Energy-saving Facilities Research Articles

Applying Green Hotel to Enhance Service Quality of The Front Office Staff at Mercure Bali Legian

Purpose: This study aims to analyze the application of green hotels to improve the service quality of front office staff at Mercure Bali Legian and to identify indicators that need to be improved and maintained in the service quality of front office staff at the hotel. Research methods: The sample selection is 65 respondents and three ants, and the sampling is done by incidental sampling technique. A questionnaire is distributed to respondents. The analyticamethodue used in this research is descriptive qualitative analysis to determine the application of green hotels at Mercure Bali Legian and dynamic quantity analysis, namely imporimportance-performanceysis (IPA) yous, se d to classify service quality indicators that need to be improved and maintained into Cartesian diagram. Results and discussion: The application of green hotels has been maximally implemented by the front office staff at Mercure Bali Legian. The results of this study indicate that two indicators need to be improved in the quality of service, namely the indicator of handling guest complaints quickly and well and the indicator of staff providing information abouassistancees with environmentally friendly actions that are easy for guests to understand. Implication: There are five indicators that the front office staffs need to maintain the quality of service, namely the hotel lobby indicator is clean and smoke-free, supports the environmentally friendly concept during the check-in process by minimizing the use of paper, the staffs inform the hotel facilities including energy-saving facilities in the hotel, giving welcome drink using drinks from local products, and front office staffs providing information about the cashless program Keywords: green hotel, front office, quality of service, importance-performance analysis.

Evaluation of Energy-Saving and Improvement of the Thermal Environment of the House with High Thermal Insulation, Heat Storage Performance, and Fitting Adjustment

In this study, we assessed a lifestyle in which occupants adjust the fittings based on climate, weather, and time, in terms of energy efficiency and thermal conditions. The proposed solution is a Zero Energy House (ZEH) with high thermal performance. The thermal performance of the building envelope can be adjusted by changing the operation of fittings based on the indoor and outdoor environments, as well as air conditioning usage. Many studies have achieved zero energy by increasing the thermal performance of an envelope and using highly efficient energy-saving facilities; however, uniquely, here we focus on occupant behavior to change the building envelope condition. In this paper, numerical analysis was used to investigate the effect of adjusting the fittings on buildings with different thermal performances of the envelope. The analysis demonstrates that, while more research into measures is needed in the summer, the adjustment of fittings and thermal storage properties in the winter season can reduce the heating load by 48–59% compared to the normal ZEH and improve the indoor environment. In terms of the heating and cooling load throughout the year, the results also showed that applying fittings adjustment and heat storage to an ordinary house can provide nearly the same energy-saving effect as a highly insulated house.

Primary energy in ecological analysis of building materials

The analysis of buildings in terms of energy consumption most often focuses on the service life of the building objects. This results, on the one hand, from the fact that the service life is the longest in the entire life cycle of the facility, and on the other hand, from the fact that energy consumption related to construction activities is a very heavy burden on the natural environment. It should be realized that more than 40% of the world's energy production is used by construction, about 35% of the world's greenhouse gas emissions come from construction and over 50% of processed materials comes from construction. However, it should be remembered that the remaining stages of the life cycle of a building object also contribute to the increased energy demand in construction. In the case of buildings erected with traditional technologies, the energy needed to produce materials is about 10%, but in the case of energy-saving facilities for which the demand for operational energy significantly decreases, the production energy is already 22%. Therefore, green building assessments should consider the entire life cycle of a building. In the countries of Western Europe and the USA, the first attempts were made to assess the impact of the broadly understood construction industry on the environment. Various ecological assessment systems for construction have been developed. All systems developed so far are far from perfect, primarily because they do not evaluate the building as a whole and do not consider the pre-operation period. In this study, it was proposed to extend the ecological analysis of construction to include the period of preparation of materials and all accompanying processes. The primary energy of building materials was also analysed. The conclusions contain indications concerning material solutions, considering the assessment of primary energy.

Research on Green Transformation of Campus Sponge and Energy Saving Facilities on Sloping Land

Based on the renovation of sponge and energy-saving facilities in a middle school in Nanning, this paper systematically studies the overall elevation of the campus, the composition of the drainage system and the layout of space functions, and formulates a characteristic scheme for the renovation of sponge and energy-saving facilities according to the characteristics of the sloping campus. In order to control the total amount of rainwater runoff, the sponge transformation mainly adopts the transformation methods of partition catchment, upper storage and lower use, multi-stage detection and classification treatment. For the purpose of solar energy and wind energy utilization, solar photovoltaic panels and small-scale wind power generation system are adopted. The application effects of sponge and energy-saving facilities are estimated and evaluated.

