Open Access
Table 1
Viable heat exchanger designs in the market.
| (a) Shell and Tube | (b) Pillow flat plate [13] | (c) Gasket plate [14] |
|---|---|---|
| Average heat transfer rate1) for the first one hour: 30∼34 kW | Average heat transfer rate for the first one hour: 40∼42 kW | Average heat transfer rate for the first one hour: 40∼42 kW |
| HEX material: Stainless steel / Titanium / HDPE | HEX material: Stainless steel | HEX material: Stainless steel (Rubber gasket required) |
| Surface area is smaller than flat plate design and required more than 1800 tubes. Difficulty in finding U-bend for plastic HEX |
Easy to fabricate and customise the size of water channel and gaps between plates. Difficulty in flow control |
Largest heat transfer area, unit size can be minimised Expensive, risk of leakage and corrosion |
| Price range for 1m3 Stainless steel: ≈ US$ 4,000 Titanium: ≈ US$ 5,000  |
Price range for 1m3: > US$ 8,000  |
Price range for 1m3 > US$ 10,000  |
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