Come Converti Kilowatts
A Cavalli Vapore, BTU/hr, e More
Get il FormulasA 10 kW electric motor, un 13.4 hp engine, e un 34,100 BTU/hr heater all produce il same power. Convertendo tra these units e essential per comparing equipment, sizing systems, e comprendere specifications across different industries.
Step-da-Step Conversions
Kilowatts un Cavalli Vapore
- Find your power in kilowatts (e.g., 75 kW)
- Multiply da 1.341
- Risultato: 75 × 1.341 = 100.6 hp
Cavalli Vapore un Kilowatts
- Find your power in cavalli vapore (e.g., 200 hp)
- Divide da 1.341 (o multiply da 0.746)
- Risultato: 200 ÷ 1.341 = 149.2 kW
Kilowatts un BTU/ora
- Find your power in kilowatts (e.g., 5 kW)
- Multiply da 3,412
- Risultato: 5 × 3,412 = 17,060 BTU/hr
Comprehensive Conversione Table
| kW | Watt | hp (mech) | PS (metric) | BTU/hr |
|---|---|---|---|---|
| 0.5 | 500 | 0.67 | 0.68 | 1,706 |
| 1 | 1,000 | 1.34 | 1.36 | 3,412 |
| 2 | 2,000 | 2.68 | 2.72 | 6,824 |
| 5 | 5,000 | 6.71 | 6.80 | 17,060 |
| 10 | 10,000 | 13.41 | 13.60 | 34,120 |
| 25 | 25,000 | 33.53 | 33.99 | 85,300 |
| 50 | 50,000 | 67.05 | 67.98 | 170,600 |
| 100 | 100,000 | 134.10 | 135.96 | 341,200 |
Comuni Applicazioni
Electric Motors
Motors often list both kW e hp:
| Motor Size | kW | hp |
|---|---|---|
| Small pump | 0.37 | 0.5 |
| Fan motor | 0.75 | 1 |
| Industrial pump | 7.5 | 10 |
| Compressor | 22 | 30 |
| Large industrial | 75 | 100 |
HVAC Systems
Heating/cooling capacity often uses BTU/hr o tons:
- 1 ton di cooling = 12,000 BTU/hr = 3.52 kW
- Residential AC: 2-5 tons (7-17.5 kW)
- Space heater: 1-2 kW (3,400-6,800 BTU/hr)
Power vs Energy
Don't confuse power (kW) con energy (kWh):
- Power (kW): Rate di energy usare
- Energy (kWh): Total energy consumed over time
Energy = Power × Time
Esempio: A 2 kW heater running per 3 ore uses 6 kWh di energy.
Electricity Cost
Utility bills charge per energy (kWh), not power (kW). A 1 kW device costs il same per ora whether it's un 1 kW heater o ten 100W bulbs.
Regional Variations
| Region | Power Unita | Application |
|---|---|---|
| US/UK | hp (mechanical) | Vehicles, motors |
| Europe | kW, PS | Vehicles, appliances |
| Japan | kW, PS | Mixed usage |
| HVAC (US) | BTU/hr, tons | Heating/cooling |
| HVAC (intl) | kW | Heating/cooling |
| Scientific | W, kW | All applications |
Conclusione
Convertendo kilowatts requires different factors per different target units: ×1.341 per cavalli vapore, ×1.360 per metric cavalli vapore (PS), e ×3,412 per BTU/ora. Il kilowatt e il universal scientific unit, while cavalli vapore dominates automotive applications e BTU/ora e standard per HVAC in il US. Comprendere these conversioni helps compare equipment across different specification systems.