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Article
Publication date: 9 January 2018

Jafar Razmi, Anis Hassani and Ashkan Hafezalkotob

Over the past two decades, in developed countries a trend towards the liberalization and restructuring of the gas market has been observed. Today, restructuring is an ongoing…

294

Abstract

Purpose

Over the past two decades, in developed countries a trend towards the liberalization and restructuring of the gas market has been observed. Today, restructuring is an ongoing process. In this study, a restructured natural gas market has been considered in which several regional distribution companies have ownership of the network and are competing against each other to gain more benefits. The main purpose of this study is to achieve efficiency and economic rationality in such a market through horizontal cooperation.

Design/methodology/approach

A restructured natural gas distribution network is modeled as a cooperative game to estimate the potential cost savings for various collaboration scenarios. In addition, the cost savings’ allocation among collaborating companies is evaluated using the cooperative game theory.

Findings

The results reveal validity and efficiency of the solution of the proposed model and capabilities of the cooperative game theory for reduction in gas distribution costs and improvement in the service level.

Research limitations/implications

This study is limited to natural gas in one region of Yazd City in Iran. Moreover, one segment of the natural gas network (i.e. distribution network) is modeled. Moreover, long-term cooperation between companies relies on fair distribution of cooperation benefits to the participants.

Practical implications

For the purpose of comparison and to get an insight into properties of the cost savings game, the real case study of one region of Yazd city in Iran is implemented.

Originality/value

This study contributes to the competitive models in the restructured gas market, particularly, in gas distribution network. The main contribution is to provide potential benefits for the participants via the horizontal cooperation.

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Article
Publication date: 24 May 2024

Susminingsih Susminingsih, Abdul Mujib, Anis Wahdati, Mochammad Achwan Baharuddin and Dian Sa'adillah Maylawati

This study aims to examine the factors that influence the increase in purchase intention toward green batik products with religiosity as an intervening variable.

321

Abstract

Purpose

This study aims to examine the factors that influence the increase in purchase intention toward green batik products with religiosity as an intervening variable.

Design/methodology/approach

The study used a survey method that involved a sample size of 185 participants selected through purposive and accidental sampling techniques. The analysis was conducted by using IBM SPSS AMOS 21 software. The collected data were subjected to path analysis using multiple linear regression models.

Findings

The result indicated that religiosity plays a mediating role in the association between factors and the intention to purchase green product (GPd) of the Indonesian natural dye batik product. This finding is in accordance with the construction of theory of planned behavior in understanding consumer purchase intentions. GPd, green brand and green price exhibited a positive correlation with green purchase intention (GPI). Interestingly, the price was found to no longer serve as the primary factor in GPI.

Research limitations/implications

The analysis would have been more compelling if it had used a mixed-method approach by introducing the variables of customer satisfaction and promotion.

Practical implications

This research postulates that increased prices are no longer a deterrent to the purchase of GPd. Instead, consumer consciousness regarding GPd plays a pivotal role in driving GPI. GPd have revolutionized individuals’ consumption patterns to contribute to environmental preservation. The use of green batik products is seen as advantageous in helping mitigate environmental degradation.

Originality/value

The present research assesses the impact of religiosity, as an intervening variable, on the augmentation of GPI by gauging its significance in enhancing ecological consciousness and moral values.

Details

Journal of Islamic Marketing, vol. 15 no. 12
Type: Research Article
ISSN: 1759-0833

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Book part
Publication date: 7 November 2022

Ahmad Albattat, Norhidayah Azman and Nur Hanifa Haji Zainul

The fastest growing industry in the world is in the hospitality field that focuses on customer satisfaction. Part of this is the food service industry that has been improving its…

Abstract

The fastest growing industry in the world is in the hospitality field that focuses on customer satisfaction. Part of this is the food service industry that has been improving its existence for the past years. In the hospitality industry, there are various kinds of businesses and one of them is street cuisine, which is not properly sanitised yet affordable and delicious. The researchers used various approaches to understand the tourists' perception on street cuisine, which are descriptive and quantitative. This research was conducted with millennial visitors in George Town Street, Penang, by using a survey questionnaire. Based on the results, the researchers found out that there are some differences in the perception on street cuisine stalls based on their demographic profile. This study confirmed that street cuisine in George Town Street, Penang, is recognised with its level of hygiene in preparation and with high consideration for its cleanness. In addition, this study also shows that street cuisine in the post-COVID-19 period in George Town Street, Penang, is recognised to have a high commercial value; therefore, more efforts must be engaged to boost its competitiveness in the market. Therefore, there is a need of full support from the Malaysian government, local authorities and local people in maintaining its quality and the preferences of George Town street in Penang as a tourism destination that provides heavenly street cuisine to all tourists in the world.

