气体机排气驱动吸收式制冷机变工况调节特性

发布时间：2018-04-15 20:58

本文选题：气体机 + 吸收式制冷　；参考：《天津大学学报(自然科学与工程技术版)》2017年07期

【摘要】：以内燃机为原动机的分布式供能系统中,发动机工况变化对吸收式制冷机运行具有重要影响.建立了某发电用气体机排气驱动的吸收式制冷系统稳态模型,提出了"动态多种群粒子群优化(DMS-PSO)+NM单纯形法"复合算法对模型进行求解.依据气体机实测余热数据,研究了发动机不同工况下调节溶液循环量对系统性能的影响.结果表明,以额定溶液循环量运行时,当发动机负荷低于30%,时,余热制冷系统由于循环倍率过大而无法正常运行.通过减小溶液循环量可以显著改善发动机低负荷时的系统性能,发动机负荷为40%,时,系统制冷量提升26.9%,.由于溶液结晶限制,在发动机不同负荷下,溶液循环量调节存在最低限值.
[Abstract]:Distributed to the internal combustion engine as the motive of the energy supply system, change of the operating condition of the engine has an important influence on the absorption refrigerating machine operation. The absorption refrigeration system for engine exhaust gas steady-state model of a power drive was established, proposed a dynamic multi swarm particle swarm optimization (DMS-PSO) +NM simplex method composite algorithm to solve the model based on the measured data. The gas engine heat, on the performance of the system regulating solution circulation rate under different operation conditions. The results show that the operation at rated solution circulation rate, when the engine load is less than 30%, when the waste heat refrigeration system because the circulation rate is too large and can not run normally. By decreasing the solution circulation rate can be significantly improved the system performance at low engine load when the engine load is 40%, when the cooling capacity increased by 26.9%. Because the solution crystallization limit, when the engine is not under the same load, solution There is a minimum limit for circulation regulation.

【作者单位】：天津大学内燃机燃烧学国家重点实验室;
【基金】：国家科技支撑计划资助项目(2015BAG16B00)~~
【分类号】：TB657

【相似文献】