Economic and environmental impact study on condensation heat recovery system in hotel buildings

Discusses both the configuration of cold and heat sources and the heat recovery mode of a hotel in Shanghai. Compares and analyses the conventional system, part-load condensation heat recovery (PCHR) system and all-load condensation heat recovery (ACHR) system by economic and energy conservation analysis as well as carbon emission potential. The results show that the increase of initial investment of PCHR system and ACHR system than conventional system makes small difference, which is 264 000 yuan and 268 000 yuan respectively, but they can separately save operating costs of 604 000 yuan and 741 000 yuan for each cooling period. They have a significant energy saving effect which can reduce carbon emissions separately by 10% and 9.2%. Therefore under the premise of no significant increase of the unit environmental cost, ACHR mode has better performance of economy, energy saving and environmental protection in east China.