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Thermal imaging was used to acquire the average surface temperatures of the panels in the experimental investigations. By providing heating and cooling to the building from this renewable energy source, both the carbon footprint and operating costs of the Mechanical Engineering building will be reduced. Plastic tubes for liquid heat carrier (water in the presented study) were embedded at the bottom of the plaster layer. A TRNSYS model is used to optimize the system by evaluating its performance with varying operating parameters. The experimental panels contained a 15 mm thick layer of gypsum plaster comprising 30 wt.% of microencapsulated phase change material. The model was validated with data obtained from experiments with thermally activated panels. The model was developed in MATLAB and subsequently implemented as a TRNSYS type. The paper reports the development of a quasi 1D model of a thermally activated layer with phase change material. A substantial simplification of the simulated problem is usually necessary to reduce the computational demand.
#TRNSYS MODEL TYPE 3258 VERIFICATION#
ASHRAE standard comes with a CD which includes verification files from TRNSYS. However, the results from TRNSYS 18 are different to the results in ASHRAE. Therefore, the computational demand of simulation models of buildings or HVAC systems can be quite constraining for their practical application. We are trying to verify our building modelling with TRNSYS multizone TYPE 56 with the models in ASHRAE140 standard like model L100A (the basic model) with TRNSYS 18 to make sure our modelling procedure is correct. Simulations of building performance or HVAC systems performance usually cover a time period of several weeks, months or even a year. modes in which it can operate, a heating mode, dead band and cooling.
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Journal of Autonomous Vehicles and Systems.ASME Letters in Dynamic Systems and Control.ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering.Mechanical Engineering Magazine Select Articles.