1 / 8

Power Group

Power Group. Tony Cofer Surviving the Lunar Night 03/25/09. Page 1. Power Needed at Night. Hydrazine specific energy = 973 W∙ hr /Kg Li-ion batteries specific energy = 145 W∙ hr /Kg Thermal equilibrium maintained but temperature distribution to be determined. Page 2.

erich-brady
Download Presentation

Power Group

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Power Group Tony Cofer Surviving the Lunar Night 03/25/09 [Tony Cofer] [Power] Page 1

  2. Power Needed at Night [Tony Cofer] [Power] Hydrazine specific energy = 973 W∙hr/Kg Li-ion batteries specific energy = 145 W∙hr/Kg Thermal equilibrium maintained but temperature distribution to be determined Page 2

  3. HydrazineHeater for 100g and 10kg System Controller [Tony Cofer] [Power] Page 3

  4. Nocturnal Power Controller Controller Interface Command Computer Comparator With Hysteresis Solar Source Actuator [Tony Cofer] [Power] Save 11.5 kg of batteries Controllable Size 2”X2”X1/2” Weight~20 g Power diss. 0.1mW Requires 0.23 g battery for 14 days Page 4

  5. Basic Circuit [Tony Cofer] [Power] Page 5

  6. Backup Slide [Tony Cofer] [Power] 10 W 14 days =10W∙14 days∙24 hrs/day= 3360 W∙hr Good catalyst reaction 200 kg/m2∙s 2.8 mg/s would need 1.4 X10-9 m2 Hrxn = -112093 J/mol = 3502916 J/Kg= 973 W∙hr Page 6

  7. Backup Slide - Parts List [Tony Cofer] [Power] 4081 Quad AND gate 4009 Hex Inverter MC33102 sleep mode op amp 4066 quad line driver 4068 dual D-latch Resistors 4 X 100k,2 X 2 meg 2 “X 2” circuit board Page 7

  8. Backup Slide - Actuators Common Relay Power Mosfet Pulse shut-off/turn-on [Tony Cofer] [Power] Page 8

More Related