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Heat Technologies

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Sreenija Pappur

on 23 June 2013

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Transcript of Heat Technologies

Heat Technologies
By: Sreenija, Smita, Arshdeep, Aqsa
By the end of our lesson, you should be able to...
Understand the different types of heating technologies
Understand what they are used for
Be able to list examples of heat technologies
Be able to explain how these technologies are impacting our environment
Explain how these technologies socially impact us
What Are Heat Technologies?
7000 B.C.
100 B.C.
Humans create
Romans develop
A.D. 1200

Chimneys first
appear in Europe
Cast iron stones.
Late 1700s
Central heating.
Forced air heating.
Early Heating Technology Time Line
Heat transfer - transition of thermal energy or simply heat from a hotter object to a cooler object
Mass transfer - process of transferring mass (water, water vapor, solvent, solvent vapor, etc.) from one media to another (from solids to air, from coated materials to air, etc.)
Oscillation - reversible organized pressure wave

Heat Technologies affect
Heat technologies are any type of invention that provide heating or cooling for a certain purpose, or convert heat into energy. In other words a heat technology is a device that is meant to supply heat.
There are many types of heat technologies that we use everyday from sweaters that keep us warm to thermos flasks that keep drinks warm.Even though there are many types of heat technologies we will be focusing on three of the major ones.
Insulation & Conduction

Thermal Insulation and Conduction play a huge role in heat technologies and many heat technologies depend on them.

Insulation: is when you reduce the amount of heat transfer. So heat won't escape. For example: houses are made out of insulating materials like wood which keep the heat trapped inside.

Conduction: is the transfer of heat between objects. So heat can transfer between one object to another.

There are two main technologies that we use these days to help us achieve and maintain room temperature and/or any other temperature we choose.
Local Heating Systems
Local heating systems only supply heat energy in room or space heaters.

Central heating systems
A space hater is a small portable device that can run on fuel or electricity .
From a single central location, central heating systems supply heat energy.
The heat energy can be moved through a network
of pipes,ducts, and vents to different places in a home.
Heat Technologies are part of our daily lives now. microwaves, refrigerators, heaters, air conditioners, vehicles and more.

Heating Systems in your home or in your building has a central heating system (a system for heating the rooms of a building by means of radiators or air vents connected by pipes or ducts to a central source of heat) which controls the temperature e of every room.
Full transcript