Recent Progress in Air-Conditioning and Refrigeration Research : A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2015

Title & Authors
Recent Progress in Air-Conditioning and Refrigeration Research : A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2015
Lee, Dae-Young; Kim, Sa Ryang; Kim, Hyun-Jung; Kim, Dong-Seon; Park, Jun-Seok; Ihm, Pyeong Chan;

Abstract
This article reviews the papers published in the Korean Journal of Air-Conditioning and Refrigeration Engineering during 2015. It is intended to understand the status of current research in the areas of heating, cooling, ventilation, sanitation, and indoor environments of buildings and plant facilities. Conclusions are as follows. (1) The research works on the thermal and fluid engineering were carried out in the areas of flow, heat and mass transfer, cooling and heating, and air-conditioning, the renewable energy system and the flow inside building rooms. Research issues dealing with air-conditioning machines and fire and exhausting smoke were reduced. CFD seems to be spreading to more research areas. (2) Research works on heat transfer area were carried out in the categories of heat transfer characteristics, pool boiling and condensing heat transfer and industrial heat exchangers. Researches on heat transfer characteristics included the economic analysis of GHG emission, micro channel heat exchanger, effect of rib angle on thermal performance, the airside performance of fin-and-tube heat exchangers, theoretical analysis of a rotary heat exchanger, heat exchanger in a cryogenic environment, the performance of a cross-flow-type, indirect evaporative cooler made of paper/plastic film. In the area of pool boiling and condensing, the bubble jet loop heat pipe was studied. In the area of industrial heat exchangers, researches were performed on fin-tube heat exchanger, KSTAR PFC and vacuum vessel at baking phase, the performance of small-sized dehumidification rotor, design of gas-injection port of an asymmetric scroll compressor, effect of slot discharge-angle change on exhaust efficiency of range hood system with air curtain. (3) In the field of refrigeration, various studies were carried in the categories of refrigeration cycle, alternative refrigeration/energy system, system control. In the refrigeration cycle category, a cold-climate heat pump system, $\small{CO_2}$ cascade systems, ejector cycles and a PCM-based continuous heating system were investigated. In the alternative refrigeration/energy system category, a polymer adsorption heat pump, an alcohol absorption heat pump and a desiccant-based hybrid refrigeration system were investigated. In the system control category, turbo-refrigerator capacity controls and an absorption chiller fault diagnostics were investigated. (4) In building mechanical system research fields, eighteen studies were reported for achieving effective design of the mechanical systems, and also for maximizing the energy efficiency of buildings. The topics of the studies included energy performance, HVAC system, ventilation, and renewable energies, piping in the buildings. Proposed designs, performance tests using numerical methods and experiments provide useful information and key data which can improve the energy efficiency of the buildings. (5) The field of architectural environment was mostly focused on indoor environment and building energy. The main researches of indoor environment were related to the user and location awareness technology applied dimming lighting control system, the lighting performance evaluation for light-shelves, the improvement evaluation of air quality through analysis of ventilation efficiency and the evaluation of airtightness of sliding and LS window systems. The subjects of building energy were worked on the energy saving estimation of existing buildings, the developing model to predict heating energy usage in domestic city area and the performance evaluation of cooling applied with economizer control. The studies were also performed related to the experimental measurement of weight variation and thermal conductivity in polyurethane foam, the development of flame spread prevention system for sandwich panels, the utilization of heat from waste-incineration facility in large-scale horticultural facilities.
Keywords
Thermal storage;Microchannel;Rotary heat mass exchanger;Desiccant dehumidification;Adsorption heat exchanger;District heating;Geothermal system;Centrifugal chiller;Stack effect;Air-conditioning;Building energy;Low energy house;Insulation;Lighting;
Language
Korean
Cited by
References
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2.
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3.
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4.
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7.
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8.
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11.
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12.
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13.
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14.
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15.
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16.
Kang, J., Sim, Y.-H., Byun, S.-Y., Chang, Y. S., and Kang, B. H., 2015, An Experimental Study on the Freeze Drying Process for Poly ${\gamma}$ Glutamic Acid, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 12, pp. 645-651.

