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Energy-efficient industrial refrigeration plant

Strumento di progettazione

Calcolatore di confronto CO2 vs ammoniaca

Confronta la refrigerazione industriale a CO2 e ad ammoniaca a parità di potenza frigorifera, clima e tariffa. Fornisce CAPEX indicativo, costi annui di energia e manutenzione e costo totale di proprietà su 10 anni.

Confronto indicativo

ParametroCO2Ammoniaca
COP del sistema1.901.90
Potenza assorbita316 kW316 kW
CAPEX indicativoUSD 690,000USD 600,000
Costo energetico annuoUSD 227,368USD 227,368
Manutenzione annuaUSD 24,150USD 27,000
TCO su 10 anniUSD 3,205,184USD 3,143,684
Differenza su 10 anni
USD 61,500
TCO inferiore in questo scenario
Ammoniaca

Esclude progettazione per sicurezza e conformità normativa, opere della sala macchine, autorizzazioni, benefici economici del recupero di calore e tariffe locali della manodopera: tutti fattori che possono modificare il risultato.

Chiedi ai fornitori offerte per entrambi i refrigeranti a parità di potenza frigorifera e condizioni al contorno: ColdMatch struttura la richiesta di offerta per un confronto omogeneo.

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ColdMatch Group is a supplier-neutral procurement platform — not a manufacturer, contractor or lender.

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 Results are approximate and may contain errors, omissions, or outdated information.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

Calculation method

  1. 1. COP stagionale = COP dell'applicazione (3.1 refrigerazione · 1.9 surgelati · 1.4 surgelazione rapida) ÷ penalizzazione climatica (CO₂ 0.94–1.24 · NH₃ 1.00–1.06)
  2. 2. Potenza dei compressori (kW) = potenza frigorifera ÷ COP
  3. 3. Costo energetico annuo = kW dei compressori × ore di funzionamento × tariffa
  4. 4. Manutenzione = capex × 3.5% (CO₂) o 4.5% (NH₃)
  5. 5. TCO su 10 anni = capex + 10 × (energia + manutenzione)

Calcolo in kW. Unità imperiali: 1 kW = 3,412 BTU/h = 0.284 TR; potenza all'albero del compressore 1 kW = 1.34 hp.

Worked example

Impianto da 600 kW per lo stoccaggio di prodotti surgelati in un clima caldo (picco ~38 °C), 6,000 ore di funzionamento.

Inputs

  • • Potenza frigorifera 600 kW (171 TR · 2.05 milioni di BTU/h)
  • • COP per surgelati 1.9
  • • Clima caldo: CO₂ ×1.12 · NH₃ ×1.03

Calculation

  • • COP CO₂ = 1.9 ÷ 1.12 = 1.70 → 354 kW → 2.12 GWh/yr
  • • COP NH₃ = 1.9 ÷ 1.03 = 1.84 → 325 kW → 1.95 GWh/yr

In questo clima l'ammoniaca consuma ≈ 8% di energia in meno; nei climi freschi la penalizzazione della CO₂ scompare e il divario si inverte.

Limitations

  • • Le penalizzazioni climatiche sono medie stagionali; compressione parallela, eiettori o gas cooler adiabatici riducono la penalizzazione della CO₂ nei climi caldi.
  • • La classificazione delle zone ai fini della sicurezza, i limiti di carica e i costi della sala macchine e delle autorizzazioni variano da paese a paese e non sono dettagliati.
  • • Il valore del recupero di calore (spesso elevato per la CO₂) non viene conteggiato.

Illustrative planning result only. Confirm the final design, duty, equipment selection and performance with a qualified refrigeration engineer and supplier quotation.

Domande degli acquirenti

Per la refrigerazione industriale è meglio CO2 o ammoniaca?
Nessuna delle due è sempre migliore. L'ammoniaca è generalmente più efficiente per potenze frigorifere elevate e nei climi caldi, mentre la CO2 evita le restrizioni legate alla tossicità, si adatta a sale macchine più compatte e offre buone prestazioni nei climi freschi e temperati, soprattutto con compressione parallela. La scelta dipende da potenza frigorifera, clima, norme di ubicazione e competenze disponibili per l'assistenza tecnica.
Perché il clima influisce tanto sulla CO2?
I sistemi transcritici a CO2 perdono efficienza al di sopra del punto critico: temperature ambiente più elevate aumentano quindi il consumo energetico, salvo l'impiego di compressione parallela, eiettori o gas cooler adiabatici. Nei climi caldi una configurazione in cascata o un impianto ad ammoniaca risulta spesso più vantaggioso sul piano energetico.
Cosa non è incluso in questo confronto?
Progettazione per sicurezza e conformità normativa, costruzione della sala macchine, autorizzazioni, differenze nei costi assicurativi, formazione degli operatori, benefici economici del recupero di calore e tariffe locali della manodopera. Questi fattori possono modificare il risultato e devono essere quantificati dai fornitori per il sito specifico.
ColdMatch può consigliare un refrigerante?
ColdMatch è neutrale rispetto ai refrigeranti. Aiutiamo a strutturare una richiesta di offerta che chieda ai fornitori di quotare entrambe le opzioni a parità di potenza frigorifera, ipotesi e condizioni al contorno, per confrontarle sulla base di dati concreti anziché di preferenze.

Indicative planning figures only — final sizing belongs to the supplier's detailed design. Request comparable supplier quotes · all cold chain tools · common cold chain questions

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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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