Human Comfort Library


Bausch-Gall GmbH (distributor):

Industry / Process

  •  Building
  •  Automotive Cabins
  •  Aircraft Cabins

Short Description

The HumanComfort Library enables an analysis of human beings thermal comfort in buildings and vehicles. Important international standards are implemented in order to evaluate the thermal sensation and express it in a numerical and visual way. Zone models help to determine transient quantities like air temperature and mean radiant temperature which are important factors for the comfort evaluation.

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Long Description

Energy systems are often optimized with regards to economical rules, on the other hand humans feel comfortable within certain limits defined by thermal and personal factors.

Numbers of studies carried out that the change of the thermal comfort can be defined by means of characteristic numbers and standardized mathematical methods. The thermal comfort and the sense of pleasantness or unpleasantness are depending on thermal and personal factors.

The HumanComfort Modelica-library provides basic models to estimate the human comfort of occupants or a group of occupants within an air conditioned zone and provides it in form of mathematical criteria and also graphical visualizations.

The HumanComfort Modelica-library has a modular approach and the use of standardize interfaces (Modelica Fluid connectors) enables an easy implementation in existing Modelica-libraries. Each of the four HumanComfort modules is exchangeable. The user has the ability to combine an existing building simulation model with the HumanComfort module and although use the HumanComfort weather and comfort module.
The library consists of the following three packages:

  1.  HumanComfort Package (thermal comfort analysis)
  2.  Weather Package (weather model for annual simulation)
  3.  Zone Package
      o Mobile Applications (aircraft and automotive cabin models)
      o Stationary Applications (building simulation models including easy HVAC (Heating Ventilation Air Conditioning) systems

These models can be used within the developmental process to analyse the thermal comfort and also to optimize air-conditioning systems for buildings and vehicles.

The HumanComfort Modelica-library uses an integrated approach to simulate the zone (building or cabin model) and the air-conditioning simultaneous by consideration the thermal comfort of the occupants. This is not state of the art for annual dynamic simulations.

Often the system will be simulated by using the statistic load curve as the boundary conditions instead of the building. This approach assumes that the air-conditioning system can fulfil the heat curve at any time by providing the heating or cooling power. This method neglects however the interaction between the building and the air-conditioning system.The integrated simulation is crucial for system sizing taken the thermal comfort into account. Integrated simulation also allows the user to analyse system configurations where the load curve is due to transient effects out of balance (e.g. failure of parts of the air-conditioning system, or coefficient of performance (COP) changes) and realistic system control and interzonal air flow.

Release History

Release Date

Release ID

with Modelica


Tested with

Mar 13 2009

0.1 beta 1


MSL 2.2.1

Dymola 6.1

Oct 15 2009

0.4 beta 2


MSL 3.1

Dymola 7.3

Apr 14 2010



MSL 3.1

Dymola 7.4

Download Materials



Article describing library and its validation – Modelica Conference 09

Library brochure

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