Loop Heat Pipe(回路热管)

Loop Heat Pipe(回路热管)

a micro-technology for heat transfer ---微热传热移除技术

回路热管介绍

  Loop heat pipe (LHP) is a heat-transfer device utilizing a fine porous or wick structure in micro
scale to achieve remote heat transport with high power.  The special features of LHP are:
  (1) Heat transport in long distance, several meters distance.
  (2) High power, as high as several hundreds Watt.
  (3) Flexible, bendable connecting pipe.
  (4) Anti-gravity operation, maintaining high heat transfer capability in anti-gravity direction.
  (5) Passive heat-transfer device, no external power input.

   The major application of LHP is in aerospace and at high cost. LHP is thought to be the next-generation heat-transfer device for the cooling of electronic device in commercial products, if the cost can be reduced.
    KongLin Co has been devoted to the development of low-cost LHP with National Taiwan University and famous Russia LHP experts for more than 4 years. A low-cost manufacturing process was accomplished and patented internationally.

回路热管工作原理

	LHP is a hermetic closed-loop device filled with working fluid. Vapor is generated by heating at the evaporator and flows to the condenser in which vapor is condensed into liquid due to heat dissipation to the surrounding. Liquid then flows back to the evaporator through connecting pipe by capillary force induced by a wick material inside the evaporator. Liquid is continuously supplied to the evaporator for evaporation again to complete a cycle. The wick is made of porous material with micro pores to act as a powerful capillary pump for  returning liquid from the condenser.

回路热管产品项目

	(1)Evaporator : saddle L45×W40×H20(mm); cyclinder 13.4mm dia (2)Condenser (copper plate) : L300×W200×t0.4(mm) (3)Connecting pipe : φ4mm (OD) (4)Total mass：450g (5)Wick material: Ni, capillary dia. 2~8μm (6)Starting power : < 10W (7)Maximum heat transport : 120W (8)Heat transfer distance：10～100cm (9)Evaporator thermal resistance : 0.1 K/W (10)Total thermal resistance : < 0.5 K/W (with cooling fan)

回路热管效能分析

	Our product has been tested at different conditions to meet various application requirements. LHP lab test includes :    (1) Steady-state performance test;    (2) Heat transfer capacity at different orientation;    (3) Reliability test in ON/OFF operation (passed 400 days test);    (4) Durability test in cycling environment between -40oC and +80oC (passed 200 cycles).  Please contact us for more technical information. LHP performance at different orientations LHP reliability test (406 days)

回路热管产品应用

回路热管产品价格

Please contact us for the order of samples. The standard samples are supplied at the following price:We also offer customer-design LHP with different price. Please contact us for special requirement.