摘要
设计利用潜艇液氧冷量的燃料电池(FC)-AIP活性炭低温吸附储氢系统,在模拟潜艇航行中晃动和振动的平台上,测试氢在活性炭上的吸附等温线和储氢系统在为质子交换膜燃料电池(PEMFC)供气时的特性。结果表明,吸附等温线受平台晃振的影响小;温度为113K、压力为6MPa时,比表面积为1450m2.g-1的SAC-02活性炭储氢系统的质量储氢密度可超过当前艇用储氢合金的质量储氢密度;在2kW PEMFC电堆典型工况所需的氢气量(质量流率21.44L.min-1)下,通过充气过程的液氧预冷和放气过程的循环介质加热,可使储罐中心和壁面在整个过程中的最大温差小于5℃。活性炭低温吸附储氢系统的质量密度和储放氢特性能满足艇用FC-AIP系统的要求。
The systematic design of a cryo-adsorptive hydrogen storage on activated carbon was presented for fuel cell AIP systems of submarines. A simulation test rig which consists of 2kW PEMFC stack and accessories necessary for fuel gas supply and water as weU as heat management was set up upon a swing and vibration platform where the practical working condition exerted on submarine could be duplicated. Isotherms of hydrogen adsorption on activated carbon SAC-02 with specific surface area 1450m2 .g-1 were measured within temperature range of 113.15-293.15K and pressure range of 0-15 MPa, dynamic characteristics of the storage vessel packed with the activated carbon was tested under pressure 2MPa at constant flow range of 21.44L/min corresponding to the consumption rate of hydrogen under nominal working condition of the PEMFC stack. The results show that the isotherms are similar to those measured under no swing and vibration of the platform; the excess adsorption amount of hydrogen at temperature 113.15K and pressure 3MPa is larger than that of hydrogen on metal hydride currently used on submarines. The results also reveal that pre-eoohng the vessel before charg- ing and continuously supplying of the heating medium during discharge can limit the temperature fluctuation between the central region and the wall of the storage vessel to 5℃. The performance of the cryo-adsorptive hydrogen storage system on activated carbon can meet the requirement of hydrogen supply for submarine FC-AIP systems.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2011年第4期583-588,共6页
Acta Energiae Solaris Sinica
基金
福建省高等学校新世纪优秀人才支持计划(Z80136)
福建省教育厅高校专项(JK2010030)
关键词
潜艇
AIP
燃料电池
氢气
吸附储存
submarine
AIP
fuel cell
hydrogen
adsorption storage
