{"id":10094,"date":"2021-04-13T12:17:26","date_gmt":"2021-04-13T19:17:26","guid":{"rendered":"http:\/\/electratherm-us.com\/?p=10094"},"modified":"2025-01-08T10:40:13","modified_gmt":"2025-01-08T15:40:13","slug":"what-is-cooling-to-power","status":"publish","type":"post","link":"https:\/\/electratherm.com\/vi\/what-is-cooling-to-power\/","title":{"rendered":"\u201cL\u00e0m m\u00e1t \u0111\u1ec3 t\u0103ng n\u0103ng su\u1ea5t\u201d l\u00e0 g\u00ec?"},"content":{"rendered":"<section class=\"l-section wpb_row height_medium\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>Rankine Cycle and Organic Rankine Cycle<br \/><\/strong>Waste heat is a vast, underutilized, and sustainable source of energy that is often overlooked due to the costs involved with capturing and converting that heat into electricity. Rankine cycle (RC) systems have been used for decades to generate clean electricity from heat, however these systems are restricted to sources of high-temperature heat such as found at large power plants, industrial complexes, and large geothermal sources.<\/p>\n<p>With the development of Organic Rankine Cycle (ORC) technology, a refinement of the Rankine Cycle, there is now the ability to capture and convert lower-temperature heat into electricity. The main difference between the two cycles is that RC\u2019s use steam to produce power while ORC\u2019s convert an organic working fluid, which has a boiling point less than that of water, into vapor to produce power. This differentiating factor makes for much smaller systems, allowing lower temperature heat sources \u2013 such as engine waste heat and process heat \u2013 be used to generate emission-free electricity.<\/p>\n<p>\u00a0<\/p>\n<p><strong>Screw Expander vs. Turbine Technologies<br \/><\/strong>However, not all ORC systems are created equal. There are those that use a turbine as their power generator whilst others use a screw expander. There are advantages and disadvantages of each system which will be briefly discussed here, however, it is important to note that net-zero cooling to power technology is a solution predominantly utilizing screw expander technology.<\/p>\n<p>Turbine systems are generally suitable for stable heat streams with constant load. They offer a slight increase in efficiency over expanders due to less friction loss and extremely high operating speeds. However, with blades spinning at such high speeds, turbine systems are at increased risk of being damaged by liquid impingement, or the formation of liquid drops in the pressurized vapor. As a result, this cycle requires superheated vapor throughout the process to avoid condensation, which may occur due to a drop in pressure. If this occurs the blades could be badly damaged and must be replaced. This creates an issue with smaller, more variable heat sources. If the turbine cannot maintain superheat inlet parameters, the system will have to shut down or go on bypass to avoid damage.<\/p>\n<p>As indicated above, while a turbine system may be ideal for higher temperature heat sources with a consistent flow, they tend to be unsuitable for many waste heat recovery opportunities that screw expander systems are able to capitalize on due to their superior transient operation capabilities.<\/p>\n<p>Screw expanders are more compact, cost-efficient, and robust compared to turbine systems. Their design results in lower operating speeds, quieter operation, and less maintenance. Since the system is operating at much lower speeds, it experiences less pressure on the pump leading to reduced maintenance costs and easier operation. The robustness of an expander allows it to tolerate \u201cwet\u201d dual-phase flow caused by incomplete phase change of the working fluid. This makes screw expanders better equipped for transient operation, allowing the system to reliably generate power from heat sources with fluctuations in thermal input, both temperature, and flow. Additionally, expander systems have a far superior turndown ratio, with leading systems able to operate everywhere from 5 kW up to 125 kW.