Sweating Case Study

1. Discuss one of the skin physical properties that assigned to your group.
Sweating is one of the categories of the physical properties of skin. To simulate the sweating of the skin properties, metals and textiles are the materials to simulate the sweating properties.
One of the properties of sweating is evaporation. Evaporation involves a liquid changing to a gas. The liquid particles with high enough energy can escape from the surface of the liquid. These form a vapour above the liquid surface. The liquid will then be cooler than its surroundings and therefore will take in heat energy from the surroundings and raise the kinetic energy of the particles within the liquid and the entire process will start again. This process is why sweating
The sweating guarded hotplate is also named “Skin Model”. It consists of a porous aluminium plate that is able to maintain at 37C to replicate the human skin temperature. Besides, the passing of the water vapour at a controlled humidity through the porous plate mimic sweating. It simulates the behaviour of the human skin in this way. The equipment mimics the sweating mechanisms at the surface of human skin. Hence, the performance of breathable fabric or membrane systems can be studies under theoretically more realistic conditions than conventional water vapour permeability tests. The temperatures of the measuring unit and thermal guard ring are controlled 35°C to mimic the temperature of the skin, and the test specimen is laid over the measuring unit and thermal guard ring to overlap the thermal
Both of this factor is the fundamental to thermophysiological comfort. These measurements supply precise data on thermal insulation and moisture transport resistance, perspiration transport, etc. This experiment is carried out inside the climatic chamber; the porous sintered metal plate is used as a measuring surface to allow water vapour and fluid water to be released in a controlled manner. Thus this simulates the perspiration of human skin with different wear situation at different levels of sweat productions. There are a moisture sensor that lies between the measuring surface and the textile as it is used to test and measure the buffer effect of the textile and determine how much is the amount of water vapour can be transported from the body within a specific time. Manual evaluation of the measuring data from a series of wear tests that takes up to 3 months, now it could be done in a matter of a few hour with this computer-based