题名

可逆式太陽熱能發電系統之研製

并列篇名

The study on a Reversible Solar Thermal Power Generation system

DOI

10.29911/JEHVACE_NEW.202101_(125).0003

作者

翟大鈞(David-King Chai);蘇睿勳(Jui-Hsun Su);朱士勳(Shih-Hsun Chu);鄭郁叡(Yu-Jui Cheng);張伊雯(I-Wen Chang);謝明君(Ming-Chun Hsieh)

关键词

太陽熱能 ; 熱電系統 ; 儲熱裝置 ; 水循環 ; Solar thermal energy ; thermoelectric system ; heat storage device ; water circulation

期刊名称

冷凍空調&能源科技

卷期/出版年月

125期(2021 / 01 / 10)

页次

34 - 38

内容语文

繁體中文

中文摘要

本研究乃建構一種可逆式太陽熱能發電系統,其具有金屬集熱板,作為高溫端之集熱器,在陽光照射面處安裝列陣式排列之熱電晶片,其熱端與集熱板接觸,而冷端則安裝散熱器作為散熱使用。當太陽光照射集熱板時,集熱板的溫度可迅速上升至80℃以上,由於台灣夏季氣溫高且日照長,熱電晶片之熱端可長時間維持於穩定的高溫狀態,冷端所安裝之散熱器則可迅速將熱移出,使冷端持穩於室溫狀態,因此熱電晶片冷熱兩端有一溫差存在,即可產生電壓。在散熱部分採用水冷式散熱裝置,並建構一套水循環與儲水系統,在集熱板、散熱器、儲水桶上安裝溫度感測器,其溫度訊號輸入充電控制系統中。日出後,當集熱板溫度大於儲水槽水溫時,熱電晶片所產生的電能可供儲能系統充電。日落後,集熱板尚未完全冷卻,可繼續提供電能一段時間。當集熱板完全冷卻後,因冷卻水已加溫至高溫狀態,此時儲水桶水溫大於集熱板溫度,熱電晶片的冷端成為熱端,熱端成為冷端,充電控制系統自動將充電極性反向,在夜間繼續利用日間被加熱的冷卻水來產生電能。如此,可不論日夜,24小時全天候利用低溫太陽熱能發電。由於裝置系統簡單且維修容易,只要有太陽的晴天即可發全日發電,同時也能蓄熱水。

英文摘要

In this paper, a reversible solar thermal power generation system is constructed, which consists of a heat collector, an array of thermoelectric chips, and the heat sink. When the sun illuminates the heat collecting plate, the temperature can rapidly rise to above 80℃. Due to the high temperature, the hot end of the thermoelectric generator can be maintained at a high temperature for a long time. The installed heat sink can quickly remove the heat and keep the cold end stable at room temperature. Therefore, there is a temperature difference between the cold and hot ends of the thermoelectric generator to generate voltage. A temperature sensor is installed on the heat collecting plate, the radiator, and the water storage barrel, and the temperature signal is input into the charging control system. After sunrise, when the temperature of the heat collecting plate is greater than the water temperature of the water storage tank, the electrical energy generated by the thermoelectric wafer can be charged by the energy storage system. After sunset, the collector plate has not been completely cooled and can continue to provide electrical energy for a period of time. When the heat collecting plate is completely cooled, because the cooling water has been heated to a high temperature, the water temperature of the water storage tank is greater than the temperature of the heat collecting plate, the cold end of the thermoelectric chip becomes the hot end, and the hot end becomes the cold end. The charging polarity is reversed, and the cooling water heated during the day continues to be used to generate electricity at night. In this way, the low-temperature solar thermal energy can be used to generate electricity 24 hours a day, regardless of day and night. Because the device system is simple and easy to maintain, as long as the sun is clear, it can generate electricity throughout the day and also store hot water.

主题分类 工程學 > 電機工程
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