Computer simulation of absorption heat pump using aqueous lithium bromide and ternary nitrate mixtures

1988 ◽  
Author(s):  
M. R. Ally
Keyword(s):  
Computer Simulation ◽  
Heat Pump ◽  
Lithium Bromide ◽  
Absorption Heat Pump ◽  
Aqueous Lithium Bromide

Modelling and performance analysis of a single stage open absorption heat pump system in aspen plus using aqueous LiBr and HCOOK: A waste moist heat recovery application

2021 ◽  
pp. 095765092110478
Author(s):  
Muhammad Kashif Shahzad ◽  
Yaqi Ding ◽  
Yongmei Xuan ◽  
Neng Gao ◽  
Guangming Chen
Keyword(s):  
Heat Pump ◽  
Heat Recovery ◽  
Process Model ◽  
Waste Heat ◽  
Lithium Bromide ◽  
Aspen Plus ◽  
Coefficient Of Performance ◽  
Water Recovery ◽  
Pump System ◽  
Absorption Heat Pump

Open absorption heat pump (OAHP) system is more viable option to recover waste heat from moist gas as compared to the traditional condensation methods. This promising technology has great potential for latent heat recovery from moist gas, drying process in paper and other industrial heating applications. This study presents the process modelling and comparative analysis of OAHP system in Aspen Plus using two different solutions by adopting part regeneration technique. The promising potassium formate-water (HCOOK/H2O) which has lower causticity, lower costs and better crystallization characteristics is used as an alternative to the caustic lithium bromide-water (LiBr/H2O) solution in this study. Process model of the system is established in Aspen Plus and, the properties validity is confirmed with published experimental and Engineering Equation Solver (EES) library data. A detailed comparative parametric study is carried out to evaluate the effect of influencing parameters on coefficient of performance (COP), water recovery (φ) and heat recovery (ζ) efficiencies. The performance of OAHP system is found to be very similar using different concentrations as 2.13 COP value for 50% LiBr/H2O and 2.19 for 70% HCOOK/H2O solution over design conditions. Similarly, φ is found to be 0.701, 0.688 while ζ as 0.716 and 0.705 for both the absorbents. Moreover, the system’s operational concentration range is 45-61.3% for LiBr/H2O and 55-82.1% for HCOOK/H2O at 135 °C regeneration heat input. Potassium formate solution having quite similar properties to the aqueous lithium bromide is also confirmed to have similar performance trends using 50% and 70% concentrations.

The Study of Cooling Water Waste Heat Recovery in Chemical Plant by Heat Pump System

2010 ◽  
Vol 121-122 ◽  
pp. 986-991
Author(s):  
Jing Gang Wang ◽  
Xiao Xia Gao ◽  
Bo Liang ◽  
Hua Hui Zhou
Keyword(s):  
Heat Pump ◽  
Waste Heat ◽  
Lithium Bromide ◽  
Cooling Water ◽  
Water Source ◽  
Chemical Plant ◽  
Pump System ◽  
Absorption Heat Pump ◽  
Heat Pump System ◽  
Water Waste

A large number of cooling water exists in chemical plant, use water source heat pump and lithium bromide absorption heat pump system to achieve water cooling instead of cooling tower, at the same time, extract heat for building cooling and heating. Respectively introduced the summer cooling system and winter heating system, and a feasibility analysis was carried out. The conclusion is get: water source heat pump system and lithium bromide absorption heat pump system for cooling water waste heat recovery is certain feasibility; the environment optimization can be achieved in chemical plant, at the same time, energy conservation and emission reduction is realized.

Influence of Temperature Parameter Change on Lithium Bromide Absorption Heat Pump Performance

2013 ◽  
Vol 291-294 ◽  
pp. 1670-1674
Author(s):  
Biao Li ◽  
Jiang Fan
Keyword(s):  
Power Plant ◽  
Heat Pump ◽  
Waste Heat ◽  
Lithium Bromide ◽  
Optimal Operation ◽  
Pump System ◽  
Absorption Heat Pump ◽  
Heat Pump System ◽  
Heat Pump Unit ◽  
The Impact

It is the new way of the thermal power plant energy conservation to recycling plant circulating water waste heat for heating with the heat pump technology. The recovery of low temperature waste heat is the background. And lithium bromide absorption heat pump is the object of this study. The impact of changes in temperature parameters on the performance of heat pump unit is analyzed. As a theoretical basis for the design of the heat pump system and power plant heat pump unit’s optimal operation provide a reference. The result provides a theoretical reference for the optimal operation of the heat pump system design and power plant heat pump units.

Thermodynamic design data for absorption heat pump systems operating on water-lithium bromide: Part I—Cooling

1986 ◽  
Vol 24 (4) ◽  
pp. 287-301 ◽  
Author(s):  
M.A.R. Eisa ◽  
S. Devotta ◽  
F.A. Holland
Keyword(s):  
Heat Pump ◽  
Lithium Bromide ◽  
Design Data ◽  
Absorption Heat Pump

An experimental integrated absorption heat pump effluent purification system. Part I: operating on water/lithium bromide solutions

1999 ◽  
Vol 19 (5) ◽  
pp. 461-475 ◽  
Author(s):  
S. Santoyo-Gutiérrez ◽  
J. Siqueiros ◽  
C.L. Heard ◽  
E. Santoyo ◽  
F.A. Holland
Keyword(s):  
Heat Pump ◽  
Lithium Bromide ◽  
Effluent Purification ◽  
Absorption Heat Pump ◽  
Purification System ◽  
System Part ◽  
Bromide Solutions

Thermodynamic design data for absorption heat pump systems operating on water-lithium bromide: Part III—Simultaneous cooling and heating

1986 ◽  
Vol 25 (2) ◽  
pp. 83-96 ◽  
Author(s):  
M.A.R. Eisa ◽  
S. Devotta ◽  
F.A. Holland
Keyword(s):  
Heat Pump ◽  
Lithium Bromide ◽  
Design Data ◽  
Absorption Heat Pump

Lithium Bromide/Water Absorption Heat Pump for Simultaneous Production of Heated Air and Steam from Waste Heat

2016 ◽  
Vol 49 (3) ◽  
pp. 268-273 ◽  
Author(s):  
Kenji Marumo ◽  
Nobusuke Kobayashi ◽  
Tsuguhiko Nakagawa ◽  
Jun Fukai ◽  
Yoshinori Itaya
Keyword(s):  
Water Absorption ◽  
Heat Pump ◽  
Waste Heat ◽  
Lithium Bromide ◽  
Absorption Heat Pump ◽  
Simultaneous Production ◽  
Heated Air
Sign in / Sign up

Export Citation Format

Share Document