Process Steam and Chilled Water Production with CPC-collectors, Steam Jet Ejector Chiller and Latent Heat Storages

Joemann, Michael; Oezcan, Tunay; Kauffeld, M; Pollerberg, Clemens

doi:10.1016/j.egypro.2016.06.242

Cited by 11 publications

(6 citation statements)

References 1 publication

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“…Polymers have mostly been investigated as form-stable PCM [14] or as encapsulation material [15]. Very few publications focus on their use as storage materials [13,16,17] even though they offer very interesting properties for the use as PCM. Most plastics are produced on a large industrial scale, which leads to a high availability and thus low prices for common plastics.…”

Section: A State Of the Art Technologymentioning

confidence: 99%

“…In this temperature region there are many possible applications for thermal energy storages. A lot of research has been done in the field of solar energy [17,19,20,21], but there are also applications of waste heat recovery, such as in the chemical industry [22] or from engine exhaust gases [23]. There are also examples for the use of latent heat storages in combinations with fuel cells [24].…”

Section: A State Of the Art Technologymentioning

confidence: 99%

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Design and Performance Analysis of a Latent Heat Storage for the Operation of a High-Temperature Methanol Fuel Cell

Deinert¹,

Daschner²,

Hornung³

2021

Atlantis Highlights in Engineering

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Due to ever stricter economical and legislative regulations, the efficiency of technical processes has to be constantly increased. Besides many other efficiency enhancing methods, the use of waste heat has a great potential to save energy. In particular, the use of waste heat at temperatures above 373 K offers many possibilities, as it is mostly unused today. In order to exploit these potentials, a new latent heat storage system using a polymer as a phase change material has been developed during the R&D project "eleMeMe -Decentralized decoupling of power generation and energy supply through onsite electrochemical methanol production and methanol fuel cells". The storage is used to operate a hightemperature methanol fuel cell. Usually the fuel cell must be electrically preheated before the start to reach its optimum operating temperature. During operation, heat is generated and the system has to be air cooled to maintain its temperature. Instead of cooling the system with air, the heat is now stored in a latent heat storage system to start the fuel cell later.

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Section: A State Of the Art Technologymentioning

confidence: 99%

Section: A State Of the Art Technologymentioning

confidence: 99%

Design and Performance Analysis of a Latent Heat Storage for the Operation of a High-Temperature Methanol Fuel Cell

Deinert¹,

Daschner²,

Hornung³

2021

Atlantis Highlights in Engineering

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“…In these types of materials, energy is stored in the form of change of phase. This phase change may be in solid-liquid, liquid-gas, solid-gas, and solid-solid [19]. Commonly known materials lie in the categories of liquid-gas and solid-liquid phase change materials for CSP applications.…”

Section: Latent Heat Storagementioning

confidence: 99%

“…The reason behind the low preferred solidification temperature is that it should not be deposited as a solid in the circulation pipes in active systems. The amount of energy in this type of material is the sum of sensible energy storage from initial temperature to the final temperature and the energy storage during phase transition as a latent heat [18,19]. Energy stored as a latent heat of fusion can be calculated using Eq.…”

Section: Latent Heat Storagementioning

confidence: 99%

Advances in Concentrated Solar Power: A Perspective of Heat Transfer

Alnaimat¹,

Rashid²

2019

Heat and Mass Transfer - Advances in Science and Technology Applications

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Solar energy has the potential to reduce the dependence on the dwindling supply of fossil fuels through concentrated solar power (CSP) technology. CSP plants utilize solar thermal energy to produce electrical energy based on different thermodynamic power cycles. Solar collectors, reflectors, receivers, thermal fluid, and turbines are the main components of each CSP plant and involve intensive heat transfer at all stages. This chapter illustrates the thermal characteristics of the main components used in CSP technology. In addition, the solar thermal fluid characteristics and its stable operational ranges are discussed in this chapter. Heat capacity, vapor pressure, volume expansion, density and viscosity of the thermal fluid should not differ significantly at different temperatures during various operation stages because these variations can cause failure in the system, which is designed at the fixed material properties. Currently, CSP technology is associated with a higher cost compared to the electricity generated through gas power plants. Many efforts are made to search for sustainable and inexpensive materials to minimize the cost of CSP. One critical issue faced by CSP technology is the intermittent nature of the sun. Modern CSP plants integrate thermal energy storage (TES) unit to smoothen the power production or to shift the production from peak sunshine hours to peak demand hours.

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“…In [14], an adaptive algorithm was created in order to control heat sources and cooling ventilation in an office space. Solar thermal energy was used in order to chill water in [15]. They were able to construct a pilot plant wherein automation was done for it to operate fully automatically.…”

Section: Introductionmentioning

confidence: 99%

A Novel Automated Wind Chiller Hybrid Cooling System for a Cold Storage Room Application

Tapiador¹,

Chua²

2018

IJMERR

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This paper presents a novel automated wind chiller hybrid cooling system applied to a cold storage room. The objective of the new hybrid system is to utilize less electricity from the grid by using a wind chiller setup. The dimensions and cooling load of a typical cold storage room was defined based on the requirements of the Philippine environment. Various cold storage parameters were listed and calculated to fully define the typical cold storage room. An automation system was designed using ladder logic programming to identify the usage of the wind chiller in hybrid with a conventional electric cooling system. The rotational speed of the wind chiller was the primary parameter in accessing the usage of the wind chiller or the electrical cooling system. The automation included lubrication to ensure optimal wind chiller rotation. Equipment for automation implementation were suggested in the study. Simulations showed that the proposed program can control the utilization of wind chiller or the electrical cooling system for optimal performance. Results show that a potential savings of USD 4,860 can be achieved in a year. 

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Process Steam and Chilled Water Production with CPC-collectors, Steam Jet Ejector Chiller and Latent Heat Storages

Cited by 11 publications

References 1 publication

Design and Performance Analysis of a Latent Heat Storage for the Operation of a High-Temperature Methanol Fuel Cell

Design and Performance Analysis of a Latent Heat Storage for the Operation of a High-Temperature Methanol Fuel Cell

Advances in Concentrated Solar Power: A Perspective of Heat Transfer

A Novel Automated Wind Chiller Hybrid Cooling System for a Cold Storage Room Application

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