Integrated energy simulation for building and mep systems in consideration of the characteristics of thermal energy media for thermal cascading systems

Ryota Kuzuki, Makoto Satoh, Takashi Akimoto, Shuzo Murakami, Hisaya Ishino, Kenichi Sasajima, Fumio Nohara, Hiroshi Ninomiya, Yasuhiro Tabata

Research output: Contribution to journalArticle

1 Citation (Scopus)


This research focuses on the evaluation of thermal energy efficiency in a building including thermal cascading systems such cogeneration, solar-thermal, and PY systems, combined with final energy consumption for space heating and cooling, dehumidifier, and a water heater. The thermal energy efficiency of the whole system varies depending on not only calorific balances but also on the temperature of heat conveying media and its flow-rate to each consumption unit. Based on the concept the simulation tools, the major development work involves the modeling of cogeneration units. As the first development phase, a sample system consisting of one unit of each form of equipment has been completed adopting the "forward method." This paper describes the overview of the method by showing some results for a sample case study.

Original languageEnglish
Pages (from-to)401-409
Number of pages9
JournalJournal of Environmental Engineering
Issue number662
Publication statusPublished - 2011 Apr



  • Cogeneration
  • Forward method
  • Integrated energy simulation
  • Partial load performance
  • Thermal energy balance

ASJC Scopus subject areas

  • Environmental Engineering

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