THERMAL is a technical routine that provides user oriented methods for temperature analysis of a structure, large or small, that houses a mechanism giving off heat in some form. Some common structures that would require such analysis would be PC Boards, electrical equipment, solar systems, plastic molds, residential and commercial heating / air conditioning systems and the like. This routine performs analysis through the use of finite difference modeling. A printer simplifies result presentation but is optional. Editing features have been included that speed model generation and facilitate error discovery. This program has been designed to be particularly useful to technical personnel and care has been taken to simplify use whenever possible. The user is led though the analysis routine step by step by means of questions and statements.

THERMAL uses finite element modeling to determine component temperatures while handling conduction, radiation and convection heat transfer for both steady-state and transient conditions. Unique model editing features of this routine include the substitution feature, insertion / deletion feature and a repeat feature. The substitution feature provides a method of changing whole blocks of data with a single input. Sequential nodes numbering is not required and insertion and deletion of a node can be easily accomplished. The repeat feature reproduces previous data by simply pressing a key. This routine is obviously designed with the user in mind. It has many features to make it simple to use while the program is capable of calculating very complex, technical problems. The results are printed in a from that is readily understandable and efficient.

• THERMAL is very simple to use, User's manual is only a few pages.
• THERMAL offers many editing features to facilitate model generation and error discovery.
• THERMAL does not require sequential node numbering.
• THERMAL allows an unlimited number of boundary nodes.
• THERMAL is capable of handling an unlimited number of heat sources.
• THERMAL performs analysis for steady state and transient conditions.
• THERMAL utilizes a generation routine for ease of data input.
• THERMAL allows data to be entered as conductance (BTU/HR Deg. F) or as resistance (Deg. C/Watt).
• THERMAL is fast, solution for a 1000 node model is reached in seconds.

 

THERMAL arrives at the solution through the use of matrix manipulation. This manipulation solves the interacting heat conductance's and temperatures as a single set of simultaneous equations. This procedure provides an exact solution rather than the more common approximation techniques used in many other finite difference routines. Once the material has been divided into nodes, the user must determine the coupling values before data input may begin. An example is provided in the user's manual to assist in determining the coupling values.

THERMAL is capable of handling up to 2500 nodes for analysis on an IBM personal computer and compatibles. However, you can order whatever size routine you think you will need. You can order a 100 node version of thermal for only $100.00. This size is the minimum capacity that will be sold. With the routine being priced as $1.00 per node up to 250 nodes and $0.50 per node for larger versions. you can purchase whatever size your budges allows. Our popular 500 node version is available for $250.00.