Abstract
Low-grade Thermal Energy Conversion (LTEC) is a potential source of renewable energy. One of its forms is the Ocean Thermal Energy Conversion (OTEC) in which the temperature difference between the warm surface water and the cold deep water of the ocean is utilized in driving a heat engine cycle. Unlike the conventional thermal power generation systems, the temperature difference between the heat source and heat sink in OTEC system is relatively small. Therefore, efficient heat exchangers should be used since heat exchangers play a major role in the overall system performance and economics. Due to their efficiency even in operating at small temperature difference, plate heat exchangers are strong candidates in OTEC systems. In this study, performance of a herringbone plate-type heat exchanger is experimentally investigated. Moreover, numerical simulation results obtained by using Fluent CFD software are compared with the experimental results and found in good agreement.
Highlights
Plate Heat Exchangers (PHE) have been increasingly used in the past decades, in chemical and food processing industries for which it was originated in the 1930s, and in wide range of industrial and energy application
Muley and Manglik [1] investigated the effect of chevron angle and the enlargement factor for three different plates in single pass counter flow arrangement
They investigated the effect of chevron angle and enlargement factor on the
Summary
Plate Heat Exchangers (PHE) have been increasingly used in the past decades, in chemical and food processing industries for which it was originated in the 1930s, and in wide range of industrial and energy application. This is due to their compactness, effectiveness in transferring heat, bio-fouling resistance and the ease of dismantling, cleaning, and the ease to adapt to changes in thermal demand. Owing to the flexibility and modular design of plate heat exchangers, a wide range of PHEs that suits specific needs is offered; evaluation of the PHE thermal and hydraulic characteristics experimentally can be costly especially when testing sophisticated plate patterns and when using expensive corrosive resistant materials. Performed analysis indicates good agreement between the experimental and the numerical results at the investigated range of variables
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