ME115 – Lab #6 Air Water Heat Exchanger Lab
The following laboratory experiment is open-ended.
In other words, there will be no
specific instructions telling you what to measure and calculate. Each lab group will be
required to design experiments to satisfy the objectives described in this assignment, and
do all necessary calculations and documentation.
However, due to time constraints,
multiple teams may need to take data at the same time.
Heating, ventilation and air-conditioning (HVAC) is an engineering profession
not known to many engineering students. Many are not aware that there is an entire
profession devoted to designing, fabricating, installing, maintaining and retrofitting
HVAC systems. Professional engineers, project managers, field technicians and many
others work together to design HVAC systems while adhering to strict regulations
regarding indoor air quality and energy efficiency standards. Some examples of heating,
ventilation and air-conditioning design applications include residential or commercial
buildings, clean rooms for the high tech industry, food processing factories, and even
small units for automobiles. In order to appreciate how heating, ventilation and air-
conditioning systems work, you will need to understand the basic principles behind these
The objectives of the lab are to:
Identify the major components of a hot water heating system
Perform energy balance calculations on a water to air heat exchanger
Understand how heat exchangers are characterized
Use knowledge gained thus far in the lab to design, conduct, and analyze
The Heat Exchanger Laboratory Testing Unit was a senior project developed by a
team of students, faculty and industry sponsors. It models a closed loop hot water heating
system found in a typical commercial building.
The hot water system comprises of a boiler, pump, valves, expansion tank, in-line