Tuvalu steam storage tank

What is a steam accumulator storage tank?

The storage tank of a steam accumulator must be able to withstand the pressure of the water, including hydrostatic pressure. The storage tank accounts for the larg-est portion of the capital cost of a steam storage tank. One focus of the design is to minimize the mass of the storage tank for safe operation.

What is an equal pressure storage tank?

In principle, the equal-pressure storage tank is an extension of the steam boiler. Boiling water is channelled from the boiler into the steam accumulator to charge the accumulator. If steam is required again, the equal-pressure storage tank returns the water to the boiler at a slightly lower temperature.

What is a gravity storage tank (Ruths accumulator)?

In contrast to the constant pressure storage tank, the advantage of the gravity storage tank (Ruths accumulator) is that it can supply steam directly without having to go via the steam boiler. Inside, it consists of a steam distributor with nozzles and mixing pipes.

What are the activities of Vaitupu Island in Tuvalu?

Vaitupu island is one of the three raised islands in Tuvalu. Key activities include the construction of a groundwater infiltration gallery, pumping facilities, water storage facilities, construction of pipelines to connect water from water reserves to the urban centre, construction of a filling station and the rehabilitation of freshwater ponds.

Does Tuvalu have a freshwater supply?

As such, Tuvalu since the late 1990s has depended on RO units to supply freshwater for its communities. With the groundwater classified as non-potable in most islands, freshwater supply is scarce in Tuvalu. RO units were initially introduced as a back-up supply system for freshwater, particularly in times of dry spells.

What is a Tuvalu water & sanitation project?

As such they fit within the scope of a large-scale project funded by the Asian Development Bank to strengthen the water and sanitation sector in Tuvalu over the period 2020 to 2023 with its ensuing phase scheduled for approval in 2022. (Refer to Section 3 of this report for more details)