The Effects of Manufacturing Firms’ Investment on Energy Saving Facilities on Energy Savings in Korea

본 연구는 2013~2016년 한국신용평가원의 기업자료와 한국에너지관리공단의 에너지 사용량 자료를 사용하여 제조업에서 에너지절약시설에 대한 투자가 에너지 절감량에 미치는 영향을 분위수 회귀모형을 통해 추정하였다. 에너지절약시설에 대한 투자가 에너지 절감에 긍정적으로 작용하리라는 예상에는 큰 이견이 없을 것이나, 이미 일정 수준의 에너지 절감을 달성한 기업의 경우에는 추가적인 시설 투자를 하더라도 에너지 절약 효과가 체감할 수 있다는 점은 아직 국내에서 실증적으로 확인된 바가 없다. 그러므로 본 연구는 절약시설 투자의 수확체감효과를 실증적으로 분석하여 관련 주제를 분야의 학문적 빈틈을 메우자고 한다. 경제학적 결론에 도달하기 위해 조건부 평균을 추정하는 전통적인 회귀모형에서 벗어나, 분위수 회귀모형을 사용하여 에너지 절감량 분위수에 따른 에너지절약시설 투자효과를 차별적으로 추정한다. 추정 결과, 우리나라 제조업 기업들의 에너지 절감량은 기업의 특성이 유사하다면 절감량이 높은 기업군일수록 에너지 절약시설 투자에 대한 영향이 적었으나, 에너지 절감량이 낮은 기업군일수록 투자의 영향이 큰 것으로 나타났다. 따라서 에너지 절감량에 따라 기업에게 차등적인 지원기준을 제시하여 에너지 절약의 노력이 계속될 수 있도록 정책적 에너지절감량 달성목표를 기업별로 설정하는 것이 요구된다.

Passive Solar Heating with Adjustable Heating Modes

This paper discusses different schemes of the performance of passive solar heating of buildings. Based on the solution for heat conduction equation for active building constructions taking into account the influence of convective heat transfer and heat flux, incoming solar radiation, the ways of energy-saving facilities’ operation is analyzed. It is shown that to increase the efficiency of such systems, an individual design should be performed taking into account the climatic features of the construction area, and the choice of rational combinatorics for the outer shell, such as movable shielding heat-protective device, and creating an air gap between the accumulating and heat-insulating layers. Based on the calculations, the energyactive area of the bearing course of buildings, protected from the outer side with the translucent barrier is revealed. The suitable thickness of the accumulation layer for recycling process of solar radiation is determined. The presented innovative technical solutions could help to enhance the efficiency of solar energy utilization and contribute to more active implementation of passive solar heating, expanding the scope of their territorial application

Economic and Legal Aspects of Environmental Safety

The paper is devoted to the economic and legal aspects of environmental safety in modern conditions. It is proved that there are the necessary initial data and rationalizing materials for the introduction in accordance with the established procedure of the normative indicators of the lower threshold of environmental safety. It has been established that in the economically developed countries considerable experience in recycling household waste has been accumulated. It is determined that there are all grounds to assert that, at the present level of development of science and technology, it is technologically possible to ensure environmental safety through the rational use of natural resources, the introduction of wasteless complexes, resource and energy-saving facilities. Practice has shown that in the legislation of the Russian Federation the issues of rational use of natural resources are poorly reflected. These issues were studied in detail in the governmental plans, which in the previous period had the status of laws.

충북지역 그린스쿨사업의 건축적 특성

Purpose: The purpose of this research is to bring qualitative improvement to future school facilities in Green School Project by analyzing architectural characteristics of 6 green schools in Chungbuk province. Method: This research conducted drawing analysis, site visit and user interviews for the 6 samples of Green School projects in Chungbuk province performed between 2009-2014. A post occupancy evaluation was given by means of questionnaire from facility managers, school faculty members, and students Result: Efforts to achieve eco-friendly school by planting, material change in paving and bike facility was well accepted but roof garden was ruled out at execution stage because of danger and maintenance issues. Eco-pond was welcomed by middle and high-schools but elementary schools are scared away. User satisfaction was high on Energy-saving facilities and was below average on maintenance of ‘Green School’. Needs of environmental education utilizing ‘Green School’, eco-friendly and energy saving facilities is sympathized, and there were some opinions to expand applicable items and to adapt a master plan for betterment of old schools.

