Transient characteristics and performance analysis of a vapor compression air conditioning system with condensing heat recovery

Increasing cost of copper material has forced air conditioner manufacturers to lower copper consumption or focus on alternative materials in air conditioning applications in order to stand at upright position in cost competitive environment. Since copper possesses most of the well-suited characteristics that are needed for the air conditioning system, choice of reducing copper material is preferred over alternative materials. Present study focuses on simulation-based design methodology and performance analysis of split air conditioning system with R32 as a refrigerant. It includes replacement of 7[Formula: see text]mm outside diameter condenser coil with 5[Formula: see text]mm diameter copper tubes. Simulation technique for investigating optimal condenser coil geometry incorporating smaller diameter tubes is also demonstrated for typical air conditioning system. Simulation results show that cost of condenser coil with reduced tube diameter is much lower than that of existing coil of higher tube diameter without any compromise in the performance of air conditioning system.

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Performance analysis of hybrid solid desiccant–vapor compression air conditioning system in hot and humid weather of India

Building Services Engineering Research and Technology ◽

10.1177/0143624416633605 ◽

2016 ◽

Vol 37 (5) ◽

pp. 523-538 ◽

Cited By ~ 14

Author(s):

DB Jani ◽

Manish Mishra ◽

PK Sahoo

Keyword(s):

Performance Analysis ◽

Air Conditioning ◽

Vapor Compression ◽

Air Conditioning System

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Application of the counter- and cross-flow indirect evaporative cooler for heat recovery under different climate conditions

E3S Web of Conferences ◽

10.1051/e3sconf/201910000010 ◽

2019 ◽

Vol 100 ◽

pp. 00010

Author(s):

Aleksandra Cichoñ ◽

Anna Pacak ◽

Demis Pandelidis ◽

Sergey Anisimov

Keyword(s):

Air Conditioning ◽

Heat Recovery ◽

Cross Flow ◽

Vapor Compression ◽

Air Conditioning System ◽

Climate Conditions ◽

Application Potential ◽

Evaporative Cooler ◽

Flow Configurations ◽

Direct Evaporative Cooler

This paper investigates the potential of applying an indirect evaporative cooler for heat recovery in air-conditioning system under various climate conditions. The counter- and cross-flow configurations of the indirect evaporative exchanger are addressed in this study in terms of their performance and applicability for different climate zones. Presented analyses are carried out with original ε-NTU model considering condensation from the product airflow and validated against experimental data. It was stated that both configurations of the indirect evaporative exchanger have a high application potential to be employed as a heat recovery device under most climatic parameters. Additionally for each climate zone considered in this paper, the air-conditioning system that consists of either the indirect evaporative exchanger and vapor-compression cooler or indirect evaporative exchanger and direct evaporative cooler is proposed.

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