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 ...
Intermittent Cluster Dynamics and Temporal Fractional Diffusion in a Bulk Metallic Glass
Introduction
This video delves into the intermittent cluster dynamics and temporal fractional diffusion observed in bulk metallic glasses. It highlights the unique properties and behaviors of these materials under various conditions.
Key Topics Covered
- Intermittent Cluster Dynamics: Understanding the sporadic nature of cluster movements within the glass.
- Temporal Fractional Diffusion: Exploring how diffusion processes deviate from classical models.
- Bulk Metallic Glass: Examining the properties and applications of bulk metallic glasses.
- Experimental Methods: Detailed overview of the methods used to study these phenomena.
- Results and Discussion: Analysis of experimental data and theoretical implications.
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