Why do we use Mollier chart?
Why do we use Mollier chart?
The Mollier diagram is a tool used by engineers to predict, theoretically, the performance of systems and installations. The Mollier diagram, also called the enthalpy (h) – entropy (s) chart or h-s chart, is a graphical representation of thermodynamic properties of materials.
Which lines have on Mollier diagram?
A typical H-S Mollier diagram for a thermodynamic fluid such as steam is shown in Figure 1. Figure 1. The advantages of such a diagram are that vertical lines represent reversible processes and horizontal lines represent lines of constant energy.
At what temperature is ammonia superheated?
Properties of Superheated Ammonia
| Temp. (°C) | v (m3/kg) | h (kJ/kg) |
|---|---|---|
| 800 kPa (17.85 °C) | ||
| Sat. | 0.15958 | 1458.6 |
| 20 | 0.16138 | 1464.9 |
| 30 | 0.16947 | 1493.5 |
What is meant by Mollier diagram explain?
Definition of Mollier diagram : a diagram showing thermodynamic properties of a substance with various quantities (as temperature and pressure) constant especially in terms of entropy and enthalpy as coordinates.
How do you find the specific volume on a Mollier chart?
Answer: h = hf + xhfg= 884.6 + 0.85 x 1910.3 = 2508.35 kJ/kg. Locate point ‘1’ at an intersection of 18 bar pressure line and 0.85 dryness fraction line. Read the value of enthalpy (h) and specific volume (v) from Mollier diagram corresponding to point ‘1’.
What is the difference between Mollier chart and psychrometric chart?
The Mollier Diagram is the European version of the Anglo-American Psychrometric Chart. They are identical in content but not in appearance.
What do you mean by Mollier chart?
What is saturation in ammonia?
[′sach·ə‚rād·əd ə′mō·nyə] (chemistry) Liquid ammonia in a state in which adding heat at constant pressure causes the liquid to vaporize at constant temperature, and in which removing heat at constant pressure causes the temperature of the liquid to drop immediately.
What is the triple point of ammonia?
Thermodynamic properties
| Phase behavior | |
|---|---|
| Triple point | 195.4 K (−77.75 °C), 6.060 kPa |
| Critical point | 405.5 K (132.3 °C), 11.300 MPa |
| Std enthalpy change of fusion, ΔfusHo | +5.653 kJ/mol |
| Std entropy change of fusion, ΔfusSo | +28.93 J/(mol·K) |
What is dryness fraction?
Dryness fraction is defined as the ratio of mass of dry steam (vapour) to combined mass of dry steam (vapour) & mass of liquid in mixture. It is denoted by x.
