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Human Rights Due Diligence: Roles And Contributions Of Sustainability Professional In Thailand, Pimpilai Rumthum
Human Rights Due Diligence: Roles And Contributions Of Sustainability Professional In Thailand, Pimpilai Rumthum
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study examines the role of sustainability professionals in driving Human Rights Due Diligence (HRDD) within organizations and provides valuable insights into their responsibilities, competencies, and impact. As there was no study done to understand this particular career that tends to be trendy for sustainability businesses to achieve their goals beyond financial efficiency. The study examines the tasks, competencies, and impact of sustainability professionals from different viewpoints of related stakeholders. Using primary data gathered through semi-structured interviews, the research investigates the question that sustainability professionals positively contribute to HRDD processes. Through 9 interviews with key informants from diverse backgrounds, including …
Study On Nepalese Migrant Remittances: Usage, Gender Perspective And Remittance Methods, Tsering Diki Sherpa
Study On Nepalese Migrant Remittances: Usage, Gender Perspective And Remittance Methods, Tsering Diki Sherpa
Chulalongkorn University Theses and Dissertations (Chula ETD)
The study aims to shed light on remittance usage types and methods of remittance transfer to Nepalese migrant households. To achieve this, data from the Nepal Living Standards Survey III (NLSS III) was utilized, which comprises a sample size of 5,988 households selected from 499 primary sampling units (PSUs) included in the cross-sectional sample of the NLSS III survey. By analyzing and interpreting this data, the study investigates the allocation and utilization patterns of remittance funds by recipient households. It looks into their expense patterns, occupation types, destination countries, and how gender plays an active role in these dynamics. This …
Research On The Economic And Trade Relations Between China And Asean Rcep, Meng Li
Research On The Economic And Trade Relations Between China And Asean Rcep, Meng Li
Chulalongkorn University Theses and Dissertations (Chula ETD)
The trade cooperation between China and ASEAN has endured for nearly three decades, coinciding with a period of rapid global economic development and significant transformations among nations. Despite encountering numerous challenges, the collaboration between China and ASEAN has remained unwavering, leading to remarkable growth in both economies. Meanwhile,the Regional Comprehensive Economic Partnership(RCEP) signed by China and ASEAN can also more effectively promote bilateral economic and trade cooperation. However, with the changes in the international geopolitical situation, the acceleration of the reconstruction of the global value chain, and the intensification of the strategic game between major powers, there are more uncertainties …
Chinese Cultural Symbols In Thailand : A Study Of Mazu Belief In The Chinese Community In Bangkok Chinatown, Tongtong Xu
Chinese Cultural Symbols In Thailand : A Study Of Mazu Belief In The Chinese Community In Bangkok Chinatown, Tongtong Xu
Chulalongkorn University Theses and Dissertations (Chula ETD)
The overseas Chinese living around the world constitute a unique and far-reaching social group in the development of modern human history. While seeking survival and development in foreign lands, they also spread Chinese culture to the world, creatively integrating Chinese culture, territorial culture, and other cultures, forming a distinctive culture of overseas Chinese. Due to the historical environment, geographical conditions, and background factors of transportation, Southeast Asia now has the largest number of overseas Chinese in the world. Among them, overseas Chinese living in Thailand have long been integrated into the mainstream of their economy, politics, and culture. Many Chinese …
The Asean Way : A Study Of Its Evolution And Contemporary Relevance, Yanmei Zhou
