Heat from plastic injection machines
Heat from plastic injection machines
(OP)
Anyone have any data on heat output of plastic injection machines (for cooling loads)? Specifically Nissei.
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Heat from plastic injection machines
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RE: Heat from plastic injection machines
RE: Heat from plastic injection machines
B.E.
RE: Heat from plastic injection machines
RE: Heat from plastic injection machines
Injection Molding
30#/Hr HD Polyethylene = 1 ton
35#/Hr LD Polyethylene = 1 ton
35#/Hr LD Polypropylene = 1 ton
50#/Hr Polystyrene = 1 ton
75#/Hr P.V.C. = 1 ton
45 #/Hr P.E.T. = 1 ton
Extrusion and blow molding numbers are different.
RE: Heat from plastic injection machines
RE: Heat from plastic injection machines
I assumed that all electric that did not go to cooling went to heat in the space (which is very conservative)
This is my very rough calculation:
Demand (KVA) = cooling load/3.41 + cooling load/SHF/EER
cooling load is the unknown sensible cooling load (internal heat). It sort of ignores the building skin load which is basically the roof and I have know idea how much ventilation(as I said very rough). It works out to 50 tons in my case.