{"id":727,"date":"2025-11-07T01:10:49","date_gmt":"2025-11-07T01:10:49","guid":{"rendered":"https:\/\/en.esplaza.com.cn\/?p=727"},"modified":"2025-11-07T01:10:49","modified_gmt":"2025-11-07T01:10:49","slug":"alfa-laval-launches-once-through-steam-generator-for-thermal-storage","status":"publish","type":"post","link":"https:\/\/en.esplaza.com.cn\/index.php\/2025\/11\/07\/alfa-laval-launches-once-through-steam-generator-for-thermal-storage\/","title":{"rendered":"Alfa Laval launches once-through steam generator for thermal storage"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Swedish heat exchange manufacturer&nbsp;<a href=\"https:\/\/www.pv-magazine.com\/2022\/02\/08\/storing-solar-power-with-grid-scale-molten-hydroxide\/\" target=\"_blank\" rel=\"noreferrer noopener\">Alfa Laval<\/a>&nbsp;has introduced a new once-through steam generator (OTSG) designed for modular thermal energy storage systems. The single-pass steam boiler is intended for use in compact, molten salt\u2013based energy storage applications.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/en.esplaza.com.cn\/wp-content\/uploads\/2025\/11\/image-17-1024x1024.png\" alt=\"\" class=\"wp-image-728\" srcset=\"https:\/\/en.esplaza.com.cn\/wp-content\/uploads\/2025\/11\/image-17-1024x1024.png 1024w, https:\/\/en.esplaza.com.cn\/wp-content\/uploads\/2025\/11\/image-17-300x300.png 300w, https:\/\/en.esplaza.com.cn\/wp-content\/uploads\/2025\/11\/image-17-150x150.png 150w, https:\/\/en.esplaza.com.cn\/wp-content\/uploads\/2025\/11\/image-17-768x768.png 768w, https:\/\/en.esplaza.com.cn\/wp-content\/uploads\/2025\/11\/image-17.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cThis OTSG, when integrated with an energy storage solution, is a perfect fit for photovoltaic power, as it can handle daily cycling,\u201d a company spokesperson said. \u201cIts compact design makes it ideal for modular thermal energy storage systems with small to medium capacities of 2 MW to 10 MW. One of its distinctive features is its ability to operate at very low loads during startup.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The once-through steam generator is constructed from carbon steel, though other materials are available upon request. In its standard configuration, it can reportedly withstand temperatures up to 400 C and pressures up to 60 bar. A 2.5 MW unit has an outer diameter of 0.6 m and a length of 6.5 m, while a 10 MW unit measures 1.3 m in diameter with the same length.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The system consists of a pressure shell containing a helical coil bundle. Feedwater enters at the bottom and flows upward through the coil, where it is sequentially preheated, evaporated, and superheated, producing saturated or superheated steam at the outlet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The heating medium \u2013 typically molten salt or thermal oil \u2013 flows on the shell side in the opposite direction, ensuring efficient counter-current heat transfer. The helical coil design provides a large heat transfer surface within a compact footprint and accommodates thermal expansion, reducing mechanical stress and improving fatigue resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cThe system combines the functions of an economizer, evaporator, superheater, and steam drum into a single, fully integrated shell\u2014delivering high thermal performance, excellent reliability, and a minimal installation footprint,\u201d the company said. \u201cIt also features an integrated water separation and recirculation system that enables stable operation at loads as low as 5%. This minimizes hold-up volume, reduces response times, and enhances overall system flexibility.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Swedish heat exchange manufacturer&nbsp;Alfa Laval&nbsp;has introduced a new once-through steam generator (OTSG) designed for modular&hellip;<\/p>\n","protected":false},"author":2,"featured_media":728,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-727","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company"],"_links":{"self":[{"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=727"}],"version-history":[{"count":1,"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/727\/revisions"}],"predecessor-version":[{"id":729,"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/727\/revisions\/729"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/media\/728"}],"wp:attachment":[{"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/en.esplaza.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}