The Asean Way : A Study Of Its Evolution And Contemporary Relevance, Yanmei Zhou
Chulalongkorn University Theses and Dissertations (Chula ETD)
The "ASEAN way" does not have a unified definition; it can be seen as a series of codes of conduct formulated by ASEAN to adjust intra-regional conflicts and cooperation. The "ASEAN way" takes the principle of non-interference as its core, and as a process it is based on consultation and consensus. Its main features are informality, weak institutionalization and non-confrontation. This paper attempts to use a long-term historical perspective to study the development and changes of the"ASEAN Way". Through a general review of the history of ASEAN, the paper identifies some typical cases that are more relevant to the "ASEAN …
Examining The New Asean Regional Order Shaped By Us-Chinese Strategic Competition-Through The Lens Of Health Security, Yichao Yang
Examining The New Asean Regional Order Shaped By Us-Chinese Strategic Competition-Through The Lens Of Health Security, Yichao Yang
Chulalongkorn University Theses and Dissertations (Chula ETD)
The strategic competition between China and the United States in the 21st century has changed the regional order in Asia, and the Association of Southeast Asian Nations (ASEAN), as an important region in Asia, has also been affected. Since the end of the Cold War, global politics has begun to consider non-traditional security, including security issues related to the environment, public health, and culture. To understand how US-China competition affects ASEAN, this article will focus on public health security, especially during the COVID-19 pandemic. This paper analyzes some ways in which China and the United States cooperate and confront the …
Study On China-Myanmar Relations After The Myanmar’S Democratic Transformation, Yingting Guo
Study On China-Myanmar Relations After The Myanmar’S Democratic Transformation, Yingting Guo
Chulalongkorn University Theses and Dissertations (Chula ETD)
Myanmar has a special geographical location, connecting East Asia, Southeast Asia and South Asia. It is located at the intersection of China, India and ASEAN,facing the Andaman Sea (Indian Ocean) in the west and the South China Sea (Pacific Ocean) in the east, which has significant geostrategic significance. For China,Myanmar is an vital part of its neighborhood diplomacy and an essential country along the Belt and Road Initiative. Therefore, in the context of Myanmar's"democratic" reform, it is of great significance to analyze Myanmar's policy towards China and the test of changes and unchanging relations between China and Myanmar. Since the …
China's Influence On Laos' Infrastructure Investment And Lao People's Views On It - The Case Study Of China-Laos Railway, Ziying Cheng
China's Influence On Laos' Infrastructure Investment And Lao People's Views On It - The Case Study Of China-Laos Railway, Ziying Cheng
Chulalongkorn University Theses and Dissertations (Chula ETD)
This paper addresses the following question: "Given that China's economic contribution to the China-Laos Railway project is greater than Laos', will China have greater influence in the project than Laos?" In recent years, China and Laos have developed increasingly close relations. In addition, the China-Laos railway has been completed by the end of 2021 as a result of China's continued implementation of its "One Belt, One Road" policy. In the first section of the article, this context is described in detail. Laos has always been the only landlocked nation on the Indo-China Peninsula, and the construction of railways within its …
Thailand Generation Z Consumers’ Brand Perception Of Bonchon Restaurantin Thailand, Aditep Jirattikorn
Thailand Generation Z Consumers’ Brand Perception Of Bonchon Restaurantin Thailand, Aditep Jirattikorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
