CAJ | 학술논문

为研制替换家庭用LPG储罐的吸附式天然气（ANG）储罐进行了对比试验。针对ANG技术在应用过程中涉及如何管理吸附热效应的问题，选择比表面积为2074 m2/g的SAC-02椰壳活性炭，容积为1．5 L的柱状钢制压力容器，在15 L/min的充放气流率下，测试并分析了循环换热水管布置形式、循环水温度及充放气方式变化对储罐吸附床中心温度和储罐累积充/放气量的影响。结果表明，储罐中心在布置螺旋形换热水管后的温度变化幅度比布置U 形换热水管时减少约10℃，储罐总充/放气量相应增加18％和14％；储罐换热水管循环常温自来水就能有效抑制储罐吸附床的温度波动；选用多孔管充/放气可使储罐中心温度上升/下降的幅度分别减小15℃和10℃，但会造成储罐总的充放气量下降2％和7％。家庭用A N G储罐可选用自来水冷却/加热吸附床，在选择换热管和充放气时需兼顾其对储罐总充/放气量的影响。
위연제체환가정용LPG저관적흡부식천연기（ANG）저관진행료대비시험。침대ANG기술재응용과정중섭급여하관리흡부열효응적문제，선택비표면적위2074 m2/g적SAC-02야각활성탄，용적위1．5 L적주상강제압력용기，재15 L/min적충방기류솔하，측시병분석료순배환열수관포치형식、순배수온도급충방기방식변화대저관흡부상중심온도화저관루적충/방기량적영향。결과표명，저관중심재포치라선형환열수관후적온도변화폭도비포치U 형환열수관시감소약10℃，저관총충/방기량상응증가18％화14％；저관환열수관순배상온자래수취능유효억제저관흡부상적온도파동；선용다공관충/방기가사저관중심온도상승/하강적폭도분별감소15℃화10℃，단회조성저관총적충방기량하강2％화7％。가정용A N G저관가선용자래수냉각/가열흡부상，재선택환열관화충방기시수겸고기대저관총충/방기량적영향。
Comparative experiments were carried out to develop an adsorbed natural gas (ANG) storage tank for replacing a domestically used liquefied petroleum gas (LPG) tank .Coco-nut shell activated carbon SAC-02 with SBET of 2 074 m2/g was selected as an adsorbent .A cylin-drical steel pressure vessel ,which was respectively equipped with a helical heat exchanging pipe , a U-shaped pipe and a perforated tube ,was used to evaluate the effect of the cooling/heating wa-ter and the charge/discharge patterns on temperature fluctuation of the adsorbent bed and the charged/discharged amount of the storage tank .Tests were undertaken at ambient temperature , under pressure of 3 .5 M Pa and the flow rate 15 L/min of the natural gas .It show s that ,about 10℃ fluctuation of temperature at the central region of the storage tank has been cut dow n by circu-lating the cooling/heating water along the helical pipe instead of the U-shaped pipe ,and the total charged/discharged amount of the gas from the vessel has also correspondingly increased by about 18% and 14% ,respectively .Charging/discharging the gas through the perforated tube can re-duce the temperature fluctuation amplitude about 15 ℃ and 10 ℃ ,respectively ,but the total a-mount of gas charging /discharging from the vessel has been decreased by 2% and 7% .It sug-gests that the running water at ambient temperature is an effective medium for managing the thermal effect of a domestically used ANG vessel in the charge/discharge process ,and conform-able design of the vessel should be undertaken by optimization among the measures of introducing supplemental heat ,heat and mass transfer enhancement of the adsorbent as w ell as the charge/discharge methods .