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Kalkulator doboru sprężarki chłodniczej

Oszacuj moc silnika sprężarki, COP i wydajność objętościową na podstawie mocy chłodniczej i temperatur pracy. Wyniki są szacunkami do planowania, a nie ostatecznym doborem urządzeń.

Industrial refrigeration plant room with compressors and insulated pipework
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Scenario

Standard engineering assumptions

Moc silnika
56.5 kW
Base case
COP
2.66
Wyższy = większa efektywność
Wydajność objętościowa teoretyczna
~480 m³/h
Typ sprężarki
Sprężarka śrubowa
Uzyskaj oferty dostawców Więcej kalkulatorów

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 Results are approximate and may contain errors, omissions, or outdated information.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

Krótka odpowiedź

Dobór sprężarki zaczyna się od mocy parownika w kW i roboczego COP: moc na wale ≈ moc chłodnicza ÷ COP. Typowy COP wynosi 3.5–5.0 dla chłodzenia (parowanie przy −5 °C) i 1.4–2.2 dla zastosowań mroźniczych (−35 °C). Amoniak (NH₃) zwykle zapewnia najwyższą efektywność dużych instalacji, a CO₂ (R-744) nadaje się do układów o małym napełnieniu i układów kaskadowych.

Zastosowany wzór

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

Zweryfikowano przez inżynierów chłodnictwa ColdMatch

Jak korzystać z kalkulatora
  1. 1Wprowadź wymaganą moc chłodniczą w kW z obliczeń obciążenia.
  2. 2Wybierz czynnik chłodniczy (NH₃, CO₂, R-448A/449A, propan) i temperaturę parowania.
  3. 3Ustaw temperaturę skraplania odpowiednią dla Twojego klimatu.
  4. 4Porównaj moc na wale, COP i wydajność objętościową, a następnie zapytaj o dopasowane zespoły sprężarkowe.

Powiązane kalkulatory

Wielkość komory chłodniczejObciążenie chłodniczeObciążenie cieplne komoryKoszt energii elektrycznej

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

Dobór sprężarki

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.

Najczęściej zadawane pytania

Jak określa się wielkość sprężarki?

Na podstawie Te, Tc, właściwości czynnika chłodniczego i mocy chłodniczej — wyznaczając moc silnika oraz wydajność objętościową.

Jakiego COP można oczekiwać?

Chłodzenie: 3.0–3.8. Przechowywanie mrożonek: 1.8–2.4. Zamrażanie szokowe: 1.3–1.7.

Sprężarka śrubowa czy tłokowa?

<50 kW tłokowa/spiralna; 50–500 kW śrubowa; >500 kW śrubowa lub odśrodkowa.

Jak szacowane są moc silnika i wydajność objętościowa?

Na podstawie mocy chłodniczej oraz temperatur parowania i skraplania narzędzie szacuje pracę właściwą obiegu — zależną od czynnika chłodniczego — oraz strumień masowy potrzebny do uzyskania wymaganej mocy. Moc silnika wynika ze strumienia masowego × pracy właściwej ÷ sprawności silnika, a wydajność objętościowa ze strumienia masowego i gęstości na ssaniu. Różne czynniki wymagają bardzo różnej wydajności objętościowej przy tej samej mocy chłodniczej.

Dlaczego dobór dostawcy różni się od tego szacunku?

Dostawca dobiera urządzenie na podstawie rzeczywistej mapy charakterystyk sprężarki w dokładnie określonym zakresie pracy, uwzględniając stopnie regulacji wydajności, gospodarkę olejową i własne zapasy. Ten kalkulator służy do wstępnej oceny: sprawdź nim, czy oferowana maszyna mieści się w odpowiednim przedziale, zanim dostawca potwierdzi dobór.

Co sprawdzić przed zaakceptowaniem doboru sprężarki?

Pełny zakres pracy — nie tylko jeden punkt — sprawność przy częściowym obciążeniu, stopnie regulacji wydajności, dostępność czynnika i obsługi serwisowej w Twoim kraju. Poproś o moc pobieraną w każdym punkcie pracy, aby móc porównać koszty energii na jednakowej podstawie w kalkulatorze TCO.

Jak COP zmienia się wraz z różnicą temperatur?

Im mniejsza różnica między temperaturą parowania a skraplania, tym wyższy COP: komory chłodnicze zwykle osiągają 3.0–3.8, magazyny mroźnicze 1.8–2.4, a zamrażanie szokowe 1.3–1.7. Dlatego przyjmowanie zbyt dużej różnicy temperatur lub dopuszczanie zbyt wysokiego ciśnienia skraplania oznacza realne koszty w każdej godzinie pracy.

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
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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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