Plastic Pipes Conference Association # 2021 Amsterdam
Alex Stolarz, Klaus Grønnegaard Lauridsen
Low temperature District Heating – COOL DH – addresses the challenges of the upcoming decades in the energy sector for new housing developments. Energy efficiency is an important aspect of modern building construction. Improved building insulation and other technologies result in lower heat demand and enable new developments in heating systems like district heating. The project has gone an innovative path and developed pre-insulated pipe systems that operate at lower temperature – thus being more economical, effective and sustainable than conventional high temperature district heating systems – to address these new challenges. New materials such as PE-RT resins are explored in this segment that offer new installation techniques and allow for the first time the use of welding technologies in a wider scale in this industry sector. Resin capability is explained and explored, and the case study of this project is explained addressing challenges of modern energy management.
Related papers
Author(s) : Ajay Taraiya, Peter Degenhart, Mark Boerakker
In PPXX, a technology was presented for the first time that could bi-axially orient polyolefin pipes. With this technology, it is possible to prepare pipes that have a performance far beyond the standard ones. One approach to achieving this performance is via a continuous in-line process. To optimize the in-line...
Author(s) : Olivera Bilic, Vivek Rohatgi, Brody Peterson, David Hukill
Demand for conduit pipe is expected to surge globally due to rapid industrialization and urbanization in residential and commercial sectors. Just in the U.S., according to Market Research analysis, expected growth of the plastic conduit pipe market is at a CAGR of more than 5% over the next ten years. In response to...
Author(s) : Joseph Melesio Venegas
Digital tools can be a catalyst to accelerate the change we need to meet the goals of the Paris Climate Agreement (“The Paris Agreement”). Across all industries and all walks of life we need to speed up the pace of sustainable innovation. Fortunately, within the plastic pipe industry we have several forms of...
Author(s) : Xin Zhou, Abdullah Saber, Shuqiang Wang, Huilong Chen
PE-RT II (PE100 classification) is designed >50 years lifespan at elevated temperature which aims to the growing demands on the applications of hot water and other industrial applications. District heating is a growing market in Greater China. However, the conventional pipes have serious corrosion issue in this...
Author(s) : Joe Babcanec, P.E., Issam Khoury, Ph.D, P.E., Shad Sargand,
The use of corrugated HDPE and PP pipe for gravity flow storm sewers is a growing trend throughout the United States. Many of these drainage pipes are buried in shallow cover conditions under roads with heavy traffic. It is well established that thermoplastic pipe installations under shallow cover respond differently...
Author(s) : Dolores Herran
MOLECOR continuing with its line of leading water infrastructure sector with its technological products, has recently developed a software that can be used through a mobile application or web browser with which users can digitalize and geolocate the different pieces that form a water infrastructure network. This is a...
Author(s) : Yi Zhong, Qianshi Ma, Haihua Yu
BSTRACT The residential district adopts central heating for low temperature radiators system. Due to the disrepair of the secondary heating pipe network that pipe from heat exchange station to user entrance, the running, leaking, dripping and leakage are serious, and the accidents occur frequently. The heat...
Author(s) : Amster Howard
This paper explores the use of a composite soil stiffness as a valuable design tool to consider when a pipeline traverses through poor soil conditions. Thermoplastic pipe are flexible pipe and require good soil support at the sides of the pipe to minimize deflection. However, sometimes the trench walls are weak soils...
Author(s) : Michael O’Rourke
The required wall thickness for a fully fused HDPE water main subject to an earthquake induced lateral spread is addressed in this paper. The water main is assumed to be buried via cut and cover (i.e., open cut with typical burial depths in the 2 to 15 feet range) procedures and any laterals have small diameters. For...
Author(s) : James F. Mason, Akshay Ponda, Hermann van Laak, Tobias Bauer
The long-term strength of unplasticized polyamide 12 (PA-U12) has been characterized using standard methods for plastic pressure pipe during the qualification process for use in buried piping systems for natural gas delivery operating at low ambient temperatures, usually less than 20 to 30°C at pressures...
Author(s) : Dr. Michael Pluimer, Sara Stone
The Notched Constant Ligament Stress test (NCLS test, ASTM F2136)[1] is a test method that measures the slow crack growth in High Density Polyethylene. The NCLS test requires a notch on all test specimens to act as a stress concentration at that point so crack propagation can be easily predicted and studied. In...
Author(s) : Sunwoong Choi, Robert Stakenborghs , Pyeongan Lee, Byoungho Choi
This work developed a hydro-axial tension (HAT) test as a whole pipe axial tensile test and applied to evaluate the polyethylene (PE) pipe and fusion joints containing various flaws. HAT test was designed to utilize hydrostatic pressure to cause axial tension in pipes. The experimental and numerical analysis was...
Author(s) : Jacob John, Suresh Shenoy, Patrik Roseen
Cross-linked polyethylene (PEX) pipes continue to gain popularity in plumbing and indoor climate applications around the globe. This study focuses on increasing the sustainability of PEX pipes by utilizing recycled PEX and production waste streams into PEX production. Different methods available for recycling and the...
Author(s) : Aisha Khaleel, Suleyman Deveci, Sulistiyanto Nugroho, Fatima AlHameli
The use of polyethylene pipes in transportation networks of pressurized water and gas have shown superb performance over the history. High density, high-molecular-weight, and bi-modal polyethylene materials, known as PE80, PE100 and PE100RC, have successfully served the market for many years in standard applications....
Author(s) : Jie Wu, Yushan Hu, Todd Hogan
Recycling of plastic materials is key to demonstrating that these high value materials are much more than a waste stream and a key component of a sustainable future. The plastic pipe market effectively utilizes in-plant recycle systems where standards and codes allow processors to recapture the value of these...
Author(s) : Mitsuaki TOKIYOSHI, Yutaka SAWADA, Yasuhiko OTSUKI, Kensei INOUE, Takashi KURIYAMA, Toshinori KAWABATA
Polyethylene reinforced with short glass fibres (PE-sGF) pipe, manufactured by combining short fiber glass (sGF) with PE100 as a reinforcing material, has a higher pipe rigidity in the pipe circumferential direction than that of PE100 because of the reinforcing effect of the reinforcing material and a performance...
Author(s) : Kevin White, Shad Sargand
The current standard of practice for the installation of agricultural mains is in accordance with ASTM F449, Standard Practice for Subsurface Installation of Corrugated Polyethylene Pipe for Agricultural Drainage or Water Table Control. ASTM F449 has several limitations. Currently, the allowable maximum height of...
Author(s) : Rafael A. García-Muñoz, Rafael Juan, Mónica de la Cruz, Beatriz Paredes, Carlos Domínguez
Plastics are widely used in various industries, resulting in the generation of significant amounts of plastic waste, which causes environmental and economic problems. Although mechanical recycling is the most commonly employed technology, the resulting recyclates often suffer from degradation and contamination. This...
Author(s) : Yanlei Hu, Jin Sun
Slow crack growth is the main reason for brittle failure of polyethylene pipes. At present, the traditional slow crack growth test generally has many problems, such as too long test time, using chemical reagents that pollute the environment, poor reproducibility, etc., which limit the accurate evaluation of the slow...
Author(s) : Rachel Anderson, Rujul Mehta, Alex Stolarz, Todd Hogan, Stephanie Whited, Joel Wieliczko
Growing worldwide demand for sustainably made irrigation systems has driven the creation of new resins for longer-lasting, more durable, recycle friendly, and cost-effective pipe that can better tolerate extreme conditions year after year. Microirrigation systems deliver vital water and nutrients where they’re needed...
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