پیمان داوری2025-12-18T07:46:10+03:30
General Principles
Primary Objective:To ensure uniform water distribution across all tube circuits, minimize pressure drop, and prevent cavitation and noise.
Key Parameters:Total system mass flow rate m˙\dot{m}m˙, number of tube rows NtN_tNt, internal tube diameter dtd_tdt, effective coil length LLL, desired velocity in each tube, and allowable total pressure drop in the manifolds.
Fundamental Calculations
1. Determining Total Flow Rate
Use the coil heat load QQQ and water temperature difference ΔT\Delta TΔT:
m˙=QcpΔT\dot{m} = \frac{Q}{c_p \Delta T}m˙=cpΔTQ
where cpc_pcp, the specific...