Can drones deliver?: Difference between revisions
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Estimation of power consumption in kW can be determined by: | Estimation of power consumption in kW can be determined by: | ||
<math>\frac{(m_p+m_v)v}{370\eta r}+p</math> | <math>\frac{(m_p+m_v)v}{370\eta r}+p</math> | ||
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v = cruising velocity in km/h | v = cruising velocity in km/h | ||
The worst case energy requirement in kWh can be approximated by:<math>\frac{d}{1-\psi }\frac{(m_p+m_v)v}{370\eta r}+\frac{p}{v}</math> | The worst case energy requirement in kWh can be approximated by: | ||
<math>\frac{d}{1-\psi }\frac{(m_p+m_v)v}{370\eta r}+\frac{p}{v}</math> | |||
d = maximum range in km | d = maximum range in km | ||
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Average energy cost per kilometer can be approximated by: | Average energy cost per kilometer can be approximated by: | ||
<math> | |||
<math>\frac{c}{e}\frac{(m_p+m_v)v}{370\eta r}+\frac{p}{v}</math> | |||
c = cost of electricity in $/kWh | c = cost of electricity in $/kWh | ||
e = charging efficiency | e = charging efficiency | ||
Average battery cost per kilometer can be approximated by | Average battery cost per kilometer can be approximated by: | ||
<math>\frac{k}{l}\frac{(m_p+m_v)v}{370\eta r}+\frac{p}{v}</math> | |||
k = battery cost in $/kWh | k = battery cost in $/kWh | ||
l = life of battery, in cycles | l = life of battery, in cycles | ||
Some of the formulas in this article could be used to determine how much power our drone would need to function and what the costs might be in operating it. | Some of the formulas in this article could be used to determine how much power our drone would need to function and what the costs might be in operating it. | ||
Latest revision as of 23:38, 28 April 2018
This article deals with the feasibility of drone delivery using formulas to give the answer to this question.
Estimation of power consumption in kW can be determined by:
[math]\displaystyle{ \frac{(m_p+m_v)v}{370\eta r}+p }[/math]
mp= payload mass in kilo
mv= vehicle mass in kilo
r = lift-to-drag ratio
η = power transfer efficiency for motor and propeller
p = power consumption of electronics in kW
v = cruising velocity in km/h
The worst case energy requirement in kWh can be approximated by:
[math]\displaystyle{ \frac{d}{1-\psi }\frac{(m_p+m_v)v}{370\eta r}+\frac{p}{v} }[/math]
d = maximum range in km
ψ = ratio of headwind to airspeed
Average energy cost per kilometer can be approximated by:
[math]\displaystyle{ \frac{c}{e}\frac{(m_p+m_v)v}{370\eta r}+\frac{p}{v} }[/math]
c = cost of electricity in $/kWh
e = charging efficiency
Average battery cost per kilometer can be approximated by:
[math]\displaystyle{ \frac{k}{l}\frac{(m_p+m_v)v}{370\eta r}+\frac{p}{v} }[/math]
k = battery cost in $/kWh
l = life of battery, in cycles
Some of the formulas in this article could be used to determine how much power our drone would need to function and what the costs might be in operating it.