에너지 절감형 장비 통합 관리 제어 네트워크

에너지 절감형 장비 통합 관리 제어 네트워크

탄소배출 최소화를 위한 스마트팜 시스템의 개발

2015년 1월에 체결된 파리기후협약은 기존의 교토의정서를 대체할 새로운 규약으로서 탄소배출을 최소화하기 위하여 새로운 변화를 요구하고 있다. 특히, 농업 부문은 국가 에너지 소비량의 1.8%에 불과하지만, 농산물 생산비에서 에너지가 차지하는 비중이 매우 높은 편이다. 이를 해결하기 위하여 에너지 절감 시설과 함께 화석 연료를 대체할 수 있는 신재생 에너지가 개발 및 보급되고 있으나, 이에 대한 보급률이 높지 않은 편이며, 외산 제품이 주를 이루고 있다. 이에 본 논문에서는 해외 제품이 대부분인 스마트 팜을 국내 환경에 적합한 환경 분석을 통하여 국내 환경에 적합하게 개발하고, 이 시설을 활용하는 경우 에너지 절감 효과를 보여줄 수 있는 실험을 실시하였다. Paris Agreement signed in January 2015 is a new rule that will replace the existing Kyoto Protocol. The new agreement needs new demands and challenges to minimize carbon emissions. Especially, even though agricultural sector occupies only 1.8% in the national energy consumption, the portion of the energy being occupied in agricultural production costs very high. Although renewable energy and energy-saving facilities is being developed and disseminated for replacing fossil fuel energy and saving energy, the installation-rate is not enough high. Thus, this paper developed Korean-style smart farm system, and carried out the experiment to show the performance of energy savings through analyzing proper environment in domestic situation.

The Case Study of Team-based Learning Methodology with Teachers of four Domains in the Senior High School

Chang Jung Christian University and National Hsin-Feng Senior High School cooperated in hosting a series of teacher training camps, teaching module design discussions relating to Team-Based Learning (TBL) and green geothermal energy in 2012. The teaching program began in September 2013, focusing TBL on “green energy”. Coupled with field visits, guest lecturers, and participation in competition, the teaching program aims to strengthen the learning effectiveness of students, and emphasize digital technology and hands-on module experience. Four cross-disciplinary senior high school teachers were invited to apply TBL methodology in innovative teaching and learning of geothermal energy. The teachers raises questions to trigger group discussion and in-class discussion on the principle and practice of energy use in daily life, as well as the establishment of energy-saving facilities. After self-learning, students then shared their learning experience with other students. Finally, the feedbacks and suggestions by the students and teachers on the TBL methodology are provided for a reference for TBL in the future.

시설원예 농가의 에너지 절감시설에 대한 만족도 분석: IPA방법을 이용하여

본 연구에서는 시설감귤농가와 시설포도 농가들을 대상으로 농업 에너지 절감시설과 신재생에너지원의 이용행태를 조사 분석하였다. 농가들의 에너지 이용행태를 조사한 결과, 농업 에너지 절감 시설과 신재생에너지의 이용 및 운영 관리 시스템은 여전히 미흡한 수준으로 나타났다. 시설감귤 농가와 시설포도 농가를 대상으로 실시한 IPA분석 결과에 따르면, 에너지 절감시설과 관련된 항목들에 대하여 전반적으로 중요도는 높았으나 수행도(만족도)는 크게 낮은 것으로 나타났다. 유류비 부담 등으로 인해 재배면적이 감소추세에 있는 시설감귤 농가의 경우 '관련 보조시설 확충 지원'이나 '기술개발', '저비용 대체에너지 보급문제'에 대해서는 중요하다고 판단되지만 실제 수행도는 매우 낮게 나타났다. 반면 재배면적이 증가하고 있는 시설포도농가의 경우 '에너지 절감시설에 대한 AS 용이성', '지역별 여건을 고려한 지원정책', '절감시설에 대한 기술개발'에 대해서 모두 우위를 나타냈다. 영농 광열비의 증가는 결국 농가경영에 부담을 증가시키고 대외 경쟁력을 떨어뜨리는 위험성을 갖고 있다. 현재 농가들이 사용하고 있는 등유는 열효율적인 면에서 손실이 많기 때문에 경유, 증유 등을 지속적으로 사용 할 수 있도록 기존 노후화 시설에 대한 개보수 지원과 함께 대체에너지의 보급 확대를 위한 방안이 마련되어야 한다. This paper analyzed the issues related to focus on farmers behaviors of energy saving facilities. This study conducted questionnaire and field surveys of controlled horticulture farmers and economic analysis using an IPA(Importance-Performance Analysis) matrix. According to the research results, the performance level was low on average ranging from 2.33 to 2.56 in a five point Likert-scale on greenhouse mandarin and grape-related facilities. On the other hand, the importance levels were high in the mean rating from 2.69 to 4.8. The results show that energy loss reduction of complementary facility and alternative energy supply support for low cost implementation are more important in terms of the respondents concerns than performance quadrant III. Therefore, it is important to provide financial support to energy-saving facilities to promote the use of energy efficiency improvement. In addition, the government should invest continuously in research and development.

