hot-water storage tank

hot-water storage tank

A tank that meets code requirements for storing hot water. These requirements depend on its size and pressure as well as the authority having jurisdiction. The volume of the tank usually is selected so that 60 to 80 percent of the volume of water in the tank may be drawn off before the temperature drop of the water in the tank is unacceptable.
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The solar hot-water storage tank may need periodic inspection and topping off, and various valves, pumps and sensors can sometimes need replacement.
(2000) installed a solar-assisted solid desiccant cooling system with a 20 [m.sup.2] flat-plate solar collector and a 2 [m.sup.3] hot-water storage tank. The system had a cycle configuration such as that shown in Figure 5, excluding the heat exchanger in the process air.
The typical absorption cycle solar cooling system consists of an absorption chiller, a solar collector, a hot-water storage tank, and an auxiliary heater, as illustrated in Figure 6.
In their system, thermal energy produced by the solar collector was stored in a 2.5 [m.sup.3] hot-water storage tank. Their experimental results during the summer period showed that the cooling capacity and the [COP.sub.sr] were 6.5 kW and 0.14, respectively.
Li and Sumathy (2001) developed a single-effect [H.sub.2]O/LiBr absorption chiller of 4.7 kW nominal cooling capacity assisted by a 38 [m.sup.2] array of solar flat-plate collectors with a partitioned hot-water storage tank. In their system, thermal energy produced by the solar collector was stored in a 2.75 [m.sup.3] hot-water storage tank, which is partitioned into two parts in 1:3 volume ratio.
They consist of one or more collectors, insulated piping, a circulating pump, an expansion tank, a hot-water storage tank, a heat exchanger, solar fluid (usually a solution of water and nontoxic propylene glycol antifreeze), a controller, and some valves and gauges.
A solar heating and cooling system including a 35.17 kW cooling absorption chiller, an evacuated tube solar collector, two hot-water storage tanks, two cold-water storage tanks, and a 281 kW cooling tower has been designed and built by the researchers.
* Check that all hot-water storage tanks and pipe work are adequately and fully insulated.
For example, Winn is adding more volume to its hot-water storage tanks so that they become more efficient, especially during high-use times such as mornings and evenings.