To understand building energy need, it needs to take a look into basics of energy about heat transfer and types, thermodynamic laws, differences between temperature and heat. So you can check the 'crash course' youtube channel page about it. I assume that watching is more catchy than reading. 
  • Thermodynamics: Crash Course Physics #23 
thermo dynamics firts law --> internal energy  = heat - work    ( u = q - w ) 
thermo dynamics second law --> heat flow from hotter space to colder space 
entropy --> the more disorder the more entropy --> universe has tendency to increase entropy (solid -> liquid -> gas)
  • The Physics of Heat: Crash Course Physics #22 
thermal energy (U) = internal energy = heat - work    ( u = q - w ) 
heat transfer (Q =m.c.T )
temperature and phase changes (Q =m.c.T and Q=m.L)
thermal conductivity (K) 
conduction (solid-solid heat transfer) / convection (liquid,gas heat transfer) / radiation (heat transfer by electromagnetic wave )

Secondly, I found very useful website about Energy evaluation and controlling. 'Altensis is the first sustainability management company in Turkey that provides these services.' company said more clearly their purpose. From this site it is possible to reach desgin buildier software program to create detailed building energy models. They have many several services form leed certificate consultancy to product sustainability efficiency consultancy. They have also education programs about design builder, energy plus, leed and breeam certificate. It is quite interesting and I am also thinking to apply some of them.

Lastly, I would like to talk about an energy modeling, analysis and optimization program which is called 'design builder'. They use energyplus as simulation engine. That wokrs for me.
I downloaded 30 days trail to understand more energy modeling strategy. It seems quite positive to experiment several programs. It helps to understand the concept.

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