17.
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18.
Kwon, M.-H., Go, M.-G., and Kim, N.-H., 2015, An Experimental Study on the Performance of a Cross- Flow-Type, Indirect Evaporative Cooler Made of Paper/Plastic Film, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 9, pp. 475-483.

19.
Bae, K.-J., Cha, D.-A., and Kwon, O.-K., 2015, Performance Characteristics of Fin-Tube Heat Exchanger having Large Diameter Oval Tube for Dryer, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 1, pp. 8-13.

20.
Kim, Y. M. and Song, M. H., 2015, Economic Analysis of GHG Emission Reduction Methodology in Pulp, Paper and Wood Industry Approved by Korea Voluntary Emission Reduction Program, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 1, pp. 39-43.

21.
Lee, S. M. and Park, B.-D., 2015, A Development of Heat Exchanger by using Small Bore Two-Port Tube, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 2, pp. 63-68.

22.
Hwang, J. H., Na, B. C., Oh, S. K., Koo, K. M., Lee, J. K., and Ahn, Y. C., 2015, Fouling Characteristics of Washable Shell and Coil Heat Exchanger, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 2, pp. 69-74.

23.
Song, C. H., Yoon, S. H., and Choi, J. S., 2015, A Study of Diffusion Bonding Process for High Temperature and High Pressure Micro Channel Heat Exchanger Using Inconel 617, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 2, pp. 87-93.

24.
Park, S.-I., Ko, C.-B., and Lee, Y.-S., 2015, An Experimental Study on Heat Transfer Performance of Heating Medium Oil Fluidized Bed Heat Exchanger, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 3, pp. 146-151.

25.
Yoo, S.-Y., Kim, Y.-J., Jung, N.-Y., Kim, K.-M., and Lee, J.-M., 2015, A Study on Temperature Characteristics of KSTAR PFC and Vacuum Vessel at Baking Phase, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 3, pp. 158-168.

26.
Ahn, S. W., Lee, M. S., and Bae, S. T., 2015, Effect of Rib Angle on Thermal Performance in a Two Wall Convergent/Divergent Channel with Ribs on One Wall, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 4, pp. 195-203.

27.
Kim, N.-H., 2015, An Experimental Study on the Airside Performance of Fin-and-Tube Heat Exchangers Having Wide Louver Fin, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 5, pp. 254-262.

28.
Kim, N.-H., 2015, An Experimental Study of the Effect of Regeneration Area Ratio on the Performance of Small-Sized Dehumidification Rotor for Residential Usage, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 5, pp. 277-282.

29.
Kim, Y.-H. and Kim, H.-J., 2015, Design of Gas- Injection Port of an Asymmetric Scroll Compressor for Heat Pump Systems, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 6, pp. 300-306.

30.
Son, S. G., Kim, Y. C., and Lee, D.-Y., 2015, Theoretical Analysis of a Rotary Heat Exchanger Based on a Simplified Model, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 8, pp. 409-417.

31.
Kim, D. H., Na, S. J., Kim, Y., Choi, J. S., and Yoon, S. H., 2015, Experimental Study on the Thermal Performance of a Printed Circuit Heat Exchanger in a Cryogenic Environment, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 8, pp. 426-431.

32.
Sung, S.-K., 2015, Effect of Slot Discharge-Angle Change on Exhaust Efficiency of Range Hood System with Air Curtain, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 9, pp. 468-474.

33.
Ahn, J. and Park, J. W., 2015, Conjugate Heat Transfer Analysis of an Ethylene Furnace, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 10, pp. 515-519.

34.
Ahn, K. H., Song, W. J., and Cha, D. J., 2015, Effect of a Preprocessing Method on Inverting Chemiluminescence Images of Flames Burning Substitute Natural Gas, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 12, pp. 609-619.

