Whakawhiti Wera XL

The Whakawhiti Wera XL (WWXL) is an LuV tier multiblock that evaporates distilled water into steam with the heat from lava, hot coolant, or hot solar salt for Power Generation. If the input rate of hot fluid exceeds the superheated threshold, then superheated steam is produced instead. The WWXL does not consume any power or fuel but still runs the risk of exploding if not supplied with enough distilled water. 100% of the hot fluid is recycled back into its cooler equivalent at all times and 100% of the steam is recycled back into distilled water by XL Turbo Steam Turbines at maximum efficiency--forming a sustainable closed loop system. The WWXL is nearly identical to the Large Heat Exchanger except it has 32x more throughput and higher superheated thresholds. The WWXL is superseded by the Extreme Heat Exchanger in terms of power generation because the EHE can handle plasma and can output supercritical steam.

Spreadsheet: GTNH Power Planner 2.9

The WWXL has no tiered components. Insert hot fluid through an input hatch at the bottom center of the structure and distilled water through an input hatch at the bottom edge of the structure. Extract cool fluid from an output hatch at the top center of the structure and steam from an output hatch at the bottom edge of the structure. There is no energy hatch or muffler hatch because the machine does not consume any power or fuel, but there is a maintenance hatch. Use the Multiblock Structure Hologram Projector to visualize/build the structure.

Structure

• Controller: Front center, 4th layer
• 90-96 Reinforced Heat Exchanger Casing
• 45 Tungstensteel Pipe Casing
• 16 Talonite Frame Box
• 1 Maintenance Hatch: Any bottom edge casing
• 2+ Input Hatch: Any bottom center casing (hot fluid), any bottom edge casing (distilled water)
• 2+ Output Hatch: Any top center casing (cool fluid), any bottom edge casing (steam)

Wallsharing

WWXLs may wallshare each of their sides to save on casings, frame boxes, and buses/hatches. However, that does not include the input hatch for hot fluid or the output hatch for cool fluid due to the restrictions on their locations. Ensure that all WWXLs still receive enough distilled water and the output hatch is large enough to support the combined steam output (ZPM+ for 1,024,000 L/t SH Steam).

The WWXL evaporates distilled water into steam with the heat from lava, hot coolant, or hot solar salt. The WWXL does not consume power, but explodes immediately if it ever runs out of distilled water.

The WWXL has its own efficiency value that is directly proportional to the output rate of steam and therefore the amount of distilled water recycled back into the machine in a closed loop system. The efficiency of the WWXL increases linearly while the machine is active and almost immediately resets back to 0% while idle. It takes approximately 2 minutes to reach maximum efficiency so it is very important to maintain a steady supply of hot fluid. Maintenance issues reduce the maximum efficiency by 10% each.

The WWXL converts hot fluid into its cooler version once per second and distilled water into steam once per tick. There are only three hot fluids available, listed below in the following table, and each one is perfectly recycled regardless of the current efficiency. If the input rate of hot fluid exceeds the superheated (SH) threshold, then the WWXL produces superheated steam instead of regular steam. However, there is a maximum throughput rate that is always twice the threshold value. Excess input is NOT consumed.

Optionally, a programmed circuit can be placed inside the controller to reduce the SH threshold at the cost of steam. Each value above 1 reduces the SH threshold by 3.75% (additive) and the output rate of steam by 1.5% (additive). For example, a WWXL with hot coolant and a programmed circuit of 3 has its SH threshold reduced from 25,600 L/s to 23,680 L/s for 97% of the original steam output. The biggest downside of doing this is that a closed loop system can no longer perfectly sustain itself with distilled water.

The steam produced by the WWXL is used to generate power with a series of XL Turbo Steam Turbines in the order listed below. Both types of steam have the same conversion ratio so the output of one can feed directly into the input of the next. At maximum efficiency, 100% of the steam is recycled back into distilled water--forming a sustainable closed loop system. SH steam generates 2x more EU than regular steam at the same optimal flow rate.

• The XL Turbo HP Steam Turbine generates power from SH steam and converts it to regular steam at a 1:1 ratio.
• The XL Turbo Steam Turbine generates power from regular steam and converts it to distilled water at a 160:1 ratio.

If the steam throughput is too high for steam valves or fluid pipes, use fluid P2P tunnels instead. They have no transfer limit and evenly distribute all fluids between all output connections.

• The name Whakawhiti Wera is Maori for "heat exchanger."