• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.12 no.5
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• pp.439-447
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• 2000

The PEM(Personal Environment Module) system is an individual air conditioning system developed in order to improve thermal comfort in office buildings. In this study, thermal characteristics of a PEM system have measured experimentally and compared with UFAC(Under Floor hir Conditioning) system in the EC(Environment Chamber) constructed in KIER. Results showed that the PEM system was better than UFAC system for thermal comfort and energy conservation.

• 한국전기화학회:학술대회논문집
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• 2001.06a
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• pp.157-160
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• 2001

• 한국신재생에너지학회:학술대회논문집
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• 2009.11a
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• pp.489-490
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• 2009

We investigated wind environment impact of the building of the KIER Waljeong Station in Jeju Island. From the preliminary qualitative analysis using the VirtualWind simulator, we confirmed that an influence caused by the 11m-tall 30m-aparted building on the 1.5MW wind turbine at Waljeong Station in not negligible. As a next step, VirtualWind simulation and the 100m met-tower measurement at the Waljeong Station is going to be compared to identify a building effect quantitatively.

• Proceedings of the SAREK Conference
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• 2005.06a
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• pp.21-21
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• 2005

• Proceedings of the SAREK Conference
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• 2005.06a
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• pp.195-195
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• 2005

• Proceedings of the SAREK Conference
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• 2007.06a
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• pp.200-200
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• 2007

• Solar Energy
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• v.7 no.2
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• pp.30-36
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• 1987

A shelf type solar dryer of simple design has been constructed and its performance evaluated by KIER (Korea Institute of Energy and Resources). Experimental result, the rate of moisture removal of the dried sguid in dryer is higher to that obtained by conventional sun drying. Design modification are suggest to improve its performance.

• Proceedings of the Korean Ceranic Society Conference
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• 2002.10a
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• pp.178.1-178
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• 2002

• Proceedings of the SAREK Conference
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• 2005.06a
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• pp.38-38
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• 2005

• Korean Chemical Engineering Research
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• v.47 no.5
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• pp.587-592
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• 2009

Heat transfer model and energy dissipation rate were investigated to examine the heat transfer mechanism in bubble columns with continuous operation. The energy dissipation rate($E_D$) obtained from the unsteady state heat transfer model based on the surface renewal theory was significantly small, comparing with the hydrodynamic energy dissipation rate($P_v$) calculated from the overall hydrodynamic energy balance based on the behaviors and holdups of gas and liquid phases in the column. It was found from these results that the energy dissipation rate based on the surface renewal theory is independent of the hydrodynamic energy dissipation rate obtained from the overall hydrodynamic energy balance in the bubble column, in considering their mechanism. The different two energy dissipation rates were correlated in terms of operating variables within this experimental conditions, respectively.