- Posts: 11
 
MSPT Cooling System
- jqcano
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                05 Aug 2019 09:16                #7594
        by jqcano
    
    
            
            
            
            
            
                                
    
                                                
    
        Replied by jqcano on topic MSPT Cooling System            
    
        Hi Paul!
Have you received any info about this?
Thank you again,
Javier.
    Have you received any info about this?
Thank you again,
Javier.
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- Paul Gilman
 
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                05 Aug 2019 16:17                #7596
        by Paul Gilman
    
    
            
            
            
            
            
                                
    
                                                
    
        Replied by Paul Gilman on topic MSPT Cooling System            
    
        Hi Javier,
We just fixed this issue for the next version of SAM. In the meantime, you can work around the problem by using a weather file with wet bulb temperature data.
github.com/NREL/ssc/issues/301
If your file does not have wet bulb temperature data, you could edit your weather file and add a wet bulb temperature column with the label "twet". SAM is supposed to do the calculation automatically, but that was not working for the power tower model. Here is a link to an article (Martinez 1994) describing the method SAM uses to calculate wet-bulb temperature from dry-bulb temperature, atmospheric pressure, and relative humidity data.
www.ejournal.unam.mx/atm/Vol07-3/ATM07304.pdf
Best regards,
Paul.
    We just fixed this issue for the next version of SAM. In the meantime, you can work around the problem by using a weather file with wet bulb temperature data.
github.com/NREL/ssc/issues/301
If your file does not have wet bulb temperature data, you could edit your weather file and add a wet bulb temperature column with the label "twet". SAM is supposed to do the calculation automatically, but that was not working for the power tower model. Here is a link to an article (Martinez 1994) describing the method SAM uses to calculate wet-bulb temperature from dry-bulb temperature, atmospheric pressure, and relative humidity data.
www.ejournal.unam.mx/atm/Vol07-3/ATM07304.pdf
Best regards,
Paul.
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