New Rosenberg I-Series backward-curved impeller design increases airflow and efficiency, cuts noise by half

StreetInsider04-18

Rosenberg's new high-efficiency, high-volume I-impeller fan design features five backward-curved, hollow profiled, airfoil section aluminum blades, with an efficiency-optimized circumferential ...

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Depending on fan size and operating point, the new impeller increases efficiencies by up to 11% while reducing noise levels by more than half.Noise levels range from a high of just 89 dB to a low of 68 dB while creating up to 12% more airflow than earlier models.I-series blades are positioned diagonally and top-flared so that airflow direction is optimized for the highest efficiency and flow rates. The new design significantly reduces the turbulent downstream air produced by traditional backward-curved impellers. The effect of this reduction is to significantly reduce noise and increase in-application efficiency. The I-impeller is statically and dynamically balanced according to DIN ISO 21940. Noise levels range from a high of just 89 dB to a low of 68 dB while creating up to 12% more a","collect":0,"end_time":0,"defaultTopTitle":"streetinsider.com","property":[],"viewcount":null,"language":"en","relate_stocks":{"IE0002270589.USD":"LEGG MASON CLEARBRIDGE VALUE \"A\" (USD) INC","EQC":"Equity Commonwealth","UPS":"联合包裹","LU0061475181.USD":"THREADNEEDLE (LUX) AMERICAN \"AU\" (USD) ACC","IE00BFSS8Q28.SGD":"Janus Henderson Balanced A Inc SGD-H","LU1074936037.SGD":"JPMorgan Funds - US Value A (acc) SGD","LU0149725797.USD":"汇丰美国股市经济规模基金","LU2133065610.SGD":"JPMorgan Investment Funds - Global Dividend A (mth) SGD","BK4223":"办公室房地产信托","LU1585245621.USD":"EASTSPRING INV GLOBAL LOW VOLATILITY EQUITY FUND \"A\" (USD) ACC B","BK4532":"文艺复兴科技持仓","LU0211331839.USD":"FRANKLIN MUTUAL GLB DISCOVERY \"A\" (USD) ACC","IE00B7KXQ091.USD":"Janus Henderson Balanced A Inc USD","BK4194":"办公房地产投资信托","IE00BFSS7M15.SGD":"Janus Henderson Balanced A Acc SGD-H","BK4534":"瑞士信贷持仓","BK4585":"ETF&股票定投概念","IE00B19Z3581.USD":"Legg Mason ClearBridge - Value A Acc USD","IE00BJJMRX11.SGD":"Janus Henderson Balanced A Acc SGD","LU0208291251.USD":"FRANKLIN MUTUAL U.S. VALUE \"A\" (USD) INC","LU1162221912.USD":"FRANKLIN INCOME \"A\" (USD) ACC","IE00B19Z3B42.SGD":"Legg Mason ClearBridge - Value A Acc SGD","IE00BJJMRY28.SGD":"Janus Henderson Balanced A Inc SGD","BK4559":"巴菲特持仓","BK4550":"红杉资本持仓","BK4588":"碎股","BK4131":"航空货运与物流","IE00B7SZLL34.SGD":"Legg Mason ClearBridge - Value A Acc SGD-H","LU2237438978.USD":"Amundi Funds US Pioneer A2 (C) USD","LU0320765646.SGD":"FTIF - Franklin Income A MDIS SGD-H1","IE0004445015.USD":"JANUS HENDERSON BALANCED \"A2\" (USD) ACC","LU0320765489.SGD":"FTIF - Franklin Mutual US Value A Acc SGD","LU0070302665.USD":"FRANKLIN MUTUAL U.S. VALUE \"A\" (USD) ACC","LU1430594728.SGD":"Eastspring Investments - Global Low Volatility Equity AS SGD"},"translate_title":"新的罗森博格I系列后弯叶轮设计增加了气流和效率，噪音降低了一半","themeId":null,"isJumpTheme":false,"ttsUrl":null,"symbols_score_info":{"UPS":1,"EQC":1},"content_text":"Rosenberg's new high-efficiency, high-volume I-impeller fan design features five backward-curved, hollow profiled, airfoil section aluminum blades, with an efficiency-optimized circumferential diffuser. Depending on fan size and operating point, the new impeller increases efficiencies by up to 11% while reducing noise levels by more than half.\nCHARLOTTE, N.C., April 18, 2024 /PRNewswire-PRWeb/ -- Rosenberg's new high-efficiency, high-volume I-impeller fan design features five backward-curved, hollow profiled, airfoil section aluminum blades, with an efficiency-optimized circumferential diffuser. Depending on fan size and operating point, the new impeller increases efficiencies by up to 11% while reducing noise levels by more than half compared to older impellers.