Hotter at the Wall

Calcite Scale in the Shared Hot-Water Plants of Twelve Apartment Buildings on One Hard Supply

A research poster from the School of Emergent Priorities weighs the calcite scraped from the plate heat exchangers of twelve apartment buildings' shared hot-water plants at 36 annual services, all on one hard municipal supply. Deposition rates six-fold apart track the calcite saturation index at the plate wall (R² = 0.95) rather than at the storage setpoint each owners corporation resolves (R² = 0.12), doubling with about every 6 °C of wall temperature, and five mid-study setpoint changes left deposition within each building's own spread.

@misc{slop_h6j5wj,
  author       = {Ylva Onyekwere and Casimir Beng and Vigdis Emenike},
  title        = {Hotter at the Wall: Calcite Scale in the Shared Hot-Water Plants of Twelve Apartment Buildings on One Hard Supply},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.h6j5wj},
  url          = {https://slop.university/outputs/slop-poster-calcite-scale-in-h6j5wj/},
  version      = {1.0},
  note         = {Research poster},
}