5 ms·
A simple example I used recently in order to guesstimate how much energy is needed to heat 300liters of water by 5K: You have: 5K * 300kg * water_specifichea
by Faaak 6y ago
A simple example I used recently in order to guesstimate how much energy is needed to heat 300liters of water by 5K:
You have: 5K * 300kg * water_specificheat
You want: kWh
* 1.7433333
really easy to use.
How much power could you obtain with a small water turbine if you had 10m of head and 1l/s ? Easy !
You have: 10m * 1kg/s * gravity
You want: W
* 98.0665
- deleted 6y ago[deleted]
- FlyMoreRockets 6y agoI do these kind of calculations all of the time and never realize units had this level of functionality. Wow, thanks Faaak!
- zwog 6y agoThanks, I did not know that units is able to work with constants. I always used Insect[0] for this. 0: https://github.com/sharkdp/insect https://github.com/sharkdp/insect
- bombcar 6y agoI kept reading this as “water specific cheat” and was really confused.
- arthurcolle 6y ago~ units 586 units, 56 prefixes You have: 50m * 1kg/s * gravity unknown unit 'gravity' how did you get gravity?
- zouhair 6y ago$ units Currency exchange rates from FloatRates (USD base) on 2020-12-21 3677 units, 109 prefixes, 114 nonlinear units You have: 10m * 1kg/s * gravity You want: W * 98.0665 / 0.010197162 You have: You lack some units and prefixes.
- arthurcolle 6y agoHow do you get the other units/prefixes? EDIT: Figured it out, just had to brew install gnu-units