\nNoise levels range from a high of just 89 dB to a low of 68 dB while creating up to 12% more airflow than earlier models.I-series blades are positioned diagonally and top-flared so that airflow direction is optimized for the highest efficiency and flow rates. The new design significantly reduces the turbulent downstream air produced by traditional backward-curved impellers. The effect of this reduction is to significantly reduce noise and increase in-application efficiency. The I-impeller is statically and dynamically balanced according to DIN ISO 21940. Noise levels range from a high of just 89 dB to a low of 68 dB while creating up to 12% more airflow than earlier models.\nI-Series impellers are available on Rosenberg Gen3 and Gen3+ EC motors operating with up to 7.2 kW of power input.\nStandard motor features include:\nIntegrated inspection LED to visualize motor condition. It is visible from the outside through the composite material of the cover of the motor.Improved ModBus RTU functionality. The motor not only measures its current power consumption, but also continuously records total energy consumption. This makes it easier to evaluate the operating conditions of the selected fan and simplifies preventive maintenance.Electronic Quick Change Technology (EQC). For replacement or preventive maintenance, it is possible to change the electronic head within minutes and without touching other parts of the fan.IT-network (Earthing system) support. IT-network is a configuration of the power grid often used in hospitals and data centers for increasing system fault tolerance.280-680 VDC-Supply. The use of DC voltage becomes more and more common in data centers, due to failure safety and overall design considerations.For more information, or to place an order, contact Rosenberg USA by phone at (704) 893-0883; fax (704) 882-0755 or e-mail [email protected]. \nAbout Rosenberg\nThe Rosenberg family of companies is headquartered in Künzelsau, Germany and employs more than 1,400 individuals worldwide. Rosenberg fans and blowers can be found in HVAC systems, as well as industrial and portable air conditioning; in air cooling for variable frequency drives (VFD), wind power generators and power converters, solar inverters, uninterruptable power supplies (UPS), transformers, heat sinks, fan coils, telecom racks and other industrial equipment; in air handling units and fan filter units (FFU); and in railway, marine, military and avionics equipment. Rosenberg USA is located just outside Charlotte in Indian Trail, N.C.\nMedia Contact\nDominique Caillet, Rosenberg USA, Inc., (704) 893-0883, [email protected], www.rosenbergusa.com\n View original content to download multimedia:https://www.prweb.com/releases/new-rosenberg-i-series-backward-curved-impeller-design-increases-airflow-and-efficiency-cuts-noise-by-half-302119334.html\nSOURCE Rosenberg USA, Inc.","kind":null,"is_publish_news":null,"is_publish_highlight":null,"is_publish_live":null,"is_publish_wemedia":null,"editions":null,"symbols":[],"gpt_button":1},"commentList":[],"isCommentEnd":true,"newsSizeData":{"likeSize":0,"commentSize":0,"repostSize":0,"favoriteSize":0,"likeStatus":false,"favoriteStatus":false},"APP":{"userAgent":"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)","isDev":false,"isTTM":true,"deviceId":"web-server-community-laohu8-v3","version":"4.22.4","shortVersion":"4.22.4","platform":"web","vendor":"web","appName":"ttm","isIOS":false,"isAndroid":false,"isTiger":false,"isTHS":false,"isWeiXin":false,"isWeiXinMini":false,"isWeiBo":false,"isQQ":false,"isBaiduSwan":false,"isBaiduBox":false,"isDingTalk":false,"isToutiao":false,"isOnePlus":false,"isHuaWei":false,"isXiaomi":false,"isXiaomiWebView":false,"isOppo":false,"isVivo":false,"isSamsung":false,"isMobile":false},"href":"/m/news/2428058079"}