Co‑Located Liquid‑Cooled Data Centres and Offices: Waste‑Heat‑Driven Summer Cooling and Heat‑Pump‑Augmented Winter Heating
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2026
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| _version_ | 1866901969595006976 |
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| author | Solanki, Shyamal |
| author_facet | Solanki, Shyamal |
| contents | <p class="FirstParagraph"><span>Liquid‑cooled data centres can export mid‑grade waste heat (~50–75 °C), enabling coupled office energy systems that reduce purchased electricity for summer cooling and displace heating energy in winter. This paper develops an energy‑ and exergy‑based screening model to compare (A) adsorption/absorption sorption cooling, (B) ejector refrigeration, (C) heat-engine/ORC‑driven vapour compression, and (D) heat‑pump augmentation, applied to a 10,000 m² office (24 °C setpoint, 32 °C ambient; 9 h/day, 5 days/week; 70 W/m² average and 120 W/m² peak cooling intensity). Using a high‑performance baseline defined by TSE = 0.731 kW/RT from a published office worked example, Variant A (COP</span><span></span><span>=0.60) reduces occupied-hours cooling electricity by ~52% while requiring ~1.17 MW driving heat average (IT ~1.3–1.9 MW depending on </span><span></span><span>). Variant B and C demand substantially larger driving heat due to low COP</span><span></span><span><span> </span>or low heat‑to‑work efficiency, while Variant D is most compelling for winter heating (e.g., district heating lift to 70–75 °C with COP</span><span></span><span><span> </span>≈ 4.5–5.0). Field reports show sorption cooling can degrade sharply with recooling‑water temperature on hot days, motivating hybrid controls and recooling-first design.</span></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19517945 |
| institution | Zenodo |
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| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Co‑Located Liquid‑Cooled Data Centres and Offices: Waste‑Heat‑Driven Summer Cooling and Heat‑Pump‑Augmented Winter Heating Solanki, Shyamal Thermodynamic engineering Thermodynamics HVAC Heat pump Cooling Mechanical engineering <p class="FirstParagraph"><span>Liquid‑cooled data centres can export mid‑grade waste heat (~50–75 °C), enabling coupled office energy systems that reduce purchased electricity for summer cooling and displace heating energy in winter. This paper develops an energy‑ and exergy‑based screening model to compare (A) adsorption/absorption sorption cooling, (B) ejector refrigeration, (C) heat-engine/ORC‑driven vapour compression, and (D) heat‑pump augmentation, applied to a 10,000 m² office (24 °C setpoint, 32 °C ambient; 9 h/day, 5 days/week; 70 W/m² average and 120 W/m² peak cooling intensity). Using a high‑performance baseline defined by TSE = 0.731 kW/RT from a published office worked example, Variant A (COP</span><span></span><span>=0.60) reduces occupied-hours cooling electricity by ~52% while requiring ~1.17 MW driving heat average (IT ~1.3–1.9 MW depending on </span><span></span><span>). Variant B and C demand substantially larger driving heat due to low COP</span><span></span><span><span> </span>or low heat‑to‑work efficiency, while Variant D is most compelling for winter heating (e.g., district heating lift to 70–75 °C with COP</span><span></span><span><span> </span>≈ 4.5–5.0). Field reports show sorption cooling can degrade sharply with recooling‑water temperature on hot days, motivating hybrid controls and recooling-first design.</span></p> |
| title | Co‑Located Liquid‑Cooled Data Centres and Offices: Waste‑Heat‑Driven Summer Cooling and Heat‑Pump‑Augmented Winter Heating |
| topic | Thermodynamic engineering Thermodynamics HVAC Heat pump Cooling Mechanical engineering |
| url | https://doi.org/10.5281/zenodo.19517945 |