dit document bestaat uit een samenvatting van alle lessen stofoverdracht van de opleiding chemische technologie op de HU inclusief formuleblad, handig om te gebruiken voor het tentamen en ter voorbereiding van/tijdens de lessen.
Les 3: niet-stationaire diffusie 8
➢ Fourier grafieken 10
Les 4: convectieve overdracht 12
➢ Roergrafieken en kengetallen 15
Les 5: diffusie in de gasfase 19
Eenheden en kengetallen 21
1
, Formules
Stationaire toestand
Φ
−( ×t)
Cuit = Cin × (1 − e V )
Statoinaire toestand met reactie
n
Φ×Cin − Φ×Cuit ± r×V = 0 → r = k×Cuit
Wegspoelen van een product
Φ Φ×k
−( ×t) −( ×t)
Cuit = C0 ×e V → 𝑚𝑒𝑡 𝑟𝑒𝑎𝑐𝑡𝑖𝑒: Cuit = C0 ×e V
Warmteoverdracht
1 1 dw 1
Φw = U×A×ΔT → = + +
U h1 kw h2
Φw T1 −T2
Φ"w = = kw×
A d
Fouriertijd bij warmte
a×t kw
Fo = →a=
d2 ρ×Cp
Warmteoverdracht van een bol naar een stilstaand medium
h×D h×2×R
Nu = = → 𝑠𝑡𝑖𝑙𝑠𝑡𝑎𝑎𝑛𝑑: Nu = 2
k k
φ 1 1
k×(T − Tbol ) = w × ( − )
4×π r R
T = T∞
Φw = 4×π×k×R×(Tbol − T∞ ) = h×4×π×R2 ×(Tbol − T∞ )
Getal van prandtl
v Cp ×η η
Pr = = → v=
a k ρ
Kinetische energie
u
Ekin = 0,5×ρ×u2 → τ = η×
d
Reynoldsgetal
ρ×u×d
Re =
η
Getal van grashof
β×g×d3 ×ΔT×ρ2
Gr =
η2
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller jeroenthebestofall. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.35. You're not tied to anything after your purchase.