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  1. cvanoverbeke

    Building Services fees and collections Mech/Plbg/Elec

    It is amazing how scummy this business is for getting paid. In Ontario, if a sub-consultant is not paid, a breach of trust charge can be laid against the prime consultant under the Construction Lien Act and Criminal Code. Everyone complains about architects. The person that I am having...
  2. cvanoverbeke

    Storm Water Management Report - Standard

    Is there an industry standard association that provides a format for preparing storm water management reports? I am based in Ontario Canada and a local Director of Engineering makes a big deal about following standard (He talks in generalities). Oh by the way you have a P.Geo (Geographer)...
  3. cvanoverbeke

    Why do engineers encourage people to become engineers

    Without reading all 38 posts on this subject, I can give you some recent observations about academia. I am 46 years old and just completed a Masters of Engineering - Green Energy Design. In one of my courses I was talking to the Mechanical Engineering professor about super critical steam...
  4. cvanoverbeke

    Coil Energy Recovery Loops

    ASHRAE Applications Handbook has details of the calculations. We just finished a design of a glycol run around loop. The system effectiveness is driven by coil selection and this is related to how much energy the coil can transfer at the temperatures you are using.
  5. cvanoverbeke

    legal limits of pe versus architect

    Joint Bulletin by Ontario Association of Architects and Professional Engineers Ontario. It is quite clear where the you need an architect or an engineer. Regards, Cvanoverbekehttp://files.engineering.com/getfile.aspx?folder=d35ac82d-23a2-49f3-a8b7-fdfddc4bdfdb&file=PEO-OAAJointBulletin2008.pdf
  6. cvanoverbeke

    legal limits of pe versus architect

    In Ontario, Canada, the Architects and Professional Engineers have a Joint Practice Board. Basically in Ontario if it has to do with fire safety in a any reasonably sized building, it is the architect's responsibility. I am working on a public school where I refused to give an opinion on the...
  7. cvanoverbeke

    R22 - 407 gas change

    Without getting into to much technical issues. R22 is an HCFC where the second C stands for chlorine. R407 is an HFC no, chlorine. From what I have read about R407 and R22 replacments, there are different properties. It is not abnormal that a one for one replacment may not work. When you...
  8. cvanoverbeke

    Structural Analysis Software Recommendations

    I have been looking for structural analysis software that interfaces with Revit Structure for over 2 years. My main concern outside of cost which I cannot really avoid is capabilities of the software. I am looking for software that has the following capabilities in one package (which I think...
  9. cvanoverbeke

    Cooling and Heating Load Calculation Software

    Our firm has been using Trane Trace 700 Load Design for 3 years. It is good software. They have a 30 day trial if you want to use it personally. Cvanoverbeke
  10. cvanoverbeke

    Revit MEP

    We have used Revit MEP on one project. If the architect had of used Revit it would have made our job much easier. The heat loss module is buggy since I used it on a house and it crashed. Generally it works pretty good. Regards, cvanoverbeke
  11. cvanoverbeke

    Corridor Makeup Air Unit 100% Outside Air

    I assume you are from the southern US where the amount of cooling hours is signficantly higher than Waterloo, Ontario. I agree it is free heat but for the small amount of hours that we would probably require it the extra capital cost to use the reheat would be quite expensive. I think a...
  12. cvanoverbeke

    Corridor Makeup Air Unit 100% Outside Air

    I do not like DX from an operational point of view (cycling of compressors and less efficient). We are proposing an 4 pipe system with reheat from the boilers. Face and bypass may not work. There is a central chiller and central condensing boiler. With proper controls, you can minimize the...
  13. cvanoverbeke

    Corridor Makeup Air Unit 100% Outside Air

    Yes, the corridor makeup air unit is the primary source of ventilation for the suites. I agree that it is not the best method for introducing ventilation into suites. There must be 10,000 condo units in Greater Toronto area that does it this way. When I discussed the issue with my Senior...
  14. cvanoverbeke

    MEP Consulting, money collection

    This is an interesting thread. As a former banker, I can tell cash flow is king. The key to collections is consistent policy towards your clients. I find the comments interesting about the architect who did not pay for a year. I was a construction lender at a large Canadian Bank and under...
  15. cvanoverbeke

    Corridor Makeup Air Unit 100% Outside Air

    We are designing a midrise condo with a 4 pipe fan coil system for heating and cooling the residential suites. We are introducing ventilation (outside air) through 2 corridor makeup air units located on the roof. I have this Senoior Designer that states "To do it properly you need reheat since...
  16. cvanoverbeke

    Undergound Parking Garage Floor Question

    Thank you for the explanation. Regards, Cvanoverbeke
  17. cvanoverbeke

    Vibration Isolation - Air Cooled Chiller

    We are designing a 6 storey condo in Waterloo, Ontario, Canada and we have specified a 130 ton air cooled screw chiller which is an outdoor unit. We asked the manufacturer for recommendations on isolation to avoid noise complaints in the residential units and this is what the said: "To reduce...
  18. cvanoverbeke

    Undergound Parking Garage Floor Question

    I just received an geotechnical report for an undergound parking garage which has some issues since it is below the water table. The geotechnical engineer states thtat the slab on grade floors should be independent of load bearing walls and columns. This is going to be the case. However they...
  19. cvanoverbeke

    Hydrostatic Pressure From Ground/Flood Water

    We are designing a one level undergound parking garage under a 6 storey condo. The building footprint is smaller than the parking garage therefore the building loads are transferred by point loads to pad footings. A major issue for us is the hydrostatic pressues from a high ground water table...
  20. cvanoverbeke

    Cooling water system options

    I suggest calling any of the manufacturers who make air cooled condensers. Based on your comments, it appear that you do not need mechanical (compressor energy) to cool the water. If this is the case, the only kW/ton would from the condenser fans which would be really low, probably less thatn...

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