Accumulator testing in multiple on-ground orientations for a small Mechanically Pumped Two-phase Loop (MPTL) for CCD thermal control
| dc.creator | van Es, Johannes | |
| dc.creator | Pauw, Aswin | |
| dc.creator | Van Vliet, Adry | |
| dc.creator | Meng, Qingliang | |
| dc.creator | Zhen Ming, Zhao | |
| dc.creator | van Gerner, Henk Jan | |
| dc.date.accessioned | 2021-06-23T16:42:27Z | |
| dc.date.available | 2021-06-23T16:42:27Z | |
| dc.date.issued | 7/12/2021 | |
| dc.description | Johannes van Es, NLR | |
| dc.description | Aswin Pauw, Netherlands Aerospace Centre (NLR) | |
| dc.description | Adry Van, Vliet National Aerospace Laboratory NLR | |
| dc.description | Qingliang Meng, Beijing Insttitute of Space Mechanics and Electricity (BISME) | |
| dc.description | Zhao Zhen Ming, Beijing Insttitute of Space Mechanics and Electricity (BISME) | |
| dc.description | Henk Jan van Gerner, Royal Netherlands Aerospace Centre (NLR) | |
| dc.description | ICES201: Two-Phase Thermal Control Technology | en |
| dc.description | The 50th International Conference on Environmental Systems was held virtually on 12 July 2021 through 14 July 2021. | en_US |
| dc.description.abstract | NLR designed and developed on request and in co-operation with BISME an Engineering Model of a Mechanically Pumped Two-phase Fluid Loop (MPTL) Thermal Control System for CCD thermal control. The objective is to provide accurate thermal control (�1 �C) and a temperature uniformity of <2 �C for nine CCD cameras. The accumulator is a crucial component of such a two-phase pumped thermal control system which allows for loop density changes, and controls the pressure and thereby temperature of the thermal control system. As the accumulator is a large volume with both vapour and liquid, the accumulator is specially designed with internal wick structures for operation in micro-gravity to assure liquid is located at the accumulator inlet and below the accumulator heaters. The design is made such that operation in multiple on-ground orientations is possible. This is demonstrated by tests. The paper starts with a brief overview of the MPTL project and the MPTL design. Subsequently the MPTL accumulator design and the test set-up are explained and test results in various orientations are presented. The paper concludes with an outlook on future MPTL developments and applications. | en_US |
| dc.format.mimetype | application/pdf | |
| dc.identifier.other | ICES-2021-38 | |
| dc.identifier.uri | https://hdl.handle.net/2346/87056 | |
| dc.language.iso | eng | en_US |
| dc.publisher | 50th International Conference on Environmental Systems | en_US |
| dc.subject | Two-phase heat transfer | |
| dc.subject | Mechanically Pumped Loop | |
| dc.subject | Heat Controlled Accumulator | |
| dc.subject | System testing | |
| dc.title | Accumulator testing in multiple on-ground orientations for a small Mechanically Pumped Two-phase Loop (MPTL) for CCD thermal control | en_US |
| dc.type | Presentation | en_US |