I've got 5 brand new Trane Centrifugal chillers in a new central plant that we've constructed for an office building. I have to do a majority of the chiller commissioning prior to tying the new system into the existing chilled water riser. Does anyone know of any ways to simulate building...
Does anyone know how to determine the max capacity of a horizontal recircualtor package that's 60" x 18', operating at -35 degees F, with a 4:1 recirc rate and wet return connections on opposite ends of the vessel. The refrigerant used is NH3.
What would some of the advantages and disadvantages be of running pumped liquid ammonia to a falling film heat exchanger instead of going flooded with a surge drum?
Are there any materials that are better than copper alloy when used as a gasket in a motorcycle engine cylinder? Preferably something softer or more ductile than copper, but with the same heat resistant properties.
How can I figure out how long it will take to thaw out an 8'x8' plot of mud 17' deep. I have 100 degree F air above it and the mud is probably 0 degrees with thermal conductivity of 0.62. Is there any way to calculate how long the heat transfer would take to bring the mud temperature to 32...
Is there a way to calculate how long it takes to thaw out a certain section of frozen mud? We have some frozen ground preventing us from continuing our build, and I was wondering if there was someway to quickly thaw it out? Has anyone experienced this before?
I konw that the formula to get the vapor pressure of a refrigerant from the temperature is
log P=A+B/T+ClogT+DT+ET^2+FT^3
Where A-F are constants dependent on the refrigerant.Does anyone know how to reverse this equation to get T in terms of P?
Is there any type of code or formula to follow when sizing an expansion tank for a secondary coolant? We are doubling the amount of R-23 in one of our systems and I'm pretty sure the current expansion tank will be large enough.
Has anyone experienced any sort of leak or a welding failure using Dynalene as a refrigerant? We have a shell and plate heat exchanger which has now failed for the second time and I am convinced it is due to a faulty weld. Anyone have any ideas?
Is there a way to figure out exactly how much compressor BHP will rise if a suction line is under sized? Also, what is the maximum allowable pressure one could have in a suction line?
