• 한국소음진동공학회논문집
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• 제20권10호
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• pp.960-967
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• 2010

The sound field can be classified to the direct, diffract and reverberant sound field. If the sound absorption material in a room is not applied sufficiently, the reverberant sound field increases and the sound pressure in a room also increases when the sound source exists in a room. Therefore, the reverberation time should be controled in order to reduce the reverberant sound as well as sound pressure level in a room. Even though the reverberation time is specified and researched widely in architectural engineering, it is rarely performed in a marine engineering. Therefore, in this research, the reverberation time in a navel vessel is researched related to the noise reduction in a cabin.

• 공기청정기술
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• 제21권2호
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• pp.9-19
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• 2008

• Journal of Advanced Marine Engineering and Technology
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• 제32권5호
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• pp.717-723
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• 2008

The purpose of this study is to measure and analyze the indoor thermal conditions of a 8,500GT class chemical carrier which was launched on July 2007. The measurement was operated from 4th June to 4th June 2007, just before handing over to Owner. Followings are the results of this study. (1)The temperature variations of supply air were related to the outdoor temperature variations, but the humidity was stable at $65{\sim}80%$. (2)The temperature variations at the representative position of bridge, restaurant, crew's cabin showed gentle slopes. but that of conference room was very steepy. The humidities of bridge and restaurant were unstable because of outdoor-contact and cooking, respectively. (4)The temperature and humidity of ECR(Engine Control Room) which was designed to supply heating and cooling by PAC(Package Air Conditioner) were directly affected by the operating conditions of PAC. (5)The measured supply air volume from dampers of bridge, crew's cabin and conference room were satisfied with the design supply air volume. (5)For the improvement of the indoor thermal conditions, the temperature of crew's cabin and restaurant and the humidity of conference room, and the temperature and humidity of bridge should be controlled, respectively.

• International Journal of Naval Architecture and Ocean Engineering
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• 제2권3호
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• pp.132-138
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• 2010

In the present study, the real-time monitoring system is developed based on the wireless sensor network (WSN) and power line communication (PLC) employed in the 3,000-ton-class training ship. The WSN consists of sensor nodes, router, gateway and middleware. The PLC is composed of power lines, modems, Ethernet gateway and phase-coupler. The basic tests show that the ship has rather good environments for the wired and wireless communications. The developed real-time monitoring system is applied to recognize the thermal environments of main-engine room and one cabin in the ship. The main-engine room has lots of heat sources and needs careful monitoring to satisfy safe operation condition or detect any human errors beforehand. The monitoring is performed in two regions near the turbocharger and cascade tank, considered as heat sources. The cabin on the second deck is selected to monitor the thermal environments because it is close to the heat source of main engine. The monitoring results of the cabin show the thermal environment is varied by the human activity. The real-time monitoring for the thermal environment would be useful for the planning of the ventilation strategy based on the traces of the human activity against inconvenient thermal environments as well as the recognizing the temperature itself in each cabin.

• 한국실내디자인학회논문집
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• 제15권1호
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• pp.158-165
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• 2006

The space of leisure boats & yachts is formed by interior design elements and shapes are formed by combination of those elements. By means of configuration of the design elements, space is made in a ship and patterns in an inside space are made through production. These space can be categorized as (1) cabin(common cabin, staterooms, one-cabin), (2) salon, (3) galleys & dinette, (4) heads(showers, toilets, bidets, sinks), (5) cockpit, (6) wheelhouses, navigation stations, (7) fore peaks, (8) engine room, (9) deck etc. Interior materials are classified into (1) walls(bulkheads & lining wall), (2) floors(sole), (3) ceilings(overheads), (4) doors & windows, (5) furniture, (6) lightings and (7) Hardware & decoration in large, medium and small sizes, which constitute interior design elements of a leisure boat & yacht. The materials used in leisure boats & yachts have properties of lightweight, noise and vibration resistance, fire & flame retardant, stability, strengths, lifespan, appearance and special operation in construction.