<\/p>\n<p>ORC systems incorporating a twin-screw expander are not only more affordable and reliable but are more suited for low temperature waste heat recovery where heat availability is variable and are particularly well suited for net-zero cooling applications.<\/p>\n<p>\u00a0<\/p>\n<p><strong>The Potential of Waste Heat<br \/><\/strong>Power generation and industrial processes, amongst other sectors, lose a great deal of their applied energy as heat \u2013 which in many cases can be in excess of 50%. This lost energy is commonly known as waste heat. For internal combustion engines, waste heat is rejected through the engine jacket water system and exhaust gases. With that said, there are many different sectors with different forms of waste heat. Providing the waste heat can be harvested and converted into a fluid heat source through the use of heat exchangers, an ORC system can be integrated to recycle that heat into clean, green electricity.<\/p>\n<p>The heat produced as a byproduct in these processes can either be friend or foe, depending on how one approaches the situation. Take combustion engines (or gensets) for example. Engines see extensive use around the world, from remote power generation, marine propulsion, and anaerobic digestion to LFG production and gas compression. Regardless of their use, engines generate substantial amounts of heat. This heat is a waste of thermal energy and steals valuable power from the engine for cooling. Waste heat and the parasitic cooling load amount to a large portion of the energy lost in power generation processes.<\/p>\n<p>Modern ORC systems can convert heat sources as low as 70\u00b0C into clean power. These new systems have undergone many years of development to ensure they are more cost-efficient, robust, and reliable than ORC systems of the past. Today\u2019s sophisticated, yet simple, technology has become a reoccurring area of interest when it comes to energy efficiency and sustainability. The potential for heat recovery from low temperature sources opens opportunities for businesses both small and large to take advantage of their waste heat to achieve greater energy efficiencies and improve their bottom line while taking steps to better the planet.<\/p>\n<p>\u00a0<\/p>\n<p><strong>What is \u201cCooling To Power\u201d?<br \/><\/strong>Cooling to power refers to an ORC units\u2019 ability to act as a combined cooling and power generator, providing a net-zero cooling solution that generates power as a secondary function when the cooling load is not at peak demand. Cooling to power is an effective means of increasing energy efficiency due to ORC systems consuming the waste heat as fuel, which significantly reduces the cooling load (70-100%). This means in addition to generating emission-free power, the parasitic cooling load also is reduced or even eliminated, further reducing costs and increasing efficiency.<\/p>\n<p>As the heat load is reduced, this allows cooling to power systems to prioritize the generation of clean electricity. When the cooling load increases the system will automatically adjust power output to fulfill engine cooling requirements, maintaining engine cooling independent of the generator\u2019s operating status. In rare occurrences, during peak demand, the ORC expander is bypassed completely and the system will prioritize full-load cooling. This is the only time the system will consume power that is not its own.<\/p>\n<p>Essentially, cooling to power technology provides a highly efficient, self-powered radiator that pays for itself through the generation of power. While traditional cooling systems (radiators \/ cooling towers) consume power to provide cooling, cooling to power systems consume heat to provide cooling as well as power. This provides a cooling solution with a positive net present value (NPV) opposed to a negative NPV.