{"id":4588,"date":"2026-09-08T01:03:38","date_gmt":"2026-09-08T08:03:38","guid":{"rendered":"https:\/\/www.26yc.com\/generator-engine-exhaust-heat-recovery\/"},"modified":"2026-10-08T23:36:08","modified_gmt":"2026-10-09T06:36:08","slug":"generator-engine-exhaust-heat-recovery","status":"publish","type":"post","link":"https:\/\/www.26yc.com\/ja\/generator-engine-exhaust-heat-recovery\/","title":{"rendered":"\u767a\u96fb\u6a5f\u30fb\u30a8\u30f3\u30b8\u30f3\u6392\u6c17\u71b1\u56de\u53ce\uff08\u7a7a\u6c17\uff0d\u7a7a\u6c17\u30b3\u30a2\uff09"},"content":{"rendered":"<p>Standby diesel and gas generators, and indeed any continuous industrial engine, convert only part of their fuel into electricity or shaft work; a large share leaves as hot exhaust, often 400 to 600 degrees C, and as jacket and coolant heat. For a generator set running even a few thousand hours a year, that exhaust is a free, steady heat source that is usually just thrown away up the stack. An air-to-air recovery core in the exhaust stream can reclaim a useful fraction of that energy as warm make-up or combustion air, trimming the building&#8217;s heating load or pre-heating the engine&#8217;s own intake. This article covers how much energy is available, why material choice dominates the design, and how air-to-air recovery fits alongside water-loop combined heat and power.<\/p>\n<h2>The energy available<\/h2>\n<p>A reciprocating or turbine engine exhaust carries a substantial portion of the fuel&#8217;s lower heating value, commonly 25 to 35 percent, as sensible enthalpy in the hot gases. Recovering even part of that as warm air is valuable because it arrives at a temperature high enough to preheat ventilation or process make-up air directly, with no secondary fluid loop. A <a href=\"https:\/\/www.26yc.com\/ja\/industrial-heat-recovery-guide-en\/\">\u3088\u308a\u5e83\u7bc4\u306a\u7523\u696d\u56de\u53ce\u306e\u773a\u671b<\/a> puts this in context with other process streams, but the engine exhaust is special because it is hot, continuous and predictable. The recovered energy shows up as reduced gas or electric heating elsewhere on site, and the simple payback tracks the engine&#8217;s run hours: the more it runs, the faster the core pays for itself.<\/p>\n<h2>Core material<\/h2>\n<p>\u6e29\u6392\u6c17\u306f\u307e\u305f\u8150\u98df\u6027\u3067\u3042\u308a\u3001\u30c7\u30a3\u30fc\u30bc\u30eb\u306b\u3064\u3044\u3066\u306f\u3059\u3059\u3068\u786b\u9ec4\u5316\u5408\u7269\u3092\u542b\u3080\u305f\u3081\u3001\u30b3\u30a2\u6750\u6599\u304c\u88c5\u7f6e\u304c5\u5e74\u304b5\u304b\u6708\u6301\u3064\u304b\u3092\u6c7a\u3081\u308b\u3002\u30a2\u30eb\u30df\u30d7\u30ec\u30fc\u30c8\u306f\u5b89\u4fa1\u3067\u52b9\u7387\u7684\u3060\u304c\u6e29\u5ea6\u4e0a\u9650\u306f\u7d04250\u301c300\u2103\u3067\u3001\u5178\u578b\u7684\u306a\u30a8\u30f3\u30b8\u30f3\u6392\u6c17\u3088\u308a\u306f\u308b\u304b\u306b\u4f4e\u304f\u3001\u5916\u6c17\u3067\u5927\u5e45\u306b\u5e0c\u91c8\u3055\u308c\u306a\u3044\u9650\u308a\u6025\u901f\u306b\u6545\u969c\u3059\u308b\u3002\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\uff08304\u307e\u305f\u306f316\uff09\u306f\u6e29\u5ea6\u3068\u5316\u5b66\u306b