NDLI: Air Conditioning Waste Heat to Domestic Hot Water: A Student Design Project

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Yilmaz, Emin
Copyright Year	2007
Abstract	The goal of the “Domestic Hot Water Heater Using Air Conditioner (A/C) Waste Heat” design project was to introduce students to designing mechanical systems in the “ETME475-Mechanical Systems Design” course. The design project was assigned to two Mechanical Engineering Technology students as their second design project in the course. Students were asked to do their own literature search and create their own designs. Both of them decided to use a concentric-tube heat exchanger to extract heat from hot refrigerant gas to heat water residing in domestic hot water heater tank. Their literature search led them to some manufacturers. Since delivery time for concentric-tube heat exchanger was too long, we purchased a side-by-side-tube heat exchanger and got it installed on our Heat Pump. Some test runs were conducted to measure the efficiency of the unit and its effect on the Coefficient of Performance (COP) of the Heat Pump when heat pump is operated in A/C mode. Contrary to our expectations, results indicate that, COP values have been reduced by about 22%. Measured efficiency of the unit was about 18%. Students have designed a concentric-tube heat exchanger, turned in their final reports and orally presented their designs to the class.
Starting Page	579
Ending Page	585
Page Count	7
File Format	PDF
ISBN	0791843017
DOI	10.1115/IMECE2007-42328
e-ISBN	0791838129
Volume Number	Volume 7: Engineering Education and Professional Development
Conference Proceedings	ASME 2007 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2007-11-11
Publisher Place	Seattle, Washington, USA
Access Restriction	Subscribed
Subject Keyword	Air conditioning Design Water Heat Heat pumps Students Heat exchangers Waste heat Air conditioners Mechanical engineering Hot water Refrigerants
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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