The present study is dedicated to investigating the Thailand generation z consumer’s brand perception of the brand Bonchon. This study aims to learn how generation z in Thailand perceives all aspects of the brand Bonchon in addition, this study also aims to cover whether Korean pop culture has an effect on how the consumer perceives the brand. Generation z participants in Thailand (n=227) who is a customer of Bonchon were asked to complete the questionnaire. The questionnaire is designed to discover respondents' cognitive, emotional, language, and actions toward the brand Bonchon. The research adopted certain theories on branding and consumer …
Perception Of Women Entrepreneurs On Social Media Use For Marketing Communication In Qatar, Aisha Ali A.T.Al-Khulaifi
Perception Of Women Entrepreneurs On Social Media Use For Marketing Communication In Qatar, Aisha Ali A.T.Al-Khulaifi
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research aimed to understand the social media use of women entrepreneurs for marketing communication in Qatar. It is based on a qualitative approach, using an in-depth, semistructured interview. Participants were ten women entrepreneurs who have been running their businesses for at least six years, aged between 25 and 45. This research employed a question guideline as the research instrument based on five questions such as reasons for using social media for marketing, usage of social media for marketing, benefits, challenges, and professional benefits. The findings showed that the reasons for social media usage focus on ease of access and …
The Influence Of Perceived Risk And Perceived Value On Consumer Adoption Of Cryptocurrency, Athit Rodpangtiam
The Influence Of Perceived Risk And Perceived Value On Consumer Adoption Of Cryptocurrency, Athit Rodpangtiam
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purpose of this research is to study the perceptions of risk and value of cryptocurrency adopters from the social media platform Reddit by assessing the influence of Perceived Risk (PR) and Perceived Value (PV) on their intention to adopt cryptocurrency. Demographic factors of (Gender, Age, Education Level, Income, Investment Experience) were analyzed as control variables. The study within this paper was conducted with a quantitative approach through the utilization of a survey technique. Data was gathered through purposive sampling, and 200 respondents from the Cryptocurrency News & Discussion subreddit were studied among a sample of 1444 respondents. The data …
East Asian Tourists’ Exposure To Social Media Advertising, Attitude, And Their Purchasing Behavior With Hotels In Bangkok, Chaitach Sirisachdecha
East Asian Tourists’ Exposure To Social Media Advertising, Attitude, And Their Purchasing Behavior With Hotels In Bangkok, Chaitach Sirisachdecha
Chulalongkorn University Theses and Dissertations (Chula ETD)
The ultimate goal of this research was to study the correlations between East Asian tourists' exposure to social media advertisements by hotels in Bangkok, their attitude toward the advertisements, and their purchasing behavior. The primary reason for conducting this study is the COVID-19 pandemic's effect on the hospitality industry within Bangkok and the expectation of an increase in the tourist population visiting Bangkok at the end of 2022 and the beginning of 2023. East Asian tourists were targeted for this study because they have historically been the demographic that had most visited Thailand. Two hundred respondents were requested to complete …
The Hong Kong Consumers' Perceptions Of Boys' Love Dramas And Their Attitudes Toward Thailand And The Gay Community, Chung Yan Chan
The Hong Kong Consumers' Perceptions Of Boys' Love Dramas And Their Attitudes Toward Thailand And The Gay Community, Chung Yan Chan
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research aimed to explore Hong Kong consumers' perceptions and attitudes toward Thai Boys' Love (BL) dramas, Thailand, and the gay community. To conduct the research, a qualitative approach is used with the instrument of in-depth interviews. A total of twelve Hong Kong consumers participated in this study. They are aged between 18-30 years old. The results depicted that Over-the-top (OTT) streaming platforms and reference groups contributed to the distribution and exposure of Thai BL dramas in the Hong Kong market. Aesthetic elements, actors, storyline, and Thailand culture are the elements that attract participants to watch Thai BL dramas continually. …
