Operation analysis, response and performance evaluation of a pulsating heat pipe for low temperature heat recovery

2020 ◽  
Vol 222 ◽  
pp. 113230 ◽  
Author(s):  
Zhixiong Li ◽  
M.M. Sarafraz ◽  
Arash Mazinani ◽  
Hazim Moria ◽  
Iskander Tlili ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Low Temperature ◽  
Heat Pipe ◽  
Heat Recovery ◽  
Pulsating Heat Pipe ◽  
Operation Analysis ◽  
Temperature Heat ◽  
And Performance

Design, fabrication and performance evaluation of pulsating heat pipe assisted tool holder

2020 ◽  
Vol 50 ◽  
pp. 224-233 ◽  
Author(s):  
Ze Wu ◽  
Youqiang Xing ◽  
Lei Liu ◽  
Peng Huang ◽  
Guolong Zhao
Keyword(s):  
Performance Evaluation ◽  
Heat Pipe ◽  
Pulsating Heat Pipe ◽  
Tool Holder ◽  
And Performance

Experimental Study on Energy Saving between Heat Pump Unit of Heat Recovery Fresh Air and Heat Pipe Heat Pump Low Temperature Heat Recovery Unit in the Cold and Severe Cold Regions

2014 ◽  
Vol 535 ◽  
pp. 37-41
Author(s):  
Yang Li ◽  
Xiu Juan Liang
Keyword(s):  
Low Temperature ◽  
Energy Saving ◽  
Heat Pipe ◽  
Heat Pump ◽  
Heat Recovery ◽  
Pump Unit ◽  
Recovery Unit ◽  
Heat Pump Unit ◽  
Temperature Heat ◽  
Pipe Heat

In the cold and severe cold regions of our country, the average temperature in winter outdoor usually below -20°C. Air conditioning units was limited and damaged when it running under such conditions. In order to solve the the problems pointed out previously, the paper put forward solutions of the fresh air handling units in combination with heat pump unit of heat recovery fresh air and heat pipe heat pump low temperature heat recovery unit. Comparison energy-saving and recovery period of the two method through experimental research.

A review of low-temperature heat recovery technologies for industry processes

2019 ◽  
Vol 27 (10) ◽  
pp. 2227-2237 ◽  
Author(s):  
Li Xia ◽  
Renmin Liu ◽  
Yiting Zeng ◽  
Peng Zhou ◽  
Jingjing Liu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Heat Recovery ◽  
Temperature Heat

scholarly journals Low temperature heat recovery in engine coolant for stationary and road transport applications

2017 ◽  
Vol 129 ◽  
pp. 834-842 ◽  
Author(s):  
Pierre Leduc ◽  
Pascal Smague ◽  
Arthur Leroux ◽  
Gabriel Henry
Keyword(s):  
Low Temperature ◽  
Heat Recovery ◽  
Road Transport ◽  
Temperature Heat ◽  
Engine Coolant

scholarly journals Low GWP alternatives to HFC-245fa in Organic Rankine Cycles for low temperature heat recovery: HCFO-1233zd-E and HFO-1336mzz-Z

2014 ◽  
Vol 71 (1) ◽  
pp. 204-212 ◽  
Author(s):  
Francisco Molés ◽  
Joaquín Navarro-Esbrí ◽  
Bernardo Peris ◽  
Adrián Mota-Babiloni ◽  
Ángel Barragán-Cervera ◽  
...  
Keyword(s):  
Low Temperature ◽  
Heat Recovery ◽  
Temperature Heat ◽  
Organic Rankine Cycles

Performance Improvement of a Combined Power and Cooling Cycle for Low Temperature Heat Sources Using Internal Heat Recovery and Scroll Expander

2019 ◽  
Author(s):  
Martina Leveni ◽  
Arun Kumar Narasimhan ◽  
Eydhah Almatrafi ◽  
D. Yogi Goswami
Keyword(s):  
Low Temperature ◽  
Heat Recovery ◽  
Pressure Ratio ◽  
Internal Heat ◽  
Operating Conditions ◽  
Maximum Efficiency ◽  
Water Mixture ◽  
Heat Sources ◽  
Scroll Expander ◽  
Temperature Heat

Abstract Low temperature heat sources inherently result in lower cycle efficiencies, which can be improved by means of combined power and cooling generation. In order to produce power and cooling, appropriate thermodynamic cycles and working fluids must be used. Goswami cycle is a combined cycle that produces power and refrigeration by using ammonia-water mixture for low temperature heat sources. In the present study, a scroll expander is modeled specifically for the cycle operating conditions and a theoretical investigation is conducted to determine the cycle performance. A scroll expander design suitable for the operating conditions improves the power output and thereby overall thermal efficiency. The scroll expander efficiency varied between 0.05 and 0.61 for the pressure ratio between 2.2 and 8.6, with a maximum efficiency of 0.697 achieved at a pressure ratio of about 4.4. An internal heat recovery from the rectifier is proposed along with a flow split in the strong solution and analyzed for overall cycle energy efficiency improvement. Internal heat recovery from the rectifier increased the first law effective efficiency and the effective exergy efficiency by 7.9% and 7.8%, respectively, over the basic configuration.

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