کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5145750 | 1497361 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Open and closed metal hydride system for high thermal power applications: Preheating vehicle components
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Open and closed metal hydride system for high thermal power applications: Preheating vehicle components Open and closed metal hydride system for high thermal power applications: Preheating vehicle components](/preview/png/5145750.png)
چکیده انگلیسی
Many vehicle components operate at temperatures above ambient conditions. At cold start, most of the pollutants are produced and lifespan is reduced. Thermochemical energy storage with high power density could prevent these disadvantages. In order to investigate achievable power densities of a thermochemical energy storage at technically relevant boundary conditions, a laboratory scale device using metal hydrides (LaNi4.85Al0.15 and C5®) is designed and preheating operation modes (open and closed) are analyzed. The impact of the ambient temperature (from â20 to +20 °C), a s well as other influencing factors on the thermal power output such as heat transfer flow rate, regeneration temperature and pressure conditions are investigated. The experiments proved the suitability of the reactor design and material selection for the considered application boundary conditions. For the coupled reaction (closed system), the ambient temperature has the greatest influence on the thermal power with decreasing values for lower temperatures. Here, values between 0.6 kW/kgMH at ambient temperature of â20 °C and 1.6 kW/kgMH at 20 °C, at otherwise same conditions, were reached. If hydrogen can be supplied from a pressure tank (open system), the supply pressure in relation to equilibrium pressure at the considered ambient temperature has to be large enough for high thermal power. At â20 °C, 1.4 kW/kgMH at a supply pressure of 1.5 bar and 5.4 kW/kgMH at a hydrogen pressure of 10 bar were reached.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 16, 20 April 2017, Pages 11469-11481
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 16, 20 April 2017, Pages 11469-11481
نویسندگان
Mila Dieterich, Inga Bürger, Marc Linder,