There are 1,296 refractory combinations and 6 heating arrangements available. 21 selected refractory materials are programmed. Each external surface can have a different shell temperature. A cold charge can be heated up with the furnace and the time required to bring the charge up to operating temperature is computed, based on the net heat input and allowing for variable heat flow into the refractory during the transient heating time period. Floor surfaces can include any quantity and size of refractory pier load supports.
Roofs can be flat or sprung arch design.
The program computes and displays heat storage, mean temperature, and thermal conductivity of each course, interface temperatures between cources, shell temperature and heat loss for each of the external surfaces, and total heat loss and storage for the entire chamber. A charge can also be included to heat up at the same time, and the total time to heat the chamber and charge to the set point operating temperature is computed. REFR-2A This program computes labor and material costs of refractory construction. The program contains average default cost values for each refractory. For more information on all my programs a brochure containing descriptions and printouts is available.