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热水电加热系统

热水电加热系统. 如图所示为热水电加热系统,为减小周围空气的热损耗,槽壁是绝热的,控温元件是电动控温开关。试分析其数学模型. 根据能量守恒定律. 其中 Q h—— 加热器供给的热量;. Q C—— 贮槽内水吸收的热量;. Q 0—— 热水流出槽所带走的热量 :. Q i—— 冷水进入槽带入的热量 :. Q l—— 隔热壁逸散的热量 :. C — 贮槽水的热容量; V — 流出槽水的流量; H — 水的比热; R — 热阻; T i — 进入槽水的温度; T — 槽内水的温度; T e — 槽周围空气温度。. 整理得.

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热水电加热系统

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  1. 热水电加热系统

  2. 如图所示为热水电加热系统,为减小周围空气的热损耗,槽壁是绝热的,控温元件是电动控温开关。试分析其数学模型

  3. 根据能量守恒定律 其中 Qh—— 加热器供给的热量; QC—— 贮槽内水吸收的热量; Q0—— 热水流出槽所带走的热量: Qi—— 冷水进入槽带入的热量: Ql—— 隔热壁逸散的热量: C—贮槽水的热容量;V—流出槽水的流量;H— 水的比热;R—热阻;Ti—进入槽水的温度;T—槽内水的温度;Te—槽周围空气温度。

  4. 整理得

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