Resources
Calculators, an atlas of system layouts, guides, checklists and design manuals — free. Plus articles on industrial cooling by topic.
Calculators
Absorption Chiller vs Electric Chiller: Annual Energy Cost Calculator
For 1,000 kW of cooling, a gas-fired absorption chiller spends RUB 1.01 million a year on energy vs RUB 3.19 million for an electric…
Heating and Cooling Calculator: 4 Options Over 10 Years (RUB)
For 3,000 kW of heat and 2,300 kW of cooling, the four options differ by RUB 16.1 million over 10 years. Compare absorption, centrifugal…
Atlas of layouts
Guides and reports
Absorption Chiller or Electric Chiller: 1,000 kW Cost Comparison
At 1,000 kW of cooling, an absorption chiller on cheap heat saves RUB 1.02 million a year and lasts 5–10 years longer. Guide with…
Chiller Tender Checklist: 16 Supplier Questions and 10-Year TCO
16 questions for chiller suppliers, 13 mistakes with red flags in quotes and a 10-year cost of ownership model. A 20-page guide for…
Choosing a Plant Cooling System: 9 Questions, 6 Schemes, 1 Algorithm
9 questions to ask before reading quotes, 6 working schemes from cooling tower to absorption chiller, and a selection algorithm with…
Cooling Tower in Design: Webinar Slides on Selection and Checks
36 slides on cooling towers in design: wet bulb for 6 Russian cities, SP 60 siting corrections, chiller COP, water balance, pump NPSH…
13 Cooling Tower Selection Mistakes: A Guide for Engineers and Buyers
13 cooling tower selection mistakes made by up to 70% of buyers: design point, materials, winter, controls, water, TCO. With an 18-point…
Data Center Cooling: 25 Questions and 7 Options Before Tendering
25 questions, 7 data center cooling options and a 10 MW cost model: a cooling tower without a chiller uses 10x less power for cooling…
Dry Cooler, Cooling Tower or Chiller: Choose by Dry- and Wet-Bulb
Choose heat rejection by 2 thermometers: dry cooler, open or closed tower, or chiller. A 3-step algorithm, a comparison matrix and 3…
5 Industrial Cooling Schemes: Cut Cooling Power Use Up to 10 Times
For the same 1,000 kW cooling load, the power bill differs 10 times. Five schemes with CAPEX, OPEX and electrical load for Cherepovets…
10 Founder Mistakes: How Revenue Grew from RUB 200M to RUB 2B
Revenue went from RUB 200 million to RUB 2 billion once I stopped making 10 mistakes in accounting, order, departments and people. 8-page…
Checklists
Cooling Tower Design Checklist: 56 Checks Before Issuing Drawings
56 checks for a cooling tower design before issue: design point, water balance, pumps and NPSH, Legionella, winter, site layout. 10-page…
Summer Cooling Readiness Checklist: Chillers, Towers, Absorbers
A 17-page checklist: what to check on chillers, cooling towers and absorption chillers 6, 4 and 2 weeks before the heat, based on 337…
Design manuals for engineers
Articles
All articles →Absorption Chiller for Data Centers: Free Up 1,437 kW of Grid Power
A gas absorption chiller cuts a 5,000 kW data center's cooling peak from 1,667 to 230 kW and saves RUB 67M on grid connection. Payback…
Liquid Cooling for Data Centers Without a Chiller: Water to the Chip
A 5,000 kW data center without a chiller: 1.3M kWh a year instead of 10.22M, RUB 18.9M instead of 105.2M. How a closed-circuit tower…
Data Center Cooling: 5 Options for 5,000 kW and Their Annual Cost
Chillers for a 5,000 kW data center cost RUB 105.2M a year, direct-to-chip cooling RUB 18.9M. Five cooling options compared: power, gas…
Turnkey Chiller Plant: Choosing a Single-Responsibility Contractor
A turnkey chiller plant is accepted after a 72-hour integrated test. How to pick a contractor, why piecemeal buying costs more, and 10…
How to Cut Industrial Cooling Costs: 8 Measures with the Numbers
Free cooling on a 1,000 kW load saves up to 1.78 million kWh a year. Eight ways to cut cooling costs: water temperature, VFDs, water, heat…
Absorption Heat Pump: How to Recover Waste Heat from 25–50 °C Water
An absorption heat pump takes 25–50 °C water from a cooling tower, adds steam or gas and delivers 60–105 °C: 42% of heat free, a third…
Need advice on cooling?
Describe your site and task. Cold Energy engineers reply within one business day; complex cases I review personally. Quick question? Message Telegram @nct_admin.