Calling Ed Storms!
Please set Jed straight on this issue. He does not think that a large source of electrical power added to the system needs to be accounted for. There are two P-in points, one for the whole system and one for the calorimetry. He is going into brain freeze again and we have wasted too much band-width with these arguments to start another one. From: Jed Rothwell The is no question but that ALL required input power MUST be included as P-in No, that is incorrect. Only energy which enters the system after the cooling water passes P-in can be measured, and that is the only energy that need to be measured. The pump is outside that, so it is irrelevant. - Jed