scholarly journals A Review of single-effect solar absorption chillers and its perspective on Lebanese case

2021 ◽  
Vol 7 ◽  
pp. 12-22
Author(s):  
Christy Lahoud ◽  
Marwan El Brouche ◽  
Chawki Lahoud ◽  
Mohamed Hmadi
Keyword(s):  
Solar Absorption ◽  
Absorption Chillers ◽  
Single Effect

A Retrofit Integration of an Absorption Chiller With a Microturbine Array

2005 ◽  
Author(s):  
Toussaint Williamson ◽  
Mike Luker ◽  
R. L. Hack
Keyword(s):  
Cold Water ◽  
Cost Effective ◽  
Absorption Chiller ◽  
Generator System ◽  
Absorption Chillers ◽  
Single Effect ◽  
Exhaust Energy ◽  
Liquid Heat ◽  
Quantity Of Heat ◽  
Paper Address

The overall system efficiency of a microturbine generator system, and hence the economic viability, are greatly enhanced through co-generation. The utilization of the exhaust energy for heating needs is well understood and has been extensively implemented. Potentially more desirable but having found far less implementation is the integration of microturbines with absorption chillers to generate cold water. Long recognized as a tremendous opportunity in HVAC systems, the integration of a microturbine with an absorption chiller is complicated by the relatively low quality and quantity of heat available from the traditionally recuperated microturbine system. This paper address the design process and the issues encountered in developing a 160 ton absorption chiller system integrated with an array of eight, 60-kW Capstone microturbines. The designed system is not a pre-packaged turbine/chiller system but rather a system that integrates a mix of existing and new microturbines with a commercial gas-to-liquid heat exchanger and a commercial single effect Li-Br absorption chiller. The goal of the effort is demonstrate a cost effective retrofit installation of an absorption chiller with existing microturbines to effectively provide base load chilling for the building’s HVAC needs.

Configuration based modeling and performance analysis of single effect solar absorption cooling system in TRNSYS

2018 ◽  
Vol 157 ◽  
pp. 351-363 ◽  
Author(s):  
Muhammad Shoaib Ahmed Khan ◽  
Abdul Waheed Badar ◽  
Tariq Talha ◽  
Muhammad Wajahat Khan ◽  
Fahad Sarfraz Butt
Keyword(s):  
Performance Analysis ◽  
Cooling System ◽  
Solar Absorption ◽  
Absorption Cooling ◽  
Single Effect ◽  
And Performance ◽  
Solar Absorption Cooling ◽  
Absorption Cooling System

Design and Commissioning of an Experimental Set-Up to Evaluate the Performance of a Solar Absorption Chiller With Thermal Storage

2015 ◽  
Author(s):  
Christopher Baldwin ◽  
Cynthia A. Cruickshank ◽  
Daniel Bowie
Keyword(s):  
Energy Demand ◽  
Complete System ◽  
Thermal Storage ◽  
Absorption Chiller ◽  
Solar Absorption ◽  
Residential Sector ◽  
Absorption Chillers ◽  
Peak Loads ◽  
Thermally Driven ◽  
Set Up

As the demand for cooling increases in Canada, it creates a greater energy demand on the utility grid by placing peak loads during the summer months. As a result, air conditioning in the residential sector is responsible for a disproportionately large and increasing amount of CO2 emissions in Canada. One potential solution is the use of solar thermally driven absorption chillers, however before their widespread use in Canada is possible, extensive testing and optimization of the systems must be conducted to determine their feasibility in the Canadian climate. This paper discusses a full scale experimental test rig that has been recently constructed and commissioned to experimentally evaluate the performance of a commercially available solar absorption chiller with integrated thermal storage. The complete system is described, including the system’s test capabilities, the instrumentation installed, the control system developed, and the calibration and uncertainty analysis completed on each individual sensor and the system as a whole. Additionally, the paper examines the charge cycle of the solar absorption chiller being studied, and compares the results to simulation results obtained from a TRNSYS model of the test apparatus.

scholarly journals Variable flow and optimization of chiller loading effect on energy saving for screw vapor compression-single effect absorption hybrid chiller plant in hospital mechanical room ‒ case study: Tehran heart hospital

2021 ◽  
Vol 22 ◽  
pp. 9
Author(s):  
Ronald Boghosian ◽  
Mostafa Mafi ◽  
Mohammad Hassan Panjeshahi ◽  
Abtin Ataei
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Water Flow ◽  
Flow System ◽  
Vapor Compression ◽  
Absorption Chillers ◽  
Partial Load ◽  
Energy Consuming ◽  
Single Effect ◽  
Variable Water

Chiller plants are the most energy consuming system during summer season in residential, commercial and hospital buildings. The highly variable cooling demand of the buildings connected to a hybrid chiller plant included absorption and vapor compression chillers to achieve higher energy efficiencies is one of the important issues. Cooling load sharing strategies and apply the variable water flow system in chiller plant have a significant impact on energy consumption and consequently with more productivity and environmentally protected. This paper examines the behavior and pattern of energy consumption in a hybrid chiller plant that includes a combination of two air-cooled screw vapor compression and three single effect absorption chillers. In order to properly understand the pattern of energy consumption, an existing mechanical room in a hospital in Tehran has been studied for five months, and its energy consumption has been compared with the optimized model. The results indicate that the sequence of the chiller function and the way in which they are placed in the circuit during a partial load, is in highest importance in view point of energy saving also by Applying of variable water flow system for optimized chiller loading the more energy saving is achieved for hybrid absorption and vapor compression chiller plant.

scholarly journals Performance of a Single Effect Solar Absorption Cooling System (Libr-H2O)

2015 ◽  
Vol 74 ◽  
pp. 130-138 ◽  
Author(s):  
O. Ketfi ◽  
M. Merzouk ◽  
N. Kasbadji Merzouk ◽  
S. El Metenani
Keyword(s):  
Cooling System ◽  
Solar Absorption ◽  
Absorption Cooling ◽  
Single Effect ◽  
Solar Absorption Cooling ◽  
Absorption Cooling System
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