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Výpočet tepelné zátěže chlazení v kW

Úplný rozpis tepelné zátěže v kW — prostup obálkou, zchlazení produktů, infiltrace a ostatní tepelné zisky pro chladírny a mrazírny.

Cold-room insulated panel construction and material inspection
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Scenario

Standard engineering assumptions

Chladicí výkon v kW vyjadřuje teplo odváděné z prostoru — nikoli elektrický příkon v kW. Elektrický příkon ≈ tepelná zátěž ÷ COP systému, plus příkony pomocných zařízení.

Pouze orientační odhad pro plánování. Konečný výkon, výběr zařízení, chladivo, bezpečnostní požadavky, cenu a energetické parametry musí potvrdit vybraný kvalifikovaný dodavatel chladicí techniky.

Návrhový chladicí výkon
48.91 kW
13.91 TR · Base case
Prostup tepla
11.52 kW
36%
Tepelná zátěž od produktů
12.5 kW
39%
Infiltrace
3.74 kW
12%
Vnitřní tepelné zisky + ventilátory + odtávání
4.14 kW
13%
Průměrná zátěž za 24 h
31.9 kW
765.5 kWh/day
Rozmezí nejistoty odhadu
36.35–61.47 kW
±26% · 16.3 W/m³
Získat nabídky dodavatelů Další kalkulačky

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 Results are approximate and may contain errors, omissions, or outdated information.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

Stručná odpověď

Celková tepelná zátěž chlazení je součtem čtyř složek: prostupu tepla obálkou, zchlazení produktů, infiltrace vzduchu dveřmi a vnitřních zisků od ventilátorů, osvětlení, vysokozdvižných vozíků a osob. V typickém chladírenském skladu tvoří prostup tepla 25–40 %, produkty 20–45 %, infiltrace 15–30 % a vnitřní zisky 10–20 % celku.

Použitý vzorec

Q total = Q transmission + Q product + Q infiltration + Q internal · Q transmission = U × A × ΔT

Ověřeno chladírenskými techniky ColdMatch

Jak používat tuto kalkulačku
  1. 1Zadejte rozměry boxu, tloušťku panelů a návrhovou okolní teplotu.
  2. 2Doplňte denní příjem produktů a jejich vstupní teplotu.
  3. 3Nastavte počet otevření dveří za den a tepelnou zátěž vnitřního vybavení.
  4. 4Zkontrolujte rozpis jednotlivých složek a celkový výkon v kW použijte při výběru zařízení.

Související kalkulačky

Velikost chladicího boxuChladicí zátěžNáklady na elektřinuDimenzování kompresoru

What this calculator estimates — and what can change it

Required inputs
  • •Room dimensions
  • •Stored product
  • •Incoming product temperature
  • •Target room temperature
  • •Daily throughput (t/day)
  • •Door openings per day
Calculated output

Tepelná zátěž chlazení

What can change the result
  • •Freezing duty (latent heat)
  • •Incoming product temperature
  • •Humidity target
  • •Door openings per day
  • •Panel insulation thickness

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.

Časté dotazy

Jaké jsou hlavní složky zátěže?

Prostup tepla, zchlazení produktů, infiltrace, osvětlení a motory a přítomnost osob.

Jaký součinitel prostupu tepla U použít pro panely?

Chlazení 0.25–0.35, mražené skladování 0.18–0.22, šokové zmrazování 0.15 W/m²K nebo nižší.

O kolik zátěž zvyšuje otevírání dveří?

Ve vytížených distribučních centrech může infiltrace dosáhnout 15–25% celkové zátěže.

Jak kalkulačka sestavuje celkovou zátěž?

Sčítá čtyři složky — prostup tepla obálkou (U-value × surface × temperature difference), zchlazení produktů, infiltraci teplého vzduchu dveřmi a vnitřní zisky od osob, osvětlení a ventilátorů — a poté přidá návrhovou rezervu. Výsledkem je předběžný požadovaný výkon v kW, uvedený jako interval místo jediného čísla.

Jaké údaje zpřesní odhad?

Naměřené otevírání dveří, skutečné vstupní teploty produktů a denní příjem, skutečný součinitel prostupu tepla U z technického listu panelu, místní návrhová okolní teplota a příkon ventilátorů výparníku. Každý vstup může posunout výsledek o 5–15%, proto nástroj uvádí interval, nikoli zdánlivě přesnou hodnotu.

Mám koupit zařízení dimenzované přesně na tuto zátěž?

Ne. Předběžná zátěž je výchozí bod: dodavatelé přidávají vlastní rezervy pro odtávání, nesoudobost zatížení, částečné zatížení a záložní výkon. Hodnotu použijte jako jednotný základ zadání pro všechny dodavatele, aby byly nabídky srovnatelné — nikoli jako konečnou velikost zařízení.

Jak otevírání dveří mění výsledek?

Ve vytížených distribučních centrech může samotná infiltrace dosáhnout 15–25% celkové zátěže. Pokud se dveře často otevírají nebo nemají lamelové clony, použijte nejprve kalkulačku infiltrace dveřmi a její výsledek přeneste do výpočtu — rozdíl mezi uzavřeným a vytíženým boxem bývá často největší jednotlivou položkou zátěže.

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 Capacity Planning — Pallets, m³ and Throughput | ColdMatch
    Cold storage capacity planning for buyers: pallet positions, m³, throughput, headroom and how to plan for 5-year demand growth. Free RFQ Builder.
  • 12 Common Cold Storage Project Mistakes (and How to Avoid Them) | ColdMatch
    The 12 most expensive mistakes buyers make on cold storage and refrigeration projects — and how to avoid each one before you issue the RFQ.

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
Industrial Refrigeration Systems Cold Rooms Generators & Backup Power All solutions
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Vaše vstupy z kalkulačky předáme specialistovi ColdMatch na výběr dodavatelů. Ten projekt posoudí ještě před zahájením vyhledávání dodavatelů. Nezávazně.

Vaše údaje nikdy nesdílíme. Slouží pouze k přípravě zadání pro vybrané dodavatele.

Send these inputs to an RFQ

Your size, cost and load inputs are copied into the quote form, so you don't type them twice. Nothing is sent until you review and submit.

From the blogRead the guide behind this calculator
Project request

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Send your requirements. A ColdMatch specialist reviews every request, prepares a brief and introduces qualified suppliers — free for qualified buyers.

ColdMatch Group — industrial cooling and cold chain procurement platform
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Because we care more.

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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