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  1. stanlsimon

    Electric Steam Boilers

    If the former boiler developed pitting then there could be a problem with make up water and or water treatment. How much makeup water is going into the boiler? What kind of oxygen scavenger is in the water treatment? How often was the boiler water tested? Was there an electrical neutral...
  2. stanlsimon

    haber bosch process

    We are looking for information and or assistance in setting up a Haber Bosch type process to produce anhydrous ammonia. Does anyone have a suggestion on where to start?
  3. stanlsimon

    Highest Compression Ratio for E85

    State of Minnesota tested Mileage of vehicles using e85 and conventional fuel, found no significant difference in fuel economy.
  4. stanlsimon

    Co2 production for greenhouse

    There may be some alternatives, but they are not cheap. I looked at using methylethylamine to selectively capture CO2 out of a generator exhaust stream, the beverage industries use this to capture CO2 from fermenting mash and then pump it back into the beer. However these systems are a marvel...
  5. stanlsimon

    pig manure treatment systems

    Green gold is working on a system that uses duckweed to convert the waste into animal feed. This could be used in conjunction with AD.
  6. stanlsimon

    Requirement for Outdoor Air Dispute

    The temptation to ignore ventilation is powered by the prospect of reducing cooling capacity, shrinking the mechanical contractor's equipment cost. It sounds like there could be some politics involved between the church administration and the contractor. Someone once said that being involved...
  7. stanlsimon

    Heat

    Drill a 1/4" hole and stick a thermometer in.
  8. stanlsimon

    Max compression ratio for propane

    More about LP gas fired IC engines: If liquid state propane is introduced to the engine, there is change of state heat of evaporation required to vaporize the liquid, and then also roughly isenthalpic expansion which gives further charge densification. Per the Classius-Clapeyron relationship...
  9. stanlsimon

    Highest Compression Ratio for E85

    A couple of issues which didn't seem to be addressed previously were EtOH's air/fuel ratio, flame front speed, and also NOX emissions of higher compression engines. If anyone has any information on these subjects I would be interested. I am interested in modifications to an existing V8,( high...
  10. stanlsimon

    Pressure loss in hoses and connectors for air

    The problem with flexible tube or hose is that the corrugations tend to carry over into the inside diameter. Instead of a simple constant velocity you have a series of "semi vena cava" restrictions. Add to that the problem of bending and resultant diameter reduction. The fundametal relationship...
  11. stanlsimon

    Heat

    Based on the drawing there would be a notable increase in the temperature inside due to the 1/2" ring around the edge. This is getting to be more than a simple hand calculation. Do you have some software that can do thermal finite element analysis?
  12. stanlsimon

    russian bath design

    Sorry I have not designed such a bath, however have you gone to the site http://mha-net.org/docs/v8n2/kuznetsov/comfortable%20bath.html ? This person seems to be knowledgeable in this matter. Like all engineers, given enough time and money I could apply the rules of science and design such a...
  13. stanlsimon

    time needed fto reach thermal equilibrium

    Is this an electronic component of a microwave oven? Please give some details especially why you are being asked to make this calculation. I agree with dvd that empirical data will be far superior to engineering calculations in this instance. Perhaps you could make a mock-up of similar size...
  14. stanlsimon

    pelletizing waste

    There is a company nearby which burns turkey litter and then forms the ash into fertilizer granules. At that point the nitrogen is gone, leaving potash, maybe some phoshate?. This is a bypoduct, electricity generation being the main objective.
  15. stanlsimon

    Fillet radius of Stepped-down shaft

    Looking at the situation from the aspect of the lathe operator the minimum inside corner radius would be the smallest radius on the carbide cutter insert that is available.
  16. stanlsimon

    Investment casting - ACME threads

    We just buy the threaded rod premade and chrome plated, then machine the ends as required. Why would you need to fabricate? Or are you talking about the female nut that screws onto it?
  17. stanlsimon

    Load Calculations

    The last time that I used HAP it was for yearly fuel consumption, not HVAC sizing. There was a monumental amount of data entry. Maybe there is a new HAP that will give sizing data alongside yearly energy data. I have not used it for a long time. It used to cost a lot more than E20-II.
  18. stanlsimon

    Pipe Organ Humidification

    Adding humidification to existing buildings can be a big disaster, especially in northern climates where the windows and vapor retarders are not built to handle it. Most of the humidity will be condensing inside the wall and running down the windows. The Lawyers will be on your case for mold...
  19. stanlsimon

    russian bath design

    Is this like the scandinavian sauna (dry and hot) or is it more like a steam bath (wet and hot)? How many people are in there? Is this a public bath? As a western capitalist I am ignorant of the customs of the Russians.
  20. stanlsimon

    time needed fto reach thermal equilibrium

    You are looking for the time it will take to warm the block up approximately to the environmental chamber temperature? Remember Newton's law of cooling? The rate of cooling (or heating) is proportional to the temeperature difference. Do you have the density, thermal conductivity, specific...

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