US 11,872,660 B2
Fast heat pipe design and analysis methodology
Samet Saygan, Ankara (TR); Yigit Akkus, Istanbul (TR); Barbaros Cetin, Ankara (TR); and Zafer Dursunkaya, Ankara (TR)
Assigned to ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI, Ankara (TR); IHSAN DOGRAMACI BILKENT UNIVERSITESI, Ankara (TR); and ORTA DOGU TEKNIK UNIVERSITESI, Ankara (TR)
Appl. No. 18/250,546
Filed by ASELSAN ELEKTRONIK SANAYI VE TICARET ANONIM SIRKETI, Ankara (TR); IHSAN DOGRAMACI BILKENT UNIVERSITESI, Ankara (TR); and ORTA DOGU TEKNIK UNIVERSITESI, Ankara (TR)
PCT Filed Oct. 19, 2021, PCT No. PCT/TR2021/051071
§ 371(c)(1), (2) Date Apr. 26, 2023,
PCT Pub. No. WO2022/093158, PCT Pub. Date May 5, 2022.
Claims priority of application No. 2020/17018 (TR), filed on Oct. 26, 2020.
Prior Publication US 2023/0321772 A1, Oct. 12, 2023
Int. Cl. B23P 15/26 (2006.01)
CPC B23P 15/26 (2013.01) [B23P 2700/09 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A fast performance determination and design methodology simulating a flow and an energy transfer inside a heat pipe, comprising the following steps:
i. calculating a pressure variation (Pliq) along the heat pipe and a corresponding edge angle variation (θedge) to obtain a liquid and vapor phases distribution in a heat pipe wick structure;
ii. determining a length of an effective liquid flow region (Leff), which extends between an initial point in an evaporator section, where the effective liquid flow occurs, and a point in a condenser section, where an edge angle first reaches 90°;
iii. calculating an amount of heat transferred by a conduction (Qcond) and a phase change (Qpc), using a conduction thermal resistance (Rcond) and thermal resistances in the evaporator section (Re) and the condenser section (Rc) during the phase change; and
iv. obtaining operating and performance parameters of the heat pipe including at least one of a temperature distribution along the heat pipe, a variation of a radius of curvature of a liquid-vapor interface along the heat pipe, a vapor temperature, or pressure of a fluid.