Design and assessment on a novel integrated system for power and refrigeration using waste heat from diesel engine
Design and assessment on a novel integrated system for power and refrigeration using waste heat from diesel engine
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DOI：
10.1016/j.applthermaleng.2015.08.057
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发表时间：
2015-12
影响因子：
6.4
通讯作者：
Yiji Lu;Yaodong Wang;Chenxuan Dong;Liwei Wang;A. Roskilly
中科院分区：
文献类型：
--
作者：
Yiji Lu;Yaodong Wang;Chenxuan Dong;Liwei Wang;A. Roskilly
本文提出了一种利用有机朗肯循环（ORC）和固体吸附技术将制冷和动力系统集成到内燃机（ICE）中的新思路。编制了一维发动机模型，对某中型柴油机的余热进行了计算。在发动机整体工作范围内，对冷却液和排气系统的可回收余热进行了分析。基于这些结果，设计了热电联产的工作条件，并在整个发动机工作区域对热电联产的性能进行了评估。结果表明，冷却液和排气系统的最大可回收功率分别为67.9 kW和82.7 kW。同时，热电联产在发动机额定点可提供13.88 kW的功率和16.58 kW的制冷量。该系统有可能将ICE的整体能源效率从40%提高到47%，并将平均制动比油耗（BSFC）从205克/千瓦时降低到180克/千瓦时。
This paper presents a novel idea of integrating a refrigeration and power system using Organic Rankine cycle (ORC) and solid sorption technology into Internal Combustion Engine (ICE). A 1-D engine model has been coded to evaluate the waste heat quantity of a medium-duty diesel engine. The recoverable waste heat from the coolant and exhaust system has been analysed under engine overall operational region. Based on these results, the working conditions of a cogeneration are designed and the performance of the cogeneration is evaluated throughout the engine operating region. Results indicate that the maximum recoverable from the coolant and exhaust system is 67.9 kW and 82.7 kW, respectively. Meanwhile, the cogeneration can provide the power of 13.88 kW and refrigeration of 16.58 kW at the engine rated point. This system has the potential to improve the overall energy efficiency of the ICE from 40% to 47% and reduce the average brake specific fuel consumption (BSFC) from 205 g/kWh to 180 g/kWh at full load conditions.