\u8010\u3048\u3001\u30a8\u30f3\u30b8\u30f3\u304a\u3088\u3073\u767a\u96fb\u6a5f\u6392\u6c17\u56de\u53ce\u306e\u6a19\u6e96\u9078\u629e\u3067\u3042\u308a\u3001\u6700\u3082\u904e\u9177\u306a\u7528\u9014\u306b\u306f\u30b8\u30e5\u30d7\u30ec\u30c3\u30af\u30b9\u307e\u305f\u306f\u305d\u308c\u4ee5\u4e0a\u306e\u5408\u91d1\u3092\u7528\u3044\u308b\u3002\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306f\u30b3\u30b9\u30c8\u3068\u308f\u305a\u304b\u306a\u91cd\u91cf\u3060\uff1b\u30b9\u30c6\u30f3\u30ec\u30b9\u306f\u30a2\u30eb\u30df\u3088\u308a\u9ad8\u4fa1\u3060\u304c\u3001\u305d\u308c\u306f\u751f\u5b58\u3059\u308b\u30b3\u30a2\u3068\u6eb6\u3051\u308b\u30b3\u30a2\u306e\u9055\u3044\u3067\u3042\u308b\u3002\u6975\u3081\u3066\u904e\u9177\u307e\u305f\u306f\u9ad8\u6e29\u306e\u7528\u9014\u306b\u306f\u3001\u4e00 <a href=\"https:\/\/www.26yc.com\/ja\/heat-exchanger-material-selection\/\">\u6750\u6599\u9078\u629e\u30ac\u30a4\u30c9<\/a> \u5408\u91d1\u3092\u6392\u6c17\u5316\u5b66\u306b\u5408\u308f\u305b\u308b\u624b\u52a9\u3051\u3092\u3059\u308b\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6750\u6599<\/th>\n<th>\u6e29\u5ea6\u4e0a\u9650<\/th>\n<th>\u8010\u98df\u6027<\/th>\n<th>\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30a2\u30eb\u30df\u30cb\u30a6\u30e0<\/td>\n<td>\u301c250\u301c300\u2103<\/td>\n<td>\u6392\u6c17\u4e2d\u306f\u4f4e<\/td>\n<td>\u5e0c\u91c8\u3055\u308c\u305f\u51b7\u305f\u3044\u6c17\u6d41\u306e\u307f<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30c6\u30f3\u30ec\u30b9304<\/td>\n<td>\u301c600\u2103<\/td>\n<td>\u826f\u597d<\/td>\n<td>\u4e00\u822c\u7684\u306a\u30a8\u30f3\u30b8\u30f3\u6392\u6c17<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30c6\u30f3\u30ec\u30b9316<\/td>\n<td>\u301c700\u2103<\/td>\n<td>\u3088\u308a\u826f\u597d\uff08\u30e2\u30ea\u30d6\u30c7\u30f3\uff09<\/td>\n<td>\u786b\u9ec4\u30fb\u6d77\u6d0b\u30fb\u904e\u9177\u7528\u9014<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30e5\u30d7\u30ec\u30c3\u30af\u30b9\uff0f\u7279\u6b8a<\/td>\n<td>~800\u2103\u4ee5\u4e0a<\/td>\n<td>\u9ad8<\/td>\n<td>\u904e\u9177\u306a\u9023\u7d9a\u904b\u8ee2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>CHP context<\/h2>\n<p>\u7a7a\u6c17\u5bfe\u7a7a\u6c17\u71b1\u56de\u53ce\u306f\u3001\u672c\u683c\u7684\u306a\u71b1\u96fb\u806f\u7523(CHP)\u306e\u8eab\u8fd1\u306a\u5144\u5f1f\u5206\u3067\u3042\u308b\u3002\u6c34\u30eb\u30fc\u30d7\u5f0fCHP\u30d7\u30e9\u30f3\u30c8\u306f\u6392\u71b1\u3068\u30b8\u30e3\u30b1\u30c3\u30c8\u71b1\u3092\u6c34\u529b\u56de\u8def\u306b\u53d6\u308a\u8fbc\u307f\u3001\u7a7a\u9593\u6696\u623f\u3084\u30d7\u30ed\u30bb\u30b9\u52a0\u71b1\u306b\u4f7f\u3046\u3002\u4e00\u65b9\u3001\u7a7a\u6c17\u5bfe\u7a7a\u6c17\u30b3\u30a2\u306f\u6392\u6c17\u30a8\u30f3\u30bf\u30eb\u30d4\u30fc\u306e\u4e00\u90e8\u3092\u6e29\u98a8\u3068\u3057\u3066\u76f4\u63a5\u56de\u53ce\u3057\u3001\u6c34\u3082\u30dd\u30f3\u30d7\u3082\u51cd\u7d50\u306e\u5fc3\u914d\u3082\u306a\u3044\u3002\u4e21\u8005\u306f\u7af6\u5408\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u304f\u88dc\u5b8c\u95a2\u4fc2\u306b\u3042\u308b\u3002\u591a\u304f\u306e\u30b5\u30a4\u30c8\u306f\u4e3b\u8981\u306a\u6696\u623f\u8ca0\u8377\u306b\u6c34\u30eb\u30fc