YUANWANG · WATER & WELLNESS
English reading edition of source pages 20-29. Original reference plates are preserved with English explanations and drawing keys.
SOURCE PAGE 20 / 78
Geothermal cascade use; single-well heat exchange; bathing-water supply; scale and corrosion management; reinjection; geothermal power.
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SOURCE PAGE 21 / 78
Recover usable heat in successive stages rather than discarding warm geothermal water after one application.
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SOURCE PAGE 22 / 78
Production well → high-temperature uses, 80-60°C: thermal driving of liquid-desiccant dehumidification, bathing-pool heating and domestic hot-water heating → intermediate uses, ≤60°C: play-pool make-up water and temperature maintenance, low-temperature make-up water heating and floor/air-conditioning heating → low-temperature uses, 40-20°C: water-source heat-pump recovery and heating → reinjection, ≤20°C. Temperature bands are illustrative source values, not fixed design setpoints.
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SOURCE PAGE 23 / 78
Electrical input enables a heat pump to transfer low-grade source heat to a higher useful temperature. Cooling: compressor → condenser, rejecting heat to groundwater/cooling water → expansion valve → evaporator, absorbing heat from building chilled water → compressor. Heating: the condenser heats building water; the expansion valve reduces refrigerant pressure; the evaporator extracts source-water heat; vapour returns to the compressor.
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SOURCE PAGE 24 / 78
Source label key: submersible pump; sand separator; gas-water separator; reinjection booster pump; heat exchangers 1-4; end users; system circulation pump; hot-water return; aeration unit; iron-removal circuit pump; iron-removal unit; hot-water supply tank; hot-water supply pump; backwash pump; intermediate pump; water-source heat pump; evaporator; condenser. The reference combines heat exchange, iron removal, storage and heat-pump circuits. Pipe tags and equipment duties remain project-specific.
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SOURCE PAGE 25 / 78
Geothermal well → storage and heat exchange → bathing-water services, domestic hot water and building heating. English key:mains water;domestic hot water;hot-spring water;underfloor heating;fan coil;heat-pump unit.
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SOURCE PAGE 26 / 78
Energy collection → heat upgrading → heat delivery. Key:source-energy collection;heat upgrading;heat delivery;compressor;condenser;evaporator;expansion valve. Source/load pumps circulate water to indoor terminals or hot-water storage.
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SOURCE PAGE 27 / 78
Historical brochure assumptions: boiler efficiency 85%; gas RMB 2.6/m³; electricity RMB 0.68/kWh; year-round demand. Winter 24 h/day, with heating 70% of load; summer/shoulder seasons 16 h/day. Equivalent full-load factors account for variable load. Heat-pump example: 0.25 kWh electricity per kWh heat, costing RMB 0.17/kWh heat. Source boiler estimate: 0.1143 Nm³ gas per kWh heat, about RMB 0.30/kWh heat. These are historical modelling assumptions, not current prices, a quotation or guaranteed savings.
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SOURCE PAGE 28 / 78
Source model, RMB per season. Geothermal system: winter 3,789,157.4; summer 265,248.0; shoulder 758,255.6; annual 4,812,661.0. Gas boiler: winter 7,116,243; summer 1,835,226; shoulder 3,665,238; annual 12,616,707.6. Reported savings: winter 3,327,085.43; summer 1,569,978.35; shoulder 2,906,982.81; annual 7,804,046.59. Reported reductions: 46.8%, 85.5%, 79.3%, and 61.9% respectively. Rounded source totals may not reconcile exactly; these case estimates are not audited performance guarantees.
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SOURCE PAGE 29 / 78
Source water 33°C, 80 t/h; hotel demand 300 t/day; mains-water reference 13°C. Avoided heating = 300 × 4.187 × (33-13) / 3.6 = 6,978.33 kWh/day. At boiler efficiency 0.85 and gas heat value 10 kWh/m³: about 821 m³/day. At RMB 3.2/m³: RMB 2,627.2/day; source annual result RMB 958,905. Excludes avoided water purchases. Source units and rounding contain inconsistencies; gas price is interpreted as RMB/m³.
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