Matching Items (36)
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- All Subjects: engineering
- Creators: Phelan, Patrick
Description
In this thesis the performance of a Hybrid AC System (HACS) is modeled and optimized. The HACS utilizes solar photovoltaic (PV) panels to help reduce the demand from the utility during peak hours. The system also includes an ice Thermal Energy Storage (TES) tank to accumulate cooling energy during off-peak hours. The AC runs continuously on grid power during off-peak hours to generate cooling for the house and to store thermal energy in the TES. During peak hours, the AC runs on the power supplied from the PV, and cools the house along with the energy stored in the TES. A higher initial cost is expected due to the additional components of the HACS (PV and TES), but a lower operational cost due to higher energy efficiency, energy storage and renewable energy utilization. A house cooled by the HACS will require a smaller size AC unit (about 48% less in the rated capacity), compared to a conventional AC system. To compare the cost effectiveness of the HACS with a regular AC system, time-of-use (TOU) utility rates are considered, as well as the cost of the system components and the annual maintenance. The model shows that the HACS pays back its initial cost of $28k in about 6 years with an 8% APR, and saves about $45k in total cost when compared to a regular AC system that cools the same house for the same period of 6 years.
ContributorsJubran, Sadiq (Author) / Phelan, Patrick (Thesis advisor) / Calhoun, Ronald (Committee member) / Trimble, Steve (Committee member) / Arizona State University (Publisher)
Created2011
Description
As the demand for power increases in populated areas, so will the demand for water. Current power plant technology relies heavily on the Rankine cycle in coal, nuclear and solar thermal power systems which ultimately use condensers to cool the steam in the system. In dry climates, the amount of water to cool off the condenser can be extremely large. Current wet cooling technologies such as cooling towers lose water from evaporation. One alternative to prevent this would be to implement a radiative cooling system. More specifically, a system that utilizes the volumetric radiation emission from water to the night sky could be implemented. This thesis analyzes the validity of a radiative cooling system that uses direct radiant emission to cool water. A brief study on potential infrared transparent cover materials such as polyethylene (PE) and polyvinyl carbonate (PVC) was performed. Also, two different experiments to determine the cooling power from radiation were developed and run. The results showed a minimum cooling power of 33.7 W/m2 for a vacuum insulated glass system and 37.57 W/m2 for a tray system with a maximum of 98.61 Wm-2 at a point when conduction and convection heat fluxes were considered to be zero. The results also showed that PE proved to be the best cover material. The minimum numerical results compared well with other studies performed in the field using similar techniques and materials. The results show that a radiative cooling system for a power plant could be feasible given that the cover material selection is narrowed down, an ample amount of land is available and an economic analysis is performed proving it to be cost competitive with conventional systems.
ContributorsOvermann, William (Author) / Phelan, Patrick (Thesis advisor) / Trimble, Steve (Committee member) / Taylor, Robert (Committee member) / Arizona State University (Publisher)
Created2011
Description
The ability to shift the photovoltaic (PV) power curve and make the energy accessible during peak hours can be accomplished through pairing solar PV with energy storage technologies. A prototype hybrid air conditioning system (HACS), built under supervision of project head Patrick Phelan, consists of PV modules running a DC compressor that operates a conventional HVAC system paired with a second evaporator submerged within a thermal storage tank. The thermal storage is a 0.284m3 or 75 gallon freezer filled with Cryogel balls, submerged in a weak glycol solution. It is paired with its own separate air handler, circulating the glycol solution. The refrigerant flow is controlled by solenoid valves that are electrically connected to a high and low temperature thermostat. During daylight hours, the PV modules run the DC compressor. The refrigerant flow is directed to the conventional HVAC air handler when cooling is needed. Once the desired room temperature is met, refrigerant flow is diverted to the thermal storage, storing excess PV power. During peak energy demand hours, the system uses only small amounts of grid power to pump the glycol solution through the air handler (note the compressor is off), allowing for money and energy savings. The conventional HVAC unit can be scaled down, since during times of large cooling demands the glycol air handler can be operated in parallel with the conventional HVAC unit. Four major test scenarios were drawn up in order to fully comprehend the performance characteristics of the HACS. Upon initial running of the system, ice was produced and the thermal storage was charged. A simple test run consisting of discharging the thermal storage, initially ~¼ frozen, was performed. The glycol air handler ran for 6 hours and the initial cooling power was 4.5 kW. This initial test was significant, since greater than 3.5 kW of cooling power was produced for 3 hours, thus demonstrating the concept of energy storage and recovery.
ContributorsPeyton-Levine, Tobin (Author) / Phelan, Patrick (Thesis advisor) / Trimble, Steve (Committee member) / Wang, Robert (Committee member) / Arizona State University (Publisher)
Created2012
Description
Derived from the idea that the utilization of sustainable practices could improve small business practice, this honors thesis offers a full business assessment and recommendations for improvements of a local, family-owned coffee shop, Gold Bar. A thorough analysis of the shop's current business practices and research on unnecessary expenses and waste guides this assessment.
