basically I am trying to decide if I could use an electric motor as a generator to charge a battery source, and when needed use it as a motor as well. I think the only issue is the rpm's which it is operating at, to get the most efficient electrical generation. Insights would be appreciated.
If your party is anything in between, you may want to go for a half sheet cake. But wait, how big is a half sheet cake? It should be something between a quarter and a full sheet cake, of course. The standard size for most commercial half sheet cakes is 12âx16â. That could feed about 40 to 50 guests, depending on the serving size and on the number of people who would request for second servings.
A quick guideline for servings follows: 1  A 1/4 Sheet Cake Pan is 9 by 12 inches, which will usually serve 12 to 20 people. 2  A 1/2 Sheet Cake Pan is 11 by 15 inches, which will usually serve 18 to 40 people.  A full Sheet Cake Pan is 18 by 24 inches, which will usually serve 48 to 96 people. This is a fabulous event cake for charities and grand company celebrations.