Cooling towers have been rejecting heat for more than a century, but the equipment and the operating discipline around them have changed more in the last five years than in the previous three decades. Water scarcity, ASHRAE 188 enforcement, ESG reporting, and hyperscale data-center growth have all lifted the cooling tower from a maintenance afterthought…
Water quality has moved from a plumbing side-note to a first-class HVAC design decision. Legionella compliance, chiller efficiency, and the cost of replacing a fouled condenser bundle all trace back to what is dissolved and suspended in the loop. This handbook is written as a reference for plant engineers and building operators — the numbers…
Why Cooling Water Has Become a Board-Level Procurement Question A typical 100 MW hyperscale campus running evaporative cooling consumes water on the order of a million gallons per day or more at peak load — most of it evaporating off the open cooling towers, the rest cycling through closed chilled-water loops and blowdown. When water…
Why CoC Deserves Continuous Control Cycles of concentration (CoC) is the single most influential control variable in a cooling tower loop, governing water consumption, scale risk, and chemical cost simultaneously. Conductivity is the field-proven proxy for CoC because it correlates tightly with total dissolved solids (TDS) and can be measured continuously without reagents. CoC quantifies…
title: “Commercial HVAC Loops: Choosing Between Inline and Probe-Style Conductivity Meters — A Shanghai ChiMay Buying Guide” perspective: Purchasing theme: HVAC & Data Center Cooling Water date: 2026-07-04 Commercial HVAC Loops: Choosing Between Inline and Probe-Style Conductivity Meters — A Shanghai ChiMay Buying Guide Key Takeaways Commercial HVAC installations account for roughly 18% of global…
title: “pH and Conductivity Control During Caustic Treating of Hydrocarbon Streams: Insights from Shanghai ChiMay” perspective: Technical theme: Oil & Gas / Petrochemical Wastewater date: 2026-07-03 pH and Conductivity Control During Caustic Treating of Hydrocarbon Streams: Insights from Shanghai ChiMay Key Takeaways Caustic treating (Merox and similar processes) uses 10–20% NaOH solutions to remove H2S,…