ContributorsSorden, Clarissa (Co-author) / Boden, Alexandra (Co-author) / Darnall, Nicole (Thesis director) / Dooley, Kevin (Committee member) / Barrett, The Honors College (Contributor) / School of Sustainability (Contributor) / W. P. Carey School of Business (Contributor) / Department of Management (Contributor) / Department of Supply Chain Management (Contributor)
Created2015-05
Description
The coffee industry is enormous and has grown around the world. Today, 125 million people depend on coffee production for their livelihood, and coffee is consumed in every part of the globe. Arizona State University, the largest public university in the United States, gathers a large number of coffee drinkers as college students become dependent on caffeine in order to perform their best in multiple facets of their hectic lives. Researchers realized that there is still a gap that has not been filled in the Tempe retail coffee market. Thus, the objective of this project is to conduct a detailed research on the retail coffee industry, and to craft a profitable business plan for a coffee shop in the Vista del Sol community. The researchers utilized both quantitative and qualitative analysis tools. All survey results, calculations, and maps can be found in the appendices and the Excel file.
To help the readers better understand the industry, the researchers provide a detailed analysis on the retail coffee industry from both macro and micro levels. The Coffee Break House aims to be the leader of the retail coffee industry by delivering consistent, fast and superior service, providing high-quality beverages, being the most inviting store, and having the friendliest staff in a relaxing and welcoming environment. The coffee shop will be owned and operated by four equity investors. The business plan, which includes six major sections, shows investors’ vision and strategic focus.
• Market Situation Analysis
• Marketing Strategy
• Supply Chain Strategy
• Financial Strategy
• Expansion Plan
• Risks
The researchers believe that the Coffee Break House has the potential to become a successful business and provide lucrative returns to potential investors. This is due to the company’s aggressive marketing strategy, establishment of the company as a unique entity in the industry, careful development of its products, a well developed supply chain strategy, and a profitable revenue model.
To help the readers better understand the industry, the researchers provide a detailed analysis on the retail coffee industry from both macro and micro levels. The Coffee Break House aims to be the leader of the retail coffee industry by delivering consistent, fast and superior service, providing high-quality beverages, being the most inviting store, and having the friendliest staff in a relaxing and welcoming environment. The coffee shop will be owned and operated by four equity investors. The business plan, which includes six major sections, shows investors’ vision and strategic focus.
• Market Situation Analysis
• Marketing Strategy
• Supply Chain Strategy
• Financial Strategy
• Expansion Plan
• Risks
The researchers believe that the Coffee Break House has the potential to become a successful business and provide lucrative returns to potential investors. This is due to the company’s aggressive marketing strategy, establishment of the company as a unique entity in the industry, careful development of its products, a well developed supply chain strategy, and a profitable revenue model.
ContributorsJiang, Yichun (Co-author) / Yin, Jiangting (Co-author) / Oke, Adegoke (Thesis director) / O'Neill, Dan (Committee member) / W. P. Carey School of Business (Contributor) / Department of Information Systems (Contributor) / Department of Finance (Contributor) / Department of Supply Chain Management (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
The key to success is hard work and determination. Achieving success is always under construction. This project began as a simple analysis of the firm's progress, as at the time it was in desperate need of new clients and a marketing strategy to strengthen its visibility on campus.Through this evaluation, our team found that the firm was in an abysmal state and the previously noted problems were not the only issues of concern. From our research we found that in order for the firm to grow and become a successful student run consulting firm, there are several interorganizational issues that need to be understood and addressed. The intention of New Venture Group and the Consulting Scholars academic program is to provide students the opportunity to garner practical learning experiences. These potential opportunities are not taken full advantage of because of the afflicting problems that exist. The purpose of this thesis is to understand what problems exist within the firm and the next steps that should be taken to resolve them.
