HVACR/ Thermodynamics

Simple Heat Transfer Experiments: Convection and Radiation

What are some simple heat transfer experiments that can be done to demonstrate convection and radiation?

Published by Dr. Crystal Cooper (3412 pts) on Sep 18, 2009 to
Mechanical Engineering Articles
Simple Heat Transfer Experiments: Conduction

In this article, we discuss some examples of heat transfer mechanisms that occur simultaneously, and also simple heat conduction experiments you can do at home.

Published by Dr. Crystal Cooper (3412 pts) on Sep 9, 2009 to
Mechanical Engineering Articles
What is Thermal Radiation?

Why do you feel cooler if you white clothes instead of black ones on a hot sunny day? And why is the inside of a thermos bottle shiny instead of dull?

Published by Dr. Crystal Cooper (3412 pts) on Aug 31, 2009 to
Mechanical Engineering Articles

What is Convection?

By what process is heat transferred to the boiling water you use to steam vegetables such as a corn cob, or to your room when it is heated by a radiator?

Published by Dr. Crystal Cooper (3412 pts) on Aug 30, 2009 to
Mechanical Engineering Articles
Thermal Conduction Examples

How do your clothes keep you warm on a cold day? And why do rugs feel warmer to your feet than a tile floor that is at the same temperature? Could it be heat conduction at work?

Published by Dr. Crystal Cooper (3412 pts) on Aug 28, 2009 to
Mechanical Engineering Articles
What is Thermal Conduction?

By what process is heat transferred when your hands become cold when you make a snowball or hot when you wrap them around a mug of coffee? Why are metals better heat conductors than plastic or wood?

Published by Dr. Crystal Cooper (3412 pts) on Aug 28, 2009 to
Mechanical Engineering Articles

Gas Charging in Split Air Conditioners

In the previous articles we was the factors affecting the location of indoor and outdoor units of split AC, the installation of the indoor unit, the outdoor unit and the refrigerant tubing. In this article we shall see the final step of installation of split air conditioner, the gas charging.

Published by Haresh Khemani (23598 pts) on Aug 21, 2009 to
Mechanical Engineering Articles
Installation of the Refrigerant Tubing in Split Air Conditioners

In the previous articles of this series on installation of the ductless split AC we saw the installation of the indoor unit and the outdoor unit. In this article we shall see installation of the refrigerant tubing, and electric connections.

Published by Haresh Khemani (23598 pts) on Aug 18, 2009 to
Mechanical Engineering Articles
Installation of the Outdoor Unit of Split Air Conditioners

During installation of the outdoor unit of split AC, selecting the proper location of the unit is very important the rest of the things are not too complicated. Let us the factors affecting the location of the outdoor unit and steps for the installation of the unit.

Published by Haresh Khemani (23598 pts) on Aug 17, 2009 to
Mechanical Engineering Articles
Installation of the Wall Mounted Indoor Unit

After deciding the location of the indoor and the outdoor unit, the installation of indoor unit is started. Here are the steps for the installation of wall mounted indoor unit of the split air conditioner.

Published by Haresh Khemani (23598 pts) on Aug 15, 2009 to
Mechanical Engineering Articles