Technology for producing cold water
Specifically, I will explain the process of making cold water from heat.
First, a low-temperature, low-pressure gas-liquid mixed refrigerant (water and water vapor) enters the evaporator. Inside the evaporator, which is in a near-vacuum state, the boiling point of water at 100°C is reduced to 7-10°C, allowing the refrigerant (water) to boil and turn into water vapor by absorbing heat from relatively warm water in the chilled water piping. The water vapor is drawn into the absorber, similar to the suction side of a vapor compression refrigeration cycle compressor. The water vapor is absorbed by the absorbent "lithium bromide" and is pumped into the regenerator. In the regenerator, the mixture of refrigerant and absorbent is heated to separate it back into the original water vapor and absorbent, with the absorbent returning to the absorber and the water vapor being sent to the condenser. There are methods for adding heat in the regenerator, including combustion using fuels such as gas or oil, or using steam or hot water. The refrigerant, which has returned to water after losing heat in the condenser, is depressurized in the expansion device and flows back to the evaporator, repeating the cycle.
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From the development and manufacturing to the sales of living environment equipment, we quickly respond to customer needs. Yazaki Energy System focuses on power cables, general cables, communication cables, gas equipment represented by gas meters, environmental system equipment such as air conditioning and solar thermal systems, and instrumentation equipment like taxi meters. We conduct the development, manufacturing, and sales of living environment equipment within the Yazaki Group in a consistent manner, providing products and services tailored to customer needs. As the energy society evolves, we see this as an opportunity to offer products and services that optimally utilize diverse energy sources, aiming to contribute to our customers and society as a 'comprehensive producer of all energy.' Moving forward, we will continue to challenge ourselves to deliver joy and inspiration to everyone, based on our commitment to being a company that exists with the world and is needed by society.