ContributorsBaskin, Connor (Co-author) / Farr, Austin (Co-author) / Chou, Alexandra (Co-author) / Laub, Jeffrey (Thesis director) / Taylor, Todd (Committee member) / Department of Supply Chain Management (Contributor) / Department of Economics (Contributor) / Department of Marketing (Contributor) / Department of Finance (Contributor) / School of International Letters and Cultures (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor) / Department of Information Systems (Contributor) / W. P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
This thesis serves as a business plan for an intellectual property law firm, Starr PLLC. The intellectual property law firm is intended to be started by two attorneys with 10+ years of experience. It is believed that the firm will be more profitable during the start-up phase if begun by attorneys with previous experience rather than recent law school graduates. Starr PLLC will gear its intellectual property services towards small business owners in the greater Phoenix area. Many small business owners seek intellectual property legal services from large firms where they do not to receive the service they deserve. Large law firms have several clients and often make themselves more available for larger well-known clients rather than small business owners. The needs of a small business owner often come in second to the needs of well-known clients. Additionally, small business owners are typically stuck with an inexperienced attorney handling a majority of their case when they use the services of a large law firm. Starr PLLC wants to change this by making small business owners the focus of its services and ensuring that their cases are handled by an experienced attorney. Starr PLLC would like to eventually expand to a mid-size firm with 30 \u2014 50 attorneys. Networking and marketing will be important to achieving that growth. For this thesis, current small business owners were interviewed and asked what they look for when seeking legal services. Half of the small business owners who were interviewed had sought intellectual property legal services prior to the interview and the other half had not. This allowed for insight from both types of clients. Additionally, several attorneys and the marketing director of a law firm were interviewed to gain insight regarding the operations of a pre-existing firm. The founding partner of a law firm was also interviewed and provided information on the many challenges that one must overcome to start a successful law firm. This business plan was structured around the responses received during these interviews as well as the ones previously mentioned.
ContributorsStarr, Lynnsee Irene (Author) / Dawson, Gregory (Thesis director) / Miller, Duane (Committee member) / Department of Finance (Contributor) / W. P. Carey School of Business (Contributor) / Hugh Downs School of Human Communication (Contributor) / Barrett, The Honors College (Contributor)
Created2015-12
Description
The client detailed in this report is a premier continuing healthcare education organization providing a variety of homeopathic therapy classes for its students. The purpose of this paper is to showcase a business plan that will help dictate the basic structure of the client's business once they are independent of their current managing company. Extensive analysis, primarily based upon online market research and personal correspondence with the client, was conducted for this report. Detailed within this paper are several areas where the client can significantly lower costs and increase future revenues by modifying practices employed by the managing company. From the analysis provided, the client has the opportunity to create and grow a well-organized, profitable business with a sustainable future.
ContributorsMionis, Erika (Co-author) / Lee, Betty (Co-author) / Coult, Natasha (Co-author) / Brooks, Dan (Thesis director) / Chikly, Bruno (Committee member) / Barrett, The Honors College (Contributor) / Department of Supply Chain Management (Contributor) / Department of Finance (Contributor) / School of International Letters and Cultures (Contributor) / School of Life Sciences (Contributor) / W. P. Carey School of Business (Contributor)
Created2015-05
Description
Innovation Space is a course designed to challenge senior students to collaborate on an interdisciplinary basis while completing a thought-provoking project. Each project is designed to allow students to address real-world issues. My team, Leverage, has created a product suite for power wheelchair users. Our product suite equips a wheelchair with a backup camera, an expanding lap desk, and a headrest with integrated Bluetooth speakers and microphone. These products are designed to increase the productive potential of the disabled, particularly quadriplegics injured around the C4 vertebra level. During the course of the program, my team will create physical prototypes of our product and I will create a full business plan. The individual written portion of my thesis will consist of discussion of a branding framework developed by creative director Patrick Hanlon. In addition, I will suggest methodology for effectively branding our company.
ContributorsGaynor, Max Daniel (Author) / Peck, Sidnee (Thesis director) / Desch, Timothy (Committee member) / Barrett, The Honors College (Contributor) / W. P. Carey School of Business (Contributor) / Department of Marketing (Contributor) / Department of Management (Contributor)
Created2014-05
Description
The goal of this project is to gain and use knowledge of sustainability topics as a value-adding function for a business in the Tempe, AZ area and to develop the skills to approach and consult with business owners and staff about sustainable business options. Sustainability searches for a balance between society, economy and the environment where all three can thrive; therefore, the ideal project partner was a business that values the wellbeing of mankind, is locally owned and operated and promotes environmental stewardship. The Original Chop Shop Co in Tempe Arizona was appropriately selected. Throughout the duration of our partnership, I observed their daily routine, interviewed employees and managers and used the collected information to identify three areas of focus that have the largest potential to reduce The Original Chop Shop Company's impact on the environment. Information on the areas of recycling, composting, and food sourcing was researched and synthesized to make suggestions for ecofriendly changes to business practices. The scope of the project includes small changes in daily practices such as implementing a recycling and composting program and employee training sessions and minor investments such as purchasing a micro washer and silverware in order to eliminate nonrenewable plastic utensils. The scope does not include major renovations or investments in technology. The suggestions offered position The Original Chop Shop to conduct business in a way that does not compromise the health of the environment, society, or economy.
ContributorsFerry, Brianna Aislinn (Author) / Dooley, Kevin (Thesis director) / Darnall, Nicole (Committee member) / Barrett, The Honors College (Contributor) / W. P. Carey School of Business (Contributor) / School of Politics and Global Studies (Contributor)
Created2015-05