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Calculator dimensionare compresor frigorific

Estimează puterea motorului compresorului, COP și debitul volumic aspirat pe baza puterii frigorifice și a temperaturilor de funcționare. Rezultatele sunt estimări de planificare, nu selecții finale de echipamente.

Industrial refrigeration plant room with compressors and insulated pipework
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Scenario

Standard engineering assumptions

Puterea motorului
56.5 kW
Base case
COP
2.66
Mai mare = mai eficient
Volum măturat
~480 m³/h
Familie de compresoare
Compresor cu șurub
Solicită oferte de la furnizori Alte calculatoare

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 Results are approximate and may contain errors, omissions, or outdated information.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.

Răspuns rapid

Dimensionarea compresorului pornește de la puterea evaporatorului în kW și COP de funcționare: puterea la arbore ≈ puterea frigorifică ÷ COP. COP uzual este 3.5–5.0 pentru refrigerare (evaporare la −5 °C) și 1.4–2.2 pentru congelare (−35 °C). Amoniacul (NH₃) oferă de obicei cea mai bună eficiență pentru instalațiile mari, iar CO₂ (R-744) este potrivit pentru sisteme cu încărcătură redusă de agent frigorific și sisteme în cascadă.

Formula utilizată

Motor power (kW) = cooling duty (kW) ÷ COP ÷ motor efficiency · Displacement (m³/h) = mass flow × suction specific volume

Verificat de inginerii frigorifiști ColdMatch

Cum se utilizează acest calculator
  1. 1Introdu puterea frigorifică necesară în kW din calculul sarcinii.
  2. 2Alege agentul frigorific (NH₃, CO₂, R-448A/449A, propan) și temperatura de evaporare.
  3. 3Setează temperatura de condensare pentru clima locală.
  4. 4Compară puterea la arbore, COP și debitul volumic aspirat, apoi solicită grupuri de compresoare adecvate.

Calculatoare conexe

Dimensiuni cameră frigorificăNecesar frigorificSarcină termică frigorificăCostul energiei electrice

What this calculator estimates — and what can change it

Required inputs
  • •Calculated heat load (kW)
  • •Target room temperature
  • •Ambient / external temperature
  • •Refrigeration technology (NH₃, CO₂, HFC/HFO)
  • •Redundancy / standby capacity
Calculated output

Dimensionarea compresorului

What can change the result
  • •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 country

AI 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.

Întrebări frecvente

Cum se determină dimensiunea compresorului?

Din Te, Tc, proprietățile agentului frigorific și puterea frigorifică — rezultând puterea motorului și debitul volumic aspirat.

Ce COP este de așteptat?

Refrigerare: 3.0–3.8. Congelare: 1.8–2.4. Congelare rapidă: 1.3–1.7.

Compresor cu șurub sau cu piston?

<50 kW cu piston/scroll; 50–500 kW cu șurub; >500 kW cu șurub sau centrifugal.

Cum se estimează puterea motorului și debitul volumic aspirat?

Din puterea frigorifică și temperaturile de evaporare/condensare, instrumentul estimează lucrul mecanic specific al ciclului — care depinde de agentul frigorific — și debitul masic necesar pentru asigurarea puterii. Puterea motorului rezultă din debitul masic × lucrul mecanic specific ÷ randamentul motorului, iar debitul volumic aspirat din debitul masic și densitatea la aspirație. Agenți frigorifici diferiți necesită debite volumice foarte diferite pentru aceeași putere.

De ce diferă selecția furnizorului de această estimare?

Furnizorul dimensionează pe baza unei hărți reale de performanță a compresorului, pentru domeniul exact de funcționare, incluzând treptele de sarcină parțială, gestionarea uleiului și propriile marje. Acest calculator oferă o estimare preliminară: folosește-l pentru a verifica dacă utilajul ofertat este în intervalul potrivit înainte ca furnizorul să confirme selecția.

Ce trebuie să verific înainte de a accepta selecția unui compresor?

Întregul domeniu de funcționare — nu doar un punct — eficiența la sarcină parțială, treptele de putere, disponibilitatea agentului frigorific și acoperirea de service în țara ta. Solicită puterea absorbită în fiecare punct de funcționare, astfel încât costurile energetice să poată fi comparate pe aceeași bază în calculatorul TCO.

Cum variază COP cu diferența dintre temperaturile de condensare și evaporare?

Cu cât diferența dintre temperatura de evaporare și cea de condensare este mai mică, cu atât COP este mai mare: camerele de refrigerare ating de regulă 3.0–3.8, depozitarea produselor congelate 1.8–2.4, iar congelarea rapidă 1.3–1.7. De aceea, supradimensionarea acestei diferențe — sau permiterea unei presiuni de condensare prea mari — generează costuri reale în fiecare oră de funcționare.

