Dear Mr. Bradley, I made my project of a house with two floors and an attic which has a PCM layer installed on the ceiling between second floor and attic in TRNSYS 17. I used a type1270 that we bought a few years ago. I have a number of problems I can`t solve. - When I use Type1270b (built-in component) it reports "fatal error in Trnsys" even though the example from the HighRiseWithPCM folder works in Trnsys17 that I have installed on my computer. - When I use Type1270a (custom component), the project can be run in Simulation studio, but there seems to be no interaction between the building and the PCM layer. The results indicate that the temperature of the PCM layer is equal to zero during simulation period of one year. I connected all components as it given in the example HighRiseWithPCM. - Also, if I put that the PCM melting temperature is lower than the solidification temperature, simulation in SIMULATION STUDIO can be started. But, if these temperatures are equal or the melting temperature is slightly higher than the solidification temperature (such as for example for coconut oil), then it does not work. Please help me find what is causing this. I don't know what I did wrong. I point up that we also have a license for TRNSYS 18 and that I can install it if the version of the program is the cause for some of these problems. Kind regards, Biljana Vučićević Biljana Vučićević, Ph. D. Mech. Eng. Associate Research Professor VINČA INSTITUTE OF NUCLEAR SCIENCES Laboratory for Thermal Engineering and Energy Phone: +381 11 3408 352 E-mail: bee@vinca.rs |