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Glycol causes two issues: increased flowrate to transfer the same amount of heat and increased Pump HP due to higher viscosity. I suggest you calculate and check out both requirements before the switch. You may be forced to change the pumps and increase the heat transfer surface.

The following is the web-site who produce rubber crumble and other products from tires. They have taken many types of machines that grind, shred, etc and made them do tirees. Tire processes are difficult because of the steel, fiber and abrasiveness, and above all tearing or cutting them apart...

Try this web site: www.squ1.com They have a few neat programs related to HVAC/R and Building dynamics.

Try this connection. The other one that I got some from is www.theweathernetwork.com www.climate.weatheroffice.ec.gc.ca/Welcome_e.html

We are looking for sources of pre-drawn 3-d drawings for Autocad or Inventor Thanks for your help

A fan operating with zero flow is not hurt. However, when the gas is released into the fan inlet there could be vibrations and surging of pressures. Also, can the inlet plenum stand the negative pressure the fan will produce. Given teh s.g. do you need much static pressure to send the gases...

Unfortunately I do not know these two items. I believe the sand will be in the 15 C range and the air from 10 C to 30 C and the humidity of the air at 50 to 80% depending upon the day. The design conditions according to ASHRAE should be maximum 31Cdb and 19 Cwb with a mean daily range of 14 C...

Client wishes to convert a totating kiln, counterflow grain dryer to a sand dryer. The sand is aproximately 5% moisture, and they want to dry to less than 1% moisture. How do I determine the heat required and the airflow rate required through the dryer. they wish to dry 90 tonnes/hr. the...

I want to use a screw conveyor to level loads in bins containing materials such as grain, wood chips, plastic resins. Would like to know how to calculate the required torque.