\u30d7\u5f0fCHP\u3092\u7a3c\u50cd\u3057\u3001\u6c34\u30eb\u30fc\u30d7\u304c\u5c4a\u304d\u306b\u304f\u3044\u71c3\u713c\u7528\u307e\u305f\u306f\u63db\u6c17\u7528\u7a7a\u6c17\u3092\u4e88\u71b1\u3059\u308b\u305f\u3081\u306b\u7a7a\u6c17\u5bfe\u7a7a\u6c17\u30b3\u30a2\u3092\u8ffd\u52a0\u3059\u308b\u3002\u7a7a\u6c17\u5bfe\u7a7a\u6c17\u65b9\u5f0f\u306f\u65e2\u8a2d\u306e\u767a\u96fb\u6a5f\u306b\u5f8c\u4ed8\u3051\u3059\u308b\u306e\u3082\u683c\u6bb5\u306b\u5b89\u304f\u3001\u51b7\u5374\u7cfb\u7d71\u306b\u89e6\u308c\u305a\u306b\u6392\u6c17\u30b9\u30bf\u30c3\u30af\u3068\u88dc\u7d66\u7a7a\u6c17\u30c0\u30af\u30c8\u306b\u305d\u306e\u307e\u307e\u7d44\u307f\u8fbc\u3081\u308b\u3002\u6392\u6c17\u304c\u9ad8\u6e29\u3067\u88dc\u7d66\u7a7a\u6c17\u304c\u4f4e\u6e29\u306e\u6a5f\u68b0\u5ba4\u3067\u306f\u3001 <a href=\"https:\/\/www.26yc.com\/ja\/plate-heat-exchangers-guide-en\/\">\u30d7\u30ec\u30fc\u30c8\u30b3\u30a2<\/a> \u65e2\u8a2d\u30d7\u30e9\u30f3\u30c8\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u6700\u3082\u65e9\u304f\u5b9f\u3092\u7d50\u3076\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n<h2>Specify engine recovery with QIYU<\/h2>\n<p>QIYU\u306f\u767a\u96fb\u6a5f\u304a\u3088\u3073\u30a8\u30f3\u30b8\u30f3\u306e\u6392\u6c17\u7528\u306b\u30b9\u30c6\u30f3\u30ec\u30b9\u88fd\u306e\u7a7a\u6c17\u5bfe\u7a7a\u6c17\u71b1\u56de\u53ce\u30b3\u30a2\u3092\u88fd\u9020\u3057\u3066\u304a\u308a\u3001\u9ad8\u6e29\u3068\u8150\u98df\u6027\u306e\u71c3\u713c\u6392\u30ac\u30b9\u306b\u5bfe\u5fdc\u3057\u3001\u6392\u6c34\u30fb\u6e05\u6383\u53ef\u80fd\u306a\u30d7\u30ec\u30fc\u30c8\u30d1\u30c3\u30af\u3092\u5099\u3048\u308b\u3002\u6392\u6c17\u6d41\u91cf\u3001\u6e29\u5ea6\u3001\u7a3c\u50cd\u6642\u9593\u3092\u304a\u77e5\u3089\u305b\u3044\u305f\u3060\u3051\u308c\u3070 <a href=\"https:\/\/www.26yc.com\/ja\/contact-us\/\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \u30b5\u30a4\u30b8\u30f3\u30b0\u898b\u7a4d\u3082\u308a\u306b\u3064\u3044\u3066\u3002WhatsApp +86 15753355505\u3001\u7c73\u56fd\u96fb\u8a71 +1 915 295-3666\u3001\u307e\u305f\u306f\u30e1\u30fc\u30eb kuns913@gmail.com \u3067\u694a\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u307e\u3067\u3054\u9023\u7d61\u304f\u3060\u3055\u3044\u3002\u9069\u5207\u306a\u30e2\u30c7\u30eb\u9078\u629e\u3084\u30ab\u30b9\u30bf\u30e0\u56de\u53ce\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u8a2d\u8a08\u3092\u304a\u624b\u4f1d\u3044\u3057\u307e\u3059\u3002<\/p>\n<div class=\"yc-related\">\n<h3>\u95a2\u9023\u8a18\u4e8b<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.26yc.com\/ja\/industrial-oven-cure-oven-heat-recovery\/\">\u786c\u5316\u30fb\u7523\u696d\u7528\u30aa\u30fc\u30d6\u30f3\u306e\u71b1\u56de\u53ce\uff1a\u5faa\u74b0\u7a7a\u6c17\u3068\u88dc\u7d66\u7a7a\u6c17\u306e\u6bd4\u8f03<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/ja\/data-center-support-space-heat-recovery\/\">\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u88dc\u52a9\u7a7a\u9593\u306e\u71b1\u56de\u53ce\uff1a\u30aa\u30d5\u30a3\u30b9\u3001\u7814\u7a76\u5ba4\u3001\u8377\u634c\u304d\u5834<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/ja\/hr-vs-erv-differences\/\">HRV\u3068ERV\uff1a\u5efa\u7269\u306e\u5feb\u9069\u6027\u3092\u6c7a\u3081\u308b\u9055\u3044<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/ja\/cold-storage-heat-recovery\/\" title=\"Cold