ZEMCH 2015 - International Conference Proceedings | Page 454

Figure 4 : Energy efficiency upgrading stage diagram .
When the prototype DnB fulfils the energy requirements it will be named DnBx . This new prototype can be improved so it can continue flowing through the energy efficiency loop creating new eligible options DnB ( x + 1 ). Therefore , x is a number given to identify the different options generated by the loop process . E . g . If a design prototype called “ D2B ” its implemented to the energy efficiency loop and after some modifications it achieve the energy standards , it turns its name into “ D2B1 ” and continue improving it energy efficiency . After each modification the design progress should be recorded and named differently ( D2B2 , D2B3 …) for further affordability calculations . This process can be repeated as many times as wanted .
Selecting the accurate choice
This stage is characterised by the evaluation of the options resulted from the energy efficiency upgrading stage . Then , the different options are ranked in a comparative table to assess the user
452 ZEMCH 2015 | International Conference | Bari - Lecce , Italy