The syngas-to-power can be synchronized seamlessly to hybrid solar PV/battery system for backup electric generation. The deficient power generated by solar PV arrays can then be complemented at sudden time when the battery level drops while discharging. One day before switching to syngas genset, the cleaned syngas effluent was prepared in a gas storage tank (as shown in Fig. B3) which was typically located separately to the main gasifier unit. The gas storage tank acts as a buffer in order to balance fluctuations in the production of gas in the gasification process. Afterward the syngas was let to flow into the receiver of gas holder, which from here was ready to be compressed into the syngas container until reach approximately 10 bar gauge. The storage capacity of the syngas network is more than 140 kW which is large enough to supply for one week at a standby condition. When syngas production levels are highly variable, dual fuel mixing can be used to supplement the syngas with liquefied petroleum gas (LPG). At the beginning, when SOC dropped below 40%, the syngas genset was automatically started to be warming up at about 5 min of continuous idle operation (900 rpm). The air-fuel mixture under lean-burn conditions was adjusted by a control box until the genset run stably. According to Fig. B4, the solenoid operated butterfly valve (CV-01) that will open by programming mechanism was installed to arrange the flow of the syngas. Together with syngas, the fresh air was flowed through CV-02 into the mixer, and directed in to the electronic hydraulic actuator of the combustion chamber. It should be noted here that during starting the genset, the flow rate of the syngas was let maximum and reduce the rate until the genset start running. After that, the genset was accelerated at the synchronous speed of 1500 rpm (frequency 50 Hz and voltage range 380-415 V). Once the SOC was reached its target point, the genset automatically shuts. Fig. B4 A schematic diagram of the air/fuel intake manifold with the syngas engine through the speed governor system
The syngas-to-power can be synchronized seamlessly to hybrid solar PV/battery system for backup electric generation. The deficient power generated by solar PV arrays can then be complemented at sudden time when the battery level drops while discharging. One day before switching to syngas genset, the cleaned syngas effluent was prepared in a gas storage tank (as shown in Fig. B3) which was typically located separately to the main gasifier unit. The gas storage tank acts as a buffer in order to balance fluctuations in the production of gas in the gasification process. Afterward the syngas was let to flow into the receiver of gas holder, which from here was ready to be compressed into the syngas container until reach approximately 10 bar gauge. The storage capacity of the syngas network is more than 140 kW which is large enough to supply for one week at a standby condition. When syngas production levels are highly variable, dual fuel mixing can be used to supplement the syngas with liquefied petroleum gas (LPG). At the beginning, when SOC dropped below 40%, the syngas genset was automatically started to be warming up at about 5 min of continuous idle operation (900 rpm). The air-fuel mixture under lean-burn conditions was adjusted by a control box until the genset run stably. According to Fig. B4, the solenoid operated butterfly valve (CV-01) that will open by programming mechanism was installed to arrange the flow of the syngas. Together with syngas, the fresh air was flowed through CV-02 into the mixer, and directed in to the electronic hydraulic actuator of the combustion chamber. It should be noted here that during starting the genset, the flow rate of the syngas was let maximum and reduce the rate until the genset start running. After that, the genset was accelerated at the synchronous speed of 1500 rpm (frequency 50 Hz and voltage range 380-415 V). Once the SOC was reached its target point, the genset automatically shuts. Fig. B4 A schematic diagram of the air/fuel intake manifold with the syngas engine through the speed governor system
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