Hot Water Boiler Economizer PreHeater | Energy Efficiency - This is a hot water economizer and is a big preheater for domestic hot water use. This hot water boiler plant serves a large community for heating and domestic hot water use. Domestic hot water is used for showers, washing dishes, laundry, etc, etc, etc….
The cold water supply from the city is routed through the economizer to be pre-heated before it goes through a heat exchanger and then the hot water storage tank. (more…)
How Cooling Towers Work - Cooling towers use evaporation cooling to cool condenser water from a chiller. Water is pumped to the top of the cooling tower, where the water flows down some flow plates to the cooling tower basin. As the water is flowing down the flow plates air is pulled through the plates and over the water where it releases heat through evaporation. (more…)
Heat Exchanger & Domestic Hot Water Storage Tank - In the front is a commercial heat exchanger. Behind the commercial heat exchanger is a domestic hot water storage tank.
The entire system is monitored by direct digital controllers to control the water temperature, the boilers, the valve actuators, and the heat exchangers. It is important to monitor the temperature of any domestic water system. Temperatures above 130° F. should be avoided as they will scald people. This can result in legal issues so it is important this is controlled accurately. Direct Digital Control can offers alarms for this issue in case something goes wrong or something fails. (more…)
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