Study of the revolving vane expander
In order to find an energy efficient system to address the possibility of using CO2 refrigeration systems, the use of a work recovery device called an expander was being studied. This project examines the performance of a Revolving Vane (RV) expander prototype by analyzing the experimental rotor out...
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| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/10356/46079 |
| _version_ | 1826128254217486336 |
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| author | Lau, Daniel Jun Ming. |
| author2 | Ooi Kim Tiow |
| author_facet | Ooi Kim Tiow Lau, Daniel Jun Ming. |
| author_sort | Lau, Daniel Jun Ming. |
| collection | NTU |
| description | In order to find an energy efficient system to address the possibility of using CO2 refrigeration systems, the use of a work recovery device called an expander was being studied. This project examines the performance of a Revolving Vane (RV) expander prototype by analyzing the experimental rotor output torque in various conditions of operational speed and suction pressure, and comparing these results with theoretical ones.
It was found that excessively low operational speeds were detrimental to volumetric efficiency because of the high proportion of leakage flow rate. High speeds should also be avoided as this may compromise mechanical efficiency while raising volumetric efficiency. The optimum performance for the prototype is at 10-15 Hz of preset operating speed and 4-5 bar absolute of air pressure. |
| first_indexed | 2024-10-01T07:21:56Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/46079 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:21:56Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/460792023-03-04T18:23:07Z Study of the revolving vane expander Lau, Daniel Jun Ming. Ooi Kim Tiow School of Mechanical and Aerospace Engineering Alison Subiantoro DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics In order to find an energy efficient system to address the possibility of using CO2 refrigeration systems, the use of a work recovery device called an expander was being studied. This project examines the performance of a Revolving Vane (RV) expander prototype by analyzing the experimental rotor output torque in various conditions of operational speed and suction pressure, and comparing these results with theoretical ones. It was found that excessively low operational speeds were detrimental to volumetric efficiency because of the high proportion of leakage flow rate. High speeds should also be avoided as this may compromise mechanical efficiency while raising volumetric efficiency. The optimum performance for the prototype is at 10-15 Hz of preset operating speed and 4-5 bar absolute of air pressure. Bachelor of Engineering (Mechanical Engineering) 2011-06-28T08:57:15Z 2011-06-28T08:57:15Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/46079 en Nanyang Technological University 101 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics Lau, Daniel Jun Ming. Study of the revolving vane expander |
| title | Study of the revolving vane expander |
| title_full | Study of the revolving vane expander |
| title_fullStr | Study of the revolving vane expander |
| title_full_unstemmed | Study of the revolving vane expander |
| title_short | Study of the revolving vane expander |
| title_sort | study of the revolving vane expander |
| topic | DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics |
| url | http://hdl.handle.net/10356/46079 |
| work_keys_str_mv | AT laudanieljunming studyoftherevolvingvaneexpander |