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Vapor inatanthneo (Vi)<br />

Vi - Vp x (.s_ Caa) (lb/afo)<br />

C<strong>la</strong><br />

Cap - Cia puede doterminarme a<br />

C<strong>la</strong> partir do <strong>la</strong> GrAfica<br />

3-13<br />

Cup - Calor aeniible a <strong>la</strong> preasin do vapor do <strong>la</strong><br />

caldera (BTu/lb)<br />

Cua - Calor sensible a <strong>la</strong> prasi6n do vapor a <strong>la</strong><br />

atm6afera (Btu/lb)<br />

C<strong>la</strong> - Calor <strong>la</strong>tente a <strong>la</strong> presi6n do vapor a <strong>la</strong><br />

atm63fera (Btu/Ib)<br />

Vapor necesarlo pEra calentar el condonsado a <strong>la</strong><br />

presi6n de <strong>la</strong> caldera (Vc)<br />

%.7 - (Vp - Vi) x Cap - Cac (ib/ao)<br />

Cip<br />

Csc - Calor sensible del condensado (Btu/lb)<br />

Vapor necesario para calentar el aqua do repoici6n a<br />

<strong>la</strong> presi6n de <strong>la</strong> caldera (Var)<br />

Var - Vi x Cap -Car (lb/afio)<br />

Cip<br />

- 184 ­

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