Details

The Emerald Handbook of Destination Recovery in Tourism and Hospitality
Type: Book
ISBN: 978-1-80262-073-3

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Article
Publication date: 15 May 2023

Hisham Ali Yousef, ElHassan Anas ElSabry and Alaa Eldin Adris

Petroleum companies have various goals in light of high energy prices, uncertainty and potential fluctuations in demand in the current digital age, including making a profit while…

479

Abstract

Purpose

Petroleum companies have various goals in light of high energy prices, uncertainty and potential fluctuations in demand in the current digital age, including making a profit while maintaining long-term sustainability and lowering their environmental impacts. The purpose of this paper is to explore the impact of technology management (TM) and its practices through process and maintenance technologies on sustainability performance (SP) for petroleum refineries and petrochemical companies in terms of economic, environmental and social sustainability.

Design/methodology/approach

A new proposed framework has been developed for a clearer understanding in relation to these aspects. The study was conducted among Egyptian refineries and petrochemical companies. A structured questionnaire was used to collect data from 65 petroleum experts and professionals, which was then summarized using statistical analysis, hypothesis testing and regression analysis.

Findings

The findings demonstrate that TM has a significant and direct impact on SP. Furthermore, the study shows that process technology (PT) has a positive influence on the three aspects of SP. Although maintenance technology has a positive impact on economic and environmental sustainability, it shows no direct effect on social sustainability.

Research limitations/implications

The degree to which TM and sustainability principles are implemented across petroleum companies in various countries varies significantly because of managerial and cultural dimensions. Therefore, when conducting the research, it is important to consider the study’s geographical area to comprehend how these practices are impacted by the distinctive managerial and cultural settings of each country. Also, respondents in developing countries do not participate in such surveys with much enthusiasm.

Practical implications

The study shows that implementing TM practices generates more economic stability and ensures environmental and social sustainability. The research studied how PT and maintenance practices affected each aspect of sustainability. These findings can apply to all downstream oil companies, regardless of their size or type of operations. Further research can be conducted to examine the relationship between variables in other industries.

Social implications

Decision-makers and managers may use the study's findings to improve their companies' performance and develop new plans and policies. The results demonstrate that companies will have a greater chance of achieving sustainable performance if they incorporate process and maintenance technologies into their activities. Besides economic and environmental sustainability, petroleum companies must strive for social sustainability.

Originality/value

The study is regarded as a significant contribution to the management of petroleum refineries and petrochemical companies, as it combined TM practices with SP in a single research framework. Industry executives and researchers can use this research as a guide that can be applied to all petroleum companies in the same country.

Details

International Journal of Energy Sector Management, vol. 18 no. 3
Type: Research Article
ISSN: 1750-6220

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Article
Publication date: 9 April 2019

Rehena Nasrin, Md. Hasanuzzaman and N.A. Rahim

Effective cooling is one of the challenges for photovoltaic thermal (PVT) systems to maintain the PV operating temperature. One of the best ways to enhance rate of heat transfer…

537

Abstract

Purpose

Effective cooling is one of the challenges for photovoltaic thermal (PVT) systems to maintain the PV operating temperature. One of the best ways to enhance rate of heat transfer of the PVT system is using advanced working fluids such as nanofluids. The purpose of this research is to develop a numerical model for designing different form of thermal collector systems with different materials. It is concluded that PVT system operated by nanofluid is more effective than water-based PVT system.

Design/methodology/approach

In this research, a three-dimensional numerical model of PVT with new baffle-based thermal collector system has been developed and solved using finite element method-based COMSOL Multyphysics software. Water-based different nanofluids (Ag, Cu, Al, etc.), various solid volume fractions up to 3 per cent and variation of inlet temperature (20-40°C) have been applied to obtain high thermal efficiency of this system.

Findings

The numerical results show that increasing solid volume fraction increases the thermal performance of PVT system operated by nanofluids, and optimum solid concentration is 2 per cent. The thermal efficiency is enhanced approximately by 7.49, 7.08 and 4.97 per cent for PVT system operated by water/Ag, water/Cu and water/Al nanofluids, respectively, compared to water. The extracted thermal energy from the PVT system decreases by 53.13, 52.69, 42.37 and 38.99 W for water, water/Al, water/Cu and water/Ag nanofluids, respectively, due to each 1°C increase in inlet temperature. The heat transfer rate from heat exchanger to cooling fluid enhances by about 18.43, 27.45 and 31.37 per cent for the PVT system operated by water/Al, water/Cu, water/Ag, respectively, compared to water.

Originality/value

This study is original and is not being considered for publication elsewhere. This is also not currently under review with any other journal.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 29 no. 6
Type: Research Article
ISSN: 0961-5539

Keywords

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