Converted Heat Pumps for Small- and Medium-Size Hospitality Enterprises: More Energy Saving and Commercialization

Government officials have recently paid more attention to emissions produced by power plants and have called for more adoption of innovative energy-saving facilities. Among these energy-saving facilities, many scholars and governments have recommended using heat pumps. A heat pump is a kind of heat exchanging device capable of producing cooling and heating function or even hot water with energy-saving properties. Nevertheless, the principles and theories indicate that the heat pump functions should not be limited to a single functional mode at a time. It is possible to achieve bi-functional modes simultaneously via the heat recovery process. While some large heating, ventilation and air conditioning systems possess the dual functions simultaneously, this kind of bi-functional mode has not been available for the household size air-conditioner or heat pump. To prove this and check for its technical feasibility, a conversion of the existing household size air-conditioning system using the heat pump principle into the bi-functional mode was undertaken. Given over millions of small- and medium-size hospitality operators may benefit from it all over the world, a further investigation was undertaken in the second stage. Focus group interviews were conducted to identify the factors slowing and quickening the commercialization of the bi-functional mode type of the heat pump or air-conditioner with reference to network theory.

Research on Space Design in Daqing Commercial Street Based on Ecological and Livable City Construction

Requirements of Daqing ecological and livable city construction were analyzed. The problems of space design in Daqing commercial street including energy-saving, spatial scales, transportation planning, and environmental facilities were analyzed. Space design measures including humane care, high efficiency and low energy-saving, regional expression and diversity space are proposed.

공원이용자 의식조사를 통한 에너지 절약형 조경시설물 도입에 대한 연구 - 김포시 근린공원을 중심으로 -

This study aims to present the ground for the introduction of energy-saving landscape facilities which can meet the requirements of the age and create a new space by introducing the facilities which saves energy and that users prefer at the space where urbanites enjoy leisure activities in the urban parks. Thus, in addition to a spatial analysis of the parks for 10 urban parks in Gimpo, through an attitude survey on the users` behaviors, the following conclusions were drawn out. First, as a result of putting all facilities in the urban parks in Gimpo, on average, 6.9 out of the standards of 9 (76.6%) have been installed, and as a result of an analysis on the total number of the installed facilities, on average, about 28 kinds of facilities have been installed, so only 22.4% of the total 125 facilities were installed. Second, many urbanites are using the parks for the purpose of taking a walk and exercise to improve their health; however, the legal standards regulate only 2.9 exercise facilities on average in the target area, which are somewhat insufficient. Third, regarding the citizens` intent to participate in responding to climate change, 76% of them showed their intention of participation. Thus, if the energy-saving facilities, the purpose of this study, are introduced, many users will use them, and it is judged that costs for existing street lights and electric power plants will decrease. Fourth, as a result of an analysis of their satisfaction with the facilities, the value of R-square meaning the explanatory power of the independent variables put in a linear model for dependent variables was 0.860, approximately 81% of the total satisfaction, which was a high explanatory power. This study conducted an attitude survey on the users of urban parks in Gimpo at the dimensions of the introduction of energy-saving facilities in the urban parks, the national policies and responses to climate change. It is significant that it identified the appropriateness of developing much more energy-saving landscape facilities needed for low-carbon green growth in various types, and as a subsequent project, a more precision study on this is necessary continuously.

A QUESTIONNAIRE-TYPE SURVEY ON THE USER PREFERENCES FOR ENERGY-SAVING FACILITIES IN GREEN HOUSE

With the surge in environmental consciousness, the demand for energy-saving facilities in the residential sector is increasing. Thus, the role of green house with energy-saving facilities is becoming more important. However, energy-saving facilities have yet to become widely popular because of their high initial cost. To make them more popular, it is necessary to grasp quantitatively the public's preferences, in terms of energy-saving facilities, and their environmental consciousness including the effect of cost. In this study, the cost-payback-period of the energy-saving facilities which people find acceptable is analyzed using conjoint analysis and PRICE2 on the basis of a questionnaire-type survey.

The energy crises and Japanese response

Japan, who depends on foreign sources for nearly 80 percent of her energy needs, experienced the most serious recession and industrial adjustment processes of the post-war period when world oil prices suddenly soared in 1973 and 1979. Yet she has overcome the oil crises more successfully than any other industrialized nation. This paper examines her economic performance in the years following the first oil crisis and concludes that the important factors contributing to her success were not so much her energy-specific policies as her stringent monetary-fiscal policies, restrained unions' wage demands, industries' investments in energy-saving facilities and quality control techniques, and shift in production from energy-intensive to high-technology, knowledge-intensive products, along with the expansionary policies taken by the U.S. after the first oil crisis