35.
Kim, J.-S. and Kim, S.-B., 2015, Thermal Performance of the Bubble Jet Loop Heat Pipe Using Eccentric Heater in Evaporating Section, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 12, pp. 652-658.

36.
Sohn, B. H., Choi, J. H., and Min, K. C., 2015, Heating Performance of Geothermal Heat Pump System Applied in Cold Climate Region(Mongolia), Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 1, pp. 31-38.

37.
Park, J. I. and Park, S. T., 2015, Energy Saving Components Analysis in Hybrid Desiccant Dehumidification System, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 11, pp. 603-608.

38.
Lee, D. W., 2015, Study of Performance Optimization as an Alternative Refrigerant HFC152a in a Mobile Air Conditioning System, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 6, pp. 321-327.

39.
Kim, Y. S. and Yun, R., 2015, Performance of Carbon Dioxide System for Freezing and Refrigeration, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 2, pp. 81-86.

40.
Kim, D.-S. and Lee, D.-Y., 2015, Simulation of a Polymer-Water Adsorption Refrigerator using Plate- Type Adsorption Heat Exchangers, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 2, pp. 94-102.

41.
Jeong, S.-K., Han, S.-J., and Jung, Y.-M., 2015, Practical Modeling and PI Controller Design for Centrifugal Water Chillers, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 4, pp. 187-191.

42.
Jeong, S.-K., Lim, S.-K., and Ryu, K.-S., 2015, Operating Number Control of Compressors Based on Cooperative Logic for a High Efficiency Centrifugal Water Chiller, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 5, pp. 233-240.

43.
Lee, J. J., Jeon, Y. S., Kim, S. J., and Kim, Y. C., 2015, Experimental Analysis on the Performance Characteristics of an Ejector according to Inlet Pressure and Nozzle Position, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 5, pp. 263-268.

44.
Kim, D.-S., 2015, Simulation of Alcohol Absorption Heat Pumps for Heating Performance, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 5, pp. 269-276.

45.
Cho, H. H. and Park, C. S., 2015, A Numerical Study on the Performance of a Vapor Compression Cycle Equipped with an Ejector Using Refrigerants R1234yf and R134a, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 7, pp. 362-368.

46.
Ryu, J. H. and Cho, H. H., 2015, Performance Simulation of a R744-R717 Cascade Refrigeration System According to Operating Conditions, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 10, pp. 497-505.

47.
Chang, M., Jung, D. I., Jung, J. H., and Kim, Y. C., 2015, An Experimental Study on the Heat Transfer Performance of an Air-Source Heat Pump Using a PCM Unit for Continuous Heating, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 10, pp. 537-543.

48.
Han, D. W., Chang, Y.-S., and Kim, Y. C., 2015, Fault Symptom Analysis and Diagnosis for a Single- Effect Absorption Chiller, Korean Journal of Air- Conditioning and Refrigeration Engineering, Vol. 27, No. 11, pp. 587-595.

49.
Kim, J.-S., Shin, H.-J., Kim, J.-Y., and Park, B.-J., 2015, Development of Technology to Secure Refuge Space by Using Existing Restroom, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 1, pp. 24-30.

50.
Kim, D.-C., Chung. K.-S., and Kim, Y.-I., 2015, A Study on Economic Analysis and Performance Appraisal of Compact Type Variable Air Volume, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 1, pp. 44-49.

51.
Lee, S.-W., Hong, H. K., and Cho, S.-H., 2015, Energy Simulation for Conventional and Thermal- Load Controls in District Heating, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 1, pp. 50-56.

52.
Kwon, Y.-I., 2015, A Study for Optimization the Ventilation Performance of the Computer Room, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 2, pp. 57-62.

53.
Min, H.-K., Kim, S.-B., Kim, B.-W., Kim, H.-K., and Park, Y., 2015, A Study of the Sectionalizing for Pipe Deterioration Evaluation in Industrial Facilities, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 2, pp. 103-111.

