The human body is regulated to heat at 37° C (98.6° F). Our muscles produce this heat which is needed to maintain body temperature. We know that our body is made up of different parts which have a different temperature, So this temperature must be balanced. In the winter season, we will maintain our temperature by Wearing warm clothes which holds our heat inside and also we use heaters.

The US engineers developed small patches to hold our body heat by applying a constant heat to our body that can be stitched inside our clothes. These patches can replace our conventional heating system and can save 47 % of global energy used for indoor heating

Energy
Picture Credit: Credit: Getty Images.

What is this small patch?

Engineers at US universities have developed this little device to heat directly our body instead of external environment. The launched it a day before World Energy Day 2018. This small device is made with high technology. It is cost effective and flexible which can be sewn in clothes. This is thinner than a human hair. These patches are made by using “intense pulse-light sintering“fused with silver nanowires.
What is Sintering?
Sintering is a heat treatment process in which large solid material converts into a compact size by applying high temperature and pressure
What is intense pulse light sintering?
Intense pulsed light (IPL) sintering is a promising choice due to its advantage of rapid sintering. This technique relies on a scalable xenon flash lamp emitting light over a wide wavelength spectrum.

Also read:What will happen if there is excess oxygen in your body?

How does it work?

The thin, durable heating patches make use of intense pulses of light to fuse silver wires with polyester. These are thousands of times thinner than a human hair to polyester fibers wising xenon lamps. The patches are considered to be economical, and also can be powered by coin batteries.
Is it used by a Smart Fabric?
The question lies if this method can be used to create a smart fabric which includes patch-based sensors. How many patches use to make body warm, Still these questions are in research. But these patches are durable once bent and washed and also resistant to exposure of high humidity and temperatures.

This technology not only saves our electricity bills, this is also good for our environment. We can save lots of Carbon compounds exposed in the air due to fire which is maintaining heat in the houses. The study notes that roughly 47 percent of global energy is utilized for indoor heating, and 42 percent of that goes waste in heating empty spaces and objects instead of people. To solve the global energy crisis, a major reduction is required in energy used for indoor heating.