scholarly journals Simulation and experimental study of solar-absorption heat transformer integrating with two-stage high temperature vapor compression heat pump

2014 ◽  
Vol 4 ◽  
pp. 166-174 ◽  
Author(s):  
Nattaporn Chaiyat ◽  
Tanongkiat Kiatsiriroat
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Heat Pump ◽  
Vapor Compression ◽  
Two Stage ◽  
Solar Absorption ◽  
Heat Transformer ◽  
High Temperature Vapor

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

Experimental study of operating characteristics of compression/absorption high-temperature hybrid heat pump using waste heat

2013 ◽  
Vol 54 ◽  
pp. 13-19 ◽  
Author(s):  
Jiyoung Kim ◽  
Seong-Ryong Park ◽  
Young-Jin Baik ◽  
Ki-Chang Chang ◽  
Ho-Sang Ra ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Heat Pump ◽  
Waste Heat ◽  
Operating Characteristics ◽  
Hybrid Heat Pump

scholarly journals Thermodynamic competitiveness of high temperature vapor compression heat pumps for boiler substitution

Energy ◽  
2019 ◽  
Vol 182 ◽  
pp. 110-121 ◽  
Author(s):  
Riccardo Bergamini ◽  
Jonas Kjær Jensen ◽  
Brian Elmegaard
Keyword(s):  
High Temperature ◽  
Heat Pumps ◽  
Vapor Compression ◽  
High Temperature Vapor

scholarly journals Calculated and experimental evaluation heat pump distiller on pentane as working substance

2020 ◽  
Vol 324 ◽  
pp. 02007
Author(s):  
Gennady A. Ilyn ◽  
Ilya I. Malafeev ◽  
Vladimir B. Sapojnikov
Keyword(s):  
High Temperature ◽  
High Efficiency ◽  
Recovery Phase ◽  
High Energy ◽  
Heat Pumps ◽  
Working Fluid ◽  
Vapor Compression ◽  
The Cost ◽  
Reliable Methods ◽  
High Temperature Vapor

One of the most common and reliable methods of water treatment is the method of thermal distillation. Despite the reliability of the method, its application is constrained by high energy intensity. The most effective way to reduce the cost of production of distillate is the use of thermal transformers, providing regenerate and heat recovery phase transformations of the distillate. The use of working fluid with the most favorable thermodynamic properties is of paramount importance for the creation of high efficiency thermotransformers. The work is considered working fluid for high-temperature heat pumps and the results of the calculation-experimental study of high-temperature vapor compression heat-pumping distiller on natural working substance n-pentan.

Experimental Study of Weightless Effect on Small Vapor Compression Heat Pump

2018 ◽  
Vol 30 (6) ◽  
pp. 977-985 ◽  
Author(s):  
Rui Ma ◽  
Yu-ting Wu ◽  
Chun-xu Du ◽  
Xia Chen ◽  
Chong-fang Ma ◽  
...  
Keyword(s):  
Experimental Study ◽  
Heat Pump ◽  
Vapor Compression

Performance Curves for Single-Stage Vapor Compression Cycles With Solution Circuit

1991 ◽  
Vol 113 (2) ◽  
pp. 221-227 ◽  
Author(s):  
K. Amrane ◽  
M. V. Rane ◽  
R. Radermacher
Keyword(s):  
Weak Solution ◽  
High Temperature ◽  
Heat Pump ◽  
Solution Concentration ◽  
Operating Conditions ◽  
Single Stage ◽  
Solution Temperature ◽  
Ammonia Vapor ◽  
Vapor Compression ◽  
Performance Curves

The performance curves for a single-stage vapor compression heat pump with solution circuit (VCHSC) and for its modified version, the cycle using a subcooler and a preheater, are obtained and are compared for the same total UA value including all heat exchangers. The two cycles are simulated at low and high temperature lifts. The weak solution concentration and flow rate are varied. The parameters studied are the cooling COP, the solution heat exchanger (SHX) effectiveness, the pressure ratio, the solution temperature glides in the absorber and the desorber, the desorber load, and the distribution of the UA value. Changing the weak solution concentration from 20 to 90 wt% ammonia increased the desorber load ten times. The cooling COP improved by as much as 20 percent by incorporating the preheater and the subcooler, for both the low and the high temperature lifts. Compared to the conventional ammonia vapor compression cycle, the modified VCHSC showed a maximum improvement in cooling COP of 88 and 35 percent for the low and high temperature lifts, respectively. The results indicate that VCHSC is a very versatile heat pump and/or refrigeration system suitable for a wide range of applications and changing operating conditions.

scholarly journals Intelligent High-performance Dynamic Control for Two-stage Screw High-temperature Heat Pump System

2018 ◽  
Vol 30 (11) ◽  
pp. 2599 ◽  
Author(s):  
Win-Jet Luo ◽  
Jin-Chang Lai ◽  
Po-Yuan Hsieh ◽  
Fikri Rahmat Fasya
Keyword(s):  
High Temperature ◽  
Heat Pump ◽  
High Performance ◽  
Dynamic Control ◽  
Two Stage ◽  
Pump System ◽  
Heat Pump System ◽  
Temperature Heat ◽  
High Temperature Heat Pump
Sign in / Sign up

Export Citation Format

Share Document