- Author
- Jensen, P. T.
- Title
- User Guide to Mocarad: A Monte Carlo Program for the Calculation of Thermal Radiation Heat Transfer.
- Coporate
- Technical University of Denmark, Lyngby
- Keywords
- monte carlo method | heat transfer | thermal radiation | computer programs | manuals
- Identifiers
- MOCARAD
- Abstract
- In the engineering science a large number of problems exist, in which heat transfer by radiation plays a significant, if not predominant role. Determination of heat surface load and temperature distributions in large utility boilers, calculation of thermal load on the test specimen in a fire test furnace or determination of the influence of infrared heaters on the indoor climate are only a few examples of problems requiring radiative heat transfer to be taken into consideration. To give the user an understanding of the Monte Carlo method, Chapter 1 introduces the basic principles and shows how they can be used to simulate thermal radiation. Chapter 2 deals with the geometrical elements, points, surfaces and volumes, available in MOCARAD, while radiative properties, that can be assigned to volumes and surfaces are treated in Chapter 3. In Chapter 4 is explained how to invoke the special features of MOCARAD, e.g., error estimation and absorption factor calculation. Chapter 5 describes how input to MOCARAD is constructed, and contains an "input cookbook recipe", which primarily is intended for the unexperienced user. The input instructions are illustrated with an example. The output from MOCARAD is explained in Chapter 6. In Appendices A and B a detailed description of the available input instructions are given. Once familiar with MOCARAD these appendices probably contain all necessary information. The use of absorption factors are discussed in Appendix C, which also gives useful relations for converting these to e.g. view factors or total exchange areas. In Appendix D information regarding programming language, machine requirements, program limitations and runtime of MOCARAD is given.