With the lowest refrigeration temperature and the cooling power at 20K, the openings of needle valves have been optimized, respectively. The power cooling curves and the coefficients of performance (COP) for the two cases are compared.
英
美
- 同時(shí)實(shí)現了壓力和溫度的計算機數據自動(dòng)采集系統,分別針對無(wú)負荷制冷溫度(液氦溫區)和20 K溫區制冷量?jì)?yōu)化了各調節閥的開(kāi)度,并進(jìn)行了功率曲線(xiàn)以及制冷系數(COP)的比較。
