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• Byun, J
• Choi, Y
• Shin, J
• Park, M
• Kwak, D
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• Choi, Y
• Shin, J
• Park, M
• Kwak, D
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• Choi, Y
• Shin, J
• Park, M
• Kwak, D

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Energies 2012, 5(5), 1686-1704; doi:10.3390/en5051686

Article

Study on the Development of an Optimal Heat Supply Control Algorithm for Group Energy Apartment Buildings According to the Variation of Outdoor Air Temperature

Jae-Ki Byun ^1,* , Young-Don Choi ^1,* , Jong-Keun Shin ² , Myung-Ho Park ³  and Dong-Kurl Kwak ⁴

¹ State Key Laboratory of Renewable Energy System and Turbulent Flow Control, Department of Mechanical Engineering, Korea University, Seoul 136-713, Korea ² Department of Automotive Engineering, Hanzhong University, Gangwondo 240-713, Korea ³ Department of Mechanical Engineering, Kangwon National University, Gangwondo 245-711, Korea ⁴ Department of Electrical & Control Engineering, Kangwon National University, Gangwondo 245-711, Korea

* Authors to whom correspondence should be addressed.

Received: 12 March 2012; in revised form: 4 May 2012 / Accepted: 18 May 2012 / Published: 24 May 2012

(This article belongs to the Special Issue Energy Efficient Buildings and Green Buildings)

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Abstract: In the present study, we have developed an optimal heat supply algorithm which minimizes the heat loss through the distribution pipe line in a group energy apartment. Heating load variation of a group energy apartment building according to the outdoor air temperature was predicted by a correlation obtained from calorimetry measurements of all households in the apartment building. Supply water temperature and mass flow rate were simultaneously controlled to minimize the heat loss rate through the distribution pipe line. A group heating apartment building located in Hwaseong city, Korea, which has 1473 households, was selected as the object building to test the present heat supply algorithm. Compared to the original heat supply system, the present system adopting the proposed control algorithm reduced the heat loss rate by 10.4%.

Keywords: optimal control; distribution pipe; group energy; outdoor air temperature; heat loss; heating load; supply water; heat supply; household

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