Is there a formula to calculate flowrate (gallons per minute) for a 6 inch diameter chilled water pipe if I only have 2 values for pressure - 45 psi and 75 psi. Thanks.
Can anyone provide a link to a PDF document or to a www site that provides a step by step recommissioning procedure for Air Handling Units - we'd like to measure airflow, waterflow, and temperatures to quantitatively assess the performance of our ahus.
