mass flow rate, the regression rate of solid fuel increases accordingly for the same fuel formulation.http://www.mdpi.com/1996-1073/8/9/10058paraffin fuelenergy characteristicshybrid rocketregression rate |
| spellingShingle | Songqi Hu Guanjie Wu Yijin Hua Noor Fatima Rashid Hongyun Hu Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel Energies paraffin fuel energy characteristics hybrid rocket regression rate |
| title | Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel |
| title_full | Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel |
| title_fullStr | Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel |
| title_full_unstemmed | Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel |
| title_short | Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel |
| title_sort | study on thermal degradation characteristics and regression rate measurement of paraffin based fuel |
| topic | paraffin fuel energy characteristics hybrid rocket regression rate |
| url | http://www.mdpi.com/1996-1073/8/9/10058 |
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