Thermal and economic analysis of preinsulated and twin-pipe heat network operation
Authors:
- Marzena Nowak-Ocłoń,
- Paweł Ocłoń
Abstract
This study focuses on the economic analysis of the heating network modernization by using preinsulated pipes and twin-pipes. The cost analysis is based on different type, diameter, and technological diagrams of different heating network pipe variants (from DN25to DN100) and various types of insulation. Net present value (NPV) analysis comparing a five variants of the heating network pipes (Case 0: Pipes with insulation PUR standard; Case 1: Pipes with insulation PUR plus; Case 2: Pipes with insulation PEX standard; Case 3: Twin-Pipes with insulation PUR; Case 4: Twin-Pipes with insulation PEX). The value of NPV, which is the highest (NPV = 7000 €, DN65, case 2 and NPV= 5200 €, DN50, case 4) among presented variants is the best choose to consider during the investment. Despite the higher prices of Twin Pipe system, they are more profitable due to shallow heat transfer losses.. Heat losses are calculated for various heating networks, including preinsulated and twin-pipe heating networks. The remaining heat loss calculation is based merely on temperature levels and thermal resistance factors (in the ground), determined using the pipe dimensions and materials.
- Record ID
- CUTcccb1667cff54eab8345db24d4cb8daf
- Publication categories
- ;
- Author
- Journal series
- Energy, ISSN 0360-5442, e-ISSN 1873-6785
- Issue year
- 2020
- Vol
- 193
- Pages
- [1-9]
- Article number
- 116619
- Other elements of collation
- schem.; tab.; wykr.; Bibliografia (na s.) - 9; Bibliografia (liczba pozycji) - 22; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 193
- Keywords in English
- the district heating network, heat loses, economic analysis, NPV
- DOI
- DOI:10.1016/j.energy.2019.116619 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/abs/pii/S036054421932314X?via%3Dihub Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 200
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTcccb1667cff54eab8345db24d4cb8daf/
- URN
urn:pkr-prod:CUTcccb1667cff54eab8345db24d4cb8daf
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.