TY - GEN
T1 - Energy, environmental, economic evaluation of residential building with micro-CHP in South Korea
AU - Jung, Yujun
AU - Lee, Hoseong
N1 - Funding Information:
This research was supported by the Energy Efficiency & Resources Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), funded by the Ministry of Trade, Industry & Energy, Republic of Korea. (No. 2018201060010B).
Publisher Copyright:
© 2019 ASHRAE.
PY - 2020
Y1 - 2020
N2 - In South Korea, energy consumption of the building section accounts for 21% of the total energy consumption. When it comes to residential buildings, it takes 11% of the total energy consumption. The energy consumption is estimated to increase continuously as world energy consumption increases. In addition, CO2 emission has been increased accordingly. In order to reduce energy consumption and emission, a micro-CHP (Combined Heating and Power) is suggested to be applied in the typical Korean residential building. Based on the Korean multi-family building, the building energy analysis is conducted by comparing the conventional grid and boiler system to the micro-CHP system. The CHP model is developed with combining the stratified tank, and it is operated with the thermal load following method. Especially, the floor heating system is applied to the building. The results are presented in terms of annual energy consumption, environmental impact, and economic evaluation. According to the above results, it can be seen that the CHP application in the residential building in Korea has advantage in terms of energy saving and CO2 reduction. However, there is not much benefit from an economic point of view. The main reason is the utility rate policy in Korea. Gas price is relatively expensive and electricity price is relatively cheap as compared to other countries. Since it is not easy to change the utility rate right now due to the complicated interest relations, there must be government incentives on using CHP systems.
AB - In South Korea, energy consumption of the building section accounts for 21% of the total energy consumption. When it comes to residential buildings, it takes 11% of the total energy consumption. The energy consumption is estimated to increase continuously as world energy consumption increases. In addition, CO2 emission has been increased accordingly. In order to reduce energy consumption and emission, a micro-CHP (Combined Heating and Power) is suggested to be applied in the typical Korean residential building. Based on the Korean multi-family building, the building energy analysis is conducted by comparing the conventional grid and boiler system to the micro-CHP system. The CHP model is developed with combining the stratified tank, and it is operated with the thermal load following method. Especially, the floor heating system is applied to the building. The results are presented in terms of annual energy consumption, environmental impact, and economic evaluation. According to the above results, it can be seen that the CHP application in the residential building in Korea has advantage in terms of energy saving and CO2 reduction. However, there is not much benefit from an economic point of view. The main reason is the utility rate policy in Korea. Gas price is relatively expensive and electricity price is relatively cheap as compared to other countries. Since it is not easy to change the utility rate right now due to the complicated interest relations, there must be government incentives on using CHP systems.
UR - http://www.scopus.com/inward/record.url?scp=85095441117&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85095441117
T3 - ASHRAE Transactions
SP - 474
EP - 481
BT - ASHRAE Transactions - 2020 ASHRAE Winter Conference
PB - ASHRAE
T2 - 2020 ASHRAE Winter Conference
Y2 - 1 February 2020 through 5 February 2020
ER -