I'm wanting to make some long lengths of large diameter pipe around 450mm dia with a 28mm wall. I only have a small extruder and the die making company says it's not possible. My extruder has a motor of 10hp and I'm not sure of the output capacity, but am assuming close to 100kg/hr. I'm...
I want to trial a prototype extrusion from polyprop, I'm only semi familiar with the extrusion process and have never officially operated a machine. I'm currently building up a die and I have managed to pick up a hardly used extruder from a university for a song.
However I'm starting to be...
I'm wanting to generate a vacuum for purpose of making an LN2 dewar. I'd rather not buy a turbo molecular pump or diffusion pump if I dont have to. I've mentioned the idea to a couple of people who've thought it's dumb and wont work, but thought I'd try and get a vote here.
I have a 2 stage...
I'm trying to figure out the temperature of air when it expands out of an orifice I have air at -30deg C and 2.5MPa, what temperature will it be when it expands to atmosphere? I presume if I can run it past a turbine it will become even cooler. The only equations I have - also take volume into...
I have a picture of an inlet to a small asco dry ice machine and Am trying to figure out how it works. I think I may have it figured but am wondering if anyone else can shed light on it's pluming for me and why it's arranged in such a complex manner the image is found here ...
I'm wanting to produce relativly small amounts of CO2 with a purity of at least food grade. I was hoping to do this by burning natural gas, compressing the exhaust and cooling through different temperature cooling columns. I figured in my simple brain this should work piece of cake - but...
