Effect of Envelope Design on Energy Consumption Respect to EETP Index

EETP is an evaluation index for the whole thermal performance of envelopes. The effects of envelope related parameters on energy consumption for cooling and heating were analyzed respect to EETP index, the sensitivity factor analysis was performed. The results show that for the whole year, the heat transfer coefficient of wall is the most important factor considering both cooling and heating energy consumption, the following is building shape coefficient.