https://maximkrasnov.com/Maxim Krasnov, founder and CEO of Cold Energy (NCT), a maker of cooling towers and chillers in Russia. Notes on industrial and data-center cooling.enhttps://maximkrasnov.com/articles/absorption-chiller-data-center-power-limit/https://maximkrasnov.com/articles/absorption-chiller-data-center-power-limit/Wed, 28 Oct 2026 09:00:00 +0300A 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, PUE, Tier IV backup.https://maximkrasnov.com/articles/liquid-cooling-data-center-without-chiller/https://maximkrasnov.com/articles/liquid-cooling-data-center-without-chiller/Sat, 24 Oct 2026 09:00:00 +0300A 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 replaces the compressor.https://maximkrasnov.com/articles/data-center-cooling-five-options/https://maximkrasnov.com/articles/data-center-cooling-five-options/Tue, 20 Oct 2026 09:00:00 +0300Chillers 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, water, PUE, payback.https://maximkrasnov.com/articles/turnkey-chiller-plant-contractor/https://maximkrasnov.com/articles/turnkey-chiller-plant-contractor/Fri, 16 Oct 2026 09:00:00 +0300A turnkey chiller plant is accepted after a 72-hour integrated test. How to pick a contractor, why piecemeal buying costs more, and 10 questions to ask.https://maximkrasnov.com/articles/how-to-cut-industrial-cooling-costs/https://maximkrasnov.com/articles/how-to-cut-industrial-cooling-costs/Mon, 12 Oct 2026 09:00:00 +0300Free 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 recovery.https://maximkrasnov.com/news/third-energia-kholoda-education-session/https://maximkrasnov.com/news/third-energia-kholoda-education-session/Sat, 10 Oct 2026 09:00:00 +0300On October 2 in St. Petersburg we held the 3rd Cold Energy Education Session. This year more than 65 specialists came from Russia, Belarus and Kazakhstan…https://maximkrasnov.com/articles/absorption-heat-pump-waste-heat/https://maximkrasnov.com/articles/absorption-heat-pump-waste-heat/Thu, 08 Oct 2026 09:00:00 +0300An 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 less gas than a boiler.https://maximkrasnov.com/articles/cooling-equipment-made-in-russia/https://maximkrasnov.com/articles/cooling-equipment-made-in-russia/Sun, 04 Oct 2026 09:00:00 +0300Since 2014 we have built cooling towers, chillers, dry coolers, pump stations and controls in Russia. What is local, what is still imported, how to check.https://maximkrasnov.com/articles/chiller-total-cost-of-ownership/https://maximkrasnov.com/articles/chiller-total-cost-of-ownership/Wed, 30 Sep 2026 09:00:00 +0300A chiller is 5–15 % of what you spend on cooling in 15 years; a 1,000 kW unit burns up to RUB 26 million of power a year. How to calculate TCO.https://maximkrasnov.com/articles/cooling-tower-vs-dry-cooler/https://maximkrasnov.com/articles/cooling-tower-vs-dry-cooler/Sat, 26 Sep 2026 09:00:00 +0300At +30 °C a cooling tower gives 26–28 °C water, a dry cooler 36–41 °C. Comparing the two on temperature, water, electricity, climate and maintenance.https://maximkrasnov.com/articles/chiller-free-cooling/https://maximkrasnov.com/articles/chiller-free-cooling/Tue, 22 Sep 2026 09:00:00 +0300In Moscow the wet bulb is below 5 °C for 4,696 hours a year. Free cooling on 1,000 kW saves up to 1.78 million kWh a year. Thresholds, schemes, payback.https://maximkrasnov.com/articles/trigeneration-when-it-pays-off/https://maximkrasnov.com/articles/trigeneration-when-it-pays-off/Fri, 18 Sep 2026 09:00:00 +0300Trigeneration uses 85% of the gas instead of 35–40%: a gas engine makes power, its heat warms in winter and gives cooling via an absorption chiller in summer.https://maximkrasnov.com/articles/cooling-tower-water-consumption/https://maximkrasnov.com/articles/cooling-tower-water-consumption/Mon, 14 Sep 2026 09:00:00 +0300A 1,000 m³/h cooling tower evaporates up to 12.6 m³/h and takes 16.8 m³/h of make-up. Calculating evaporation, drift and blowdown, and using less water.https://maximkrasnov.com/articles/how-to-choose-industrial-chiller/https://maximkrasnov.com/articles/how-to-choose-industrial-chiller/Thu, 10 Sep 2026 09:00:00 +0300A 1,000 kW chiller running 24/7 burns RUB 26 million of power a year. 13 selection mistakes: capacity, climate, winter duty, controls and price.https://maximkrasnov.com/articles/what-is-an-absorption-chiller/https://maximkrasnov.com/articles/what-is-an-absorption-chiller/Sun, 06 Sep 2026 09:00:00 +0300An absorption chiller draws 5–10 kW per 1 MW of cooling; the rest is heat from 80 °C or gas. How it works, its types, and when it beats a compressor chiller.https://maximkrasnov.com/articles/how-to-choose-industrial-cooling-tower/https://maximkrasnov.com/articles/how-to-choose-industrial-cooling-tower/Wed, 02 Sep 2026 09:00:00 +0300An open cooling tower on a 1,000 m³/h loop takes up to 16.8 m³/h of make-up; a closed one keeps the loop clean. Choosing by temperature, water, climate, noise.https://maximkrasnov.com/articles/what-is-a-chiller/https://maximkrasnov.com/articles/what-is-a-chiller/Mon, 31 Aug 2026 09:00:00 +0300A chiller cools water or glycol, e.g. from 12 to 7 °C, giving 2.4–6.9 kW of cooling per 1 kW of power. Main parts, the cycle step by step, layout, types.https://maximkrasnov.com/articles/what-is-a-cooling-tower/https://maximkrasnov.com/articles/what-is-a-cooling-tower/Fri, 28 Aug 2026 09:00:00 +0300A cooling tower cools water by evaporation, losing about 1% of the flow as vapor per 7 °C of cooling. How it is built, how it works, typical layouts and types.https://maximkrasnov.com/news/data-center-cooling-energy-webinar/https://maximkrasnov.com/news/data-center-cooling-energy-webinar/Tue, 04 Aug 2026 09:00:00 +0300On August 6, 2026, I will host a free online webinar on energy-efficient cooling of data centers. We start at 11:00 Moscow time (UTC+3).https://maximkrasnov.com/news/russian-data-center-week-2026/https://maximkrasnov.com/news/russian-data-center-week-2026/Tue, 31 Mar 2026 09:00:00 +0300Russian Data Center Week, one of the main events for the data-center infrastructure market in Russia, took place in Moscow.https://maximkrasnov.com/news/big-5-global-dubai/https://maximkrasnov.com/news/big-5-global-dubai/Thu, 27 Nov 2025 09:00:00 +0300From November 24 to 28, 2025, we showed Cold Energy equipment at an international trade show for the first time — Big 5 Global in Dubai. For us this is an…https://maximkrasnov.com/news/finned-tube-line-closed-cooling-towers/https://maximkrasnov.com/news/finned-tube-line-closed-cooling-towers/Thu, 20 Nov 2025 09:00:00 +0300The new line produces finned heat exchanger tubes. Fins substantially increase the heat transfer surface and make the equipment highly energy efficient.https://maximkrasnov.com/news/new-plant-investment-project/https://maximkrasnov.com/news/new-plant-investment-project/Mon, 18 Aug 2025 09:00:00 +0300As a developer and manufacturer of cooling systems, we have announced a new investment project to manufacture cooling equipment for Russian industry that…