Design Optimization of a Single Fluid, Solid Sensible Heat Storage Unit

1977 ◽  
Vol 99 (2) ◽  
pp. 174-179 ◽  
Author(s):  
F. W. Schmidt ◽  
R. R. Somers ◽  
J. Szego ◽  
D. H. Laananen
Keyword(s):  
Design Optimization ◽  
Heat Storage ◽  
Operating Conditions ◽  
Minimum Length ◽  
Complex Method ◽  
Fluid Temperature ◽  
Sensible Heat ◽  
Storage Material ◽  
Storage Unit ◽  
Flowing Fluid

The optimization of the design of a solid sensible heat storage unit initially at a uniform-temperature is presented. The storage unit is composed of a number of rectangular cross-sectional channels for the flowing fluid, connected in parallel and separated by the heat storage material. The complex method for constrained nonlinear optimization as presented by M. J. Box is utilized, with some modifications. The design optimization is based upon achieving maximum utilization of the heat storage or removal capabilities of the material for a given set of operating conditions. This is achieved by varying the storage unit’s geometry while placing constraints on the maximum and minimum length of the unit, fluid channel size, storage material thickness, maximum and minimum outlet fluid temperature, and the minimum amount of heat to be stored.

Transient Response of Solid Sensible Heat Thermal Storage Units—Single Fluid

1976 ◽  
Vol 98 (3) ◽  
pp. 471-477 ◽  
Author(s):  
F. W. Schmidt ◽  
J. Szego
Keyword(s):  
Transient Response ◽  
Heat Storage ◽  
Transient Behavior ◽  
Outlet Temperature ◽  
Sensible Heat ◽  
Storage Material ◽  
Storage Unit ◽  
Cross Sectional ◽  
Flowing Fluid ◽  
Heat Storage Material

The transient response of a solid sensible heat storage unit which receives or supplies heat to a single flowing fluid is presented. The storage unit is composed of a number of rectangular cross-sectional channels for the flowing fluid, connected in parallel and separated by the heat storage material. The energy equation for the fluid and the transient conduction equation for the storage material are solved using finite difference techniques. The parameters which characterize the transient behavior of these units are identified. Results suitable for the prediction of the rate of heat storage and the outlet temperature of the fluid leaving the storage unit are presented as functions of the identified nondimensional parameters.

Transient Behavior of a Solid Sensible Heat Thermal Storage Exchanger

1978 ◽  
Vol 100 (1) ◽  
pp. 148-154 ◽  
Author(s):  
J. Szego ◽  
F. W. Schmidt
Keyword(s):  
Heat Storage ◽  
Thermal Response ◽  
Transient Behavior ◽  
Inlet Temperature ◽  
Sensible Heat ◽  
Storage Material ◽  
Storage Unit ◽  
Response Characteristics ◽  
Rectangular Channels ◽  
Heat Storage Material

The transient response characteristics of a solid sensible heat storage exchanger which interacts with two energy transporting fluids are presented. The storage unit is composed of a series of large aspect ratio rectangular channels for the fluids, separated by slabs of the heat storage material. The hot and cold fluids flow in counter current fashion, in alternate channels so that each slab of storage material is in contact with both fluids. The entire system is considered to be initially in equilibrium at a uniform temperature, a step change in the inlet temperature of one of the fluids is imposed, and the thermal response of the unit is predicted until steady state conditions are reached. The response of the storage exchanger to an arbitrary time variation of one of the fluids’ inlet temperature may be obtained using superposition.

scholarly journals Experimental investigation of solid by-product as sensible heat storage material: Characterization and corrosion study

2016 ◽  
Author(s):  
Iñigo Ortega-Fernández ◽  
Abdessamad Faik ◽  
Karthik Mani ◽  
Javier Rodriguez-Aseguinolaza ◽  
Bruno D’Aguanno
Keyword(s):  
Experimental Investigation ◽  
Material Characterization ◽  
Heat Storage ◽  
Sensible Heat ◽  
Storage Material ◽  
Corrosion Study ◽  
Heat Storage Material

Investigation of performance enhancement of solar still incorporated with Gallus gallus domesticus cascara as sensible heat storage material

2020 ◽  
Vol 28 (1) ◽  
pp. 611-624 ◽  
Author(s):  
Gurukarthik Babu Balachandran ◽  
Prince Winston David ◽  
Gokul Rajendran ◽  
Mohamed Nasrulla Akbar Ali ◽  
Vignesh Radhakrishnan ◽  
...  
Keyword(s):  
Heat Storage ◽  
Performance Enhancement ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Sensible Heat ◽  
Gallus Gallus Domesticus ◽  
Solar Still ◽  
Storage Material ◽  
Heat Storage Material

Optimization of a Packed Bed Thermal Energy Storage Unit

1987 ◽  
Vol 109 (3) ◽  
pp. 170-175 ◽  
Author(s):  
H. Torab ◽  
D. E. Beasley
Keyword(s):  
Energy Storage ◽  
Cross Section ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Relative Size ◽  
Packed Bed ◽  
Operating Conditions ◽  
Fluid Temperature ◽  
Storage Unit ◽  
Energy Storage Unit

The optimization of the design of a packed-bed thermal energy storage unit is presented. A one-dimensional, transient, two-phase model is chosen for the packed bed which assumes uniformity at each cross section within the packing. The governing equations for the time dependent temperature distributions in both the solid and fluid phases are solved using a fully implicit formulation. The accuracy of the numerical method is demonstrated by comparison with experimental measurements of temperature distribution in a randomly packed bed of uniform spheres. The goal of the optimization is to achieve maximum utilization of the thermal energy storage and recovery capabilities of the storage medium for a given set of operating conditions. The optimum combination of bed length, size of the packing particles, and relative size of the bed cross section to the particle diameter is determined, subject to constraints on the maximum allowable pressure drop across the packing, the maximum outlet fluid temperature, and the total amount of supplied energy. The thermodynamic availability is examined as the measure of storage utilization. The monotinicity method is utilized for the optimization process. This method identifies a global optimum without any special computations, and prevents acceptance of false optimum solutions, as could be generated by numerical techniques. The results of the study provide guidelines for choosing the size of the packing and the packing particle subject to the constraints for a practical operating system.

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