TENSE DAYS AHEAD FOR THE FLEETS

Details: Published: 16 November 2021

Transat Jacques Vabre

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Litijeva baterija BlueCell 100 Ah 38,4 V je namenjena vsem, ki bi se radi izognili pomanjkanju električne v trenutku, ko začne riba prijemati. Njena kapaciteta znaša 3840 Wh. Vsa energija je shranjena v eni bateriji standardne velikosti 522x238x217 mm. Zaradi izjemne gostote energije, je ekvivalentna 3 zaporedno vezanim svinčenim baterijam s kapaciteto 200 Ah. Njena teža znaša le 29 kg in nadomesti 180 kg svinčenih baterij. Baterija je izdelana s pomočjo najnovejše tehnologije. Vgrajene ima prizmatične celice, ki omogočajo preko 3000 praznjenj preko 70% nazivne kapacitete.

Zanesljivost

Litijeve baterije BlueCell imajo vgrajen sistem BMS, ki učinkovito ščiti baterijo pred prevelikim izpraznjenjem ali polnjenjem. Ko napetost na bateriji pade pod 10 V, se baterija samodejno izklopi in prepreči škodljivo praznjenje, ki bi lahko baterijo poškodovalo. Enako je pri polnjenju. Baterijo lahko globoko izpraznimo več kot 3000-krat. Če jo bomo izpraznili vsak dan preko 70 % nazivne kapacitete, bomo za to potrebovali 10 let. Pri praznjenju baterije do 50 % pa bo njena življenjska doba več kot 6000 ciklov. V tem času bi na plovilu svinčene baterije morali zamenjati vsaj trikrat. Da so litijeve baterije vrhunske kakovosti, zagotavlja tudi triletna tovarniška garancija.

Nadzor

Litijeve baterije BlueCell 100Ah 38,4V imajo vgrajeno bluetooth povezavo. S pomočjo aplikacije na telefonu lahko spremljate stanje baterije.

Prikazani so:

odstotki napolnjenosti baterije,
tok polnjenja/praznenja,
napetost na bateriji,
napetost posameznih celic,
temperatura baterije
število ciklov
zgodovina polnjena/praznjenja
in številni drugi parametri.

Tehnični podatki:

Nazivna kapaciteta: 100 Ah
Uporabna kapaciteta: 100 Ah
Nazivna energija: 3840 Wh
Uporabna energija: 3840 Wh
Dimenzije (DxŠxV): 522x238x217 mm
Teža: 29 kg
Tok praznjenja (max): 100 A
Tok polnjenja (max): 100 A
Temperaturno območje polnjenja: -10 – 60 C
Temperaturno območje praznjenja: -20 – 70 C
Napetost polnjenja: 43.2~43.8V
Priključni terminal: M8
Število ciklov pri praznjenju preko 70%: 3000
Življenjska doba (ciklov): 6000+
Samodejno praznjenje: <3,5% na mesec
Garancija: 3 leta

BlueCell 100Ah 38,4V BT

Transat Jacques Vabre

After nine days of racing the monohulls are still bunched together in cat and mouse battles in which any mistake will prove costly. Maxi Edmond de Rothschild keeps getting faster at the front of the Ultimes whilst the Ocean Fifty class may well be shuffled as they enter the Doldrums.

Ultime - enter the southern hemisphere

The Ultimes have been speeding south since escaping the doldrums yesterday. The technical battle of previous days has turned into a speed race between the four leading boats. However, discounting any possible breakages, catching the leader seems like an almost impossible task. Franck Cammas and Charles Caudrelier on Maxi Edmond de Rothschild are almost 300 miles ahead and have averaged 3-4 knots more over the early morning than the chasing boats.

François Gabart on his new trimaran SVR - Lazartigue is doing his best to stay in touch with the leaders, "The doldrums were difficult for us. We lost a lot of ground on our competitors.”

The crews are now heading upwind towards the next waypoint at Fernando de Noronha.

IMOCA – man to man marking

After a long descent along the African coast in search of thermal breeze, the leading group has gybed and is starting a long starboard tack toward the entrance to the Doldrums. The conditions are lighter, forcing the pairs to focus on sail, foil trimming and mast setting. LinkedOut, is still holding the lead but only 70 miles separate the top 5 boats. Apivia is only seven miles behind in second place. It’s a game of cat and mouse, who will blink first?

Ocean Fifty: winning contest on the programme

The 50-foot fleet is a playful one. The seven crews have been challenging each other in speed duels over recent days but all this will change as they enter the Doldrums.

Thibault Vauchel-Camus (Solidaires en Peloton - ARSEP) explained on their radio broadcast this morning that they feel short-changed by the conditions recently, "Primonial is leading the way, even though we're following a similar weather and geographical route. That's the beauty of sailing! Anyway we’re only halfway there so there's still plenty more time!”

Primonial is still in first place, while Koesio and Solidaires en Peloton-ARSEP are closing the gap. Further east, CGA-1001 Sourires and Arkema 4 seem to have opted for a more direct route. If conditions allow them a quick crossing, this could once again shake up the ranking.

Class40: yet another slowdown in sight

The leading 40 footers are seeing the miles pass under their bows as they slide along the coast. The gybes continue to punctuate the race of this very tightly bunched fleet. If the weather forecast is correct then the frontrunners will likely slow while the chasing pack continue in good breeze. Benoit Hantzberg explains more from his boat Volvo, "The next few days are going to be lighter. There will be a lot of gybing to do to get to Cape Verde. It will be similar to what we had along Portugal. That's also why we do these races, not necessarily just for the long speed tacks!"