Consumers’ Perception And Loyalty Toward The Rebranding Of Double Goose Brand, Chutikarn Benjamapokai
Consumers’ Perception And Loyalty Toward The Rebranding Of Double Goose Brand, Chutikarn Benjamapokai
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this study was to explore consumers’ perceptions and loyalty toward the rebranding of Double Goose brand. This study employs qualitative research methods conducted via online application. With the selection criteria for data diversity, an in-depth interview was used to collect data from eight participants. The research participants are consumers of the Double Goose brand, aged between 20 - 40 years and divided into two groups. The first group is a loyal customers group that loyal to the goose brand and the second group is the new user group of the goose brand. This study uses the conceptual …
Millennial Consumers' Behavior On Purchasing Amulet Jewelry, Nuanhatai Tantayotai
Millennial Consumers' Behavior On Purchasing Amulet Jewelry, Nuanhatai Tantayotai
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this research is to study millennial consumers’ behavior on purchasing amulet jewelry. Qualitative method was used to collect data from 15 Thai Generation Y females, aged between 25 and 34 years old, living in Bangkok, Thailand, and purchased amulet jewelry at least once within the year 2022. The findings indicate that millennial consumers spend over eight hours per day on social media. They prefer online marketing communication content that is short, precise, and easy to understand. In term of beliefs, consumers believe that wearing amulet jewelry can make them confident, enhance their prosperity and fortune, help businesses …
Credibility Of Travel Influencer On Millennial Traveling Behavior, Papitchayapa Boonsub
Credibility Of Travel Influencer On Millennial Traveling Behavior, Papitchayapa Boonsub
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this study was to understand the credibility of travel influencers among millennial travelers and how they motivate millennial travelers' travel behavior. It is based on a qualitative methodology that involves use of in-depth interviews. Twelve millennial travelers both domestic and international between the ages of 25 and 40 were interviewed. They had to organize the trip within a year and follow to travel influencers. This study employed a question guideline as the research instrument based on four dimension which are demographics and media usages, attitude towards travel influences, source of credibility, and travel behavior. The findings revealed …
The Influence Of Perceived Value, User Engagement, And Emotions On Usage Intention Of Thai Tiktok Users, Phakkhaporn Dancharoenpol
The Influence Of Perceived Value, User Engagement, And Emotions On Usage Intention Of Thai Tiktok Users, Phakkhaporn Dancharoenpol
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this research were to explore perceived value, user engagement, emotions, and usage intention of Thai TikTok users, as well as to investigate the influence of perceived value, user engagement, and emotions on TikTok usage intention. An online survey was employed to collect data from 289 participants who were TikTok users, aged between 18-38 years old. The findings showed that the respondents had high perceived value (M = 4.01), high engagement (M = 3.78), emotions (M = 3.75), and high usage intention (M = 3.97) towards TikTok. Furthermore, the results of the multiple regression analysis depicted that perceived …
The Disability Rights Movements In The Eu And Europe, Theerawut Rirattanapong
The Disability Rights Movements In The Eu And Europe, Theerawut Rirattanapong
Chulalongkorn University Theses and Dissertations (Chula ETD)
