1 - Chimney and Draft System, Reciprocating Pump, Windmill, Pump

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Last updated 9:26 AM on 4/28/26
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13 Terms

1
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Chimney: Mass Density of Air

pa = Pa / Ra Ta

2
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Chimney: Mass Density of Gas

p_gas = P_gas / R_gas T_gas

3
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Chimney: Draft (Pressure)

Draft = δ(h) = pg(h) = (p_air - p_gas) g h

4
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Chimney: Height

h = Draft / (p_air - p_gas) g

5
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Reciprocating Pump: Theoretical Discharge

Q_theo = A L N k

A = Area

L = Length

N = Speed in rps

K = acting = 1 for single = 2 for double

6
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Reciprocating Pump: Slippage

Slippage = Q_theo - Q_actual

7
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Reciprocating Pump: Power

Power = Q γ TDH = A x L x N x k x p x g x TDH

8
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Windmill: Power

Power = KE = ½ mv²

9
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Windmill: Mass not given

m = p Vol_flow

m = p Vel Area

10
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Pump:Total Dynamic Head

TDH = Bernoulli = (P2 – P1 ) / γ + [V2 2 – V1 2)/2g] + [Z2 – Z1 ]

11
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Pump:Total Dynamic Head when Velocity not given

V = Q / A

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Pump: Water Power

WP = γ Q TDH

WP = mw g TDH

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Pump: Q not given but mass and density are

m_w = p Q