COP and Superheat - does is it help?

[desA]

Hi folks,

Apologies for my late entry into the debate. Have been frenetically busy of late. I'll review the post above & make comments along the way. Fascinated to see how Peter's trials work out in practice.

What Peter & Chef's (& hopefully MF's) systems will be able to provide is the following vital information:
1. What happens to Te,sat / Tc,sat / Tc,disch when ONLY evap SH is altered?
2. How does the METHOD of altering SH affect Te,sat / Tc,sat / Tc,disch?
2.1 For instance, if SH is altered by trimming refrigerant mass flow?
2.2 If SH is altered by adjusting evap fan speed?
2.3 If SH is altered by other means?

If Peter / Chef / MF could provide practical, experimental data, then this would be the place to begin the COP calculations.

From my own work in my Laos lab, I noted that as SH was adjusted, that other variables in the system automatically re-set themselves, as the system balanced itself. An adjustment of one part, affects the whole system.

I would also agree with the discussion of 'useful' SH. In other words, the SH rise has to come from useful evaporator effect ie. extraction of energy from atmosphere - NOT heat-ingress along the suction line.

Anyway, I feel that the experimental feedback will be absolutely vital, before going into detailed calcs via Coolpack / Solkane / etc.

[at]Peter : Pam says 'Hi'... Please send our regards to Kristien.