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Sustainability 2017, 9(2), 294; doi:10.3390/su9020294

Research on Energy-Saving Optimization for the Performance Parameters of Rural-Building Shape and Envelope by TRNSYS-GenOpt in Hot Summer and Cold Winter Zone of China

1
School of Environment Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
2
Tianjin University Research Institute of Architectural Design and Urban Planning, 192 Anshanxi Road, Tianjin 300072, China
*
Author to whom correspondence should be addressed.
Academic Editor: Umberto Berardi
Received: 4 January 2017 / Revised: 10 February 2017 / Accepted: 14 February 2017 / Published: 17 February 2017
(This article belongs to the Special Issue Sustainability Assessments of Buildings)
View Full-Text   |   Download PDF [3159 KB, uploaded 17 February 2017]   |  

Abstract

The aim of this paper is to optimize the building shape parameters and envelope parameters influencing the rural building energy consumption in cold winter and hot summer climate. Several typical models are established and optimized by integrated TRNSYS and GenOpt. Single-objective optimization has provided guidance to the multi-dimensional optimization. Building shape and envelope parameters are considered simultaneously by multi-dimensional optimization. Results of the optimization showed significant reduction in terms of EC (energy consumption). When O (building orientation) was SW (south by west) 10°, LWR (length-width ratio) was 1.1, WWRS (window-wall ratio in south) with the range of 0.6–0.8, ITE (insulation thickness of exterior wall) and ITR (insulation thickness of roof) was 0.05 m and 0.08 m respectively, the building had minimal energy consumption. The results also indicated that the optimal EWT (exterior window type) was plastic single-frame Low-E insulating glazing filled with inert gas, and the optimal shape of building is Re (rectangle). An effective method was provided to optimize the design of the rural building for the purpose of reducing building energy consumption in cold winter and hot summer climate. View Full-Text
Keywords: TRNSYS and GenOpt; multi-dimensional optimization; shape parameters; building envelope parameters; energy consumption TRNSYS and GenOpt; multi-dimensional optimization; shape parameters; building envelope parameters; energy consumption
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Lu, S.; Tang, X.; Ji, L.; Tu, D. Research on Energy-Saving Optimization for the Performance Parameters of Rural-Building Shape and Envelope by TRNSYS-GenOpt in Hot Summer and Cold Winter Zone of China. Sustainability 2017, 9, 294.

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