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冷凍機の選定・能力計算|圧縮機の動力とCOP

NH₃、CO₂トランスクリティカル、HFO系混合冷媒、プロパンの各システムについて、圧縮機の軸動力、COP、理論吐出量を概算できます。

Industrial refrigeration plant room with compressors and insulated pipework
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Scenario

Standard engineering assumptions

電動機動力
56.5 kW
Base case
COP(成績係数)
2.66
数値が高いほど高効率
理論吐出量
~480 m³/h
圧縮機タイプ
スクリュー式圧縮機
サプライヤーの見積もりを取得 他の計算ツール

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 Results are approximate and may contain errors, omissions, or outdated information.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

クイックアンサー

圧縮機の選定は、蒸発器側の冷却能力(kW)と運転COPを起点とします:軸動力≈冷却能力÷COP。冷蔵用途(蒸発温度約−5℃)の典型的なCOPは3.5〜5.0、冷凍用途(約−35℃)では1.4〜2.2です。アンモニア(NH₃)は大規模プラントで最も効率が高い傾向があり、CO₂(R-744)は低充填量システムやカスケードシステムに適しています。

使用する計算式

電動機動力(kW)=冷却能力(kW)÷COP÷電動機効率・理論吐出量(m³/h)=質量流量×吸入比容積

ColdMatchの冷凍技術エンジニアが監修

この計算ツールの使い方
  1. 1負荷計算の結果をもとに、必要な冷却能力(kW)を入力します。
  2. 2冷媒(NH₃、CO₂、R-448A/449A、プロパン)と蒸発温度を選択します。
  3. 3現地の気候に応じた凝縮温度を設定します。
  4. 4軸動力・COP・吐出量を比較し、条件に合った圧縮機パッケージを問い合わせます。

関連する計算ツール

冷蔵倉庫の容積冷却能力冷却負荷冷凍熱負荷電気代プロジェクト資金調達

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

圧縮機選定

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.

よくある質問

冷凍機・圧縮機はどう選定しますか?

蒸発温度(Te)、凝縮温度(Tc)、冷媒の特性、必要な冷却能力から総合的に算出し、軸動力と理論吐出量を導き出します。

COPの目安はどのくらいですか?

冷蔵用途(蒸発温度約−5℃)でCOP3.5〜5.0、冷凍用途(約−35℃)で1.4〜2.2が目安です。冷媒やシステム効率によって変動します。

スクリュー式とレシプロ/スクロール式、どちらを選ぶべきですか?

軸動力が約50kW未満であればレシプロ式やスクロール式、50〜500kWの範囲ではスクリュー式、500kWを超える場合はスクリュー式または遠心式の集中プラントが一般的です。

NH₃とCO₂はどのように使い分けますか?

アンモニア(NH₃)は大規模プラントで最も効率が高い傾向がありますが、充填量や安全対策への要求が高くなります。CO₂(R-744)は低充填量システムやカスケードシステムに適しており、現場の規制や運用体制を踏まえて選定する必要があります。

この結果をどのように見積もり依頼に活かせますか?

軸動力・COP・吐出量の結果に、冷媒種別と蒸発/凝縮温度を添えてプロジェクト概要としてColdMatchに提出してください。ColdMatchは内容を人の目で確認したうえで、条件に合う独立系圧縮機サプライヤーの紹介を検討します。価格を保証するものではありません。

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
Industrial Refrigeration Systems Cold Rooms Generators & Backup Power All solutions
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計算結果はColdMatchの調達専門スタッフに送られ、サプライヤー選定を始める前にプロジェクト内容を確認します。ご相談は無料で、契約義務は一切発生しません。

お客様の情報を第三者と共有することはありません。マッチしたサプライヤーへの案内のみに使用します。

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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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