Model Samples

Heated tank

This system comes from a well known heated tank benchmark.

It is composed of 5 components:
• a tank
• a source of heat (fuel) that brings a constant amount of thermal power to the water contained in the tank
• two pumps that supply the tank with cold water
• a valve which allows the water contained in the reservoir to be evacuated

The two pumps and the valve are actuated according to the level of water in the tank in order to prevent overflow and dryout. The goal is to evaluate the probability that, at a given time, the system has experienced one of the three following undesired events:

1. Dryout: The level of water in the tank goes under 4m
2. Overflow: The level of water in the tank exceeds 10m
3. Overheating: The temperature of water in the tank reaches 100°C

Author : H. CHRAIBI

This model is a part of the samples provided with current version available for download.

Heated room

This model stands for a room which temperature is to be kept between two thresholds values using one or several heating devices equipped with thermostats.

When the heaters are stopped, the temperature in the room drops because of thermal leakage and the low external temperature.

As the heaters may fail, there is a chance that the room temperature will not be maintained in the appropriate range. Several performance indicators of this heating system can be assessed with PyCATSHOO:
• the evolution over time of the mean temperature in the room
• the quantiles at 1% highest and lowest of the temperature values
• the mean time the room spends under a given temperature value
• the cumulative probability distribution function of a chill event occurrence (e.g. Temperature < 14.°C)

Author : H. CHRAIBI

This model is a part of the samples provided with current version available for download.

MODEL SAMPLES

Models presented below are included in the packages available in the download page.