54.
Cho, J., Kim, J., Lee., S., and Kang, H., 2015, Interaction Analysis between Cooling-to-Heating Load Ratio and Primary Energy Consumption of HVAC&R System for Building Energy Conservation, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 3, pp. 113-122.

55.
Cho, S.-H., Hong, S.-K., and Lee, S.-J., 2015, Actual Energy Consumption Analysis on Temperature Control Strategies(Set-point Control, Outdoor Temperature Reset Control and Outdoor Temperature Predictive Control) of Secondary Side Hot Water of District Heating System, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 3, pp. 137-145.

56.
Choi, S.-H. and Wang, G.-N., 2015, Characteristic Analysis of Electromagnetic-ultrasonic Guided Waves for Defect Signals in Condenser Tubes, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 3, pp. 174-178.

57.
Cho, S.-H. and Hong, S.-K., 2015, Actual Energy Consumption Analysis of Temperature Control Strategies for Secondary Side Hot Water District Heating System with an Inverter, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 4, pp. 179-188.

58.
Lee, U.-J. and Hong, H., 2015, Performance Enhancement of Solar Thermal Storage Tank with Heat Exchange Coils(Part 1:Verification Experiment), Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 4, pp. 213-218.

59.
Lee, Y.-H. and Heo, Y.-C., 2015, The Replacement Plans for Aged Public Water Supply Pipes in Apartment Buildings:Especially Apartment Buildings in Bucheon, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 4, pp. 228-232.

60.
Hong, S.-K. and Cho, S.-H., 2015, The Experimental Study of the Heat Flux and Energy Consumption on Variable Flow Rate for Secondary Side of DHS, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 5, pp. 247-253.

61.
Kim, N.-Y., Jo, J.-B., and Han, H., 2015, Ventilation Characteristics by Traffic Piston Effect in Underground Network-type Road Junction, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 7, pp. 337-343.

62.
Hwang, J., Jeong, A. H., Jeon, B. H., and Ahn, Y. C., 2015, Thermal Performance Evaluation of the Window Systems with Air-bubble Sheets, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 9, pp. 463-467.

63.
Hong, J. K., 2015, A Study on the Facility Eligibility Inspection of National Inpatient Isolation Units, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 10, pp. 506-514.

64.
Kim, K. S., 2015, Analysis of the Economic Efficiency of the District Heating and Gas Engine Co-Generation System Compared with the Central Heating System, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 10, pp. 544-551.

65.
Seo, B.-M., Yu, B.-H., and Lee, K.-H., 2015, A Detailed Analysis of the Part Load Ratio and Cooling Energy Characteristics of Chiller Operation in an Office Building, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 11, pp. 567-573.

66.
Baek, N., Han, S., Lee, W. J., and Shin, U., 2015, An Evaluation of the Solar Thermal Performance of the Solar/Geo Thermal Hybrid Hot Water System for a Detached House, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 11, pp. 581-586.

67.
Choi, K., Kim, Y., Lee, H., and Seo, J., 2015, A Study on the User and Location Awareness Technology Applied Dimming Lighting Control System to Save Energy, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 1, pp. 14-23.

68.
Kong, D.-S., Park, J.-M., Jang, Y.-S., Lee, K.-H., and Hu, J.-H., 2015, Development of an End-use Analysis Tool for Existing Buildings Based on Energy Billing Data, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 3, pp. 128-136.

69.
Lee, H.-J., 2015, Experimental Study of the Relationship between Weight Variation and Thermal Conductivity in Polyurethane Foam, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 5, pp. 241-246.

70.
Park, Y. C., 2015, Modeling of Winter Time Apartment Heating Load in District Heating System Using Reduced LS-SVM, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 6, pp. 282-292.

