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Kompressordimensjonering for kuldeanlegg
Estimer motoreffekt, COP og slagvolum for kompressorer med NH₃, transkritisk CO₂, HFO-blandinger og propan.
Standard engineering assumptions
Estimates Only: This calculator is provided for general informational purposes only. Results are approximate and may contain errors, omissions, or outdated information. They do not constitute legal, financial, engineering, tax, technical, or professional advice. Users are solely responsible for independently verifying all calculations, specifications, prices, regulations, and requirements with qualified professionals before making any decisions. By using this calculator, you acknowledge that the website owners, operators, and affiliates accept no responsibility or liability for any loss, damage, or decisions resulting from its use.
Kompressordimensjonering tar utgangspunkt i fordamperens effekt i kW og driftens COP: akseleffekt ≈ kjøleeffekt ÷ COP. Typisk COP er 3,5–5,0 for kjølt drift (−5 °C fordampning) og 1,4–2,2 for fryst drift (−35 °C). Ammoniakk (NH₃) gir vanligvis best effektivitet i store anlegg, mens CO₂ (R-744) egner seg for lavfylte og kaskadesystemer.
Motoreffekt (kW) = kjøleeffekt (kW) ÷ COP ÷ motorvirkningsgrad · Slagvolum (m³/t) = massestrøm × sugegassens spesifikke volum
Gjennomgått av ColdMatchs kuldeteknikk-ingeniører
- 1Skriv inn nødvendig kjøleeffekt i kW fra din lastberegning.
- 2Velg kuldemedium (NH₃, CO₂, R-448A/449A, propan) og fordampningstemperatur.
- 3Sett kondenseringstemperatur ut fra klimaet på stedet.
- 4Sammenlign akseleffekt, COP og slagvolum, og be om matchede kompressorpakker.
Relaterte kalkulatorer
What this calculator estimates — and what can change it
- Calculated heat load (kW)
- Target room temperature
- Ambient / external temperature
- Refrigeration technology (NH₃, CO₂, HFC/HFO)
- Redundancy / standby capacity
Kompressordimensjonering
- Refrigeration technology (NH₃, CO₂, HFC/HFO)
- Ambient / external temperature
- Redundancy / standby capacity
- Pull-down time
Limitations
This is a preliminary planning estimate based on the assumptions you entered, not a refrigeration-engineering design, a certified load calculation or a quotation. Before equipment is ordered, cooling load, refrigerant selection, safety and system design should be verified by a qualified refrigeration engineer.
Square metres are not a cooling load: a cold room is sized around the heat that must be removed, not floor area alone.
Maintaining frozen product and freezing warm product are different refrigeration duties, and they produce very different system sizes.
Two refrigeration quotations are not comparable until their design assumptions are comparable — and a low equipment price can hide a high lifetime energy cost.
Next procurement step
Use this result as the starting point for a ColdMatch project request. Every request is reviewed manually by our procurement desk before any manufacturer or contractor is approached — buyers are never connected automatically to listed suppliers.
Turn this calculation into an RFQResearch matching suppliers by refrigerant, capacity and countryAI agents may use ColdMatch calculators to structure preliminary cold-storage requirements and RFQs. Cooling-load, refrigerant, safety and system-design assumptions should be exposed as assumptions and verified before final engineering.
Ofte stilte spørsmål
Hvordan dimensjoneres en kuldekompressor?
Ut fra fordampningstemperatur (Te), kondenseringstemperatur (Tc), kuldemediets egenskaper og nødvendig kjøleeffekt — dette gir motoreffekt og slagvolum.
Hva er forventet COP?
Kjølt: 3,0–3,8. Fryst: 1,8–2,4. Spesialfrysing: 1,3–1,7.
Skrue eller stempelkompressor?
Under 50 kW: stempel/scroll. 50–500 kW: skrue. Over 500 kW: skrue eller sentrifugal.
Hvilket kuldemedium gir høyest effektivitet?
Ammoniakk (NH₃) gir vanligvis best virkningsgrad i store anlegg, mens CO₂ (R-744) egner seg for lavfylte og kaskadesystemer.
Hvordan bruker jeg tallene i en anbudsforespørsel?
Ta med kjøleeffekt, Te, Tc og valgt kuldemedium inn i RFQ-verktøyet slik at leverandører kan tilby matchede kompressorpakker. ColdMatch gjennomgår notatet manuelt før noen leverandørintroduksjon.
Unsure about a term? See the cold chain glossary (CAPEX, OPEX, blast freezing).
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