28.02.2013 Views

fundamentals of engineering supplied-reference handbook - Ventech!

fundamentals of engineering supplied-reference handbook - Ventech!

fundamentals of engineering supplied-reference handbook - Ventech!

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

p2 = p3<br />

η=<br />

COMMON THERMODYNAMIC CYCLES<br />

61<br />

THERMODYNAMICS (continued)<br />

Carnot Cycle Reversed Carnot<br />

Rankine Cycle<br />

( h −h ) −( h −h<br />

)<br />

3 4 2 1<br />

h − h<br />

3 2<br />

Otto Cycle<br />

(gasoline engine)<br />

1 – k<br />

η = 1 – r<br />

r = v1/v2<br />

COP<br />

p2 = p3<br />

ref<br />

Refrigeration<br />

(Reversed Rankine Cycle)<br />

h<br />

=<br />

h<br />

1<br />

− h4<br />

− h<br />

2<br />

1<br />

COP<br />

HP<br />

h<br />

=<br />

h<br />

2<br />

2<br />

q = 0<br />

− h<br />

− h<br />

3<br />

1

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!