scholarly journals Performance Analysis of High-temperature Two-stage Compression Heat Pump with Vapor Injection Dynamic Control

2020 ◽  
Vol 32 (12) ◽  
pp. 4259
Author(s):  
Win-Jet Luo ◽  
Jin-Chang Lai ◽  
Ming-Chu Hsieh ◽  
I-Hsing Huang
Keyword(s):  
High Temperature ◽  
Performance Analysis ◽  
Heat Pump ◽  
Dynamic Control ◽  
Two Stage ◽  
Vapor Injection

Performance analysis of high-temperature water source cascade heat pump using BY3B/BY6 as refrigerants

2019 ◽  
Vol 159 ◽  
pp. 113895 ◽  
Author(s):  
Xiaoqiong Li ◽  
Yufeng Zhang ◽  
Xuelian Ma ◽  
Na Deng ◽  
Zhendong Jin ◽  
...  
Keyword(s):  
High Temperature ◽  
Performance Analysis ◽  
Heat Pump ◽  
Water Source ◽  
High Temperature Water ◽  
Temperature Water

Development of a Novel Two-Stage Heat Pump Clothes Dryer

2014 ◽  
Author(s):  
Tao Cao ◽  
Jiazhen Ling ◽  
Yunho Hwang ◽  
Reinhard Radermacher
Keyword(s):  
Heat Exchanger ◽  
Heat Pump ◽  
Energy Savings ◽  
Design Tool ◽  
Department Of Energy ◽  
Two Stage ◽  
Heat Exchanger Design ◽  
Clothes Dryer ◽  
Vapor Injection ◽  
Injection Cycle

An energy efficient two-stage heat pump clothes dryer (HPCD) was successfully developed. This new dryer utilizes three advanced technologies: vapor injection cycle, compact heat exchanger and brushless direct current (BLDC) fan motor. An in-house heat exchanger design tool – CoilDesigner was utilized to design and optimize the evaporator and condenser in the vapor injection cycle. One electric clothes dryer (CD) from U.S. market was selected as the baseline product, and one hybrid HPCD from European market was selected as the best state-of-the-art commercial product in terms of energy efficiency. These two commercial products and the constructed two-stage HPCD prototype were tested according to the Department of Energy (DOE) dryer test standards. Experimental evaluation revealed that the two-stage HPCD achieved 59% energy savings and improved energy factor (EF) by 143% as compared to the electric dryer. It also achieved 25% energy savings and improved EF by 33% as compared to the hybrid HPCD. This implied that the two-stage HPCD could save energy up to 42 TW·h annually if this technology is fully deployed to replace all U.S. electric CDs. Cost analysis indicates that the payback period of the two-stage HPCD is only 2.2 years as compared to the electric dryer with bottom cabinet. Therefore, the two-stage HPCD is an economically competitive greener option.

scholarly journals Study of Wood Drying with Two-Stage Compression High Temperature Heat Pump

2013 ◽  
Vol 5 (2) ◽  
pp. 180-185
Author(s):  
Zhentao Zhang ◽  
Wenye Lin ◽  
Luwei Yang ◽  
Yanhua Dong ◽  
Biguang Zhang Yang
Keyword(s):  
High Temperature ◽  
Heat Pump ◽  
Wood Drying ◽  
Two Stage ◽  
Temperature Heat ◽  
High Temperature Heat Pump

scholarly journals Analysis and optimization of subcritical two-stage vapor injection heat pump systems

2014 ◽  
Vol 124 ◽  
pp. 231-240 ◽  
Author(s):  
A. Redón ◽  
E. Navarro-Peris ◽  
M. Pitarch ◽  
J. Gonzálvez-Macia ◽  
J.M. Corberán
Keyword(s):  
Heat Pump ◽  
Two Stage ◽  
Vapor Injection

scholarly journals Performance analysis of a vapor injection heat pump using ambient air and recovery electric motor waste thermal

2021 ◽  
Vol 1865 (3) ◽  
pp. 032038
Author(s):  
Changhao Piao ◽  
Ziyang Liu ◽  
Weiwei Wang ◽  
Cunxue Wu ◽  
Rongdi Yuan
Keyword(s):  
Performance Analysis ◽  
Heat Pump ◽  
Electric Motor ◽  
Ambient Air ◽  
Vapor Injection
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