File:Abshum Engineering Thermodynamics.png

absolute humidity

prologues := 2; % input metaobj.mp; beginfig(1);

 numeric u;
 u := .4cm;
 drawarrow origin .. 10u * dir(90);
 drawarrow origin .. 10u * dir(0);
 label.lft(btex $\omega$ etex, (0, 10u));
 label.bot("t", (10u, 0));
 path pp; pp := (0, 2u) {dir (5)} .. (2.5u, 2u) .. (8u, 6u) .. (9u, 8u);
 draw pp;
 label.lft(btex $\omega_a$ etex, (0, 4u));
 path qq; qq := (0, 4u) .. (8u, 4u);
 draw qq dashed evenly;
 pair a; a := qq intersectionpoint pp;
 dotlabel.top("2", a);
 draw a .. ( a  + 4u * dir(-90)) dashed evenly;
 label.bot(btex $t_{dp}$ etex, a  + 4u * dir(-90));
 dotlabel.rt("1", point 2 of qq);
 path ss; ss := qq shifted (0, -1.5u);
 label.lft(btex $\omega_b$ etex, (0, 2.5u));
 pair b; b := ss intersectionpoint pp;
 dotlabel.top("3", b);
 draw (point 0 of ss) .. b dashed evenly;
 currentpicture := currentpicture scaled 2;
 currentpicture := currentpicture shifted -llcorner currentpicture;

endfig; end;

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