71.
Kim, C.-Y., Park, J.-I., Kim, D.-G., Shin, B.-H., and Kum, J.-S., 2015, A Study of the Indoor Thermal Environment in Apartment Buildings in Freezing Weather Operation of Heat Recovery Ventilator by CFD Simulation, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 6, pp. 293-299.

72.
Shin, H.-J., In, K.-H., and Yoo, Y.-H., 2015, An Experiment Study for Flame Spread Prevention System of Snadwich Panels, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 6, pp. 307-312.

73.
Oh, S., Lee, H., Kim, Y., and Seo, J., 2015, Research on Lighting Performance Evaluation for Different Curvature Reflection Rate in Residential Space, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 6, pp. 328-336.

74.
Kong, D.-S., Chang, Y.-S., and Huh, J.-H., 2015, Selecting of the Energy Performance Diagnosis Items through the Sensitivity Analysis of Existing Buildings, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 7, pp. 354-361.

75.
Baek, N., Kim, S., Oh, B., Yoon, J., and Shin, U., 2015, Energy Performance Evaluation of Low Energy Houses using Metering Data, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 7, pp. 369-374.

76.
Lee, H., Rogers, K. E., Seo, J., and Kim, Y., 2015, A Study on Lighting Performance Evaluation of Light-Shelf using Crystal Face, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 8, pp. 395-401.

77.
Lee, J., Hyun, I., and Lee, K. H., 2015, Utilization of Heat from Waste-Incineration Facility for Heating Large-Scale Horticultural Facilities, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 8, pp. 418-425.

78.
Son, J.-E., Hyun, I.-T., Lee, J.-H., and Lee, K. H., 2015, Comparison of Cooling-Energy Performance Depending on the Economizer-Control Methods in an Office Building, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 8, pp. 432-439.

79.
Jeong, J.-H. and Song, D., 2015, Study on Improvement of Air Quality through Analysis of Ventilation Efficiency in Complex Enclosures of a Ship, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 8, pp. 440-447.

80.
Park, J. J., Yun, Y. R., Kim, Y. I., and Chung, K. S., 2015, Effect of Lock Operations on Airtightness of Sliding and LS Window Systems, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 9, pp. 449-454.

81.
Yu, B. H., Seo, B.-M., Moon, J.-W., and Lee, K. H., 2015, Analysis of the Part Load Ratio Characteristics and Gas Energy Consumption of a Hot Water Boiler in a Residential Building under Korean Climatic Conditions, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 9, pp. 455-462.

82.
Park, J., Lee, H., Seo, J., and Kim, Y., 2015, A Study on the Suggestion of a Lighting Control System Applying General Illumination and Technology of User and Location Awareness, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 10, pp. 527-536.

83.
Noh, B. I., Choi, J., and Seo, D., 2015, A Study on the Classification Criteria of Climatic Zones in Korean Building Code Based on Heating Degree-Days, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 11, pp. 574-580.

84.
Im, G., Kim, J., Park, C., and Cho, H., 2015, An Experimental Study of the Bioelectrical Signals and Subjective Response in Changing from Unpleasant to Pleasant Temperatures in a Learning Environment, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 11, pp. 596-602.

85.
Choi, Y., Song, D., Sohn, W.-W., and Lim, Y., 2015, Analysis of Indoor Temperature and Humidity Changes with the Operation of the Condense Drying Dehumidifier, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 12, pp. 626-632.

86.
Jung, J.-H., 2015, A Study on Optimal Control of Slab Cooling Storage Considering Stochastic Properties of Internal Heat Generation, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 6, pp. 313-320.

87.
Jang, S. and Ahn, J., 2015, Design of the Outlet-Port Tube of a Cyclone-Type Oil Separator for a Compressor, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 8, pp. 402-408.

88.
Kim, J.-Y., Kim, J.-S., and Lee, S.-G., 2015, Study on Field Experiment of Stack Effect Reduction in Stairwell of Building, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 27, No. 9, pp. 484-490.