The study of the social movement, specifically on the marginalized or minority group is an important tool to gain insight into the social and cultural evolution of any given society or culture. A study on the disability rights movement is a growing field in social science, especially in the backdrop of the ever-growing awareness of social and cultural change of the 21st Century. Generally speaking, there are a wide gap in the prior research as it failed in one way or the another, ranging from inability to account for the multifaceted nature of disability, overemphasis on a specific aspect at …
Generation Z Consumers’ Behavior On Jones’ Salad’S Online Marketing Communications, Pitchaya Watcharodomprasert
Generation Z Consumers’ Behavior On Jones’ Salad’S Online Marketing Communications, Pitchaya Watcharodomprasert
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this research was to study consumer behavior on Jones’ Salad’s online marketing communications. Two hundred and thirty-eight people who are current customers purchasing Jones’ Salad once a month, exposed to the brand’s online marketing communications in the past three months, and aged between 18 and 25 years old residing in Thailand, were asked to complete online questionnaire survey. The findings in the cognitive part reveal that Jones’ Salad’s online platforms, especially Facebook and Instagram, are significant communication platforms among its Generation Z’s customers. The majority of the samples rely on Jones’ Salad online media for brand information. …
The Relationship Between Source Credibility, Advertising Recognition, And Purchase Intention On Snack Products, Pornsit Cheawkamolpat
The Relationship Between Source Credibility, Advertising Recognition, And Purchase Intention On Snack Products, Pornsit Cheawkamolpat
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this research were to study source credibility, advertising recognition, and purchase intention on snack products and was explore the relationship between source credibility, advertising recognition, and purchase intention oMaster of Arts (Communication Arts)n snack products. This research employed online survey and used online questionnaire to collect data through 208 respondents, who were Thai, aged between 18-38 years old, and must follow Kin Nhom page for the past three months. The results depicted that the respondents highly perceived that Kin Nhom page was credible (M = 4.14). Moreover, the respondents acknowledged that contents from Kin Nhom page were …
The Chinese Media Narrative Of Thailand As A Tourist Destination After The Legalization Of Cannabis (For Medical Purposes Or Health Concerns), Shuang Deng
Chulalongkorn University Theses and Dissertations (Chula ETD)
Thailand, a world-renowned tourist destination, officially decriminalized cannabis (for medical purposes or health concerns) in June 2022. This policy has aroused widespread international attention and discussion. This study aims to analyze Chinese media narratives on the legalization of cannabis in Thailand and Chinese netizens' attitudes toward this policy. The research uses content analysis to analyze posts of 4 Chinese social media accounts related to Thailand (3 Mainland China, and 1 Thai-Taiwan). Posts about Thailand’s legalization of cannabis on Chinese social media Weibo from Jan 2022 - Oct 2022 are collected. Chinese media mostly adopted a neutral attitude when narrating the …
The Personal Branding On Social Media Of Tilly Birds, Joshuachidchanok Podlas
The Personal Branding On Social Media Of Tilly Birds, Joshuachidchanok Podlas
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this study was to examine Tilly Birds’ personal branding via their official social media platforms, and to study the personal branding construction strategy of Tilly Birds A mixed method was used to carry out this research. A content analysis as well as an in-depth interview. The first method involved the researcher doing content analysis on Tilly Birds' primary social media platforms: Twitter, Facebook, and Instagram. The researcher examined all of the posts from July to September. Following the content analysis, an in-depth interview was done to acquire a better understanding of the personal branding produced for Tilly …
Consumers’ Attitudes Towards Human And Ai Customer Service By Booking.Com, Warit Chiang