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>Quick Numbers<br \/><\/strong>If electricity rates in an area are $0.10\/kWh and a radiator experiences 8,000 hours of operation annually while consuming 8 kW \u2013 that amounts to 64 MWh annually valued at $6,400. If the radiator were replaced with a cooling to power system, such as ElectraTherm\u2019s Active Cooler, and produced an average of 40 kW while displacing the previous demand of 8 kW \u2013 that is 48 kW of newly available electricity, or 384 MWh annually valued at $38,400. Over a 20-year period, all variables consistent, the Active Cooler would boost revenue by $768,000 while a standard radiator would cost $128,000.<\/p>\n<p>Previous case studies that have demonstrated the ability of cooling to power technology have seen efficiency increases in the 5% range \u2013 a small number that makes a big impact on businesses\u2019 bottom line and the environment.<\/p>\n<p>\u00a0<\/p>\n<p><strong>Economic and Environmental Implications<br \/><\/strong>Increasing energy efficiency is the single easiest step in pursuing a carbon-neutral future. Using an existing resource &#8211; heat &#8211; to provide power and cooling reduces fossil fuel consumption and reliance on the grid. ORC power generation is a sustainable technology that reduces the amount of energy consumed (fuel) and energy wasted (heat). Energy efficiency will always play a role in combatting climate change because no matter the process, the more efficient it is, the less impact it has on the planet.<\/p>\n<p>With the reliability and cost-effectiveness of modern systems, waste heat recovery solutions such as cooling to power are both profitable and practical. With the world eyeing ways to shift toward clean energy and with the help of incentives promoting sustainability like the Consolidated Appropriations Act 2021, cooling to power is primed to be a disruptive technology in the energy efficiency and commercial cooling market \u2013 effectively changing the way corporations see and use waste heat.<\/p>\n<p>\u00a0<\/p>\n<p><strong>\u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u00e0 xem s\u1ea3n ph\u1ea9m c\u1ee7a ElectraTherm c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi b\u1ea1n kh\u00f4ng, h\u00e3y truy c\u1eadp\u00a0<a href=\"https:\/\/electratherm.com\/vi\/cac-san-pham\/\" target=\"_blank\" rel=\"noopener\"><u>trang s\u1ea3n ph\u1ea9m<\/u><\/a>\u00a0ho\u1eb7c\u00a0<a href=\"https:\/\/electratherm.com\/vi\/lien-he\/\" target=\"_blank\" rel=\"noopener\"><u>li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/u><\/a>.<\/strong><\/p>\n<p><strong>\u0110\u1ec3 c\u1eadp nh\u1eadt th\u00f4ng tin v\u1ec1 ElectraTherm v\u00e0 tin t\u1ee9c m\u1edbi nh\u1ea5t v\u1ec1 nhi\u1ec7t th\u1ea3i, h\u00e3y \u0111\u0103ng k\u00fd nh\u1eadn b\u1ea3n tin c\u1ee7a ch\u00fang t\u00f4i <a href=\"https:\/\/electratherm.com\/vi\/email-sign-up\/\" target=\"_blank\" rel=\"noopener\"><u>\u0111\u00e2y<\/u><\/a>.<\/strong><\/p>\n<p><span style=\"color: #3aaa35;\"><strong>Gi\u1edbi thi\u1ec7u v\u1ec1 ElectraTherm<\/strong><\/span><\/p>\n<p>ElectraTherm c\u1ee7a BITZER Group cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p thu h\u1ed3i nhi\u1ec7t th\u1ea3i \u0111\u1eb3ng c\u1ea5p th\u1ebf gi\u1edbi b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Chu tr\u00ecnh Rankine h\u1eefu c\u01a1 c\u00f9ng v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 \u0111\u1ed9c quy\u1ec1n \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 th\u1ea5p th\u00e0nh n\u0103ng l\u01b0\u1ee3ng s\u1ea1ch. C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a ElectraTherm t\u1ea1o ra \u0111i\u1ec7n s\u1ea1ch, t\u0103ng hi\u1ec7u su\u1ea5t, gi\u1ea3m chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i - m\u00e0 kh\u00f4ng ti\u00eau th\u1ee5 th\u00eam nhi\u00ean li\u1ec7u. \u0110\u00e3 v\u1eadn chuy\u1ec3n h\u01a1n 100 \u0111\u01a1n v\u1ecb ORC \u0111\u1ebfn h\u01a1n 13 qu\u1ed1c gia v\u1edbi h\u01a1n 2.000.000 gi\u1edd ho\u1ea1t \u0111\u1ed9ng, ElectraTherm l\u00e0 c\u00f4ng ty h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi v\u1ec1 thu h\u1ed3i nhi\u1ec7t th\u1ea3i quy m\u00f4 nh\u1ecf.