THERMAL PROPERTIES OF CARDIOPLEGIA HEAT EXCHANGERS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU144084" target="_blank" >RIV/00216305:26210/20:PU144084 - isvavai.cz</a>
Result on the web
<a href="https://www.engmech.cz/im/proceedings/show_p/2020/82" target="_blank" >https://www.engmech.cz/im/proceedings/show_p/2020/82</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21495/5896-3-082" target="_blank" >10.21495/5896-3-082</a>
Alternative languages
Result language
angličtina
Original language name
THERMAL PROPERTIES OF CARDIOPLEGIA HEAT EXCHANGERS
Original language description
Cardiac surgeries that involve cardiopulmonary bypass technique require a stable temperature maintenance for oxygenated blood or the cardioplegia solution. For this purpose, the heat exchangers are used. Nowadays, these exchangers consist of stainless steel tubes or bellows in a plastic shell. The blood is then warmed or cooled by water flowing in the shell around these structures. In the paper, the thermal specifications of two commercially used cardioplegia heat exchangers Capiox Cardioplegia and MYOtherm XP were evaluated and compared. For this purpose, a water was used as a substitution for blood. Both components were tested for varying flow rates in the pipes in the range 20-150 l/h and fixed flow rate 700 l/h in the shell. The thermal performances of both devices resulted similarly (up to 2.4 kW) at maximal flow rate. The performance factors for low flow rates approached values close to 0.98 and with increasing flow rate decreased down to 0.50. MYOtherm XP shows lower pressure drop than Capiox Cardioplegia due to more optimal construction. The major difference between the heat exchangers was observed in overall heat transfer coefficients at maximal flow rate and resulted in 2191.3 W/m(2)K or 1760.2 W/m(2)K for MYOtherm XP or Capiox Cardioplegia, respectively.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
<a href="/en/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Research centre for low-carbon energy technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ENGINEERING MECHANICS 2020 (IM2020)
ISBN
978-80-214-5896-3
ISSN
1805-8248
e-ISSN
—
Number of pages
4
Pages from-to
82-85
Publisher name
BRNO UNIV TECHNOL, FAC MECHANICAL ENGINEERING
Place of publication
BRNO
Event location
Online
Event date
Nov 24, 2020
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000667956100013