Reducing energy consumption in buildings in extreme hot and humid climates is urgent.However,little research has been done to investigate the loads on walls in this region when they contain salt.So the effect of salt on thermal conductivity is analyzed,using aerated concrete as an example,the heat and moisture transfer in a(salted)autoclaved aerated concrete wall in steady state is expounded by means of COMSOL numerical solutions,as well as the conduction loads of walls in the South China sea region based on real outdoor meteorological data.The results show that it is more difficult for moisture to escape from a salt-containing wall when the initial conditions are the same.At a salt content of 0.87%,the time required for wet equilibrium within the saline wall doubles;the presence of salt causes a significant increase in the latent and sensible heat load on the wall.With a salt content of 0.87%,the increase in latent heat load is 5.3%～21.0%,the increase in sensible heat load is 4.2%～5.3%and the increase in total conduction load is 4.1%～6.4%,respectively.
autoclaved aerated concreteextreme hot and humid climateheat and moisture transfersalinityloading
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