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Central de refrigeração industrial com eficiência energética

Ferramenta de planeamento

Calculadora de comparação CO2 vs amónia

Compare a refrigeração industrial a CO2 e a amónia com a mesma carga, clima e tarifa. Os resultados incluem CAPEX indicativo, custo anual de energia e manutenção e custo total de propriedade a 10 anos.

Comparação indicativa

MétricaCO2Amónia
COP do sistema1.901.90
Potência absorvida316 kW316 kW
CAPEX indicativoUSD 690,000USD 600,000
Energia anualUSD 227,368USD 227,368
Manutenção anualUSD 24,150USD 27,000
TCO a 10 anosUSD 3,205,184USD 3,143,684
Diferença a 10 anos
USD 61,500
TCO mais baixo neste cenário
Amónia

Exclui engenharia de segurança e conformidade, obras de casa de máquinas, licenciamento, créditos de recuperação de calor e custos de mão de obra local — todos podem alterar o resultado.

Peça aos fornecedores que cotem ambos os fluidos frigorigéneos na mesma carga e condições de fronteira — a ColdMatch estrutura o pedido de orçamento para que a comparação seja justa.

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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 Results are approximate and may contain errors, omissions, or outdated information.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 sazonal = COP da aplicação (3,1 refrigerado · 1,9 congelado · 1,4 congelação rápida) ÷ penalização climática (CO₂ 0,94–1,24 · NH₃ 1,00–1,06)
  2. 2. Potência do compressor (kW) = carga de refrigeração ÷ COP
  3. 3. Energia anual = kW do compressor × horas de funcionamento × tarifa
  4. 4. Manutenção = CAPEX × 3,5% (CO₂) ou 4,5% (NH₃)
  5. 5. TCO a 10 anos = CAPEX + 10 × (energia + manutenção)

Calculado em kW. Imperial: 1 kW = 3.412 BTU/h = 0,284 TR; potência no veio do compressor 1 kW = 1,34 hp.

Worked example

Instalação de armazenamento congelado de 600 kW num clima quente (pico ~38 °C), 6.000 horas de funcionamento.

Inputs

  • • Carga 600 kW (171 TR · 2,05 milhões BTU/h)
  • • COP congelado 1,9
  • • Quente: CO₂ ×1,12 · NH₃ ×1,03

Calculation

  • • COP CO₂ = 1,9 ÷ 1,12 = 1,70 → 354 kW → 2,12 GWh/ano
  • • COP NH₃ = 1,9 ÷ 1,03 = 1,84 → 325 kW → 1,95 GWh/ano

A amónia consome cerca de 8% menos energia neste clima; em climas frios a penalização do CO₂ desaparece e a diferença inverte-se.

Limitations

  • • As penalizações climáticas são médias sazonais; a compressão paralela, ejetores ou gas coolers adiabáticos reduzem a penalização do CO₂ em climas quentes.
  • • As zonas de segurança, limites de carga, custos de casa de máquinas e licenciamento variam por país e não estão discriminados.
  • • O valor da recuperação de calor (frequentemente elevado no CO₂) não é creditado.

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

Perguntas de compradores

O CO2 ou a amónia é melhor para refrigeração industrial?
Nenhum é universalmente melhor. A amónia é geralmente mais eficiente em grandes cargas e climas quentes, enquanto o CO2 evita restrições de toxicidade, adapta-se a casas de máquinas mais compactas e tem bom desempenho em climas frios e temperados, especialmente com compressão paralela. A carga, o clima, as regras de localização e as competências de assistência disponíveis determinam a resposta.
Por que razão o clima afeta tanto o CO2?
Os sistemas transcríticos de CO2 perdem eficiência acima do ponto crítico, pelo que temperaturas ambiente mais elevadas aumentam o consumo de energia, a menos que se use compressão paralela, ejetores ou gas coolers adiabáticos. Em climas quentes, uma disposição em cascata ou uma instalação de amónia vence frequentemente em termos energéticos.
O que não está incluído nesta comparação?
Engenharia de segurança e conformidade, construção da casa de máquinas, licenciamento, diferenças de seguro, formação de operadores, créditos de recuperação de calor e custos de mão de obra local. Estes fatores podem alterar o resultado e devem ser orçamentados pelos fornecedores para o seu local específico.
A ColdMatch pode recomendar um fluido frigorigéneo?
A ColdMatch é neutra quanto ao fluido frigorigéneo. Ajudamos a estruturar um pedido de orçamento que solicita aos fornecedores cotações de ambas as opções com a mesma carga, pressupostos e condições de fronteira, para que possa compará-las com base em evidências e não em preferência.

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 — plataforma de compras de refrigeração industrial e cadeia de frio
ColdMatchGroup

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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