Consumers’ Attitudes Towards Human And Ai Customer Service By Booking.Com, Warit Chiang
Chulalongkorn University Theses and Dissertations (Chula ETD)
First and foremost, I would like to thank my advisor, Dr. Teerada Chongkolrattanaporn, Assistant Professor. Thank you for your steady guidance, patience, encouragement, and support. I've felt confident and at ease throughout the entire process thanks to your guidance. This professional project could not have been completed without your assistance. Thank you for reading my revisions at such late hours and providing me with timely, constructive feedback. I feel truly blessed and honored to have been your advisee; may this work bear witness to your exceptional counsel. My heartfelt appreciation goes to all committee members, especially Associate Professor Dr. Smith …
The Motivation Of Chinese Retirees Moving To Thailand, Li Jiaqi
The Motivation Of Chinese Retirees Moving To Thailand, Li Jiaqi
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aims to investigate the motivation of Chinese retirees who choose to reside in Thailand and to explore the living arrangements of this group. The study employed an integrative review to collect data from relevant research related to Chinese retirees abroad, Chinese online social media, and semi-structured interviews. The respondents included 10 individuals from Chinese social media and 4 retirees who were purposively interviewed. The content analysis technique was used for data analysis. The result of this study found that the motivation of Chinese retirees aligns with Maslow's hierarchy of needs theory, particularly in fulfilling their basic needs. Factors …
Brand Image Of Nike Products Among Consumer Generation Z In Thailand, Zhefu Murong
Brand Image Of Nike Products Among Consumer Generation Z In Thailand, Zhefu Murong
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this research was to study the brand image of Nike products among consumer generation Z in Thailand. Based on the quantitative research approach, two hundred of Nike's current consumers aged between 18 to 25 years old in Thailand, who had purchased/owned Nike’s products before, were asked to complete an online questionnaire to study the brand image. The research findings illustrated that most of Nike's generation Z consumers considered Nike to own a positive brand image. The result of the study in each brand image factor shows that most of the respondents have positive attitude toward Nike whether …
The Images Of Thailand In Thai Television Dramas And Their Impacts On Vietnamese Audiences, Nguyen Thi Ngoc Thoa
The Images Of Thailand In Thai Television Dramas And Their Impacts On Vietnamese Audiences, Nguyen Thi Ngoc Thoa
Chulalongkorn University Theses and Dissertations (Chula ETD)
The study aims to explore the function of good images of Thailand represented through Thai television dramas, and their impacts on Vietnamese audiences. An analysis of the two series “I Told Sunset About You” and “A Tale of Thousand Starts” and a field research reveal that Thailand portrayed in the series is the country possessing a diversity of natural resources and cultures with hospitable and friendly people. Remarkably, in the series audiences can see a society where gender diversity is accepted and respected in a proper way. Positive images of Thailand as represented via the series inspire Vietnamese audiences to …
Influencers And Hashtags: Thai Youth Identities In Social Media, Nicodemus Ler Wei Ming
Influencers And Hashtags: Thai Youth Identities In Social Media, Nicodemus Ler Wei Ming
Chulalongkorn University Theses and Dissertations (Chula ETD)
This paper examines how the identities of the Thai youths today are reflected and manifested in their online activities and through influencers, and what impact will it have on the Thai society going forward in the future. It analyses the social media content that are primarily drawn from Danupha “Milli” Khanatheerakul and Parit “Penguin” Chiwarak’s Twitter and Facebook account. This paper aims to show how the Thai youth’s identities are expressed through their interaction with the influencer’s post. This paper asks: What are the key issues that are of concern to influencers? How did the Thai youths react to them? …
