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Hi, I am planning on taking the PE Exam this October. I have been practicing refrigeration cycle problems and was wondering if the brain trust herein might have some advice. The refrigerant charts in the study guides and texts I am using are hard to read.....challenging or frustrating to read...

Dear Braintrust, My company is bidding a large runway/flightline repair project that requires replacement and installation of a tremendous amount of concrete & asphalt paving. My question(s) is the following: -Do you know of any value engineering experts in this specific design/build...

Thanks for everyones input. My client liked the comment that their facility will be 1.5 Million SQFT and that a conservative energy budget per year is $2/SQFT. Therefore if commissioning, by virtue of documenting the goal of reaching the system design intent, can save 10% of this energy budget...

Thanks for the input! It appears that a documented source, study, or report is hard to find.

Dear Braintrust, My company has recently presented and partially sold an owner, on commissioning services, that is planning to build a major hotel/convention center. I say partially because the owner's "Facilities Group" understands the need because they can appreciate the many past headaches...

Thanks ChasBean! Good sound advice!

Thanks for everyone's help. Happy Thanksgiving!!

Dear Braintrust, Can anyone identify a good comprehensive manual, text, or even website on the subject of building systems commissioning? More specifically I have an upcoming project where my company has been asked to consult as an "owners rep" on a large hotel/convention center (+1500...

Let me preface this question with the full knowledge that it is broad and yet not meant to be exclusive for all cases. There appears to be many ASHRAE standards in place for the design of new or existing buildings. Some apply for minimum energy efficiency ASHRAE 90.1-89, others for indoor air...

Thanks for your help...people like Quark and others deserve a big thanks because they are always helping keep this website on the "cutting-edge"!!

Dear Braintrust, I am trying to understand the best way to find a mixed condition (ie temperature, enthalpy, etc.). When for example...return air is mixed with outside air. A text I am studying says you can find this by the following equation: mixed temp...

Ladies and Gentlemen, Does anyone know of a source I can find/order ME Sample Questions and Solutions published by the NCEES?? I received the 2001 version from NCEE. I want to practice more problems and NCEES (I believe) only issues one sample TEST/Solutions Manual per year. By the way this...