Storage and Freezer Heat Recovery: Trickling Warm Air Back In\">Cold Storage and Freezer Heat Recovery: Trickling Warm Air Back In<\/a><\/li>\n<li><a href=\"https:\/\/www.26yc.com\/ja\/greenhouse-heat-recovery\/\" title=\"\u6e29\u5ba4\u306e\u71b1\u56de\u53ce\uff1a\u6696\u623f\u8cbb\u524a\u6e1b\u306e\u305f\u3081\u306e\u6e29\u6392\u6c17\u30ea\u30b5\u30a4\u30af\u30eb\">\u6e29\u5ba4\u306e\u71b1\u56de\u53ce\uff1a\u6696\u623f\u8cbb\u524a\u6e1b\u306e\u305f\u3081\u306e\u6e29\u6392\u6c17\u30ea\u30b5\u30a4\u30af\u30eb<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 class=\"yc-faq-title\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<p class=\"yc-faq\"><strong>Q: How much energy is in engine exhaust?<\/strong><br \/>Reciprocating or turbine engine exhaust carries a large share of the fuel lower heating value, commonly 25 to 35 percent, as sensible enthalpy in gases often at 400 to 600 degrees C.<\/p>\n<p class=\"yc-faq\"><strong>Q: Why does material choice dominate?<\/strong><br \/>At those temperatures the core material and any coating must survive continuous high heat and thermal cycling, so alloy selection and spacing decide both life and pressure drop.<\/p>\n<p class=\"yc-faq\"><strong>Q: Where does the recovered heat go?<\/strong><br \/>The warm air preheats ventilation or process make-up air directly, or pre-heats the engine intake, trimming site gas or electric heating with no secondary fluid loop.<\/p>\n<p class=\"yc-faq\"><strong>Q: How does it compare with water-loop CHP?<\/strong><br \/>Air-to-air recovery is simpler and needs no water circuit, but captures less of the total waste heat than a water-loop combined heat and power system; the two are often complementary.<\/p>","protected":false},"excerpt":{"rendered":"<p>Standby diesel and gas generators, and indeed any continuous industrial engine, convert only part of their fuel into electricity or shaft work; a large share leaves as hot exhaust, often 400 to 600 degrees C, and as jacket and coolant heat. For a generator set running even a few thousand hours a year, that exhaust [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[183,162,172],"class_list":["post-4588","post","type-post","status-publish","format-standard","hentry","category-industrial","tag-air-to-air","tag-heat-recovery","tag-waste-heat-recovery"],"_links":{"self":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts\/4588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/comments?post=4588"}],"version-history":[{"count":3,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts\/4588\/revisions"}],"predecessor-version":[{"id":5065,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/posts\/4588\/revisions\/5065"}],"wp:attachment":[{"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/media?parent=4588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/categories?post=4588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.26yc.com\/ja\/wp-json\/wp\/v2\/tags?post=4588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}