This month I want to deviate a bit from a purely renewable energy topic to one that’s important across the entire spectrum of hydronics technology. It’s a topic that likely gets exercised on a daily basis in any engineering office where water-based HVAC systems are conceived.
Those who have worked with the technical side of hydronics have likely used terms such as: Pressure, differential pressure, head and head loss. These terms all have legitimate and specific meanings. But when some of these words get scrambled into jargon, the result can be an undefined or meaningless term. One example of such a scramble is “head pressure.”