Related planning guides

Go deeper before you build your RFQ:

  • Refrigeration Equipment Selection Guide — Compressors, Condensers & More | ColdMatch
    How to select refrigeration equipment: compressors (screw, reciprocating, scroll), condensers, evaporators, valves and controls. Free RFQ Builder.
  • Cold Storage Installation Guide — Site, Sequence & Commissioning | ColdMatch
    Cold storage and refrigeration installation guide: site prep, sequence of works, commissioning, FAT/SAT and handover. Free RFQ Builder for installers and EPCs.
  • Cold Storage Maintenance Guide — Preventive & Predictive | ColdMatch
    Preventive and predictive maintenance for cold storage and industrial refrigeration: intervals, KPIs, spares, IoT monitoring and typical costs.

Unsure about a term? See the cold chain glossary (CAPEX, OPEX, blast freezing).

Next steps for your project
  • Cold Room Cost Benchmarks
  • How to Write a Cold Storage RFQ
  • Cold Storage Project Cost Center
Related solutions
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Vom trimite datele introduse în calculator unui specialist în achiziții ColdMatch, care verifică proiectul înainte de începerea căutării furnizorilor. Fără obligații.

Nu divulgăm niciodată datele dvs. Sunt folosite doar pentru informarea furnizorilor selectați.

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ColdMatch Group — industrial cooling and cold chain procurement platform
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ColdMatch Group is the industrial refrigeration and cold-chain procurement platform of Global B2B Group, where commercial and industrial buyers build a project and submit an RFQ; the ColdMatch team validates and organizes it, contacts suitable refrigeration technology and equipment suppliers on the buyer's behalf, and presents organized responses through ColdMatch.

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Business and supplier disclaimer

ColdMatch Group is the industrial refrigeration and cold-chain procurement platform of Global B2B Group, where commercial and industrial buyers build a project and submit an RFQ; the ColdMatch team validates and organizes it, contacts suitable refrigeration technology and equipment suppliers on the buyer's behalf, and presents organized responses through ColdMatch. It helps buyers prepare technical requirements and structured RFQs before suitable third-party suppliers, manufacturers, EPC contractors and turnkey providers are introduced manually. ColdMatch is not an equipment manufacturer, reseller, distributor, EPC contractor, installer, insurer, lender, bank or financial advisor, and is not a party to any supply, construction or finance contract. Quotes, equipment and services are provided solely by the matched third-party supplier, who is solely responsible for quality, delivery, installation, safety and performance. ColdMatch makes no guarantee of availability, price, quality or approval and disclaims all liability for any service provided by a supplier or other third party. See Terms and How ColdMatch Works.

Financing disclaimer: ColdMatch does not provide or guarantee finance. Any financing pathway is evaluated and supplied solely by independent third-party providers under their own checks and terms. See Terms.

ColdMatch Group is the industrial refrigeration and cold-chain procurement platform of Global B2B Group, where commercial and industrial buyers build a project and submit an RFQ; the ColdMatch team validates and organizes it, contacts suitable refrigeration technology and equipment suppliers on the buyer's behalf, and presents organized responses through ColdMatch. It helps buyers prepare technical requirements and structured RFQs before suitable third-party suppliers, manufacturers, EPC contractors and turnkey providers are introduced manually. ColdMatch is not an equipment manufacturer, reseller, distributor, EPC contractor, installer, insurer, lender, bank or financial advisor, and is not a party to any supply, construction or finance contract. Quotes, equipment and services are provided solely by the matched third-party supplier, who is solely responsible for quality, delivery, installation, safety and performance. ColdMatch makes no guarantee of availability, price, quality or approval and disclaims all liability for any service provided by a supplier or other third party. See Terms and How ColdMatch Works.

Disclaimer: ColdMatch Group is the specialized industrial refrigeration and cold-chain procurement platform of Global B2B Group. ColdMatch Group is not a manufacturer, reseller, distributor, EPC contractor, installer, insurer, lender, bank, credit provider, financial advisor, investment advisor, underwriter or regulated financial services provider. Any financing, leasing, trade finance, working capital or project-finance option mentioned on this website is provided solely by independent third-party financing providers, subject to their own eligibility checks, KYC, due diligence, compliance review, approval, terms and documentation. ColdMatch Group does not provide financial advice, does not arrange regulated financial products, does not guarantee financing approval, and is not responsible for any financing decision, offer, rejection, delay, cost, term or outcome. Quotes, equipment, services, delivery, installation, commissioning, warranties and project performance are provided solely by independent third-party suppliers, EPC contractors or service providers. See Terms.

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