PDF Publication Title:
Text from PDF Page: 068
1.14. That is a relatively small variation and by inspecting Figure 25-7 we can see the efficiencies are fairly consistent. There were 27 failures during these 100 cycles. Thirteen were classified as routine auxiliary problems. Four were types that could not be specifically explained. Ten were directly attributable to the controller. Six of these ten failures were due to low power in the memory unit wiping out previous cycle information. This problem was thought to be caused by either low voltage on line from power company or weak power supply in the unit itself. This problem was corrected finally by putting on a sola transformer to regulate line voltage and replacing the 5V power supply in the controller. This problem has not reoccurred. Three of these failures were asso ciated with the controller allowing the system to start charging before the cooldown exit temperature was reached, resulting in a failure on charge and system shutdown. This problem has not reoccurred. One failure was due to new controller board debug ging (see discussion in next 100 cycle section). Thirty cycle days were lost (Figure 25-8). This 100 cycles took about three months to complete. There was one electrolyte change after 138 cycles (113-250). The electrolyte was lost due to seal on main electrolyte pump. Cycles 301-400 The average energy efficiency of these cycles was 62.8%. The standard deviation was 1.21. The deviation was somewhat larger than the previous 100 cycles but was still acceptable. The scatter was much greater than for previous cycles (Figure 25-7). There were many experimental problems during this 100 cycles. There were 67 failures during these 100 cycles. Twenty-four could be classified as routine auxiliary problems. Five of these, on hindsight, proved to be agitator failures due to worn motor brushes. The four liquid exchanges were due to the con troller malfunctioning four times and not activating the inlet heater, resulting in the tube freezing up. This was corrected. The nine miscellaneous controller failures and one from the previous 100 cycles, were due to changes being made in the software and the debugging involved. Thirty of these failures were due to low energy efficiencies caused by blockage of chlorine vent holes by wax-like deposits. These problems started in late August and several remedies were tried to remove them. Finally in mid-January, the battery top was removed and the deposits were noted and removed. The vent holes were enlarged to prevent this from reoccurring. The chlo rine electrodes were gas-locking (the ones with deposits) and the zinc electrodes 25-13PDF Image | Development of the Zinc-Chlorine Battery for Utility
PDF Search Title:
Development of the Zinc-Chlorine Battery for UtilityOriginal File Name Searched:
6302789.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Power up your energy storage game with Salgenx Salt Water Battery. With its advanced technology, the flow battery provides reliable, scalable, and sustainable energy storage for utility-scale projects. Upgrade to a Salgenx flow battery today and take control of your energy future.
| CONTACT TEL: 608-238-6001 Email: greg@salgenx.com | RSS | AMP |