Multi-criteria evaluation of medium-sized residential building with micro-CHP system in South Korea

Yujun Jung, Joonbyum Kim, Hoseong Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In this study, a medium-sized residential building is analyzed when an internal combustion engine-based combined heating and power (CHP) system is applied. The multi-family building with a floor heating system is selected to represent typical Korean residential situation. Simulation models are developed for the building, prime mover, thermal storage system, and cooling and heating systems. The validated CHP model is integrated to the building, and it is operated with a thermal load following method. The CHP applied residential building model is compared to the baseline model with a grid power and a gas fired boiler system, in terms of energy, environment, and economics. When the CHP system is applied to the residential building in South Korea, total primary energy consumption is decreased by 18.4%, CO 2 emissions by 11.8%, and operation cost by 9.6%, respectively. Based on the facility and operating cost, the payback year is calculated as 10.2. In addition, the building performance is further discussed in terms of weather conditions, utility fee change and energy utilization method.

Original languageEnglish
Pages (from-to)201-215
Number of pages15
JournalEnergy and Buildings
Volume193
DOIs
Publication statusPublished - 2019 Jun 15

Keywords

  • Energy analysis
  • Micro combined heat and power
  • Residential building
  • TRNSYS

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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