The Representation Of Muay Thai In Prachya Pinkaew's Tom Yum Goong (2005), Qian Wang
The Representation Of Muay Thai In Prachya Pinkaew's Tom Yum Goong (2005), Qian Wang
Chulalongkorn University Theses and Dissertations (Chula ETD)
Through a textual analysis of the popular Thai film Tom Yum Goong (2005), this paper explores how the director, Prachya Pinkaew, expresses his own nationalistic and localistic argument by creating a myth of a hero that uses Muay Thai to defeat the villains in order to save his elephant, which symbolizes (as the allegory of) Thailand. Considering the historical context of this film where a strong sense of modern nationalism was prevailing in the Thai society; it is reasonable to further infer that Muay Thai in this film represents the Thai intellect, the film title Tom Yum Goong refers to …
การวิเคราะห์การใช้พลังงานของการตัดแผ่นหินอ่อนและหินแกรนิต : กรณีศึกษา, ทิชากร โพธิ์นรินทร์
การวิเคราะห์การใช้พลังงานของการตัดแผ่นหินอ่อนและหินแกรนิต : กรณีศึกษา, ทิชากร โพธิ์นรินทร์
Chulalongkorn University Theses and Dissertations (Chula ETD)
หินอ่อนและหินแกรนิต เป็นวัสดุที่ได้รับความนิยมอย่างมากในกลุ่มวัสดุก่อสร้าง เพราะมีความสวยงาม คงทนและสะดวกต่อการดูแลรักษา ซึ่งการจะได้มาซึ่งแผ่นหินที่ใช้ตกแต่งได้นั้น จะต้องนำแผ่นหินขนาดใหญ่ (Slabs) มาตัดตามขนาดที่ต้องการเสียก่อน เนื่องจากหินทั้งสองชนิดมีความแข็งที่แตกต่างกัน ทำให้ต้องใช้ความเร็วในการตัด ความเร็วรอบของใบเลื่อย รวมทั้งขนาดของใบเลื่อยที่ต่างกัน สำหรับโรงงานที่ใช้ศึกษาในครั้งนี้ การตัดหินแต่ละชนิดจะใช้พารามิเตอร์ต่างกัน สำหรับหินอ่อน จะใช้ความเร็วรอบของใบเลื่อยอยู่ที่ 2,700 rpm ความเร็วในการตัดอยู่ที่ 1, 2 และ 3 เมตรต่อนาที ใบเลื่อยที่ใช้ตัดจะอยู่ที่ 12 นิ้ว และใช้หินอ่อน Rosso Levanto ในการทดสอบ สำหรับหินแกรนิต ใช้รอบการหมุนของใบเลื่อยอยู่ที่ 1,700 rpm ความเร็วในการตัดอยู่ที่ 1, 2 และ 2.5 เมตรต่อนาที และใช้หินแกรนิตดำอินเดียในการทดสอบ จากการทดลองวัดกระแสไฟฟ้าขณะตัดแผ่นหินเพื่อนำมาคำนวณหาค่ากำลังไฟฟ้า พบว่าใช้กำลังไฟฟ้าขณะที่ตัดอยู่ที่ 21.13, 21.34 และ 24.36 กิโลวัตต์ (kW) ตามลำดับความเร็วที่ใช้ตัด และสามารถคำนวณหน่วยไฟฟ้าที่ใช้ต่อการตัดแผ่นหินอ่อน 1 สแลบ อยู่ที่ 8.25, 4.19 และ 3.30 หน่วย ตามลำดับ และเมื่อทดสอบกับหินแกรนิตดำอินเดีย พบว่าใช้กำลังไฟฟ้าขณะที่ตัด อยู่ที่ 19.48, 20.29 และ 20.95 กิโลวัตต์ (kW) และหน่วยไฟฟ้าที่ใช้ต่อการตัดแผ่นหินแกรนิต 1 สแลบ อยู่ที่ 7.50, 3.95 และ 3.32 ตามลำดับ เมื่อนำค่าไฟฟ้าเฉลี่ยของโรงงานมาคำนวณคาดการณ์ในการตัดแผ่นหินใน 1 ปี พบว่า หากตัดแผ่นหินอ่อนด้วยความเร็ว 3 เมตรต่อนาที จะประหยัดค่าใช้จ่ายมากกว่าการตัดด้วยความเร็ว 1 เมตรต่อนาที ถึง 65,488.74 บาท หรือประมาณ 60.01% และหากตัดแผ่นหินแกรนิตด้วยความเร็ว 2.5 เมตรต่อนาที สามารถประหยัดค่าใช้จ่ายได้มากกว่าการตัดด้วยความเร็ว 1 เมตรต่อนาที …
การผลิตน้ำร้อนด้วยแผงโซล่าฮีทไปป์ร่วมกับฮีทปั๊ม, ปิยะ ณ ลำพูน
การผลิตน้ำร้อนด้วยแผงโซล่าฮีทไปป์ร่วมกับฮีทปั๊ม, ปิยะ ณ ลำพูน
Chulalongkorn University Theses and Dissertations (Chula ETD)
อาคารโรงแรมในประเทศไทยส่วนใหญ่นิยมผลิตน้ำร้อนโดยใช้ระบบฮีทปั๊มเนื่องจากเป็นระบบที่มีประสิทธิภาพสูงและใช้พลังงานต่ำส่งผลให้การลดพลังงานในส่วนนี้ทำได้ยาก การเพิ่มอุณหภูมิน้ำก่อนเติมเข้าระบบของฮีทปั๊มโดยฮีทไปป์จึงเป็นที่มาของงานวิจัยครั้งนี้ งานวิจัยนี้ได้ทำการศึกษาการผลิตน้ำร้อนร่วมกับฮีทปั๊มเฉพาะชั้นHigh zoneจากชั้นที่ 30 ถึง ชั้นที่ 34 เท่านั้น โดยมีปริมาณการใช้น้ำร้อนเฉลี่ยเท่ากับ 2,000 ลิตรต่อวัน ในงานวิจัยใช้แผงโซล่าฮีทไปป์ซึ่งมีพื้นที่รับแสง = 1.89 m2/แผง จำนวนทั้งหมด 8 แผง ฮีทไปป์ผลิตน้ำร้อนเฉลี่ย10 ชั่วโมงต่อวัน เริ่มตั้งแต่ 7.00 น. -17.00 น. ในช่วงเวลากลางวัน น้ำร้อนได้ถูกนำไปเก็บไว้ในถังเก็บน้ำร้อนขนาด 2000 ลิตร และในช่วงเวลากลางคืนได้นำน้ำร้อนไปป้อนให้กับระบบฮีทปั๊ม ผลการวิจัยพบว่า น้ำร้อนที่ผลิตได้มีพลังงาน 18,554 kWhต่อปี และเมื่อนำน้ำร้อนไปใช้เป็นน้ำเติมในระบบฮีทปั๊มจะช่วยประหยัดพลังงานไฟฟ้าที่ป้อนให้กับฮีทปั๊ม ได้ 5,256kWh คิดเป็นค่าใช้จ่ายที่ประหยัดได้ 19,764 บาทต่อปี และเมื่อให้อายุการใช้งานของระบบทำน้ำร้อนเป็น 20 ปี จึงได้ประเมินโครงการด้านการเงินได้มูลค่าปัจจุบันสุทธิ (NPV) อัตราผลตอบแทนภายใน (IRR) ระยะคืนทุน(PB) เท่ากับ 242,968 บาท 7.61% และ13 ปีตามลำดับ จึงสามารถสรุปได้ว่ามีความคุ้มค่าในการลงทุน.