Water-side HVAC
Control valves, hydronic balancing, PICV, coils, and chilled water system design
5 articles
Chilled-Water Failure Casebook: Four Patterns, First Checks
Four verified chilled-water failures — hunting valves, backward flow limiters, bad setpoints, coil carryover — with worked numbers and the first check for each.
Air Handling Unit Coil Selection Guide
Selecting heating and cooling coils for air handling units: load calculation, coil configuration, fluid dynamics and materials for Australian climates.
Control Valve Selection and Hydronic Balancing for Commercial HVAC
Globe valves vs PICV, valve authority fundamentals, Cv sizing methodology, common commissioning mistakes, and hydronic balancing strategies for chilled water and heating hot water systems.
Data Center Energy Efficiency: From Rack Cooling to Liquid Cooling
A practical guide for facilities engineers on improving cooling efficiency — from PUE fundamentals and rack airflow optimization to liquid cooling adoption.
The Coolant Trade-Off That Transforms Data Centre Economics
Why data centres are switching from ethylene glycol to food-grade propylene glycol — and how this single choice drops cooling from ~40% of facility power to single digits.