Tunnelluftmengde og antall vifter ut fra husets mål.
Gjør om bredde, sideveggshøyde og ønsket lufthastighet til nødvendig luftmengde (cfm) og antall vifter for tunnelventilasjon.
Inputs
Results
- Cross-section
- 36.4 m²
- Airflow
- 91.0 m³/s
- Peak cfm required
- 192818 cfm
- 48-inch fans (25k cfm)
- 8
193k cfm
Preliminary planning result, based on the inputs and assumptions shown.
Nødvendig tunnelluftmengde = husets bredde × sideveggshøyde × ønsket lufthastighet. Et tverrsnitt på 14 m × 2,6 m ved 2,5 m/s krever omtrent 91 m³/s (193 000 cfm), som tilsvarer omtrent åtte 48-tommers vifter på 25 000 cfm når innløpstap er medregnet.
Slik bruker du den
- Oppgi husets bredde og sideveggshøyde.
- Velg ønsket lufthastighet for ditt klima.
- Legg til 15 % for innløpstap før du kjøper vifter.
Scope of this tool
What this tool can and can't do
Tunnelluftmengde og antall vifter ut fra husets mål. is a planning tool for budget-stage and RFQ-stage decisions. It gives defensible numbers to compare suppliers against — it is not an engineering, veterinary or financing approval.
What it can do
- Size the required line capacity in tonnes per hour from annual tonnage, shifts and realistic uptime.
- Estimate connected load and specific energy consumption (kWh per tonne) by process stage.
- Show the effect of automation level, process type (pelleting versus extrusion) and utilisation on cost per tonne.
- Give an indicative CAPEX band and payback range for budgeting.
What it can't do
- Substitute for a vendor's guaranteed capacity or energy figures — those come with the equipment contract.
- Include site-specific electrical infrastructure, transformer upgrades, grid tariffs or generator backup unless you add them.
- Model your actual formula's grinding and conditioning behaviour, which changes energy per tonne materially.
- Serve as a bankable feasibility study or a financing document.
Required inputs
- · Target annual production in tonnes
- · Operating hours: shifts per day, days per year, expected uptime %
- · Process type (mash, pelleting, extrusion) and automation level
- · Energy tariff and labour cost if you want operating cost output
Example run
- · 60,000 t/year, 2 shifts, 300 days, 85% uptime
- · Pelleting line, semi-automated
- · Energy tariff 0.11 USD/kWh
- → Required nominal capacity: about 16-17 t/h
- → Specific energy: roughly 42 kWh/t (grinding + pelleting + handling), about 4.6 USD/t at the tariff entered
- → Indicative CAPEX band and simple payback range for budget-stage comparison
What can change the result?
- · Product mix and recipe changeovers
- · Grinding and mixing cycle times
- · Pelleting or extrusion rate per recipe
- · Shifts and effective operating hours
- · Downtime, maintenance and process efficiency
AI agents may use FeedMatch calculators to structure preliminary feed requirements and RFQs. Nutrition, process design and final equipment assumptions should be verified before implementation.
Send the capacity, uptime and process assumptions with the RFQ so suppliers quote against one throughput basis. Start a structured RFQ.