An evaporative air cooler is a type of air conditioner that works by harnessing the power of evaporation to cool air temperatures. When water evaporates, it turns from liquid to gas. As it does so, the highest-energy particles leave the water first, and this leads to a drop in temperature. This is why a moist cloth on your forehead feels good on a hot day — it’s actually helping to lower your head’s temperature as the water evaporates. Evaporative coolers have two major advantages over traditional air conditioners: energy efficiency and sustainability. Both are due to the fact that evaporative coolers use far less electricity to operate; in fact, a standard air conditioner can use up to seven times as many watts of electricity. Using less electricity with an evaporative cooler means lowering your carbon footprint as well as paying less on your utility bills. It should also be noted that evaporative coolers use only water and no chemical refrigerants, which are harmful to the ozone layer.
Solar energy is a source of renewable energy, a photovoltaic powerplant transforms radiation energy from the sun into useful electricity. The generated electricity is used on-site or (portially) is injected into the grid. A solar installation consists of solar panels, a mounting system, solar cables and inverters. The panels are installed on a rooftop or on the ground by the mounting system.
Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy often provides energy in four important areas: electricity generation, air and water heating/cooling, transportation, and rural (off-grid) energy services.
A waste heat recovery unit is an energy recovery heat exchanger that transfers heat from process outputs at high temperature to another part of the process for some purpose, usually increased efficiency. Waste heat may be extracted from sources such as hot flue gases from a diesel generator, steam from cooling towers, or even waste water from cooling processes such as in steel cooling.
Product layout refers to a production system where the work stations and equipments are located along the line of production, as with assembly lines. Process layout is a design for the floor plan of a plant which aims to improve efficiency by arranging equipment according to its function.
Industry 4.0 is a name given to the current trend of automation and data exchange in manufacturing technologies. It includes cyber-physical systems, the internet of things, cloud computing and cognitive computing.