Delta T (ΔT) in HVAC Systems – Complete Explanation In HVAC, Delta T (ΔT) means: Difference between two temperatures Formula: ΔT=T1−T2 Where: ΔT = Temperature difference T₁ = First temperature T₂ = Second temperature Why Delta T is Important in HVAC Delta T tells us: • How much cooling or heating is happening • Whether equipment is working properly • Energy efficiency of system • Water flow and air flow condition • Coil performance • Chiller efficiency In HVAC mainly two Delta T are used: • Water Side Delta T • Air Side Delta T 1. Water Side Delta T (Chilled Water / Hot Water) This is the temperature difference between: • Supply water temperature • Return water temperature Usually used in: • Chillers • FCU • AHU • Heat exchangers Chilled Water Delta T In cooling system: • Chiller sends cold water → called CHWS (Chilled Water Supply) • Water absorbs room heat • Warm water returns → called CHWR (Chilled Water Return) Formula: ΔTwater = Treturn−Tsupply Example 1 – Normal ...
PLC in Energy Management Systems
Introduction
This video explains the role of PLC (Programmable Logic Controllers) in Energy Management Systems, their features, and how they contribute to efficient energy management.
Key Points Covered
- Overview of PLC: Basic concepts and functions of PLC in energy management.
- Integration with Energy Systems: How PLCs are integrated with various energy management systems.
- Monitoring and Control: Using PLCs for monitoring and controlling energy consumption.
- Data Collection: Gathering and analyzing data to optimize energy usage.
- Case Studies: Real-world examples of PLC applications in energy management.
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