Measurement study on demand of domestic hot water in residential buildings

摘要

The currently running huge substation refurbishing program in Budapest required the surveying of domestic hot water consumption habits that changed greatly in the past 15 years. Using the results of the measurements we worked out a relationship based on probability consideration with a confidence level determined in advance. At a consumer group, characterised with given flat number, the average daily hot water consumption and the duration diagram of the consumption can be determined on at least a confidence level of 99% with the help of the relationship. The domestic hot water production of the heat exchanger and the tank connected in parallel can be simply rated from the duration diagram.