Enhanced Discharge of ANG storage for vehicle use

Discharging the ANG storage tank from 3.5 MPa to a depletion pressure results in
temperature fall within the ANG vessel. The fall of storage pressure was from a rapid to slow rate
along with constant rate of gas removal while the temperature was falling drastically with
depressurization as a result of heat of desorption and partly due to pressure drop. In the present
study the characteristics of ANG storage system during discharge has been studied. When gas was
discharged at discharge rate 1, 5, 10 l/min, a much drop in bed temperature occurred. Bed
Preheating was investigated as a solution to enhance the discharge process and to avoid much
amount of gas retained (not desorbed). Improvement in the amount desorbed and capacity was
recorded as a result.