<\/p>\n<p>L\u1ee3i th\u1ebf k\u1ebft h\u1ee3p gi\u1eefa k\u1ef9 thu\u1eadt c\u1ee7a ElectraTherm c\u00f9ng v\u1edbi gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi BITZER, nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e1y n\u00e9n l\u1ea1nh \u0111\u1ed9c l\u1eadp l\u1edbn nh\u1ea5t th\u1ebf gi\u1edbi v\u1edbi g\u1ea7n 3.500 nh\u00e2n vi\u00ean tr\u00ean to\u00e0n c\u1ea7u v\u00e0 doanh s\u1ed1 b\u00e1n h\u00e0ng trung b\u00ecnh h\u00e0ng n\u0103m \u0111\u1ea1t g\u1ea7n $1 t\u1ef7, cho ph\u00e9p nh\u00f3m ElectraTherm ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 ORC h\u00e0ng \u0111\u1ea7u trong ng\u00e0nh, mang l\u1ea1i l\u1ee3i \u00edch cho c\u1ea3 doanh nghi\u1ec7p v\u00e0 h\u00e0nh tinh.<\/p>\n<p>c\u1ee7a ElectraTherm\u00a0<a href=\"https:\/\/electratherm.com\/vi\/may-phat-dien\/\">M\u00e1y ph\u00e1t \u0111i\u1ec7n Power+<\/a> l\u00e0 gi\u1ea3i ph\u00e1p nhi\u1ec7t th\u00e0nh \u0111i\u1ec7n, chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t th\u1ea3i th\u00e0nh \u0111i\u1ec7n s\u1ea1ch v\u00e0 nhi\u1ec7t c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c. <a href=\"https:\/\/electratherm.com\/vi\/active-cooler\/\">M\u00e1y l\u00e0m m\u00e1t ch\u1ee7 \u0111\u1ed9ng<\/a> \u0111\u00f3ng vai tr\u00f2 l\u00e0 gi\u1ea3i ph\u00e1p l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng \u0111\u1ec3 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng, s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t quy tr\u00ecnh ORC \u0111\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng l\u00e0m m\u00e1t t\u1ef1 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng trong khi t\u1ea1o ra \u0111i\u1ec7n. C\u1ea3 hai gi\u1ea3i ph\u00e1p c\u1ee7a ElectraTherm \u0111\u1ec1u gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i v\u00e0 chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng trong khi cung c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n\/l\u00e0m m\u00e1t c\u01a1 b\u1ea3n. T\u1eadn d\u1ee5ng nhi\u1ec7t th\u1ea3i kh\u00f4ng ch\u1ec9 c\u00f3 l\u1ee3i nhu\u1eadn m\u00e0 c\u00f2n thi\u1ebft th\u1ef1c. Cho ph\u00e9p c\u00e1c c\u00f4ng ty h\u01b0\u1edfng l\u1ee3i t\u1eeb n\u1ec1n kinh t\u1ebf tu\u1ea7n ho\u00e0n h\u01a1n trong khi v\u1eabn \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c m\u1ee5c ti\u00eau ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>","protected":false},"excerpt":{"rendered":"<p>Khi t\u1ea3i nhi\u1ec7t gi\u1ea3m, \u0111i\u1ec1u n\u00e0y cho ph\u00e9p l\u00e0m m\u00e1t \u0111\u1ec3 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho h\u1ec7 th\u1ed1ng \u01b0u ti\u00ean t\u1ea1o ra \u0111i\u1ec7n s\u1ea1ch. Khi t\u1ea3i l\u00e0m m\u00e1t t\u0103ng, h\u1ec7 th\u1ed1ng s\u1ebd t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng su\u1ea5t \u0111\u1ea7u ra \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u l\u00e0m m\u00e1t \u0111\u1ed9ng c\u01a1, duy tr\u00ec l\u00e0m m\u00e1t \u0111\u1ed9ng c\u01a1 \u0111\u1ed9c l\u1eadp v\u1edbi tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n.<\/p>","protected":false},"author":75,"featured_media":10116,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[105,106],"class_list":["post-10094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-highlights","tag-home"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is &quot;Cooling to Power&quot;? - ElectraTherm<\/title>\n<meta name=\"description\" content=\"ElectraTherm&#039;s net-zero cooling to power solution, the Active Cooler, is a radiator alternative that has the ability to generate electricity.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/electratherm.com\/vi\/what-is-cooling-to-power\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is &quot;Cooling to Power&quot;? 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