以鲜切猕猴桃为试材,研究介质阻挡放电、滑动电弧放电形成的冷等离子体液相或气相处理对猕猴桃果实外观、可滴定酸含量、可溶性固形物含量及硬度的影响,并分析其对鲜切猕猴桃果实的保鲜作用。结果表明,鲜切猕猴桃经介质阻挡放电或滑动...以鲜切猕猴桃为试材,研究介质阻挡放电、滑动电弧放电形成的冷等离子体液相或气相处理对猕猴桃果实外观、可滴定酸含量、可溶性固形物含量及硬度的影响,并分析其对鲜切猕猴桃果实的保鲜作用。结果表明,鲜切猕猴桃经介质阻挡放电或滑动电弧放电形成的冷等离子体液相或气相处理,其外观保持在72 h以上;等离子体液相或气相处理对鲜切猕猴桃有较好的保鲜效果,其较为适宜的参数为放电电源25 k V、8 k Hz,处理时间为15 min。展开更多
Gliding arc gas discharge plasma was used for the generation of hydrogen from steam reforming of dimethyl ether(DME).A systemic procedure was employed to determine the suitable experimental conditions.It was found tha...Gliding arc gas discharge plasma was used for the generation of hydrogen from steam reforming of dimethyl ether(DME).A systemic procedure was employed to determine the suitable experimental conditions.It was found that DME conversion first increased up to the maximum and then decreased slightly with the increase of added water and air.The increase of total feed gas flow rate resulted in the decrease of DME conversion and hydrogen yield,but hydrogen energy consumption dropped down to the lowest as total feed gas flow rate increased to76 ml·min 1.Larger electrode gap and higher discharge voltage were advantageous.Electrode shape had an important effect on the conversion of DME and production of H2.Among the five electrodes,electrode 2#with valid length of 55 mm and the radian of 34 degrees of the top electrode section was the best option,which enhanced obviously the conversion of DME.展开更多
文摘以鲜切猕猴桃为试材,研究介质阻挡放电、滑动电弧放电形成的冷等离子体液相或气相处理对猕猴桃果实外观、可滴定酸含量、可溶性固形物含量及硬度的影响,并分析其对鲜切猕猴桃果实的保鲜作用。结果表明,鲜切猕猴桃经介质阻挡放电或滑动电弧放电形成的冷等离子体液相或气相处理,其外观保持在72 h以上;等离子体液相或气相处理对鲜切猕猴桃有较好的保鲜效果,其较为适宜的参数为放电电源25 k V、8 k Hz,处理时间为15 min。
基金Supported by the National Natural Science Foundation of China(21176175,20606023)
文摘Gliding arc gas discharge plasma was used for the generation of hydrogen from steam reforming of dimethyl ether(DME).A systemic procedure was employed to determine the suitable experimental conditions.It was found that DME conversion first increased up to the maximum and then decreased slightly with the increase of added water and air.The increase of total feed gas flow rate resulted in the decrease of DME conversion and hydrogen yield,but hydrogen energy consumption dropped down to the lowest as total feed gas flow rate increased to76 ml·min 1.Larger electrode gap and higher discharge voltage were advantageous.Electrode shape had an important effect on the conversion of DME and production of H2.Among the five electrodes,electrode 2#with valid length of 55 mm and the radian of 34 degrees of the top electrode section was the best option,which enhanced obviously the conversion of DME.
