Evaluation of Green Building Technology by introducing Micro co-generation system in convenience stores

摘要

The number of small scale buildings such as minimarts and convenience stores in Thailand has increased rapidly in the past few years. The interest of effective energy utilization has not been focused on the implementation of the new technologies due to high investment and lack of skilled workers for the maintenance. Comparing to the energy improvement results from several techniques at the present, the implementation of micro co-generation systems driven by natural gas engines to meet the energy demand of Thailand's convenience stores has been proposed in this study by using Primary Energy Saving Ratio (PES) as the assessment index to evaluate the energy performance. The results also showed that PES value can be increased up to 45% due to the utilization of higher efficiencies of micro co-generation system. However, the selection of the reasonable capacity of the system depends on the characteristic of the load profile and the objective of the utilization of micro co-generation system. Furthermore, the electrical and thermal efficiencies of the micro co-generation system are important factors that cannot be ignored in an effect to enhance the performance of micro co-generation systems.