摘要
在液化天然气(LNG)作为磷酸型燃料电池(PAFC)燃料的电站中,大量的LNG冷能和PAFC废热被释放。提出一种利用LNG和环境作为冷源的双冷源动力循环和LNG直接膨胀做功相结合的回收PAFC废热和LNG冷能的能量系统。对循环的分析表明,当工质为水时,该循环对PAFC废热和LNG冷能的可用能的回收效率最大可达47%左右。
A power generation cycle for recovering the waste heat released by PAFC fuel cell and the cold energy released by LNG was presented and analyzed,which combines a LNG directly expansion cycle and an ammonia-water mixture steam cycle with dual cold sources of environment and LNG.The calculation results show that the overall exergy efficiency for recovering the waste heat of PAFC and the cold energy of LNG can reach 47% when the working fluid is pure water.
出处
《低温工程》
CAS
CSCD
北大核心
2005年第3期56-59,64,共5页
Cryogenics
