Engineering Specifications Relates Spec Description Importance Units Marginal Target Comments/Status to CN Flow rate of 1 air into 9 1,6,13 kg/min 0.3-0.7 0.2-0.8 stove Flow control 2 3 6,13 # 2 3 Evenly distributed across the flow range settings 3 Unit price 9 3 $ 27.5 12.5 Material cost Coupling 4 time with no 1 2,7,12 min 10 5 Removal 5 time with no 1 2,7,12,15 min 10 5 trial Product life 6 3 4, 9 years 3 5 Assume 2 hr/use and 3 uses/day span Replaceable 7 component 3 4, 9 years 1 2 Rod, Fan, Battery life span Aux 8 3 11,16 Wh 2 Being able to charge ~2 cell phones throughout the day charging Energy storage of 1 battery (Keep in mind energy required 9 Battery size 3 11,13,16 Ah 1.5-3 2 for 5 product startup cycles) 10 Weight 1 7,8,12,15 kg <2.5 <2 11 Volume 1 7,8,12,15 cm^3 3000 1000 Time to 12 reach peak 1 13,16 min 15 10 Within 90% of SS assuming charcoal ignites instantly performance User actions during 13 3 6,7,13 # 6 4 operational cycle User actions 14 to protect 3 5,7 # 1 0 system Maximum temperature 15 3 1,4,9,14 °C 60 50 inside enclosure Maximum 16 3 7,8,14 °C 54 45 external
Engineering Specifications Spec Description Importance Relates to CN Units Marginal Target Comments/Status 1 Flow rate of air into stove 9 1,6,13 kg/min 0.3-0.7 0.2-0.8 2 Flow control settings 3 6,13 # 2 3 Evenly distributed across the flow range 3 Unit price 9 3 $ 27.5 12.5 Material cost 4 Coupling time with no 1 2,7,12 min 10 5 5 Removal time with no 1 2,7,12,15 min 10 5 6 Product life span 3 4, 9 years 3 5 Assume 2 hr/use and 3 uses/day 7 Replaceable component life span 3 4, 9 years 1 2 Rod, Fan, Battery 8 Aux charging 3 11,16 Wh 2 Being able to charge ~2 cell phones throughout the day 9 Battery size 3 11,13,16 Ah 1.5-3 2 Energy storage of 1 battery (Keep in mind energy required for 5 product startup cycles) 10 Weight 1 7,8,12,15 kg <2.5 <2 11 Volume 1 7,8,12,15 cm^3 3000 1000 12 Time to reach peak performance 1 13,16 min 15 10 Within 90% of SS assuming charcoal ignites instantly 13 User actions during operational cycle 3 6,7,13 # 6 4 14 User actions to protect system 3 5,7 # 1 0 15 Maximum temperature inside enclosure 3 1,4,9,14 °C 60 50 16 Maximum external 3 7,8,14 °C 54 45 trial