Abstract
Passive systems are becoming increasingly popular among designers, which is reflected in their frequent use in the construction of modern buildings. The prevailing material in façade design is glass which enables i.a. photothermal conversion of solar energy either in the so-called direct systems or in one of a number of the collector-and-storage Trombe wall variants. In order to estimate how the aforementioned passive solutions affect the energy balance of a building, the efficiency of such solutions needs to be determined first. This paper presents the research proposal that would use a simple-structure laboratory simulator. The proposed method is based on the analogy of supplying heat into the TW itself with an internal heat source. In order to simulate the absorption of solar radiation that takes place in the absorber, the heat was produced by the heating cable embedded in such an absorber. The results of tests carried out according to one of the Design of Experiments (DOE) methods enabled the development of an empirical model showing the operation efficiency of the originally modified Trombe wall.
Highlights
A classic Trombe wall (TW) is a partition consisting of a masonry wall, and a glazing
The efficiency with which TW uses the transferred heat may vary depending on thermophysical parameters and climatic conditions
The resulting conclusions do not allow for developing a universal empirical model which would enable the estimation of the wall thermal balance either in different climatic conditions or with a modified configuration
Summary
A classic Trombe wall (TW) is a partition consisting of a masonry wall (the so-called core), and a glazing. The efficiency with which TW uses the transferred heat may vary depending on thermophysical parameters and climatic conditions It is mostly determined with the use of numerical models that are based either on the finite element method FEM or finite difference method DEM [1,2,3]. In the papers [4, 5], the calculation of the efficiency of various types of walls was carried out in field conditions either with the use of speciallyprepared research chambers or experimental houses [6] The latter ones, in relation to numerical methods, are free of errors that could result from the simplifications adopted in the mathematical description. The resulting conclusions do not allow for developing a universal empirical model which would enable the estimation of the wall thermal balance either in different climatic conditions or with a modified configuration
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
