Cross Flow Indirect Evaporative Cooler Made of a Plastic Film/Paper Composite

2017 ◽  
Vol 41 (1) ◽  
pp. 21-28
Author(s):  
Nae-Hyun Kim
Keyword(s):  
Cross Flow ◽  
Plastic Film ◽  
Evaporative Cooler

Sustainable Poultry House Ventilation Using Dew Point Indirect Evaporative Cooler Aided With Radiative Cooling

2021 ◽  
Author(s):  
Douaa Al-Assaad ◽  
Nesreen Ghaddar ◽  
Kamel Ghali ◽  
Djamel Ouahrani
Keyword(s):  
Air Quality ◽  
Distribution System ◽  
Thermal Environment ◽  
Cross Flow ◽  
Production Quality ◽  
Dew Point ◽  
Radiative Cooling ◽  
Poultry House ◽  
Evaporative Cooler ◽  
June July

Abstract Maintaining good production quality in layer poultry houses is directly correlated to the thermal environment of the laying hens as well as their breathable air quality. This work compares the performance of two passive cooling systems in meeting the thermal and indoor air quality requirements (CO2, water vapor and NH3) in a layer house in Doha, Qatar characterized by a semi-arid climate. The first system is a standalone cross flow dew point evaporative cooler (DPIEC) supplying air through a localized air distribution system. The second system is a DPIEC aided by a radiative cooling (RC) panel that pre-cools the supply fresh air, in an effort to reduce the system sizing, air and water consumption even further. To achieve these objectives, a modular analysis was adopted, where mathematical models were developed for the DPIEC and RC systems and the poultry house module conditioned by the localized system. A 3D CFD model was developed for the compartment conditioned by the localized system. The DPIEC was sized and the hourly variation in needed supply fresh air and water was determined for the critical month of May, June July of the summer season.

Experimental evaluation of a solid desiccant system integrated with cross flow Maisotsenko cycle evaporative cooler

2018 ◽  
Vol 128 ◽  
pp. 1476-1487 ◽  
Author(s):  
M. Kashif Shahzad ◽  
Ghulam Qadar Chaudhary ◽  
Muzaffar Ali ◽  
Nadeem Ahmed Sheikh ◽  
M. Shahid Khalil ◽  
...  
Keyword(s):  
Experimental Evaluation ◽  
Cross Flow ◽  
Evaporative Cooler

Development of an experimental validated model of cross-flow indirect evaporative cooler with condensation

2019 ◽  
Vol 252 ◽  
pp. 113438 ◽  
Author(s):  
Bin Zheng ◽  
Chunmei Guo ◽  
Tong Chen ◽  
Qi Shi ◽  
Jian Lv ◽  
...  
Keyword(s):  
Cross Flow ◽  
Evaporative Cooler

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

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.

Numerical heat and mass transfer analysis of a cross-flow indirect evaporative cooler with plates and flat tubes

2015 ◽  
Vol 52 (9) ◽  
pp. 1765-1777 ◽  
Author(s):  
K. J. Chua ◽  
J. Xu ◽  
X. Cui ◽  
K. C. Ng ◽  
M. R. Islam
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Cross Flow ◽  
Flat Tubes ◽  
Evaporative Cooler

Modeling of Heat and Moisture Transfer in an Indirect Evaporative Cooler Made of Plastic Film/Paper

2015 ◽  
Vol 23 (04) ◽  
pp. 1550026 ◽  
Author(s):  
Nae-Hyun Kim
Keyword(s):  
Parametric Study ◽  
Moisture Transfer ◽  
Channel Height ◽  
Inlet Temperature ◽  
Plastic Film ◽  
Channel Inlet ◽  
Air Leakage ◽  
Overall Heat Transfer Coefficient ◽  
Evaporative Cooler ◽  
Heat And Moisture

In this study, a thermal model of indirect evaporative cooler (IEC) was constructed. An IEC made of plastic film/paper composite was tested, and the results were compared with predictions of the model. In adddition, parametric study was conducted using the model. The model was based on [Formula: see text]-NTU analysis of wet surface heat and mass transfer. Especially, the model considered air leakage, nonuniform overall heat transfer coefficient and entrance region. Comparison of the predictions of the model with limited experimental data showed favorable results. Parametric study using the model showed that increase of the dry and wet channel inlet temperature resulted in increase of the indirect evaporation efficiency. The increase of the wet channel inlet humidity also increases the efficiency. The dry channel inlet humidity, however, was independent of the efficiency. The indirect evaporation efficiency and the pressure drop increased as the IEC size increased. However, they decreased as the channel height increased.

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