• 한국산림과학회지
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• 제97권1호
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• pp.118-126
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• 2008

본 연구는 마케팅 관점에서 국립자연휴양림의 객실가격 전략을 개발하고자 실시하였다. 분석방법은 객실유형(숲속의집, 산림문화휴양관) 및 객실규모(4, 5, 6, 7 인실)에 따른 가격민감성(PSM) 분석을 적용하였으며, 6개 국립자연휴양림에서 236명의 객실 숙박이용객을 대상으로 현지설문조사를 실시하였다. 그 결과 자연휴양림 객실규모에 있어서는 객실규모가 클수록 가격민감성이 높았으며, 객실유형별로는 숲속의 집이 산림문화휴양관 보다 가격민감성이 높은 것으로 나타났다. 또한 현재 성수기 객실가격은 6인실과 7인실 산림문화휴양관을 제외한 모든 객실에서 가격수용대 내에 포함되어 있는 것으로 나타났다. 이들 객실의 판매를 촉진시키기 위해서는 적정수준의 가격 인하를 검토하거나, 가격인하가 용이하지 않을 경우 고객이 지각할 수 있는 객실시설물 고급화 등 가격 이외의 다른 가치를 높이기 위한 전략이 필요할 것이다.

• 한국실내디자인학회논문집
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• 제22권1호
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• pp.328-338
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• 2013

This study aims at exploring the characteristics of interior design of the Cruise line running Korea, Japan and China, and the satisfaction level of the Korean passengers for the interior design. Literature review and the physical traces of the cruise ship interior including 4 types of cabins and public spaces such as main hall, restaurants, outdoor swimming pool, jogging track, theater, meeting room, duty-free shop were performed. Also, the questionnaire to the passengers were used to understand their preferences and satisfaction level for each space. The results show that the passengers are very satisfied with the color and atmosphere of the cabin, while they complain the inconvenience of the bathroom size. Also in the public space, they prefer western classic style and modern style rather than Asian or Korean style. This means that they want the exotic feeling coming out of home. Also they prefer buffet restaurant, duty-free shop, theater, observation platform compared to other public spaces. However, the problem is that there are no place for the Korean family members with young children except for the outdoor pool. The interior and the program should be redesigned for the public spacs such as cinema room, family karaoke and internet-free room for Korean passengers.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2010년 춘계학술대회논문집
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• pp.263-270
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• 2010

In this study, an air cleaner is considered to improve comfort, safety, and health of automobile passengers. The performance and installation conditions of the air cleaner have been studied to investigate their effects on the air quality in the cabin room using numerical analysis. A five-passenger sedan and a seven-passenger minivan that have comparatively large indoor volume have been considered. The distributions of the local mean age and the volume averaged age of indoor air are calculated according to the variation of the placement and the air flow of the air cleaner. In addition, a decrease of contamination concentration, especially VOCs(volatile organic compounds), by the air cleaner is numerically analyzed with time-accurate unsteady calculation to quantify the effect of the air cleaner on the indoor air quality. As a result, the effective installation and operation conditions of the air cleaner for the automobile cabin room could be suggested.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1389-1396
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• 2008

There are many studies on the ride comfort for the train from the viewpoint of passenger. But there are only a few studies on the ride comfort for engineers in the locomotive. The railway has the track conditions, such as irregularities, rail joints, turnout, level crossing, transition curves and super-elevation ramps, which cause vibrations. Generally, the ride comfort for the train is evaluated by using the vibrations. In this study, vibration accelerations have been measured in the cabin rooms of locomotives, such as DL(Diesel-electric Locomotive), DHC(Diesel Hyduralic Car) and NEL(New-Electric Locomotive) when running on the Kyoungbu conventional line. And then, their ride comforts has been analyzed and evaluated by statistical method according to UIC 513R.

• 한국실내디자인학회논문집
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• 제19권1호
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• pp.226-235
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• 2010

As marine leisure is getting popular around the world, people's interest in cruise ship is increasing rapidly. Now it became possible to make cruise ship with Korean technology, as a result of continuous research and development. However, as cruise ships are getting bigger and more popular, new cruise interior design is required to satisfy various clients' aesthetic and functional demands. Therefore, more researches for cruise interior design are needed. The purpose of this study is to analyze the characteristics of planning and design of passenger's cabins in cruise ship. The scope of this research is limited to the types in the 2004-2010 in Large Cruise Ships. Method of this study are document study and case study, in particularly, case study is conducted for the specific design methods through case analysis. The results of this study are as follow : One of the transitions in the cruise cabin designs is that cabins with balconies occupy a large portion of the entire cabins. As the functions of these balconies are diversifying, more distinctive forms of balcony are showing up. In particular, the cabins which are connected to public space differentiate themselves from those with the same rates; it meets the demands of the clients who require high quality services. In terms of cabin design, a futuristic, distinctive cabin that has incorporated will be a very important function in determining the value of the cruise ship. Based on the results of this research, application of the rapid changes in cabin design and studies about more diversified and advanced design are required.