| 词条 | Transpiration cooling |
| 释义 |
One approach to transpiration cooling is to move liquid through small pores in the outer wall of a body leading to evaporation of the liquid to a gas via the physical mechanism of evaporative cooling. Other approaches are possible.[1] ApplicationsTranspiration cooling is used in the aerospace industry, in jet[2] and rocket engines,[5][3] and also in space vehicles reentering the Earth's atmosphere at hypersonic velocities where a transpirationally cooled outer skin can serve as a part of the thermal protection system of the reentering spacecraft.[4][5][6][7] Transpiration cooling is just one of a variety of cooling techniques that may be used to reduce regenerative cooling loads in rocket engines and subsequently reduce propellant requirements. Other techniques exist, such as film cooling, ablative cooling, radiative cooling, heat sink cooling and dump cooling.[8] References1. ^1 Transpiration Cooling, Thermopedia.com, accessed 30 January 2019. {{Thermodynamics-stub}}2. ^[https://gow.epsrc.ukri.org/NGBOViewGrant.aspx?GrantRef=EP/P000878/1 Transpiration Cooling Systems for Jet Engine Turbines and Hypersonic Flight], accessed 30 January 2019. 3. ^[https://arc.aiaa.org/doi/10.2514/3.26718 Transpiration cooling effects on nozzle heat transfer and performance], 1995, D. Keener, J. Lenertz, R. Bowersox, and J. Bowman, Journal of Spacecraft and Rockets, Vol. 32, No. 6, pp. 981-985.https://doi.org/10.2514/3.26718 4. ^ {{cite news |last=Gebhardt|first=Chris |url=https://www.nasaspaceflight.com/2019/04/starhopper-first-flight-starship-superheavy-updates/ |title=Starhopper conducts Raptor Static Fire test |work=NASASpaceFlight.com |date=3 April 2019 |accessdate=4 April 2019 |quote=Transpiration cooling is the act of pumping coolant – in this case, liquid methane – through the skin structure of Starship to absorb additional heat in particular areas of the vehicle during reentry.}} 5. ^https://www.space.com/43101-elon-musk-explains-stainless-steel-starship.html Why Elon Musk Turned to Stainless Steel for SpaceX's Starship Mars Rocket], Mike Wall, space.com, 23 January 2019, accessed 30 January 2019. 6. ^1 https://www.teslarati.com/spacex-ceo-elon-musk-starship-transpiring-steel-heat-shield-interview/ SpaceX CEO Elon Musk explains Starship's "transpiring" steel heat shield in Q&A], Eric Ralph, Teslarati News, 23 January 2019, accessed 30 January 2019 7. ^[https://www.teslarati.com/spacex-starship-official-render/ https://www.teslarati.com/spacex-starship-official-render/] 8. ^1 [https://www.sciencedirect.com/science/article/pii/S2212540X1830004X?via%3Dihub Review on film cooling of liquid rocket engines], S.R. Shinen, S. Shri Nidhi, 21 March 2016, Propulsion and Power Research, 2018;7(1):1–18 2 : Thermodynamic processes|Spaceflight technologies |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。