Chiller & Boiler Pump Location – Upstream or Downstream? Let’s Settle This Debate One of the recurring questions I hear from engineers, operators, and even contractors on site is: 👉 “Should pumps be located upstream or downstream of chillers and boilers?” At first glance, it feels like a simple “rule-of-thumb” answer. But in reality, it’s a nuanced design decision guided by hydronic principles, ASHRAE handbooks, and equipment manufacturer limits. Let’s break it down 👇 🌡️ Chilled Water Systems Low- to Mid-Rise Buildings: Pumps are often placed upstream of the chiller evaporator (on the return side). ✅ Benefits: Pump heat is absorbed by the chiller, positive NPSH margin, and evaporator stays flooded. 🔎 Backed by: Trane Engineers Newsletter & ASHRAE guidance. High-Rise or Pressure-Limited Plants: Pumps are placed downstream of the chiller evaporator (on the supply side). ✅ Benefits: Prevents adding pump head across the chiller tubes (protects pressure rating). ❌ Drawback...
Steam Turbine Operational Experience Steam Turbine Operational Experience A Comprehensive Overview of Operational Insights and Overhaul Findings Overview Operational Experience Overhaul Findings Conclusion Overview This report highlights key operational aspects and insights gained during the overhaul of steam turbines in industrial applications... Operational Experience Consistent performance metrics over varying load conditions. Challenges with rotor vibrations and bearing lubrication. High energy efficiency achieved with advanced monitoring systems. Proactive maintenance schedules reducing unplanned downtimes. Overhaul Findings Wear and tear observed in blade assemblies due to prolonged operation. Successful replacement of worn-out seals and bearings. Enhanced efficiency after cleaning of steam pat...