Hybrid heating system for increased energy efficiency and flexible control of low temperature heat

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU127324" target="_blank" >RIV/00216305:26210/18:PU127324 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s12053-017-9584-6" target="_blank" >http://dx.doi.org/10.1007/s12053-017-9584-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12053-017-9584-6" target="_blank" >10.1007/s12053-017-9584-6</a>

Result language

angličtina

Original language name

Hybrid heating system for increased energy efficiency and flexible control of low temperature heat

Original language description

This study presents the evaluation of functionality and potential of a hybrid heating system (H2S) prototype. This technology is designed for retrofitting thermal treatment plants to use hot water (HW) and steam in controlled ratios. In the food industry, steam with a temperature above 140 °C usually indirectly supplies the thermal production processes, but most of them only require temperatures below 100 °C. Total site heat integration is applied on a cheese and whey powder plant to show the potential for low-temperature heat (below 100 °C) that could be supplied more appropriately by hot water cogeneration, heat recovery and heat pumps. These low-temperature heat sources can only be combined with the rigid steam system if the demand structure is changed to a hybrid use of HW and steam. The H2S increases the energy efficiency and flexibility by integrating low-temperature heat and responding to sudden changes in the demand and supply structure, like demand response strategies on intermittent renewable energies and the changing availability of HW and steam. The technical implementation is realised by a hydraulic interconnection of heat exchangers and valves. A smart control algorithm acutely determines the share of HW and steam. Prerequisite for functional verification on a laboratory scale is a hardware-in-the-loop (HIL) testbed, in which load profiles and relevant process parameters are passed in real time between hardware components and simulation. The results show that the H2S is a feasible solution for maintaining product quality and safety while also increasing energy efficiency and energy flexibility.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20402 - Chemical process engineering

Project

<a href="/en/project/EF15_003%2F0000456" target="_blank" >EF15_003/0000456: Sustainable Process Integration Laboratory (SPIL)</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Energy Efficiency

ISSN

1570-646X

e-ISSN

1570-6478

Volume of the periodical

11

Issue of the periodical within the volume

5

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

17

Pages from-to

1117-1133

UT code for WoS article

000432748200005

EID of the result in the Scopus database

2-s2.0-85034237038