Hi: I have a boubt about the water heating equipment to be commissioned. In a production plant there are two boilers (water heating and steam), and heat recovering (to heat water) from three sources: an air commpressor, a chiller (for water chilling), and one air handler. After the respective heat exchangers, the heated water by the heat recovering systems goes to a tank (122°F) and then it goes to the process and domestic uses; and the heated water and steam from boilers goes firectly to the process use (130°F).
So, in respect to heat recovering systems, what is the limit of the commissioning? I mean, in the heat recovering from the air compressor, do I we have to commission the heating water system AND all the compressor?? or just the water heating system?. And the same in the other two systems (chiller and air handler): do we have to commission all the equipment involved? or just the equipment for water heating??
Of course, the air handler will be commissioned as a HVAC system, too. But, what about the others?. I really thank you for your suggestions.
Alvaro Valdivia
Mechanical EngineerPOCH Ingenieria, Chile
20 thumbs up
July 31, 2011 - 2:57 am
sorry!!, the water and steam form boilers goes to the 226°F (not 130)
Scott Bowman
LEED FellowIntegrated Design + Energy Advisors, LLC
LEEDuser Expert
519 thumbs up
August 1, 2011 - 10:19 am
This is not an uncommon issue in industrial projects. In general, the systems that are using energy to provide comfort to the building are what should be included in the Cx scope.
The detail of the system will determine how far you would have to go into the "process" systems. Without more detail, it woudl be difficult to give specifics, but from your description, I do not think you would need to commissiong the boiler system. You would need to commission the heat recovery system such that you have confidence that the heat will be gathered, and then distributed as intended in the design.